RE 64276/05.2015, Bosch Rexroth AG
Features
▶ Flow control independent of load pressure
– Open center for fixed pump
– Closed center for variable displacement pump
▶ Sandwich plate design with up to 20 directional valves
▶ Mono block with 1 axis, expandable with max. 9
directional valves
▶ Type of actuation: mechanical, hydraulic, electrohydraulic
(switching, proportional or with on-board electronics)
▶ Pressure limitation
– Inlet plate: pilot operated pressure valves of large
nominal width
– Directional valve/consumer ports: compact shock
valves with feed function
▶ LS pressure limitation
– Adjustable per consumer port
– External pressure setting per consumer port possible
– Electro-proportional per section
Fields of application
▶ Truck applications
▶ Drilling equipment
▶ Forestry machinery
▶ High-capacity forklifts
and teleforklifts
▶ Municipal vehicles
▶ Cranes
▶ Construction machines
▶ Aerial work platforms
▶ Heavy duty vehicles
▶ Marine engineering
▶ Mining applications
▶ Stationary applications
▶ Size 12
▶ Series 2X
▶ Nominal pressure
– on pump side 350 bar
– on consumer side 420 bar
▶ Maximum flow
– on pump side 300 l/min
– 130 l/min on the consumer side with pressure
compensator and load holding function
RE 64276
Edition: 05.2015
Replaces: 08.2010
Contents
Functional description 2
Technical data 3
Modular system 5
Ordering code 8
Order examples 13
Inlet plates 17
Mono block 20
Directional valves 22
Type of actuation 29
Secondary valves 32
Available housing variants 34
End plates 35
Dimensions 37
On-board electronics: Electronic pilot module (EPM) 50
Accessories 52
M4 configurator 54
Related documents 54
5M4-12 with mono inlet
Load sensing control block in mono block / sandwich plate design
M4-12
Bosch Rexroth AG, RE 64276/05.2015
2 M4-12 | Control block
Functional description
Functional description
Control block M4-12
The directional valves are proportional valves according to
the load sensing principle.
Consumer control
The main spool (2) is used to determine the flow direction
and the flow level that reaches the consumer ports (A or B).
Pressure reducing valves (10) control the position of the
main spool (2). The size of the electric current on the
pressure reducing valve determines the level of the pilot
pressure in the spring chambers (9) and thereby the stroke
of the main spool (P → A; P → B).
The pressure compensator (3) keeps the pressure differen-
tial on the main spool (2) and thereby the flow to the con-
sumers constant.
Load pressure compensation
The pressure compensator (3) regulates pressure changes
on the consumers or on the pump. The flow to the consum-
ers remains constant, including with varying loads.
Flow limitation
The maximum flow can be individually set mechanically at
the factory according to the ordering code using the stroke
limitations (7).
Pressure limitation
The LS pressure for each consumer port can optionally be
overridden internally via the LS pressure relief valves (4),
electro-proportionally for each spool axis or externally via
the LS ports M
A
, M
B
.
Shock valves with large nominal widths with combined feed
function (5) protect consumer ports A and B against pres-
sure peaks.
The highest load pressure on the pump is reported via the
LS line and the integrated shuttle valve (8).
Section M4-12 Symbol M4-12
M
A
M
B
18
413 2
7
3
911
12
14
9
10
5 6
X
Y
„a“
„b“
T
T
P
A B
LS
P
7
8
4 2 7
310
56
B
A
P X Y LS T
A
a
b
B
P T
M
A
M
B
1 Housing
2 Main spool
3 Pressure compensator
4 LS pressure relief valves
5 Shock valve with
feed function
6 Threaded plug
7 Stroke limiter
8 LS shuttle valve
9 Spring chamber
10 Pressure reducing valves
11 Pressure spring
12 Hand lever
13 Cover A side
14 Control B side
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Technical data
3
Technical data
General
Weight Inlet plate P SP J SJ JZ JK
kg 6 11.4 4.3 11 8.4 11
Mono block PM JM
kg 5.6 3.8
Directional valve M H W CBA
kg 4.9 4.2 4.5 4.8
Hand lever surplus weight kg 0.6
End plate LA LAPT LA… LA… … LZ LZPT
kg 3 4.3 3.8 3.8 2.8 4.4
LU LU… L8 TI
kg 3.5 4 4.5 6.3
Installation position Any
Consumer connection type Pipe thread in accordance with ISO 228/1
Ambient temperature range
θ
°C –20 to +80 (to −40 °C on request)
Priming (standard) One-coat paint RAL 5010 (more on request)
Surface protection according
to DINEN60068-2-11
Standard priming h 96
Special painting h 480
Painting for SO-038 h 1000
Mechanical
Actuating force
on the hand lever
(encapsulated)
Mechanically operated N < 20
Mechanical override
(with parallel hydraulic actuation)
N < 70
Mechanical override
(with parallel electrohydraulic actuation)
N < 50
Actuating force
in spool axis (not
encapsulated)
Tongue N < 250
Detent with hand lever N < 350
Hydraulic
Maximum working pressure at port P
p
max
bar 350 (420 on request)
A, B
p
max
bar 420
LS
p
max
bar 350
T
p
max
bar 30 (20 with purely mechanical actuation)
Y
p
max
bar Must be routed to tank without pressure
Maximum pilot pressure
at port
a, b
p
St
bar 35
X
p
St
bar 35
Pilot pressure range Hydraulic
p
St
bar 8.5 to 22.5
Electrohydraulic
p
St
bar 6.5 to 17.2
Required differential pressure
control on the control block
Version S, C
p
bar 18
Recommended hydraulic pilot controls TH 6... Control curve 97, see data sheet 64552
Required pump controller Controller without LS connection to tank, e.g. DFR1, DRS
Maximum primary pressure limitation
p
bar 370 (set at the factory according to ordering code), min.
20bar above the pressure cut-off value of the pump
Bosch Rexroth AG, RE 64276/05.2015
4 M4-12 | Control block
Technical data
Hydraulic
LS pressure limitation
p
bar 50 to 350
(set at the factory according to ordering code)
The highest reduce response pressure of the valve
block LS pressure relief valves set at the factory must
be at least 20 bar lower than the pressure cut-off value
of the pump.
Maximum flow Inlet plate P P … P100 SP J SJ
Port P
q
Vmax
l/min 150 100 120 150 150
JZ JK PM JM
q
Vmax
l/min 200 300 130 150
Directional valve
Port A, B
q
Vmax
l/min 130 with pressure compensator and load holding function
End plate LAPT LZPT
Port P
q
Vmax
l/min 100 100
Hydraulic fluid Mineral oil (HL, HLP) according to DIN 51524, HEES
(synthetic ester) according to VDMA 24568 and other
hydraulic fluids on request
Fluid temperature range
θ
°C –20 to +80
–40 to +80 on request
Viscosity range
ν
mm²/s 10 to 380
Maximum admissible degree of contamination of the hydraulic
fluid, Cleanliness level according to ISO 4406 (c)
Class 20/18/15, we recommend a filter with a mini-
mum retention rate of β
10
≥ 75
Electric
Electrical pilot control valve FTWE2K...; see data sheet 58007
1)
FTDRE2K...; see data sheet 58032
1)
Recommended amplifier (more control options on request) RA 1-0/10; 1 axis, see data sheet 95230
RA 2-1/10; 4 to 6 axes, see data sheet 95230
Control units RC, see data sheet 95200
On-Board Electronics (EPM2) Data from page 50; also refer to instruction manual
64815-B
Note
▶ Please contact us if the unit is to be used outside the
specified range of values.
▶ The technical data were determined at a viscosity of
ν = 32 mm²/s (HLP46: 50 °C).
1) Plug-in connectors are not included and must be ordered separately,
see page 53.
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Modular system
5
Modular system
Control blocks in the M4-12 series have a modular struc-
ture. They can be combined to provide the perfect solution
for the application at hand.
Control block with lateral inlet plate
1. Inlet plate
A: Mono block JM, combined with 1 spool axis
B: Open center P
C: Closed center J
2. Directional valves
2.1 LS pressure limitation
2.2 Secondary pressure limitation
2.3 Actuation A side
A: Mechanical actuation A
B: Mechanical actuation M
C: Hydraulic actuation H
D: Electrohydraulic actuation W
E: Electrohydraulic actuation with
on-board electronics EPM2 CBA
2.4 Actuation B side
A: Mechanical actuation Z with tongue
B: Mechanical actuation N with hand lever
C: Standard cover –
D: Mechanical actuation K with hand lever
E: Mechanical actuation B2 with hand lever
2.5 Electro-proportional LS pressure limitation
3. End plate
A: With LS unloading LA
B: With LS port LZ
C: With two installation bores LAW…W…
2.4
2.
2.2
3.
2.1
2.3
1.
2.5
A
B
C
A
B
C
D
A
B
C
A
B
C
E
D
E
Bosch Rexroth AG, RE 64276/05.2015
6 M4-12 | Control block
Modular system
Control block with central inlet plate
1. Central inlet plate JZ
2. Directional valves
2.1 LS pressure limitation
2.2 Secondary pressure limitation
2.3 Actuation A side
A: Mechanical actuation A
B: Mechanical actuation M
C: Hydraulic actuation H
D: Electrohydraulic actuation W
E: Electrohydraulic actuation with
on-board electronics EPM2 CBA
2.4 Actuation B side
A: Mechanical actuation Z with tongue
B: Mechanical actuation N with hand lever
C: Standard cover –
D: Mechanical actuation K with hand lever
E: Mechanical actuation B2 with hand lever
2.5 Electro-proportional LS pressure limitation
3. End plate
A: Diversion plate LU
B: With two installation bores LUW…W…
C: With LS unloading LA
D: With LS port LZ
E: With two installation bores LAW…W…
2.3
D
E
2.
2.
2.2
3.
2.1
3.
2.5
1.
D
E
C
A
B
2.4
A
B
C
D
E
A
B
C
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Modular system
7
Mono block
1. Mono block PM, JM
(combined inlet, 1 spool axis and end plate)
1.1 LS pressure limitation
1.2 Secondary pressure limitation
1.3 Primary pressure limitation
1.4 Electro-proportional LS pressure limitation
1.5 LS switch-off
1.6 Actuation A side
A: Mechanical actuation A
B: Mechanical actuation M
C: Hydraulic actuation H
D: Electrohydraulic actuation W
E: Electrohydraulic actuation with
on-board electronics EPM2 CBA
1.7 Actuation B side
A: Mechanical actuation Z with tongue
B: Mechanical actuation N with hand lever
C: Standard cover –
D: Mechanical actuation K with hand lever
E: Mechanical actuation B2 with hand lever
2. Flange-mountable directional valves
1.4
1.3
1.5
1.7
1.
1.2
1.1
2.
1.6
A
B
C
D
E
A
B
C
D
E
210
Bosch Rexroth AG, RE 64276/05.2015
8 M4-12 | Control block
Ordering code
Ordering code
Specifications on the name plate
The ordering code is used to record the technical features
and requirements.
The Rexroth distribution organization uses the ordering
code to derive a short type and a material number.
The complete control block is defined as per the type code
according to ZN46001-10.
For recording the ordering code, the M4configurator is
alternatively available at: www.boschrexroth.com/m4
Example: M4-12-Control block with three directional valves
01 02 03 04 05 06 07 08 09 10 11 12
M4 – G12345 – 2 0 / 3 M4-12 J W21 – V 01 -450
01 Model: Load sensing control block M4
02 6-digit control block number
03 Series 2X (unchanged installation and connection dimensions)
04 Series amendment status
05 Total number of spool axes (1 to 20)
1)
06 Size, directional valve
07 Inlet plate
08 Actuation A side (mostly)
09 Actuation B side (mostly)
10 Sealing material
11 Line connections
12 Optional: Special number
Note
The control blocks M4-12 can also be supplied in explo-
sion-proof design for explosive areas. Please refer to data
sheet 64276-X-B2 for more information.
1) A maximum of 10 directional valves per side is possible
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Ordering code
9
Ordering code sequence
M4-12-2X / Inlet plate
Directional valves
End plate, additional information
Inlet plate
01 02 03 04 05 06
M4-12-2X /
Design, system
01 Open center Lateral inlet plate
P
Lateral inlet plate with integrated switch-over axis
SP
Closed center Lateral inlet plate
J
Lateral inlet plate with integrated switch-over axis
SJ
Central inlet plate
JZ
Central inlet plate for combination M4-12/M4-15
JK
Mono block Open center (installation of further directional valves is not possible)
PM
Closed center (installation of further directional valves is possible; available only in variants …M…)
JM
Primary pressure limitation
02
Without primary pressure relief valve (not retrofittable, only for inlet JZ)
Z
Without primary pressure relief valve (retrofittable, not possible with open center inlet P)
Q
With primary pressure relief valve (specified pressure in bar, 3-digit, not possible with open center mono block P)
…
Pilot oil supply
03 With internal pilot oil supply (only in conjunction with closed center inlet plate)
Y
For external pilot oil supply
X
Option 1
04 With LS switch-off (only in conjunction with inlet J, P)
A
With LS damping nozzles, specification of the nozzle diameter in mm, e.g. S0.6–0.6 (only in conjunction with inlet P)
S…–…
Without LS damping nozzles (retrofittable, only in conjunction with inlet P)
N
With switching position detection (only in conjunction with inlet SJ)
D
Without switching position detection (only in conjunction with inlet SJ)
B
Option 1 – specification is only required for inlet SJ
05 External flow at port C 8 l/min
Q008
26 l/min
Q026
40 l/min
Q040
80 l/min
Q080
150 l/min
Q150
Option 2
06 With unloading function, max. flow on the pump side 100 l/min (only in conjunction with inlet P)
P100
= Preferred program
Bosch Rexroth AG, RE 64276/05.2015
10 M4-12 | Control block
Ordering code
1) For possible housing/secondary valve combinations, see page 34
2) Please consult out technical sales department
3) Exact specifications in plain text, see information from page 25
4) For symbols, see “Main spool” on page 27
= Preferred program
Directional valves
01 02 03 04 05 06 07 08 09 10 11 12 13
M4-12-2X / *
1. Spool axis
*
2. Spool axis
*
3. Spool axis, etc.
Pressure compensator
01 With pressure compensator, with load holding function
S
Without pressure compensator, with load holding function (not in conjunction with PM)
C
Without pressure compensator, without load holding function
Q
With sensitive pressure compensator, with load holding function
F
With 3-way pressure compensator (in conjunction with PM only)
D
With pressure compensator, with priority function (only in conjunction with JM)
V
Without pressure compensator bore for switch-over axis
Z
LS pressure limitation and housing variant
1)
02
03
04
02
04
Without LS pressure relief valve (LS-PRV not retrofittable; only Z or U are possible)
Z Z
With threaded plug (Z not possible)
Q Q
With LS pressure relief valve (specified pressure in bar, 3-digit; Z not possible)
… …
With 1 LS pressure relief valve for same pressure setting in A and B (specified pressure in bar, 3-digit)
= …
LS relief plug
B B
03 Housing with measuring ports
M
Housing without measuring ports
Z
Housing for switch-over axis (only combination ZUZ possible)
2)
U
Housing for electro-proportional pressure limitation or switchable directional valves
3)
K
– 210 bar, decreasing characteristic curve
3)
L
– 210 bar, increasing characteristic curve
3)
J
– 350 bar, decreasing characteristic curve
3)
R
– 350 bar, increasing characteristic curve
3)
N
Housing for hydraulic pressure control, with LS and PST outlet
3)
C
Spool type
4)
05 Main spool E
E
Main spool J
J
Main spool Q
Q
Main spool with regeneration function
R
Plunger cylinder as a consumer
2)
P
Floating position spool
2)
W
Floating position spool
2)
Y
Flow
06 Flow in consumer port A and B (parameter in l/min, 3-digit)
…–…
Main spool with pressure function T (only in conjunction with E, J or Q)
2)
…T…
Main spool with pressure function T (only in conjunction with E)
2)
…M…
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Ordering code
11
Actuation A side
07 Purely mechanical Spring-centered
A
With detent in 1
B1
With detent in 2
B2
With detent in 1, 2
B4
Mechanical
5)
Encapsulated, spring-centered
M
Hydraulic
6)
H
Electrohydraulically proportional Standard
W2
With measuring ports, on both sides
W8
With nozzle + check valve for hydraulic superposition
G2
Electrohydraulically switchable Standard
W4
With damping nozzles, on both sides
W5
With measuring ports, on both sides
W6
With damping nozzle, with measuring ports, on both sides
W7
With nozzle + check valve for hydraulic superposition
G4
Electrohydraulic with digital
on-board electronics (EPM2)
Standard
CBA
With position sensor
CPA
Supply voltage and connector type
7)
24 V 12 V
08 Junior Timer, 2-pin (AMP)
1 3
DT04-2P (Deutsch)
8 9
Actuation B side
8)
09 Purely mechanical, spool end with tongue
Z
Purely mechanical, spool end with tongue and hand lever
2)
N
Standard cover
–
Cover with hand lever
Revolving Not revolving
Without hand lever
R X
Hand lever position 60°
K N
Hand lever position 0°
L O
Hand lever position -60°
M P
Secondary valves for consumer ports A and B
1)
10
11
None
9)
Flange surface
2)
F
Consumer port G 3/4
Z
Consumer port G 1/2
X
With threaded plug (secondary valves are retrofittable)
Q
With Shock/feed valve, adjustable
A…
Shock/feed valve, non-adjustable
H…
Special number
12 One-sided actuation, two switching
positions
-011
13 Further specifications in plain text
*
5) Always in conjunction with revolving hand lever
6) For combination with mechanically superposed actuation (B side),
Bosch Rexroth recommends a non-revolving hand lever
7) Parameter only required with electrohydraulic actuation and with
electro-proportional pressure limitation
8) For more details and explanations, see “Variant overview” on
page 31
9) Secondary valves must be present in the hydraulic circuit
= Preferred program
Bosch Rexroth AG, RE 64276/05.2015
12 M4-12 | Control block
Ordering code
End plate, additional information
01 02 03 04 05 06
M4-12-2X / *
End plate
01
With LS unloading LA
with additional P and T port LAPT
with two installation bores LA
Threaded plug Q Q
Electrohydraulically proportional W2 W2
Electrohydraulically switchable W4 W4
with three installation bores LA
Threaded plug Q Q Q Q Q Q
Pressure reducing valve (specified pressure in bar, 3-digit) … … …
4/2-way spool valve according to data sheet 18136-05
(specifications in plain text)
KKDER… KKDER… KKDER…
Without LS unloading LZ
with additional P and T port LZPT
Mono block, no end plate LM
Adapter plate for SP-08 directional valves + inlet pressure limita-
tion (specified pressure in bar, 3-digit)
L8
Adapter plate for Bosch Rexroth Oil Control
1)
TI
Diversion plate for use with central inlet plate LU
with two installation bores LU
Threaded plug Q Q
Electrohydraulically proportional W2 W2
Electrohydraulically switchable W4 W4
Sealing material
02 FKM (fluoroelastomer)
2)
V
NBR (nitrile rubber) (on request)
M
Low temperature range to –40°C (on request)
T
Line connections
03 Pipe thread in accordance with ISO 228/1
3)
01
Supply voltage and connector type
4)
24 V 12 V
04 Junior Timer, 2-pin (AMP)
1 3
DT04-2P (Deutsch)
8 9
Special number
05 Increased corrosion protection
1)
-038
Aluminum-free
-450
For safety-related applications
S
06 Further specifications in plain text
*
1) Please consult out technical sales department
2) The block preferably contains FKM, but also NBR seals.
3) See “Line connections” on page 37. For UNF thread, see data
sheet 64272
4) Parameter only required with electrohydraulic actuation and with
electro-proportional pressure limitation
= Preferred program
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Order examples
13
Order examples
Closed center with mono block and switch-over axis
Example: – Three fold control block with 3 directional valves
– Variable pump q
V, max
= 150 l/min via inlet
+ 100 l/min via end plate is possible
Ordering codes:
Inlet, com-
bined with
1. Spool axis
– Closed center, mono block
– Without primary pressure relief valve
– With internal pilot oil supply
Short type, inlet
01 02 03
3 M4 – 12 – 2X / JM Z Y
– With pressure compensator, with load holding
function
– With LS pressure relief valve for consumer port A
180 bar, consumer port B plugged
– Spool symbol J
– Flow in A and B 100 l/min
– Type of actuation: electrohydraulically proportional
– With Junior Timer, 2-pin (AMP) 24 V
– Secondary valves: Pressure/feed valve, consumer
port A and B 350 bar (not adjustable)
1. Spool axis
01 02 03 04 05 06 07 08 09 10 11
S 180 M Q J 100–100 W2 1 – H350 H350
2. Spool axis – Without pressure compensator, switch-over axis
– Without LS pressure relief valve bore
– Housing for switch-over axis
– Spool symbol J
– Flow in C 65 l/min, 90l/min for internal consumers
– Type of actuation: electrohydraulic switchable
– With Junior Timer, 2-pin (AMP) 24 V
– Without secondary valve (not retrofittable)
2. Spool axis
01 02 03 04 05 06 07 08 09 10 11
Z Z U Z J 065-090 W4 1 – Z Z
3. Spool axis – With pressure compensator, with load holding
function
– Without LS pressure relief valve bore
– Spool symbol J
– Flow in A and B 85 l/min
– Type of actuation: digital OBE
– Overriding hand lever (revolving)
– Without secondary valve (not retrofittable)
3. Spool axis
01 02 03 04 05 06 07 09 10 11
S Z Z Z J 085-085 CBA K Z Z
End plate,
additional
information
– Without internal LS unloading, with LS port, with P
and T port
– FKM seals
– Pipe thread connections
End plate, additional information
01 02 03
LZPT V 01
B1
A1
C
A
a
b
B
P T
B3
A3
A
a
b
B
P T
M
A
M
B
T
P
LS
Z
LS
X
Y
P
T
A
a
b
B
P T
Bosch Rexroth AG, RE 64276/05.2015
14 M4-12 | Control block
Ordering code
Open center with lateral inlet plate
Example: – Three fold control block with 3 directional valves
– Fixed pump q
V, max
= 150 l/min
Ordering codes:
Inlet – Open center, lateral
– With primary pressure relief valve, set to 300 bar
– With internal pilot oil supply
Short type, inlet
01 02 03
3 M4 – 12 – 2X / P 300 Y
1. Spool axis – Without pressure compensator, with load holding
function
– With LS pressure relief valve for consumer port A
250 bar and LS relief plug in B
– Spool symbol E
– Flow in A 50 l/min, port B plugged
– Type of actuation: mechanical, spring-centered,
not encapsulated, with tongue
– Secondary valve: adjustable shock/feed valve for
actuator port A 230 bar, secondary valve bore B
plugged
1. Spool axis
01 02 03 04 05 06 07 09 10 11
C 250 M B E 050-000 A Z A230 Q
2. Spool axis – Without pressure compensator, without load hold-
ing function
– With 1 LS pressure relief valve for consumer ports
A and B 275 bar
– Spool symbol E
– Flow in A and B 100 l/min
– Type of actuation: hydraulic
– Secondary valve: non-adjustable shock/feed valve
for actuator port A 100 bar, adjustable shock/feed
valve for consumer port B 230 bar
2. Spool axis
01 02 03 04 05 06 07 09 10 11
Q = M 275 E 100–100 H – H100 A230
3. Spool axis – With pressure compensator, with load holding
function
– Without LS pressure relief valve bore
– Spool symbol J
– Flow in A and B 70 l/min
– Type of actuation: electrohydraulically switchable,
with damping nozzle, with measuring ports
– With DT04-2P connector (Deutsch) 24 V
– Hand lever cover, not revolving, without hand lever
– Without secondary valve (not retrofittable)
3. Spool axis
01 02 03 04 05 06 07 08 09 10 11
S Z Z Z J 070-070 W7 8 X Z Z
End plate,
additional
information
– With internal LS unloading
– FKM seals
– Pipe thread connections
End plate, additional information
01 02 03
LA V 01
Y
P
LS
T
XM B1A1 B2A2 B3A3
A B
P T
M
A
M
B
ba
A B
P T
M
A
A
a
b
B
P T
M
a
M
b
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Ordering code
15
Closed center with central inlet plate
Example: – Two fold control block with 2 directional valves
– Variable pump q
V, max
= 200 l/min
Ordering codes:
Short type,
diversion
plate
– Diversion plate Short type, diversion plate
01
2 M4 – 12 – 2X / LU
1. Spool axis
– With pressure compensator, with load holding
function
– Without LS pressure relief valve bore
– Spool symbol E
– Flow in A and B 100 l/min
– Type of actuation: electrohydraulically proportion-
al with measuring ports on both sides
– With Junior Timer, 2-pin (AMP) 24 V
– Overriding hand lever (revolving)
– Secondary valve bores plugged
1. Spool axis
01 02 03 04 05 06 07 08 09 10 11
S Z Z Z E 100–100 W6 1 K Q Q
Inlet
– Closed center, central
– With primary pressure relief valve, set to 300 bar
– With internal pilot oil supply
Inlet
01 02 03
JZ 300 Y
2. Spool axis
– With pressure compensator, with load holding
function
– With LS pressure relief valve for consumer port A
270 bar, consumer port B 300 bar
– With electro-proportional Pressure limitation,
210bar (decreasing characteristic curve)
– Spool symbol E
– Flow in A and B 90 l/min
– Type of actuation: digital OBE
– Overriding hand lever (revolving)
– Secondary valve bores plugged
2. Spool axis
01 02 03 04 05 06 07 09 10 11 13
S 270 L 300 E 090-090 CBA K Q Q KBPSL8BA
End plate,
additional
information
– With internal LS unloading
– FKM seals
– Pipe thread connections
End plate, additional information
01 02 03
LA V 01
LS
T
Y
P
X
B2
A2
A
a
b
B
P T
M
A
M
B
A
a
b
B
P T
B1A1
M
a
M
b XMPYPLS
T
M
Bosch Rexroth AG, RE 64276/05.2015
16 M4-12 | Control block
Ordering code
Closed center with combination inlet plate for M4-12 and M4-15 directional valves
Example: – Three fold control block with 3 directional valves
– Variable pump q
V, max
= 200 l/min
Ordering codes:
Short type,
diversion
plate
– Diversion plate Short type, diversion plate
01
3 M4 – 15 – 2X / LU
1. Spool axis
M4-15
– With pressure compensator, without load holding
function
– With LS pressure relief valve for consumer port A
230 bar and LS relief plug in B
– Spool symbol E
– Flow in A 190l/min, port B plugged
– Type of actuation: digital OBE
– Overriding hand lever (revolving)
– Secondary valve bores plugged
1. Spool axis
01 02 03 04 05 06 07 09 10 11
T 230 M B E 190-000 CBA K Q Q
Inlet – Central closed center for M4-12/M4-15
– With primary pressure relief valve, set to 280 bar
– With internal pilot oil supply
Inlet
01 02 03
JK 280 Y
2 and 3.
Spool axis
M4-12
– With pressure compensator, with load holding
function
– With LS pressure relief valve for consumer port A
180 bar, consumer port B 120 bar
– Spool symbol E
– Flow in A and B 90 l/min
– Type of actuation: digital OBE
– Without secondary valve bores
2. Spool axis
01 02 03 04 05 06 07 09 10 11
S 180 M 120 E 090-090 CBA – Z Z
3. Spool axis
01 02 03 04 05 06 07 09 10 11
S 180 M 120 E 090-090 CBA – Z Z
End plate,
additional
information
– With internal LS unloading
– FKM seals
– Pipe thread connections
End plate, additional information
01 02 03
LA V 01
LS
T
Y
P
X
B2
A1
A
a
b
B
P T
M
A
M
B
B2
A2
A
a
b
B
P T
M
A
M
B
B3
A3
A
a
b
B
P T
M
A
M
B
X
M
Y
PLS
T
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Inlet plates
17
Inlet plates
Open center (P)
With primary pressure relief valve, with internal pilot oil
supply
Ordering code:
P … Y
▶ Specified pressure in bar required after P (3-digit)
M
X
YP LS T
With LS switch off
Ordering code:
P … X A
▶ LS line connected to the Y-line to the tank in de-ener-
gized condition
▶ All downstream M4-12 sections remain in load holding
M
YP LS T
With LS damping nozzle and sensitive pressure
compensator
Ordering code:
P Q X S0.6–0.6 P100
▶ Nozzle diameter parameter in mm required after S
(
standard: 0.6–0.6)
▶ Sensitive unloading function
▶ Maximum flow 100 l/min on the pump side
M
X
YP LS T
Pilot oil supply (Y)
▶ Pressure limitation 45 bar
▶ Pilot pressure max. 30
+5
bar
Note
With internal pilot oil supply, pilot oil for other consumers
can also be directed via the X port. However, this can
affect the switching times on the M4-12. Please consult
technical sales for information about potential impacts.
With an external pilot oil supply, the X port is not gener-
ally plugged. It must be plugged if it is not in use (e.g.
with hydraulic control H).
Bosch Rexroth AG, RE 64276/05.2015
18 M4-12 | Control block
Inlet plates
Closed center (J)
With primary pressure relief valve, for external pilot oil
supply
Ordering code:
J … X
▶ Specified pressure in bar required after J (3-digit)
X
M
YP LS T
Without primary pressure relief valve, with internal pilot
oil supply
Ordering code:
J Q Y
X
M
YP LS T
Without primary pressure relief valve, with internal pilot
oil supply, with LS switch-off
Ordering code:
J Q Y A
▶ LS line connected to the Y-line to the tank in de-ener-
gized condition
▶ All downstream M4-12 sections remain in load holding
X
M
YP LS T
With integrated switch-over axis, primary pressure relief
valve and internal pilot oil supply
Ordering code:
SJ 350 Y D Q080
▶ Specified pressure in bar required after SJ (3-digit)
▶ With switching position detection of the integrated
switch-over axis
▶ For external flow (port C) of 80 l/min
▶ Switch-over axis actuation with on/off valves type
FTWE2K according to data sheet 58007
▶ Further information is available on request
C
Y
P M
LS
S1 S2
T
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Inlet plates
19
Central closed center inlet plates (JZ, JK)
With primary pressure relief valve, for external pilot oil
supply
Ordering code:
JZ … X
▶ Specified pressure in bar required after JZ (3-digit)
X
M
Y
P
LS
T
Without primary pressure relief valve, with internal pilot
oil supply
Ordering code:
JZ Q Y
X
M
Y
P
LS
T
Without primary pressure relief valve, with internal pilot
oil supply
Ordering code:
JZ Z Y
▶ Primary pressure relief valve is not retrofittable
X
M
Y
P
LS
T
160-200 μm
For connection of directional valves of NG 12 and 15,
without primary pressure relief valve, with internal pilot
oil supply
Ordering code:
JK Q Y
X
M
Y
P
LS
T
160-200 μm
M4-12
M4-15
For connection of directional valves of NG 12 and 15,
without primary pressure relief valve, for external pilot
oil supply
Ordering code:
JK Q X
X
M
Y
P
LS
T
M4-12
M4-15
Bosch Rexroth AG, RE 64276/05.2015
20 M4-12 | Control block
Mono block
Mono block
Mono block open center, with primary pressure relief
valve, with internal pilot oil supply
Ordering code:
PM Z Y
D = M … J …-… W2 1 – H… H…
LM V 01
▶ Primary pressure limitation via pressure compensator
and LS-PRV
B
A
X
YP T
A
a
b
B
P T
M
A
Mono block closed center, without primary pressure
relief valve, with internal pilot oil supply
Ordering code:
JM Z Y
S Q M … J …-… W2 1 – H… H…
LM V 01
B
A
LSX YP T
A
a
b
B
P T
M
A
M
B
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Mono block
21
Mono block closed center, without primary pressure
relief valve, for external pilot oil supply
Ordering code:
JM Z X
V … M … J …-… W2 1 – H… H…
LM V 01
▶ Priority for the integrated M4-12 axis
▶ Residual flow on external consumers
B
A
S
LS
LSX YP
T
T
A
a
b
B
P T
M
A
M
B
Mono block closed center, without primary pressure
relief valve, for external pilot oil supply, for installation of
further directional valves
Ordering code:
JM Z X
V … M … J …-… W2 1 – H… H…
▶ Priority for the integrated M4-12 axis
▶ Residual flow for flanged M4-12 axes
Note
Design by technical sales.
B
A
P X Y LS T
A
a
b
B
P T
M
A
M
B
Bosch Rexroth AG, RE 64276/05.2015
22 M4-12 | Control block
Directional valves
Directional valves
Pressure compensator
Main spool in central position
X
14 2 5 3
A
T
P
T
LS
P
M
A
M
B
B
Main spool actuated
X
14 2 5 3
A
T
P
T
LS
P
M
A
M
B
B
Flow control by pressure compensator
Flow [l/min]
Pressure difference [bar]
0
20
40
60
80
100
120
50 100 150 200 250 300
In the main spool central position there is no connection
from P to the consumer ports A and B. Pump pressure
shifts the compensator spool (1) to the left against the
spring (2) in this operating condition.
When the main spool (3) (= sensing orifice) is actuated, the
LS pressure reaches the spring chamber (4) and shifts the
pressure compensator spool to the right into the control
position. The flow is also kept constant in parallel operation
of consumers with different load pressures.
The pressure compensator S is equipped with load-holding
function. This function is not free of leakage oil.
It is equipped with one disc (5) as standard. The number of
discs fitted depends on the required flow.
Type Summary Symbol
S
▶ With pressure compensator
▶ With load holding function
1)
▶ Maximum flow 130 l/min
C
▶ Without pressure compensator
▶ With load holding function
1)
▶ Maximum flow 140 l/min
Q
▶ Without pressure compensator
▶ Without load holding function
▶ Maximum flow 140 l/min
F
▶ With pressure compensator
▶ With load holding function
1)
▶ Sensitive to flows up to 20 l/min
D
2)
▶ With open center unloading valve
V
3)
▶ With priority function
1) This load holding function is not free of leakage oil
2) Only in conjunction with mono block design PM
3) Only in conjunction with mono block design JM
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Directional valves
23
LS pressure limitation
Consumer flow reduction by LS pressure limitation
20
40
60
80
100
0 50 100 150 200 250 350300
Flow [%]
Setting (example)
LS pressure [bar]
Minimum setting: 50 bar
Maximum setting: 350 bar
With LS pressure relief valve and LS threaded plug
Ordering code:
S … M Q J …–… W2 1 – H… H…
▶ Specified pressure in bar for consumer port A (3-digit)
▶ Threaded plug for consumer port B
▶ With the QMQ design, LS pressure limitation can be
retrofitted onto the directional valve.
▶ The LS pressure can be influenced externally via ports M
A
and M
B
. These ports can also be used as measuring ports.
B
A
P X Y LS T
A
a
b
B
P T
M
A
M
B
With 1 LS pressure relief valve
Ordering code:
S = M … J …–… W2 1 – H… H…
▶ Only 1 LS-PRV for the same pressure setting in A and B,
specified pressure in bar (3-digit)
▶ 1 measuring port
B
A
P X Y LS T
A
a
b
B
P T
M
A
Bosch Rexroth AG, RE 64276/05.2015
24 M4-12 | Control block
Directional valves
With LS pressure relief valve and relief plug
Ordering code:
S … M B J …-000 W2 1 – H… Q
▶ Specified pressure in bar for consumer port A (3-digit)
▶ Relief plug for consumer port B
▶ E. g. for cylinders actuated on one side
B
A
P X Y LS T
A
a
b
B
P T
M
A
M
B
Without LS pressure relief valves
Ordering code:
S Z Z Z J …–… W2 1 – H… H…
▶ LS-PRV not retrofittable
▶ Housing without measuring ports
B
A
P X Y LS T
A
a
b
B
P T
Housing for switch-over axis
Ordering code:
Z Z U Z J …–… W4 1 K Z Z
▶ Housing for switch-over axis
▶ Maximum flow of internal consumers 90 l/min
C
P X Y LS T
A
a
b
B
P T
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Directional valves
25
Housing for electro-proportional pressure limitation/
switchable directional valves
Distinction between:
1. Type KBPS
2. KBPS housing and plug
3. KBPS porting pattern and cover plate
4. Type MH2DAD and type KBPS
5. Type KKDE
6. Type MHDRD2
The exact designation of the valve must be specified in
plain text as follows.
B
A
b
a
P X Y LS T
A B
P T
M
1. Electro-proportional pressure relief valve typeKBPS
(see also data sheet 18139-04; 18139-05)
Preferred program:
S … L … J …–… H – H… H… KBPSL8BA
S … J … J …–… H – H… H… KBPSL8AA
S … R … J …–… H – H… H… KBPSR8BA
S … N … J …–… H – H… H… KBPSR8AA
Supplementary program, e.g.:
S … K … J …–… H – H… H… KBPSH8BA -033
M
M
KBPS…BA:
Decreasing characteris-
tic curve
KBPS…AA:
Increasing characteristic
curve
Decreasing
characteristic
curve
Increasing
characteristic
curve
Additional
SO no.
(Option:
24 V; 0.8 A)
50 bar KBPSC8BA KBPSC8AA
-033
100 bar KBPSF8BA KBPSF8AA
150 bar KBPSH8BA KBPSH8AA
210 bar KBPSL8BA
(2)
KBPSL8AA
(4)
250 bar KBPSN8BA KBPSN8AA
315 bar KBPSP8BA KBPSP8AA
350 bar KBPSR8BA
(1)
KBPSR8AA
(3)
420 bar KBPST8BA KBPST8AA
= Preferred program
Pressure control by electro-proportional LS pressure limitation
50
100
150
200
250
300
350
400
450
0
1
2
3
4
25 50 10075
Pressure in the main port 1 [bar]
Setpoint [%]
Bosch Rexroth AG, RE 64276/05.2015
26 M4-12 | Control block
Directional valves
2. KBPS housing and plug
S … K … J …–… H – H… H… Q
M
Plug
3. KBPS porting pattern and cover plate
S … K … J …–… H – H… H… A
Cover plate
4. Pressure cut-off valve type MH2DAD and electro-
proportional pressure relief valve type KBPS
(see also data sheet 64586; 18139--04, 18139-05)
S … K … J …–… H – H… H… MH2DAD+KBPSH8BA
S … K … J …–… H – H… H… MH2DAD+Q
M
LS
P
LS
5. 2/2-way spool valve type KKDE
(see also data sheet 18136-08)
S … K … J …–… H – H… H… KKDER8PA
▶ Normally open: KKDER8PA
▶ Normally closed: KKDER8NA
Note
The consumer pressure is not depressurized!
M
M
KKDE…PA:
Normally open
KKDE…NA:
Normally closed
6. Hydraulic pressure control MHDRD2
Q … C … J …–… H – H… H… MHDRD2
▶ Pressure distortion of the LS signal related to
the pilot pressure
▶ Application example: Slew drive in the crane
▶ Design by technical sales
B
A
b
a
P X Y LS T
A B
P T
M
a/b
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Directional valves
27
Main spool
Hydraulic cylinder as consumer Regeneration function (P, B → A) Plunger cylinder as a consumer
E
A M
B
M
A
P LS T
B
R
A M
B
M
A
P LS T
B
P
A M
B
M
A
P LS T
B
Hydraulic motors as consumers Floating position Spool with pressure function
1)
J
A M
B
M
A
P LS T
B
W
A M
B
M
A
P LS T
B
(E, J, Q) …T…
A M
B
M
A
P LS T
B
Application with defined residual opening
(A/B → T) , consumer port unloaded in
neutral position Floating position
1)
Pressure main spool in connection with
lowering brake valve
1)
Q
A M
B
M
A
P LS T
B
Y
A M
B
M
A
P LS T
B
(E) …M…
A M
B
M
A
P LS T
B
Characteristic curves symmetric main spool P → A/B
20
1
40
60
80
100
120
140
1
2
3
4
5
6
7
8
9
10
10
8.5
12 14 16 18 20 22.5
50
0
100 150 200 250
254
0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8
0.89 1.0 1.12 1.23 1.34 1.45 1.56 1.68 1.8
2
3
4
Typical flow [l/min]
Pilot pressure [bar]
Setpoint value [digits]
Current [A]
Current [A]
Nominal flow [l/min]
1 Electrohydraulic actuation, 24 V control
2 Electrohydraulic actuation, 12 V control
3 Hydraulic actuation
4 Digital on-board electronics (EPM2)
Characteristic curves floating position spool P → A/B
20
1
40
60
80
100
0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8
10
8.5
12 14 16 18 20 22.5
50
0
100 150 200 250
254
0.89 1.0 1.12 1.23 1.34 1.45 1.56 1.68 1.8
2
3
4
Typical flow [l/min]
Current [A]
Pilot pressure [bar]
Setpoint value [digits]
Current [A]
W spool
Current [A]
1) Design by technical sales
Bosch Rexroth AG, RE 64276/05.2015
28 M4-12 | Control block
Directional valves
Flow
Symmetric main spool
Spool type
Pressure
compensator
Flow in l/min
E, J, Q
S
130–130
(1)
100–100 073-073 052-052 034-034 023-023 014-014 007-007
120-120
(2)
085–085
(4)
065-065
(5)
045-045
(6)
030-030
(7)
020-020
(8)
012-012
(9)
006-006
(10)
100-100
(3)
070-070 057-057 038-038 026-026 017-017 010-010 005-005
C 140-140 115-155 090-090 063-063 042-042 028-028 017-017 008-008
(1)
…
(10)
Note on spool characteristic curve page 27.
Asymmetric main spool
Spool type
Pressure
compensator
Flow in l/min
E, J, Q
S
100-073 100-052 052-034 034-023 023-014
085-065 085-045 045-030 030-020 020-012
070-057 070-038 038-026 026-017 017-010
C 115-090 115-063 063-042 042-028 028-017
Floating position, regeneration and plunger spool
1)
Spool type
Pressure
compensator
Flow in l/min (others on request)
W
S
030-030 045-045 065-040
Y 030-030 065-065 065-045 065-085 085–100
R 130-101 085-030 065-025 130-140
P 185-000
Note
Design by technical sales.
Example:
▶ Spool type J
▶ Pressure compensator S
▶ Setpoint value: q
consumers
= 90 l/min
Solution:
▶ 85-liter spool + 2 discs = 100 l/min
▶ Set 90 liters via stroke limiter.
Spool type Pressure
compensator
Flow in l/min Number of discs
E, J, Q S
100–100
With 2 discs (pressure compensator Δp = 8.5 to 11.5 bar)
085-085
With 1 disc (pressure compensator Δp = 6 to 9.5 bar)
070-070
Without disc (pressure compensator Δp = 4 to 7 bar)
Note
Place directional valves with maximum flow as close as
possible to the inlet plate.
1) Flow parameter corresponds to 1 disc
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Type of actuation
29
Type of actuation
Purely mechanical (not encapsulated) with tongue Purely mechanical (not encapsulated) with hand lever and detent
AZ
A B
P T
B1N
A B
P T
▶ Centering in central position by means of springs in case
of non-actuation.
▶ Centering in central position by means of springs in case
of non-actuation.
▶ For variants, see page30.
Mechanical (encapsulated)
Hydraulic
M
A B
P T
X
Y
A B
1)
2)
P T
H
A B
P T
b a
▶ Centering in central position by means of springs in case
of non-actuation.
▶ All hand lever position options are possible, cf. also ordering codes
on page 31.
1) Revolving hand lever
2) Non-revolving hand lever
▶ Centering in central position by means of springs in case
of non-actuation.
▶ Recommended hydraulic pilot controls:
Type TH6 according to data sheet 64555
Electrohydraulically switchable Electrohydraulically switchable with damping nozzle on both sides
W4
A B
P T
X
Y
W5
A B
P T
X
Y
a
b
▶ On/off valve type FTWE2K according to data sheet 58007 ▶ On/off valve type FTWE2K according to data sheet 58007
Electrohydraulically switchable with measuring ports on both sides Electrohydraulically switchable with damping nozzle, with
measuring ports on both sides
W6
A B
P T
X
Y
M
a
M
b
W7
A B
P T
X
Y
a
b
M
a
M
b
▶ On/off valve type FTWE2K according to data sheet 58007 ▶ On/off valve type FTWE2K according to data sheet 58007
Electrohydraulically proportional Electrohydraulically proportional with measuring ports on both
sides
W2
A B
P T
X
Y
a
b
W8
A B
P T
X
Y
M
a
M
b
a
b
▶ Proportional pressure reducing valve type FTWE2K according
to data sheet 58032
▶ Proportional pressure reducing valve type FTWE2K according
to data sheet 58032
Bosch Rexroth AG, RE 64276/05.2015
30 M4-12 | Control block
Type of actuation
Electrohydraulically proportional with damping nozzle and check valve Electrohydraulically switchable with nozzle and check valve for
hydraulic superposition
G2
A B
P T
X
Y
a
b
a
b
G4
A B
P T
X
Y
a
b
a
b
▶ Proportional pressure reducing valve type FTWE2K according
to data sheet 58032
▶ On/off valve type FTWE2K according to data sheet 58007
Electronic pilot module Electronic pilot module with position sensor
CBA
A B
P T
X
Y
a
b
CPA
A B
P T
X
Y
a
b
▶ Digital interface, standard, refer to instruction manual 64815-B ▶ Digital interface, with position sensor, refer to instruction manual
64815-B
Variant overview for purely mechanical actuation (not encapsulated)
spring-centered + tongue spring-centered + tongue with
lever
A Z A N
detent + tongue detent + tongue with lever Lever position
B1 Z B1 N
A
P T
B
0
0
2
2
1
1
B1 = Detent in 1
B2 Z B2 N B2 = Detent in 2
B4 Z B4 N B4 = Detent in 1, 2
Actuating force:
Tongue < 250 N (spool axis)
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Type of actuation
31
Variant overview for mechanical actuation with hand lever (encapsulated)
Standard cover with hand lever Mounting piece with lever (example: Lever
screw fitting in position 2)
Lever screw fitting on the
mounting piece
0° = L, O
60° = K, N
-60° = M, P
20°
±1°
20°
±1°
23°
±1°
23°
±1°
1
2
1 Actuation angle for revolving lever
2 Actuation angle for non-revolving lever
0° = F2, H2
30° = B12, G12
-30° = D12, J12
60° = B2, G2
-60° = D2, J2
1
2
3
Ordering code
Lever
Standard cover Clamping piece with lever Clamping piece without lever
Revolving Not revolving Revolving Not revolving Revolving Not revolving
Upward, 60° K N B
2
3
G
2
3
T Q
Upward, 30° B1
2
3
G1
2
3
T1 Q1
Straight, 0° L O F
1
2
3
H
1
2
3
U S
Downward, -30° D1
1
2
J1
1
2
V1 C1
Downward, -60° M P D
1
2
J
1
2
V C
Without lever R X
Actuating force (on the hand lever)
▶ Mechanical < 20 N
▶ Mechanical superposition
(with parallel hydraulic actuation) < 70 N
▶ Mechanical superposition
(with parallel electrohydraulic actuation) < 50 N
= Preferred program
Notes
▶ Revolving hand lever:
Mechanical actuation can override the electrohydraulic
actuation. The hand lever is directly connected to the
main spool and follows the spool movement in electro-
hydraulic control.
▶ Non-revolving hand lever:
The hand lever is connected to the main spool via a
coupling. If the main spool is in the central position,
the hand lever can be snapped into place. With elec-
trohydraulic control, it does not follow the spool move-
ment in this way.
Bosch Rexroth AG, RE 64276/05.2015
32 M4-12 | Control block
Secondary valves
Secondary valves
Shock/feed valves, non-adjustable
Ordering code:
S … M … J …–… H – Q H…
▶ Non-adjustable shock/feed valve
▶ Specified pressure in bar required after H (3-digit), see
table below for possible values
▶ Example: Q H150
Q: Threaded plug for consumer port A
H150: Shock/feed valve, fixed setting to 150 bar for
consumer port B
Note
Only suitable for reduction of pressure peaks – not to
be used as a pressure relief valve!
B
A
b
a
P X Y LS T
A B
P T
M
A
M
B
Possible pressure settings for shock valves with feed function
Pressure setting in bar for consumer port A and B
H025 = 25 bar H125 = 125 bar H210 = 210 bar H320 = 320 bar
H035 = 35 bar H140 = 140 bar H230 = 230 bar H350 = 350 bar
H050 = 50 bar H150 = 150 bar H240 = 240 bar H380 = 380 bar
H063 = 63 bar H160 = 160 bar H250 = 250 bar H405 = 405 bar
H080 = 80 bar H175 = 175 bar H280 = 280 bar H420 = 420 bar
H100 = 100 bar H190 = 190 bar H300 = 300 bar
Note
Shock valves have a fixed setting!
Shock/feed valves, adjustable
Ordering code:
S … M … J …–… H – Q A…
▶ Adjustable shock/feed valve
▶ Specified pressure in bar required after A (3-digit)
▶ Example: Q A200
Q: Threaded plug for consumer port A
A200: Shock/feed valve, set to 200 bar for consumer port B
Note
Only suitable for reduction of pressure peaks – not to
be used as a pressure relief valve!
Adjustable pressure stages in bar for consumer port A and B
10 – 70 201 – 270
71 – 120 271 – 320
121 – 200 321 – 380
B
A
b
a
P X Y LS T
A B
P T
M
A
M
B
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Secondary valves
33
Without secondary valves
Ordering code:
S … M … J …–… H – Z Z
▶ Secondary valves are not retrofittable
▶ Consumer port G 3/4
Ordering code:
S … M … J …–… H – X X
▶ Secondary valves are not retrofittable
▶ Consumer port G 1/2
Note
Secondary pressure limitation must be provided by the
customer if necessary.
B
A
b
a
P X Y LS T
A B
P T
M
A
M
B
Without secondary valves, secondary valves, with flange
surface
Ordering code:
S … M … J …–… H – F F … …
▶ Secondary valves are not retrofittable
▶ Flange-mountable valves specified in the plain text
Notes
▶ Secondary pressure limitation must be provided by the
customer if necessary.
▶ Design by technical sales.
B
A
b
a
P X Y LS T
A B
P T
M
A
M
B
Bosch Rexroth AG, RE 64276/05.2015
34 M4-12 | Control block
Available housing variants
Available housing variants
With secondary
valve option
(retrofittable)
Without
secondary valve
(not retrofittable)
Without
secondary valve
(not retrofittable)
Flange surface
without second-
ary valve option
(not retrofittable)
Q, A…, H… XX ZZ FF
A, B = G / G / G /
Standard
Without LS pressure relief valve
(LS-PRV not retrofittable)
ZZZ
Without LS pressure relief valves for switch-over
axis (LS-PRV not retrofittable)
ZUZ
With only 1 LS pressure relief valve for same
pressure setting in A and B
= M…
With 2 LS pressure relief valves,
(specified pressure in bar, 3-digit)
…M…
With LS pressure relief valves
(specified pressure in bar, 3-digit)
Housing for electro-proportional or switchable
pressure limitation
…K…
Purely mechanical
Without LS pressure relief valve
(LS-PRV not retrofittable)
ZZZ
With only 1 LS pressure relief valve for same
pressure setting in A and B
= M…
With 2 LS pressure relief valves,
(specified pressure in bar, 3-digit)
…M…
With LS pressure relief valves
(specified pressure in bar, 3-digit)
Housing for electro-proportional or switchable
pressure limitation
…K…
Without LS pressure relief valves
(LS-PRV not retrofittable)
Housing for electro-proportional or switchable
pressure limitation
ZKZ
Housing for hydraulic pressure control, with LS
and PST outlet
…C…
= Available
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
End plates
35
End plates
With LS unloading
Ordering code:
LA
TLS
End plate LA with additional P and T port
Ordering code:
LAPT
TP
LS
With LS port
Ordering code:
LZ
▶ LS unloading must be provided externally
LS
Z
End plate LZ with additional P and T port
Ordering code:
LZPT
▶ LS unloading must be provided externally
TP LS
Z
End plate LA with two installation bores for FTDRE4K,
FTWE4K
1)
Ordering code:
LA W4 W2
▶ For 30 bar pilot pressure
▶ See also data sheet 58038 and/or 58008
XP Y C1 C2
LS
T
End plate LA with two installation bores for pressure
reducing valve, KKDER…
1)
Ordering code:
LA … KKDER… … KKDER… Q Q
▶ Max. 40 l/min per working port
▶ See also data sheet 18136-05
XP Y
Y
C2C1 C4C3 C6C5
LS T
1) Please consult out technical sales department
Bosch Rexroth AG, RE 64276/05.2015
36 M4-12 | Control block
End plates
Diversion plate for use with central inlet plate
Ordering code:
LU
LS
Diversion plate LU with two installation bores for
FTDRE4K, FTWE4K
1)
Ordering code:
LU Q W4
▶ For 30 bar pilot pressure
▶ See also data sheet 58038 and/or 58008
XP Y C1 C2
LS
T
Adapter plate for SP-08 directional valves
Ordering code:
L8 210
▶ With integrated 2-with pressure compensator
▶ With LS pressure relief valve, set to 210 bar
▶ Ordering code for flanged SP-08 directional valves in
accordance with data sheet 64139
▶ A maximum of 7 directional valves M4-12 is possible
XP Y LS T
SP-08
M4-12
Adapter plate for Bosch Rexroth Oil Control ED valves
Ordering code:
TI
▶ Ordering code for flanged ED directional valves in accor-
dance with data sheet 18301-29
XP
P1
Y LS
LS
TT
T
ED...
M4-12
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
37
Dimensions [mm]
Dimensions
Line connections
Ports
P Pump LS Load sensing signal
A, B Consumer LS
Z
LS supply
a, b Pilot oil M Measuring port, pump
T Tank M
A
, M
B
Measuring port, LS pressure
X Pilot oil supply M
b
, M
b
Measuring port, pilot pressure
Y Pilot oil return C External consumers
P T A, B a, b LS X, Y M, M
A
, M
B
M
a
, M
b
C, C1…C6
Inlet P G 3/4 G 1 – – G 1/4 G 1/4 G 1/4 – –
J G 3/4 G 3/4 – – G 1/4 G 1/4 G 1/4 – –
JZ G 1 G 1 – – G 1/4 G 1/4 G 1/4 – –
JK G 1 1/4 G 1 1/4 – – G 1/4 G 1/4 G 1/4 – –
Mono block PM, JM G 3/4 G 3/4 G 1/2 G 1/4 G 1/4 G 1/4 G 1/4 – –
Directional
valve
With secondary
valves
– – G 1/2 G 1/4 – – G 1/4 G 1/8 –
Without second-
ary valve (ZZ)
– – G 3/4 G 1/4 – – G 1/4 G 1/8 G 3/4
Without second-
ary valve (XX)
– – G 1/2 G 1/4 – – G 1/4 G 1/8 –
End plate LZ – – – – G 1/4 –
LAPT, LZPT G 3/4 G 3/4 – – G 1/4 – – – –
LA… … G 1/2 G 3/8 – – G 1/4 G 1/4 – – G 1/4
LU… … G 1/2 G 3/8 – – G 1/4 G 1/4 – – G 1/4
Mounting bolts M10 according to ENISO4762 or
EN ISO 4014:
Tensile strength class 8.8 10.9
Tightening torque 41
±2
Nm 60
±3
Nm
Ports according to ISO 1179-1
Bosch Rexroth AG, RE 64276/05.2015
38 M4-12 | Control block
Dimensions
Dimensions [mm]
Inlet plates
Lateral inlet plate J…Y
T
M
LS
P
Y
X
44.5
40
54
27
13
38.5
65
89
125
48
85
28
50
4
114 4
48
25
103
12
M10;15 tief
Central inlet plate JZ
53
65
27
37
76
99
25
43
93
15
30
65
80
34.5
112.5
25
T
P
LS
Y
X
MP
137
48
114
M10;15 tief
Lateral inlet plate P…Y
35
45
91.5
132
51.5
25
50
45
91.5
43
48
25
103
65
92
13.5
114
26
T
P
Y
M
X
LS
4
12
48
M10;15 tief
Central inlet plate JK
60
46
105
25
47
14
64
12
125
15
T
P
Y
X
153
130
ca. 34 40 ca. 48
27
12
M10;15/19 tief
3578
LS
70
40
90
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
39
Dimensions [mm]
Mono block
Standard mono block closed center JM as input combined with 1 axis; further directional valves are flange-mountable
29
15
93
47
27
68
16.5
37.5
103
52
125
18
44.5
78.5
72
50
94
15.5
17.5
168
37
88
94
20.5
107.5
36.5
89
63
Y
LS
T
P
Bosch Rexroth AG, RE 64276/05.2015
40 M4-12 | Control block
Dimensions
Dimensions [mm]
Standard mono block open center PM
33
18
15
98.5
114.5
19
119
43
95
125
72
124
87.5
72
78.5
40
67
98
41
50
94
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
41
Dimensions [mm]
Directional valves
Housing with secondary valve bore,
consumer port G1/2
Ordering code:
… A… A… …
… H… H… …
… Q Q …
Housing without secondary valve bore,
consumer port G3/4 or G1/2
Ordering code:
… Z Z …
… X X …
Housing for switch-over axis, consumer
port G3/4
Ordering code:
… ZUZ … Z Z …
125
49
83.5
18
28
46
B
A
33
13
19
30
M
A
M
B
125
98
46
23
B
A
46
33
13
19
30
M
A
M
B
47
C
23
46
34
30
125
M
A
Actuation
Purely mechanical actuation, with tongue
Ordering code:
… A Z …
A side B side
41.5
52
8
45.5
Ø8
Purely mechanical actuation with detent, tongue and lever
Ordering code:
… B1 N …
A side B side
128
280
78.5
Bosch Rexroth AG, RE 64276/05.2015
42 M4-12 | Control block
Dimensions
Dimensions [mm]
Mechanical/hydraulic actuation with standard cover
Ordering code:
… M B2 …
… H B2 …
A side B side
209
64
b
a
157
56.5
107
21.7 28.9
Electronic pilot module EPM2 with hand lever (encapsulated)
Ordering code:
… C . A K …
A side B side
152
169
86135
230
46
60°
Electrohydraulic actuation
Ordering code:
… W. – …
A side B side
108
64
M
b
M
a
56.5
107
26.9 23.9
"b"
"a"
Electrohydraulic actuation with check valve
Ordering code:
… G. – …
A side B side
108
64
M
b
M
a
147
"b"
"a"
56.5
107
26.9 23.9
6121
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
43
Dimensions [mm]
End plates
End plate LA
103
25
M10
125
114.5
67
46.5
15
63
114
15
15
15
30
End plate LAPT
103
25
M10
125
114.5
67
46.5
15
63
114
35
15
15
50
83.5
87
P
T
End plate LZ
103
25
M10
125
114.5
67
46.5
15
63
114
83.5
15
15
30
LS
Z
27
17
End plate LZPT
103
25
M10
125
114.5
67
46.5
15
63
114
35
15
15
50
83.5
87
P
T
LS
Z
27
37
Bosch Rexroth AG, RE 64276/05.2015
44 M4-12 | Control block
Dimensions
Dimensions [mm]
Diversion plate LU Diversion plate LU with two installation bores
103
25
M10
20
114
35
83.5
12.5
15
46.5
114.5
125
67
M10
20
45.5
123.5
T
18
50
17
8
33
64
77
96
P
C2
C1
Y
67
87.5
135
145
83.5
17.5
63
90
114
24
35
33
93.5
15
28
47
106
16
End plate LA with two installation bores
M10
20
45.5
123.5
50
33
64
75
88
67
87.5
135
150
83.5
17.5
64
84
114
35
33
93.5
15
105
77
47
27
P1
C2
C1
Y1
T
LS
Z
18
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
45
Dimensions [mm]
Order examples
Closed center control block with lateral inlet plate (as per order example on page 13)
38.5
18
LS
P
Y
X
86.5
63
"b"
"a"
429
230
54
98
B2
A2
C
47
T
M
B1
A1
46
48
114
304646
46
50
114 4
239
56.5
114.5
83.5
M
A
M
B
M
4
4
13
65
89
125
135
86
27
40
44.5
49
28
23
23
28
85
46.5
67
15
103
25
12
15
33
19
103
72
30
25
34
12
7
8
11
10
5
2
6
8
4
9
1
3
39
108
152
83.5
1 Name plate
2 Inlet plate J…Y
3 Directional valves
4 End plate LA
5 Control cover W (side A) for
electrohydraulic actuation
6 Control cover CBA (side A) with
electronic pilot module (EPM2)
7 Control cover, standard (side B)
8 Control cover K (side B)
9 Stroke limiter
10 Secondary valves
11 Tie rod
12 Fastening thread 4xM10; 15 deep
Bosch Rexroth AG, RE 64276/05.2015
46 M4-12 | Control block
Dimensions
Dimensions [mm]
Open center control block with lateral inlet plate (as per order example on page 14)
25
M
X
LS
"b"
"a"
86.5
50
51.5
63
43
48
50
35
83.5
30
33
65
46
46
46 50
39
114 34
257
"a"
"b"
Y
T
LS
Z
AB ABAB
A3
B3
B2
A2
B1
A1
T
P
Ø8
P
20
103
12
1315
19
25
30
26
64
91.5
7
45
13
27
86.5
23
4
92
114
13.5
25
1
4
7
6
5
12
13
10
8
11
14
2
39
31.5
46
41.5
46.5
67
114.5
87
15
103
3
83.5
79
49
98
52
132
317
91.5
45
35
125 86
108
56.5
9
1 Name plate
2 Inlet plate P…Y
3 Directional valves
4 End plate LZPT
5 Control cover A (side A) for
mechanical actuation
6 Control cover H (side A) for
hydraulic actuation
7 Control cover W (side A) for
electrohydraulic actuation
8 Purely mechanical actuation with
tongue (side B)
9 Control cover, standard (side B)
10 Control cover X (side B)
11 Stroke limiter
12 Secondary valves
13 Tie rod
14 Fastening thread 4xM10; 15 deep
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
47
Dimensions [mm]
Closed center control block with central inlet plate (as per order example on page 15)
83.5
15
114.5
67
46.5
125
63
86.5
"b"
"a"
39
137
8.5
49
125
83.5
18
28
T
P
LS
B1
A2
B2
27
53
65
125
90.5
67.5
28.5
A1
6
270
Y
X
MP
AB
80
65
46
35
114
93
43
25
7
4
30
67
83.5
52.5152
86
125
170
230
15
114.597
46.5
103
137
20
8.5
34.5
112.5
25
25
15
10
4
3
8
7
1
2
6
5
3
11
9
12
25
103
108
135
60°
114
15
46
30
1 Name plate
2 Central inlet plate JZ
3 Directional valves
4 End plate LA
5 Diversion plate LU
6 Control cover W (side A) for
electrohydraulic actuation
7 Control cover CBA (side A) with
electronic pilot module (EPM2)
8 Control cover K (side B)
9 Stroke limiter
10 Electro-proportional pressure relief
valve type KBPS
11 Tie rod
12 Fastening thread 4xM10; 15 deep
Bosch Rexroth AG, RE 64276/05.2015
48 M4-12 | Control block
Dimensions
Closed center control block with combination inlet plate (as per order example on page 16)
12
10
9
20
25
1523
22
28
133
135
440
157.5
236
25 78
46
98
114
18
48.5
85
93.5
40
113
141
20
48
106
45
30
40
63
75
25.5
35
118
44
76
90 46 46 305150
40
47
130
344
125 64
63
T
P
A1
B1
A2
B2
A3
B3
MP
X
LS
1
2
3
4
5
6
7
8
11
12
1 Name plate
2 Central inlet plate JK
3 Directional valve M4-15
4 Directional valve M4-12
5 End plate LA
6 Diversion plate LU
7 Control cover CBA (side A) with
electronic pilot module (EPM2)
8 Control cover K (side B)
9 Control cover, standard (side B)
10 Stroke limiter
11 Tie rod
12 Fastening thread 4xM10; 15 deep
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Dimensions
49
Mono block open center
95
43
33
125
98.5
124
72
4
5
1
2
3
5
P
18
15
Y
T
50
94
72
78.5
A
B
41
98
6
19
11
40
67
144.5
105.4
67
119
43
87.5
90.5
294.5
T
1 Name plate
2 Mono block PM
3 Control cover W (side A)
for electrohydraulic
actuation
4 Control cover, standard
(side B)
5 Stroke limiter
6 Fastening thread
3xM10; 20 deep
Bosch Rexroth AG, RE 64276/05.2015
50 M4-12 | Control block
On-board electronics: Electronic pilot module (EPM)
On-board electronics: Electronic pilot module (EPM)
M4-12 with EPM2
Function
The electronic pilot module provides the flow control on
control block M4-12 via an analog or digital electrical signal.
An analog (voltage or PWM signal) or digital (CAN bus) input
signal is converted into a pilot pressure by the pilot module
by means of two electrohydraulic pressure reducing valves.
With an analog input signal, each pilot module is connected
individually to the control electronics of the machine.
With a CAN bus control, a looping of the electrical connec-
tion via the second plug connection to the next pilot mod-
ule is possible (daisy-chain wiring). The entire control block
is then connected via the 4-pin connector of the first pilot
module to the machine control.
The electrical connection is provided via a Bosch compact
1 type 4-pin connector.
It is possible to connect further CAN bus devices to the out-
put of the last pilot module (see also RE 64815-B).
Features
Time functions (ramp functions), characteristic curve form
and increase can be configured or changed directly via the
CAN bus during the working cycle. Various diagnostic func-
tions monitor the correct functioning of the pilot module.
The following are monitored in the basic version:
▶ The correct receipt of a valid setpoint signal
▶ Stability of the connection to the transmitter
▶ Compliance with the defined limits of the supply voltage
▶ Function of the pilot valves (short circuit, cable break)
Malfunctions are displayed externally via a visible light diode
(LED) displayed in the form of an error code (flashing code).
With the analog module, a relay output is available for use
as an error indicator.
The CAN bus version transfers the error code in the pilot
module status telegram to the open loop control, which can
evaluate it:
▶ Low wiring costs with CAN wiring as a result of the
(daisy-chain) assembly
▶ Clocked output stages with superimposed dither
▶ Processor-independent watchdog
▶ Separate selectable time ramps for each valve output A
and B, opening and closing (CAN only, fixed setting on
the analog module)
▶ Separate changeable characteristic curves from linear to
progressive sequence for A and B (CAN only, fixed set-
ting on the analog module)
▶ Linear characteristic curve reduction in operation and
consequent linear reduction of total quantity (CAN only,
fixed setting on the analog module)
▶ Selectable time ramps for the switch-off in the event of
an error (analog module only)
▶ Selectable monitoring limits of the operating voltage can
be configured via CAN bus
▶ Protection class according to EN 60529 IP 69 K (with
plugged Bosch compact connectors only)
▶ Extensive parameterizability according to customer
requirements from the factory by Bosch Rexroth
Options
▶ Travel sensor
▶ With measuring port
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
On-board electronics: Electronic pilot module (EPM)
51
Parameterization specifications
For the parameterization specifications form, see project
planning help 64815-02.
It is used for setting the electronic pilot module supplied
according to the customer's requirements.
CAN connector pin assignment
Connection via Bosch compact connector, coding 1.
When using the CAN control, a connection to the next
module or to another CAN participant is possible via the
second Bosch compact connector, coding 2.
Pin assignment on the Bosch compact connector
CAN Analog
Note
Connection cables and connectors are not included and must
be ordered separately (see “Accessories” on page 52).
Rexroth guarantees the correct function of the device, as
described in instruction manual 64815-B. Rexroth
assumes no liability for the safe operation of the machine
or system of which this device forms part.
All control blocks with EPM2 are supplied with mounted
daisy-chain wiring and terminal resistor connector. Terminal
resistor is mounted in the last section of the block.
Recommended cable for connection to the machine elec-
tronics: Material number: R917c02724
Daisy-chain wiring
1 5
2 3 4
1 Inlet plate
2 Open connector for connection to the machine electronics
3 Daisy-chain
4 Connector with terminal resistor
5 End plate
Bosch Rexroth AG, RE 64276/05.2015
52 M4-12 | Control block
Accessories
Accessories
Cables and connectors for EPM
Material number Type Description Length
Daisy-chain cable
R917c02581
R917c02599
R917c02628
Cable
Cable
Cable
For connection of two pilot modules (standard)
For connection of two pilot modules
For connection of two pilot modules via central inlet
190 mm
240 mm
370 mm
Special cable
R9017c05332 Cable With two connectors, coding 1 (black) 90°
R917c05333 Cable With two connectors, coding 2 (gray) 90°
Connection cable
R917c02724
R917c04484
Cable
Cable
With one connector, coding 1 (black)
With one connector, coding 2 (gray)
4000 mm
4000 mm
Connector and connector sets
R917c05459
R917c02627
Connector
Connector
Coding 1 (black), dummy connector
Coding 2 (gray), dummy connector
R917c05458 Connector Coding 1 (black), dummy connector with integrated terminal resistor
R900785606
Connector
set
Bosch compact, coding 1 (black)
R900785607
Connector
set
Bosch compact, coding 2 (gray)
RE 64276/05.2015, Bosch Rexroth AG
Control block | M4-12
Accessories
53
Plug-in connectors
Connector type
Supply voltage Junior Timer
2-pin (AMP)
DT04-2P (Deutsch)
24 V 1 8
12 V 3 9
Recommended plug-in connector for Junior Timer, 2-pin
(AMP) connector type
Plug-in connector for FTDRE… and FTWE… type of protec-
tion IP 69K
Material number: R900313533
for conductor cross section from 0.5 to 1 mm² and for an
insulation diameter of the individual seals from 1.2 to 2.1mm
Material number: R901022127
for conductor cross section from 0.5 to 1 mm² and for an
insulation diameter of the individual seals from 2.2 to 3mm
Recommended plug-in connector for Junior Timer, 2-pin (AMP)
54
Bosch Rexroth AG, RE 64276/05.2015
Bosch Rexroth AG
Mobile Applications
Zum Eisengießer
97816 Lohr am Main, Germany
Phone +49 9352 18-0
info.ma@boschrexroth.de
www.boschrexroth.com
© This document, as well as the data, specifications and other information set
forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent. The data specified
above only serve to describe the product. No statements concerning a certain
condition or suitability for a certain application can be derived from this
information. The information provided does not release the user from con-
ducting their own evaluations and tests. It must be remembered that our
products are subject to a natural process of wear and aging.
M4-12 | Control block
M4 configurator
M4 configurator
The M4 configurator on www.boschrexroth.com/m4 will
help you to configure your individual control block easily
and conveniently.
All data that are necessary data for the project are
requested during menu navigation.
Simply specify your requirements: From the pump type and
the number and configuration of the valves to the end plate
you require. You will immediately receive an offer drawing,
the hydraulic circuit diagram, a 3D model and the detailed
technical specification.
The M4 configurator is linked to the Bosch Rexroth eShop.
The M4 order of the configured control block can be placed
immediately.
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Ordering information for electronic pilot module EPM2 64815-02 Project planning help
System documentation from the machine manufacturer Instruction manual