HMF/A/V/R-02.
Hydraulic motors for
closed and open loop operation
2
Design characteristics
>> high pressure axial piston motor in swash plate design for closed and open loop systems
>> optimised start-up and low-speed characteristics
>> optionally with purge valves for circuit and case flushing
>> HP valves possible
>> through-shaft with bare shaft end or coupling flange
>> SAE High pressure ports, radial or axial
>> SAE mounting flange with ANSI or SAE spline shaft
>> plug-in version optional
>> speed sensor optional
Product advantages
>> smooth low-speed operation
>> high starting torque
>> lower emissions through speed reduction
>> compact design
>> high power density
>> high reliability
>> long service life
>> highly dynamic response characteristics
>> simplified drive line
y
1
control
optional swashing to 0 cm³ /rev
y
2
swash plate
hydrostatic bearing
y
3
piston-slipper assembly
21° swash angle
y
4
housing
monoshell for high rigidity
y
5
valve plate housing
highly integrated
y
6
control piston
integrated, hydraulically cap-
tured
y
7
rotating group
precise torque transmission
even at low speeds
y
8
optional Trough-Drive
available with two shaft ends
for torque transmission
LinDrive = Precision x Dynamics x Reliability = Benefit
n
3
Data Sheets Linde Hydraulics.
Content HMF / A / V / R-02.
General technical data 4
Transmission concept 6
Operating parameters
>> Life time recommendations 7
>> Filtering 7
>> Pressure fluids 8
Torque transfer 9
>> Mounting flange 10
>> Output shaft 12
>> PTO 13
The closed loop 14
The open loop 15
Functions
>> Purge and case flushing 16
>> Servo pressure supply 17
>> Crossline (secondary) protection 18
>> Signal selection for pressure regulator 19
>> Counterbalance valve 20
>> Speed sensor 21
Motor types 22
>> HMV-02 24
>> HMV D-02 double motor 28
>> HMV T-02 tandem motor 29
>> Motor equipment. COR-block 30
>> HMR-02 31
>> HMF-02 34
>> HMF-02 P 36
>> HMA-02 37
Dimensions
>> HMV-02 38
>> HMR-02 40
>> HMF-02 42
>> Connections 43
Modular system features 43
Contact 44
The data on which this brochure is based correspond to the current state of development. We reserve the right to make
changes in case of technical progress. The dimensions and technical data of the individual installation drawings are prevailing.
The features listed in this data sheet are not available in all combinations and nominal sizes. Our sales engineers will be happy
to provide advice regarding the configuration of your hydraulic system and on product selection.
Product range
Find the right products for your application.
Product Application Linde product name
Pump Self-regulating pump open loop operation HPR-02
Variable pump closed loop operation HPV-02
Motor Variable motor closed and open loop operation HMV-02
Regulating motor closed and open loop operation HMR-02
Fixed motor closed and open loop operation HMF-02
open loop operation HMF-02 P
closed and open loop operation HMA-02
Valve Technology LSC manifold plate open loop operation VT modular
Pilot valve block open loop operation VD7S
Electronics Electronic control closed and open loop operation LINC
Peripherial equipment closed and open loop operation CEP
Software diagnosis and configuration LinDiag®
The table shows the complete range of the motors.
4
General technical data.
Standard Linde-name plate
Overview of technical data
Each Linde Hydraulics unit features a name plate showing the type and the serial number. For a single order via ‘open variant’ a
customer-specific number or free text with up to 15 characters can be stamped on the name plate.
Rated size 28 35 50/55 75 105
Displacement
HMV-02 can be set to 0 cm³/rev
displacement
Maximum V
max
HMV 55-02, HMR 55-02: 54,8
HMF 50-02: 51,3
cm
3
/rev 28.6 35.6 51.3/54.8 75.9 105.0
Minimum V
min
only for variable and regulating motors
cm
3
/rev - - 18.3 25.3 35.0
Speed
Max. continuous speed
(100 % duty cycle) at maximum displacement
min
-1
4500 4500 4100 3800 3500
Max. speed (intermittent)
at maximum displacement,
higher speed on request
min
-1
4800 4800 4400 4100 3800
Max. continuous speed
(100 % duty cycle) at min. displacement
min
-1
- - 4700 4400 4100
Max. speed (intermittent)
at minimum displacement,
higher speed on request
min
-1
- - 5300 5000 4700
Pressure
Nominal pressure
other values on request
bar 420
Peak pressure bar 500
Continuous pressure (∆p) bar 250
Permissible housing pressure
(absolute)
bar 2.5
Torque (theoretical)
Continuous output torque
at continuous pressure
Nm 114 142 199/218 302 418
Max. output torque
at maximum operating pressure
Nm 191 238 334/366 508 702
Power (theoretical)
Continuous power
at maximum continuous speed, maximum
displacement and continuous pressure
kW 54 67 85/94 120 153
Maximum Power
at max. continuous speed, max. displacement
and max. operating pressure
kW 90 112 143/157 202 257
Permissible shaft loads
Axial input /output force N 2000
Radial N on request
Perm. housing temp.
Perm. housing temperature
with minimum perm. viscosity > 10 cSt
°C 90
Weights
Fixed displacement motor
with 2-hole mounting flange
kg 16 16 19 26 33
Variable and regulating motor
with 2- or 4-hole mounting flange
kg - - 28 32 42
Max. moment of inertia kgm
2
x 10
-2
0.25 0.25 0.49 0.79 1.44
Type HMV 105-02 Series 02 variable motor with the rated size of 105
2581
the last 4 figures of the Bill of Material
2340002581
Serial-No. H2X
234 Type number of HMV 105-02
T Letter indicating year of production
12345 Serial number
Part No. 12345678 Free text field for up to 15 characters
5
General technical data.
The table shows the complete range of the motors.
Overview of technical data
Rated size 135 165 210 280 135D
Displacement
HMV-02 can be set to
0 cm³/rev displacement
Maximum V
max
cm
3
/rev 135.6 165 210 280 270
Minimum V
min
only for variable and regulating motors
cm
3
/rev 45.2 55.2 70 93 67
Speed
Max. continuous speed
(100 % duty cycle) at maximum displacement
min
-1
3200 3100 2700 2400 3200
Max. speed (intermittent)
at maximum displacement,
higher speed on request
min
-1
3500 3400 3000 2700 3500
Max. continuous speed
(100 % duty cycle) at minimum displacement
min
-1
3700 3500 3200 2900 3700
Max. speed (intermittent)
at minimum displacement,
higher speed on request
min
-1
4000 3900 3500 3200 4000
Pressure
Nominal pressure
other values in request
bar 420
Peak pressure bar 500
Continuous pressure (∆p) bar 250
Permissible housing pressure
(absolute)
bar 2.5
Torque (theoretical)
Continuous output torque
at continuous pressure
Nm 540 657 836 1115 1075
Max. output torque
at maximum operating pressure
Nm 907 1104 1404 1872 1803
Power (theoretical)
Continuous power
at maximum continuous speed, maximum
displacement and continuous pressure
kW 181 213 236 280 360
Maximum power
at max. continuous speed, max. displacement
and max. operating pressure
kW 304 358 397 470 605
Permissible shaft loads
Axial input / output force N 2000
Radial N on request
Perm. housing tempe-
rature
Perm. housing temperature
with minimum perm. viscosity > 10 cSt
°C 90
Weights
Fixed displacement motor
with 2-hole mounting flange
kg 39 75 100 - -
Variable and regulating motor
with 2- or 4-hole mounting flange
kg 56 76 101 146 149
Max. moment of inertia kgm
2
x 10
-2
2.15 3.06 4.68 9.36 2.15
Diesel
Pumpe
Motor
Getriebe
Differential
Pla
netengetriebe
Rad
Drehzahl
2
1,8
1,6
1,4
1,2
1
0,8
0,6
0,4
0,2
0
6
Transmission concept.
Equipment manufacturers profit by the Linde Hydraulics transmission concept. Due to the direct conversion of the prime mover
speed into wheel speed it is possible to reduce the number of drive line components and the energy losses in the operating cycle.
Speed steps of transmission concepts
n
Low speed direct
n
Low speed integration
n
Low speed
n
High speed
Starting torque
Torque at 350 bar and 2 rpm
Literature: “...only possible with bent axis motors”
Motor speed n
ηhm, min
Speed ratio
Engine
Wheel
Pump
Motor
Gearbox
Differential
Planetary
gear
Linde swashplate
motor
Linde bent axis
motor
Competitor
bent axis motor
Competitor radial
piston motor
Linde hydraulic motors offer uniformly high torque for smooth start up. Right from the start.
of a swashplate motorof a bent axis motor
logarithmic
scale
0,01 rpm 0,1 rpm 1 rpm 10 rpm
η
hm, min
η
hm, min
η
hm, min
η
hm, min
7
Operational parameters. Life time recommendations
Beneficial conditions for long service life
>> Speed lower continuous maximum speed
>> Operating pressure less than 300 bar Δp on average
>> Max. pressure only at reduced displacement
>> Viscosity 15 ... 30 cSt
>> Power continuous power or lower
>> Purity of fluid 18/16/13 in accordance with ISO 4406 or better
Adverse factors affecting service life
>> Speed between continuous maximum speed and intermittent maximum speed
>> Operating pressure more than 300 bar Δp on average
>> Viscosity less than 10 cSt
>> Power continuous operation close to maximum power
>> Purity of fluid lower than 18/ 16/ 13 in accordance with ISO 4406
Linde high pressure units are designed for excellent reliability and long service life. The actual service life of a hydraulic unit is
determined by numerous factors. It can be extended significantly through proper maintenance of the hydraulic system and by using
high-quality hydraulic fluid.
In order to guarantee long-term proper function and high efficiency of the hydraulic motors the purity of the pressure fluid must
comply with the following criteria according to Linde Works Standard WN 51 210. High purity oil can extend the service time of
the hydraulic system significantly.
Operational parameters. Filtration
>> For reliable proper function
and long service life
18/16/13 in accordance with ISO 4406 or better
>> Minimum requirements 20/18/15 in accordance with ISO 4406
>> Commissioning The minimum purity requirement for the hydraulic oil is based on the most sensitive system com-
ponent. For commissioning we recommend a filtration in order to achieve the required purity.
>> Filling and operation
of hydraulic systems
The required purity of the hydraulic oil must be ensured during filling or topping up.
When drums, canisters or large-capacity tanks are used the oil generally has to be
filtered. We recommend the implementation of suitable measures (e.g. filters) to
ensure that the required minimum purity of the oil is also achieved during operation
>> International standard Code number according to ISO 4406 purity class according to SAE AS 4059E
18/16/13 corresponds to 8A/7B/7C
20/18/15 9A/8B/8C
Recommended viscosity ranges
8
Operational parameters. Pressure fluids
In order to ensure the functional performance and high efficiency of the hydraulic motors the viscosity and purity of the operating
fluid should meet the different operational requirements. Linde recommends using only hydraulic fluids which are confirmed by
the manufacturer as suitable for use in high pressure hydraulic installations or approved by the original equipment manufacturer.
Permitted pressure fluids
>> Mineral oil HLP to DIN 51 524-2
>> Biodegradable fluids in accordance with ISO 15 380 on request
>> Other pressure fluids on request
Linde offers an oil testing service in accordance with VDMA 24 570 and the test apparatus required for in-house testing. Prices
available on request.
Further information regarding installation can be found in the operating instructions.
Viscosity recommendations
In order to be able to select the right hydraulic fluid it is necessary to know the working temperature in the hydraulic circuit. The
hydraulic fluid should be selected such that its optimum viscosity is within the working temperature range (see tables).
The temperature should not exceed 90 °C in any part of the system. Due to pressure and speed influences the leakage fluid
temperature is always higher than the circuit temperature. Please contact Linde if the stated conditions cannot be met in special
circumstances.
Pressure fluid temperature range [°C] -20 to +90
Working viscosity range [mm
²
/s] = [cSt] 10 to 80
Optimum working viscosity [mm
²
/s] = [cSt] 15 to 30
Max. viscosity (short time start up) [mm
²
/s] = [cSt] 1000
Working temperature [°C] Viscosity class [mm
²
/s] = [cSt] at 40 °C
approx. 30 to 40 22
approx. 40 to 60 32
approx. 60 to 80 46 or 68
Depending on the selected components, different torques may be transferred. Please ensure that the load transfer components
such as mounting flange and PTO through-shaft are designed adequately. Our sales engineers will be pleased to provide design
advice.
9
Torque transmission.
Bolt hole lengthBolt hole diameter
A) Flange profile
The diagram Torque transmission of HMF / A / V / R-02 shows the output side A and the PTO through-shaft B of a motor.
The information on the following pages refers to
>> mounting flange and drive shaft A
>> PTO flange and through shaft B
Torque transmission of the hydraulic motor
Bolt holt dimensions
Rated size HMF / A / V /R-02
50/55 75 105 135 165 210 280 135 D
M1 inside diameter mm 17.5 17.5 17.5 21.5 21.5 22 22 21.5
M2 outside diameter mm 40 34 34 40 40 - - 40
M3 length mm 20 20 20 20 25 30 30 20
M3
M1
M2
Mounting suggestions
Torque transmission. Mounting flange
4-hole flange
2-hole flange
2-hole flange with 4 additional bolt holes
Mounting flange
dimensions
in accordance with SAE J744
For rated
size
Mounting Dimensions
Shim Screw
Torque
(8.8) [Nm]
Torque
(10.9)* [Nm]
K
[mm]
H
[mm]
V
[mm]
SAE B, B-B 28 & 35 12.5x25x4 M12 80 110 146.0 - -
SAE C, C-C 2-holes 55-105 17x33x10 M16 195 275 181.0 - -
SAE D 2-holes 135 & 165 21x37x8 M20 385 540 228.6 - -
SAE D 2-holes
with 4 additional bolt holes
135 D - M16 - 275 228.6 230 190
SAE E 4-holes 210 & 280 - M20 385 385 224.5 - -
10
K
H
K
V
K
K
*) Option for standard design, necessary for tandem units
11
Torque transmission. Mounting flange
Plug-in housing for HMF/V/R 75-02
Plug-in housing for HMF/V/R 105-02 und 135-02
Rated size 75
D1 [mm] 190
D2 [mm] 251
K [mm] 224
L1 [mm] 143
L2 [mm] 124
Rated size 105 135
D1 [mm] 216
D2 [mm] 282
F1 [mm] 55.8
F2 [mm] 223.4
F3 [mm] 129
F4 [mm] 251.8
L1 [mm] 169
L2 [mm] 132 175
K
F4
L2
F1
D1
F2
D2
F3
L1
12
A) Dimensions drive shafts
Torque transmission. Drive shaft
Usable
spline length
Usable
spline length
Outside
diameter
Outside
diameter
Type 2. With undercutType 1. Without undercut
A) Linde Hydraulics shaft types
A) Shaft torque
*) Recommended shaft for tandem configurations
Shaft
16/32
15 t
12/24
14 t
16/32
21 t
16/32
23 t
8/16
13 t
16/32
27 t
8/16
15 t
16/32
33 t
Cont. torque Nm 279 299 470 649 839 1021 1298 2202
Max. torque Nm 468 502 790 1090 1410 1715 2180 3700
Shaft Spline
(in accordance with
ANSI B92.1)
SAE J744
code
for centering
and shaft
Outside
diameter
[mm]
Usable
spline
length
[mm]
Shaft
type
Available for rated size
28/35 50/55 75 105 135 165 210 280 135 D
16/32, 15 t B-B 24.98 29 1 x
12/24, 14 t C 31.22 30 2 x
16/32, 21 t 34.51 39.5 1 x x
16/32, 23 t 37.68 38.5 1 x
8/16, 13 t D 43.71 50 2 x x
16/32, 27 t 44.05 62 1 x x x
8/16, 15 t F 50.06 58 1 x* x
16/32, 33 t 53.57 58 1 x*
13
B) PTO dimensions for HMV-02
Torque transmission. PTO Through-Drive Motor
PTO Through-Drive motor w. coupling flanges
Based on a standard Series 02 variable hydraulic motor with single shaft end, the PTO Through-Drive Motor features two shaft ends
for torque transfer. This enables the hydraulic motor to be installed directly in the drive line without transfer gearbox, reducing
noise emission and fuel consumption. At the same time the overall efficiency increases.
For a direct installation into the drive line
B) PTO dimensions
Rated size 105 135 165 210 280
Z drive shaft profile
in accordance with ANSI B92.1
16/32, 19 t 16/32, 21 t 16/32, 22 t 16/32, 24 t 16/32, 27 t
D shaft diameter mm 31.2 34.51 36.05 39.27 44.05
L1 shaft end length-housing mm 30.1 16.2 -0.5 20.9 18
L2 usable spline length mm 41.5 31 31 44 47
L3 bearing stop mm 49.6 32 32.8 57.2 62
Continuous torque Nm 418 538 657 836 1115
Max. torque Nm 702 903 1104 1404 1873
14
Representation of the hydraulic components of a closed loop hydrostatic drive: Variable electro-hydraulic controlled HPV-02 E1
pump (top view) and fixed displacement motor HMF-02 plus filter, cooler and oil tank. The function diagram and the circuit diagram
show two types of cooling.
The closed loop.
Function diagram
Circuit diagram
1 Hydraulic pump HPV-02 R E1
2 Boost pump
3 Option 1: Cooler in boost circuit
4 Option 2: Cooler in the return line
5 Filter
6 Hydraulic motor HMF-02
7 Tank
8 Venting valve
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Function diagram
15
Representation of hydraulic components in an open loop circuit, based on the LSC system as an example: A HPR-02 regulating
pump with load sensing function for energy-saving flow on demand control and VW load sensing directional control valves for
load-independent and simultaneous movements of several consumers without mutual influencing. The system is complemented
with proven Linde products such as electronic controllers, swing drive and hydraulic motors.
The open loop.
Further information about the LSC system is available in the data sheets “HPR-02” and “VT modular” or directly from our sales
engineers.
1 Hydraulic pump HPR-02 E1L
2 Manifold valve plate
3 Pressure relief function
4 Directional control valves
5 Hydraulic cylinder
6 Hydraulic motor HMF-02
7 Cooler
8 Filter
9 Tank
10 Venting valve
Circuit diagram
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
16
Purge valve 1. Without (0 l/min)
Functions. Purge and case flushing
Purge and case flushing is used
>> for reducing the temperature of the motor and the system in the open and closed loop circuits
>> for replacing the oil in the circuit
>> to enhance filtration and
>> for removing air from the system
For equipment options for Series 02 motors please refer to the model code.
Purge flow in closed loop circuit
Purge valve 4. Flow controlledPurge valve 3. Restricted
Purge valve 2. Standard and increased
Version Purge valve pressure CBV setting Diagram Purge Flow Diameter of orifice
Standard
10 bar
with 20 bar feed pressure
3 10 l/min 2.5 mm
Standard
14 bar
with 20 bar feed pressure
2 10 l/min without orifice
Restricted
10 bar
with 20 bar feed pressure
3 5 l/min 2 mm
Restricted
14 bar
with 20 bar feed pressure
3 5 l/min 2.5 mm
Increased
10 bar
with 20 bar feed pressure
2 20 l/min without orifice
Flow controlled
14 bar
with >20 bar feed pressure
4 4 l/min with flow regulator
17
Servo supply pressure delivers the force needed to change the position of the swash plate in variable displacement and pressure
regulated motors. For equipment options for Series 02 motors please refer to the model code.
For HMR-02 Regulating motors
Internal supply. High pressure circuit
Functions. Servo Supply Pressure Feed
Internal supply. Purge circuit External supply. Purge circuit
For HMV-02 variable motors
V
min
V
max
V
min
V
max
V
min
V
max
A, B Work ports
L, U Case drain / vent connections
E Make-up connection
18
The secondary valves (crossline relief valves) protect the system from pressure overload by using two interlinked pressure
relief valves (combined with check valves). It is recommended for applications where this protective function is not provided by
other means (e.g. through primary protection at the pump or LS valves). The secondary protection includes a make up function.
It prevents cavitation and is required in an open loop circuit if the motor requires more oil than is supplied. For special situations
like in the swing gear drive the installation of controllable secondary valves is recommended. For equipment options for Series 02
motors please refer to the model code.
Functions. Crossline relief (secondary) protection
A, B Work ports
L, L1, U Case drain/vent connections
X, Y Control connection for dual
pressure crossline relief valve
E Make up connection
With dual pressure crossline relief valve protection
With crossline relief valve protectionWithout crossline relief valve
19
Functions. Signal selection for pressure regulator
Pressure regulated motors shift to maximum displacement at high operating pressure, irrespective of which side is under pressure.
In propel drives this can have undesirable effects. For example, if the motor shifts to maximum displacement during the transition
phase from straight travel with low system pressure to overrun (deceleration, downhill travel) with high pressure on the reverse
side, an extremely strong vehicle braking effect will occur. The signal selection for pressure regulator prevents the regulator being
subjected to this braking pressure and, therefore, ensures that the motor remains at minimum displacement. For equipment options
for Series 02 motors please refer to the model code.
With signal selection for
pressure regulator
Without signal selection
for pressure regulator
20
Functions. Counterbalance valve
The counterbalance (brake) valve prevents the motor over speeding during an over-run situation. To achieve this, the motor
return flow is automatically and continuously metered such that it always matches the input flow. Different braking responses are
possible. The integrated make-up function simultaneously prevents cavitation. A purge and case flushing function is
also integrated. Counterbalance (brake) valves are typically used for drive systems in open loop circuits. The function of the high
pressure relief valves can be integrated in the counterbalance valves. Further types of counterbalance valves are shown in section
“Dimensions. HMR-02”.
Dimensions
With counterbalance (brake) valve, here: axial attachment
Brake valve 1” 1 ¼”
Length L 168.5 168.5
Width B 165.7 195
Height 136.6 143
21
Functions. Speed sensor
Speed sensors electronically register the motor speed and send an associated input signal to electronic drive controls. Examples
are shown below.
With speed sensorWithout speed sensor
22
Based on the respective system requirements, Linde Hydraulics offers fixed displacement, variable displacement and regulating
motors with high starting torque for open and closed loop operation. Optional auxiliary functions, zero displacement capacity and
PTO through-shaft enable higher machine design flexibility and increase the efficiency of the travel drive. The motors are optionally
controlled electrically, hydraulically or pneumatically.
Motor types.
HMV-02 H HMV-02 E
HMV-02 EH1P
HMV-02 PTO
Function overview
Motor type Control/function Product name
Fixed displacement motor HMF-02
with swing drive function HMF-02 P
displacement adjustable HMA-02
Regulating motor V
max
pneumatic HMR-02
V
max
hydraulic, low pressure HMR-02
V
max
hydraulic, high pressure HMR-02
V
max
electric HMR-02
Variable displacement motor stepless variable control, hydraulic HMV-02 H1
stepless variable control, electric HMV-02 E1, E4, E6
two position control (flip-flop), hydraulic HMV-02 H2
two position control (flip-flop), electric HMV-02 E2
hydraulic stepless variable control w/ pressure override and electric
pressure selection
HMV-02 EH1P
HMV-02 EH1P CA
23
Motor types.
HMV D-02
HMR-02 HMF-02
HMF-02 P HMA-02
HMV T-02
24
Motor types. HMV-02
Further features
>> stepless or two position control
>> electric or hydraulic control
>> override pressure control possible
>> signal selection for pressure regulator possible
>> can be set to 0 cm³/rev
>> double motor available
Product benefits
>> smooth low-speed operation
>> high starting torque
>> wide torque/speed conversion range
>> highly dynamic response characteristics
>> compact design
>> high power density
>> high reliability
>> long service life
>> simplified drive line
Motors with stepless variable control are suitable for open and closed loop circuit. Without control signal they shift to maximum
displacement V
max
. Displacement control is hydraulic or via an electric proportional control signal. Servo pressure supply can be
applied internally or externally, see section “Functions. Servo pressure supply”. The following data are independent of the nominal
motor size.
25
Motor types. HMV-02 H1 and E1 stepless
Stepless variable control features
External servo
pressure supply
Minimum tripping bar 20
Maximum permissible bar 40
Hydraulic control
if V
max, eff
> V
min, nominal
,
the resolution is lower
Control range bar ∆=6
Control begin bar 7, 8, 9 or 9.5
Maximum permissible pressure bar 40
Electric
control
Connector type
DIN EN 175301-803, Deutsch,
AMP Junior Timer, (2-pole, Cod.1)
Rated voltage = max. continuous voltage V 12 24
Voltage type DC voltage
Power input W 15.6
Rated current = max. continuous current mA 1300
Control current
Swash begin mA 450 225
Swash end mA 1200 600
Relative duty cycle % 100
Protection class IP54 (DIN), IP67 (Deutsch), IP 6K6K (AMP)
Control types
Digital control
via Pulse Width
Modulation PWM
100 Hz rectangle,
Pulse duty ratio variable
over control range
Analog
Direct current with dither overlay
(dither frequency nom. 35 Hz,
duty cycle 1:1)
Minimum response time with standard orifice
with 20 bar servo pressure
s 0.5 - 1
A Control pressure /current
B Motor displacement
C Swash begin
D Swash end
Characteristic E1, H1 control
Characteristic E4 control
Characteristic E6 control
E1, H1
E4
E6
B
A
0%
33%
100%
C D
Two position motors are suitable for open and closed loop operation. Without control signal they are set to maximum displacement
V
max
. Adjustment between V
min
and V
max
is smooth and with short response time. The required switching signal can optionally be
hydraulic or electric, the servo pressure supply internal or external, see section Functions. Servo pressure supply. The following
data are independent of the rated motor size.
26
Motor types. HMV-02 H2 and E2 two position
Control signal
0 max
max
min
Displacement
A,B Work port connections
L,U Case drain/vent
connections
E Servo supply pressure
connection
X Control connection
Two position motor with hydraulic control pressure
and external servo supply pressure
Two position control features
External servo
pressure supply
Minimum tripping bar 20
Maximum permissible tripping bar 40
Hydraulic
control
Shifting pressure
Minimum tripping
bar 20
Shifting pressure
Maximum permissible tripping
bar 40
Electric Control
Connector type
DIN EN 175301-803, Deutsch,
AMP Junior Timer, (2-pole, Cod.2)
Rated voltage = max. continuous voltage V 12 24
Voltage type DC voltage
Power input (cold) W ≤ 26
Relative duty cycle % 100
Protection class IP54 (DIN), IP67 (Deutsch), IP 6K6K (AMP)
Minimum response time with standard orifice
with 20 bar servo pressure
s 0.5 - 1
VB Swash begin
VE Swash end
RB Start of pressure override
RE End of pressure override
Operating pressure
Control pressure
This motor is used primarily for closed loop operation together with speed-dependent hydraulic pump, type HPV-02 CA.
Alternatively, with hydraulically or electro-hyraulically pilot-operated drives for which a high pressure regulating function is also
required. Without control signal the motor shifts to maximum displacement V
max
. Stepless variable control to lower displacement
is hydraulic, with control pressure generated by the speed dependent pump. The motor is also equipped with a system pressure
override which, at a predefined setting, automatically increases its displacement in response to system related torque demand.
The following data are independent of the rated motor size.
27
Motor types. HMV-02 EH1P stepless with pressure override
0
0
VB VE
RERB
max
max
max
min
Displacement
Auxiliary functions
>> Electric V
max
control, independent of signal pressure, for maximum displacement motor operation
>> Electric selection of pressure signal for pressure regulator. For details, see “Functions. Signal selection for pressure regulator”
Features of stepless variable control with pressure override
EH1P. Case pressure as reference,
«Bleed» regulation
Characteristic EH1P & EH1P-CA
EH1P-CA. Feed pressure as reference,
«Non-Bleed» regulation
A,B Port connections
L,U Case drain / vent connections
X Control pressure connections
M1 Solenoid for maximum
displacement override
M2 Solenoid for signal selection for
pressure regulator
Hydraulic control
signal
Control pressure range bar 8 to 14
Maximum premissible pressure bar 40
Hydraulic pressure
override
Regulation begin pressure
adjustable, please specify with order
bar 190-260
Regulation end pressure bar 5 % above regulation begin pressure
Electric control signal Electric V
max
control and signal selection for pressure regulator, see E2 control for technical data
Minimum response time with standard orifice
with 20 bar servo pressure
s 0.5
Operating pressure
Control pressure
V
min
V
max
V
min
V
max
28
28
The double motor consists of two Series 02 variable motors arranged back-to-back. In addition to a wide torque/speed conversion
range it offers the option of direct installation in the drive line, since one or two shaft ends are optionally available for torque
output. Noise emission and fuel consumption are reduced because no transfer gearbox is required. At the same time the overall
efficiency increases. The performance comparison diagram shows the required drive capacity for different design variants at four
operating points.
Motor types. HMV D-02 double motor
Road travel
Torque
Speed
Torque
Speed
Typical operating range
Work cycle
Typical operating range
1-step gear reduction
Stepless with double motor2-pos. gearbox/conventional transmission
Further features
>> two HMV-02 arranged back-to-back
>> connection for high pressure, servo and control pressure for each motor
>> motor control optionally through one signal or two separate signals
>> both motors can be set to 0 ccm/rev
>> possible conversion ratio 1:6
>> optionally two shaft ends for direct installation in the drive line
Product benefits
>> wide conversion range for stepless acceleration
>> simplified drive line
>> high tractive effort and high terminal speed
>> highly dynamic response characteristics
>> high starting torque
Performance comparisonHMV D-02
Speed [km/h]
Power [kW]
HPV 75 +
HMV 105
HPV 75 +
HMV 210
HPV 75 +
HMV 135D
Maximum speed
Required Diesel
power
at 12 km/h,
loaded
at 12 km/h,
unloaded
at 5 km/h,
loaded
30 30
20 20
10 10
Example vehicle: power 75 kW
Weight: unloaded 4 t, loaded 6 t;
29
29
Motor types. HMV T-02 tandem motor
Further features
>> two HMV, arranged face-to-back
>> available as HMV 210-02 and 280-02
>> separate connections for high pressure and feed pressure
>> individual control
>> both motors can be set to 0 ccm/rev
>> same mounting flange as single motor
Benefits
>> doubled torque at same gearbox interface
>> simple torque increase in existing applications
>> higher speed as with single motors of the same size and as with bent axis motors
>> more slender outline as single motors of the same size
>> direct driveline-integration, no need for gearbox
The tandem motor consists of two HMV-02, arranged face-to-back and connected with a tandem flange. Alike the double motor,
the tandem motor can also be integrated directly into the driveline and is available with one or two shaft ends.
30
Motor equipment. Cross over relief valve block
Further features
>> modular add-on functionality
>> for radial high-pressure connections
>> for all HMV/HMR/HMA-02 motors
Benefits
>> additional high pressure relief in closed circuit application
>> pressure relief exceeding the pump relief valve capability, for example while breaking hydraulically
with high displacement ratio HMV V
min
/V
max
>> connection of a second motor with minimized hydraulic hose length, for example tandem motors
The cross over relief valve block offers additional high pressure protection for the series 02 motors. It is mounted to the radial high
pressure ports. As well as this protective function, the block offers tee connectors for the high pressure connections in order to
connect an additional motor to the system without the need for long hoses.
31
Motor types. HMR-02
Further features
>> optionally with purge valve for circuit and case flushing in closed loop circuit
>> system pressure regulation, no external control lines required
>> signal selection for pressure regulator for closed loop circuit
>> counterbalance (brake) valve CBV optional
Product benefits
>> smooth low-speed operation
>> high starting torque
>> wide conversion range
>> compact design
>> high power density
>> high reliability
>> long service life
>> highly dynamic response characteristics
>> simplified drive line
32
Linde regulating motors are suitable for open and closed loop operation. They are high-pressure regulated and shift to minimum
displacement V
min
at system pressures below the regulation begin point. When the defined high pressure regulation set point is
reached, the motor smoothly increases displacement to match the torque required by the system.
The following data are independent of the rated motor size.
Motor types. HMR-02
0 maxRERB
max
max
0
min
Operating pressure
Displacement
Torque
Regulating motor features
Typical equipment options
>> Open loop circuit. Secondary (crossline relief) valves or counterbalance (brake) valves
>> Closed loop circuit. Electric signal selection for pressure regulator
Hydraulic regulation
Regulation begin pressure
adjustable, please specify with the order
bar 190 to 260
Regulation end pressure bar 5% above regulation begin pressure
Pneumatic V
max
override control
Shift pressure min/max bar 4 to 8
Hydraulic V
max
override control
Shift pressure min/max Low pressure bar 20 to 30
Shift pressure min/max High pressure bar 30 to 420
Electronic control
signal
Connector type
DIN EN 175301-803, Deutsch,
AMP Junior Timer (2-pole, Cod. 2)
Rated voltage = max. continuous voltage V 12 24
Voltage type DC Voltage
Power input (cold) W ≤ 26
Relative duty cycle % 100
Protection class
IP54 (DIN), IP67 (Deutsch),
IP 6K6K (AMP)
Minimum response time with standard orifice
with 20 bar servo pressure
s 0.3 - 0.6
RB Regulation begin
RE Regulation end
Displacement
Torque
Regulating motor characteristic
Regulating motor with pneumatic V
max
override control
33
HMR-02 with electric signal selection for pressure regulator
Regulating motor with hydraulic V
max
override control
The additional V
max
control enables fixed displacement motor operation independent of the control pressure.
HMR-02 with electric V
max
override control and signal selection for pressure regulator
Motor types. HMR with Vmax override control
34
Motor types. HMF-02
Further features
>> optimised start-up and low-speed characteristics
>> optionally with purge valves for purge and case flushing
>> fixed and dual setting secondary valves optional
Product benefits
>> smooth low-speed operation
>> high starting torque
>> compact design
>> high power density
>> high reliability
>> long service life
0 maxControl pressure
max
min
High pressure
35
Motor types. HMF-02
The HMF-02 motor is a high-pressure fixed displacement motor for open and closed loop operation. Secondary valves enable
customised definition of soft motor start-up and slowdown. With dual setting secondary valves the maximum acceleration and
braking torque is additionally available. The settings and shifting ranges can be adjusted according to project-specific requirements,
see sections “Functions. Crossline (secondary) protection” and “HMF-02 P”.
A, B Work ports
L, L1, U Case drain / vent connections
X, Y Control connections for dual pressure
crossline relief valve
E Make up connection
Fixed displacement motor HMF-02
Motor with dual pressure crossline relief valves
Fixed displacement motor with crossline relief valves fixed setting
Control pressure
36
The HMF-02 motor is a high-pressure fixed displacement motor for open loop operation. With integrated LS directional control valve
and TC torque control it combines the benefits of the Series 02 with all auxiliary functions typically required for application in swing
and winch drives. The HMF-02 P is available in the rated sizes 35, 55, 75 and 105. Differing from the standard HMF, the nominal
pressure is 280 bar, the peak pressure is 300 bar.
Motor types. HMF-02 P
P, T Work port connections
L, U Case drain / vent connections
LS LS-pressure connection
M Gauge ports
max
max
Secondary valve
Speed
Counter-
rotation
pressure
TC function
High pressure
0
For powerful and dynamic application in swing drives the TC function enables control pressure-dependent acceleration. Once the
maximum rotating speed is reached, torque control is superimposed and pressure level is reduced for energy-saving operation.
If the control valve is reset to the neutral position, no additional control signal is generated and the rotary motion slows down
uniformly. Active counter-rotation is possible with controllable secondary valves. A counteractive control signal is generated, and
the rotary motion is decelerated along the characteristic counter-rotation pressure curve.
TC function
Features
>> directional control valve function
>> torque control function
>> HP valves with controllable characteristic curve
>> priority function
>> secondary protection combined with make-up function
>> purge and case flushing function
>> anti reaction valve
Product benefits
>> smooth low-speed operation
>> high starting torque
>> torque and speed control
>> controllable counter-rotation
>> compact design
>> high power density
>> high reliability
>> long service life
HMF-02 P with integrated swing function
37
The HMA-02 motor is a high-pressure motor with adjustable displacement for open and closed loop operation. For application
which requires dependent on the situation a reduced or increased displacement, the HMA-02 offers the expected flexibility. Since
the displacement can be adjusted on request stepless at a screw. For a well-adjusted torque.
Motor types. HMA-02
A, B Work port connections
L, U Case drain / vent connections
HMA-02 the adjustable fixed displacement motor
38
Dimensions. HMV-02
Metric connection thread according to ISO 6149-1
Locking thread for the SAE high pressure-connections, metric according to ISO 261
Hexagon socket head cap screws according to ISO 4762
Further threads, dimensions and versions with speed sensor are available on request
Rated size 55 75 105 135 165 210 280
D1 [mm] 127 152.4 165.1
B1 [mm] 181 228.6 224.5
B2 [mm] 208 258 269
B3 [mm] 86 95 96 108 125 134 156
B4 [mm] 95 96 108 125 134 156
B5 [mm] 86 95 96 108 125 * *
B6 [mm] 85 95 96 108 125 * *
B7 [mm]
with electric override control
- 180 181 193 210 * *
B8 [mm]
with electric override control
- 180 181 193 210 * *
H1 [mm] 80 86 91 98 98 135
H2 [mm] 83 93 99 103 98 135
H3 [mm] 84 93 95 108 120 134 151.5
H4 [mm] 90 105 106 114 132 133 152.5
H5 [mm] 84 93 96 107 118 * *
H6 [mm] 90 105 114 132 * *
H7 [mm]
with electric override control
- 88 102.5 * *
H8 [mm]
with electric override control
- 92 77.5 * *
L1 [mm] 41 56 75
L2 [mm] 212 226 247 270 314 336 381
L3 [mm] control
hydraulic control 33 5 5 8
electric control 75 58 55 59
L4 [mm] 217 231 252 275 305 * *
L5 [mm] pilotage
hydraulic control 18 5 * *
electric control 70 58 * *
L6 [mm]
with electric override control
- 33 32.5 * *
L7 [mm]
with electric override control
- 28 32.5 * *
L8 [mm]
with electric override control
- 80 80.5 * *
L, U M22x1.5 M27x2 M33x2
E
Connection for external servo supply pressure feed
M14x1.5
X
Connection for hydraulic control
M14x1.5
M, M1
Solenoid for electric control
see section Motor types. HMV-02 stepless
M2
Solenoid for signal selection for pressure regulator
see section Motor types. HMV-02 stepless
*) Product design on demand
Radial high pressure-connections
39
Dimensions. HMV-02
Axial high pressure-connections
HMV-02 with electric override control
Axial high pressure-connectionsRadial high pressure-connections
40
Dimensions. HMR-02
Metric connection thread according to ISO 6149-1
Locking thread for the SAE high pressure-connections, metric according to ISO 261
Hexagon socket head cap screws according to ISO 4762
Further threads, dimensions and versions with speed sensor are available on request
Rated size 75 105 135 165 210 280
D1 [mm] 127 152.4 165.1 *
B1 [mm] 181 228.6 224.5 *
B2 [mm] 208 256 269 *
B3 [mm]
sec. relief valve
without 95 99 108 - 134 *
with 135 136 140 - 134 *
B4 [mm]
sec. relief valve
without 95 105 108 - 134 *
with 12 105 114 - 134 *
B5 [mm]
sec. relief valve
without 95 99 108 * *
with 135 139 141 148 * *
B6 [mm] 102 105 114 125 * *
B7 [mm]
pneumatic 74 - * *
hydraulic 62 46 * *
B8 [mm] 78 * *
B9 [mm] 103 108 *
B10 [mm] 89 169 97.5 *
B11 [mm] 130 107 97.5 *
H1 [mm] 86 91 96 98 135.5 *
H2 [mm] 93 99 100 105 135.5 *
H3 [mm] 93 98 108 - 134 *
H4 [mm] 102 110 - 133.5 *
H5 [mm] 56 *
H6 [mm] 91 96 107 118 134 *
H7 [mm] 102 107 109 125 133.5 *
H8 [mm] 81 *
H9 [mm] 85 102 168.5 *
L1 [mm] 56 75 *
L2 [mm] 229 247 270 - 336 *
L3 [mm] 231 252 275 304 - *
L4 [mm] 53 *
L5 [mm]
regulator with electric maximum displacement override and
signal selection for pressure regulator
80 *
L6 [mm] 127 120 143 *
L, U M22x1.5 M27x2 M27x2 *
X1
port for hyd./pneum. max. displ. override
M14x1.5 M14x1.5 *
M1
solenoid for electric maximum displacement override
see section Motor types. HMR-02
M2
solenoid for signal selection for pressure regulator
see section Motor types. HMR-02
*) Product design on demand
41
HMR-02 with brake valve. Radial high pressure-connections
HMR-02 with brake valve. Axial high pressure-connections
Axial high pressure-connections
Radial high pressure-connections
Dimensions. HMR-02
42
Radial high pressure-connections
*) For dimensions of HMF 35-02 P, 55-02 P, 75-02 P and 105-02 P, please see the installation drawing
Metric connection thread according to ISO 6149-1
Locking thread for the SAE high pressure-connections. Metric according to ISO 261
Hexagon socket head cap screws according to ISO 4762
Further threads are available on request
Axial high pressure-connections
Dimensions. HMF-02
Rated Size 28 35* 50* 75* 105* 135
165
HMA
210
HMA
D1 [mm] 101.6 127 152.4 165.1
B1 [mm] 146 181 228.6 224.5
B2 [mm] 162 200 250 258 269
B3 [mm] 146 166 250 268
B4 [mm] 149 169 250 268
H1 [mm] 61 70 73 82 86 98 135
H2 [mm] 61 70 73 82 86 98 135
H3 [mm]
crossover relief
valves
without 67 72 78 83 89 120 134
with fixed setting 108 116 119 128 137 - -
with dual pressure
setting
129 137 140 149 158 - -
H4 [mm] 69 79 83 88 132 133
H5 [mm] 64 69 75 80 86 132 133
L1 [mm] 41 56 75
L2 [mm] 193 202 229 254 277 314 336
L3 [mm] 191 200 227 252 275 305 336
L, U M22x1.5 M27X2
E
connection fot anti-cavitation oil supply
M18x1.5 M22x1.5 - -
43
Dimensions.
HMV-02 [E6] A
HMR-02
HMA-02
B
B
A
HMF-02 A B
Modular system features.
The Series 02 motors are based on a modular system with the following characteristics. This enables our distribution partners to
configure the product according to your requirements. The latest characteristics and available options can be taken from the model
code, which is available on our homepage.
>> V
min
>> Mounting flange
>> Drive shaft
>> V
max
control
>> Control orifice
>> Secondary valves
>> Direction of HP-connections
>> Purge valve setting
>> Shuttle valve
>> Drain port U, L1, L2
>> Coupling flange
>> PTO Through-Drive
>> Port threads
>> Type of control
>> Remote control pressure
>> Start of control
>> Voltage for E-controls
>> Connectors for E-controls
>> Displacement fixing
>> Speed sensor
>> Pilot pressure compensation
>> Surface treatment
Input flow and drive shaft rotation
Connections
High pressure at port Right hand Left hand
Shaft output
direction
of rotation
Rated size 28/35 50/55 75 105 135 165 210 280 135D
F1 [mm] 50.8 57.2 66.6 57.2
F2 [mm] 74 84 102 84
F3 [mm] 23.8 27.8 31.8 27.8
A,B [mm] ¾” 1” 1 ¼” 1 ¼”
S [mm] M10 M12 M14 M12
HMV-02 B A
How to reach us.
Linde Hydraulics. Sales and service partners.
Internet www.linde-hydraulics.com
Phone +49.60 21.99-42 01
+49.60 21.99-0 switchboard
Fax +49.60 21.99-42 02
+49.60 21.99-42 30
Email info@linde-hydraulics.com
Mail Linde Material Handling GmbH
Linde Hydraulics
Grossostheimer Str. 198
63741 Aschaffenburg
P.O. Box 100136
63701 Aschaffenburg
Turning Power into Motion.
LHY.HMF.01/11.e
Linde Hydraulics. Sales companies.
(E) Linde Material Handling Ibérica S.A.
Avda. Prat de la Riba, 181, 08780 Palleja (Barcelona), phone +34.9 36 63 32 32, hidraulica@linde-mh.es
(F) Fenwick Linde, Activité Linde Hydraulique
1, rue du Maréchal de Lattre de Tassigny, 78854 Elancourt Cedex, Telefon +33.1 30 68 46 47, contact.hydraulics@fenwick-linde.fr
(GB) Linde Hydraulics Ltd.
12-13 Eyston Way, Abingdon, Oxfordshire, England, OX14 1TR, Telefon +44.12 35.52 28 28, enquiries@lindehydraulics.co.uk
(I) Linde Material Handling Italia SPA
Via Luguzzone, 21020 Buguggiate (VA), phone +39.03 32.877 111, vendita.idraulica@linde-mh.it
(USA) Linde Hydraulics Corporation
P.O. Box 82, 5089 Western Reserve Road, Canfield Ohio 44 406, phone +1.330.5 33 68 01, info@lindeamerica.com
(BR) Linde Hydraulics do Brasil
Rua Anhanguera, 1.121, Jd. Piratininga - CEP 06230-110, Osasco SP, phone +55.11.36 04 47 56, hydraulics@linde-mh.com.br
(VRC) Linde (China) Forklift Truck Co. Ltd., Division Hydraulics
No. 89 Jinshang Lu, 361009 Xiamen, phone +86.592.55 33 291, hydraulics@linde-china.com
Linde Hydraulics, Grossostheimer Str. 198, 63741 Aschaffenburg
phone +49.60 21.99-42 01, fax +49.60 21.99-42 02, www.linde-hydraulics.com
