AXIAL PISTON MOTORS AHP MF-51 - AHP Hydraulika

AXIAL PISTON MOTORS
AHP MF-51
WITH FIXED DISPLACEMENT

GENERAL DESCRIPTION
• 30 cm 3
• 33 cm 3
AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
Version.: 4/2010
Page: 3/12
AHP MF-51 units are axial piston motors of slipper design. Rotor of this pump is driven by shaft
which is supported by 2 roller bearings. Inside of the rotor, there are moving 9, hydrostatically balanced,
pistons parellelly with an axis of rotation. They are slipping on the inclined thrust plate which is placed
inside of the swash plate and this way, the pistons are moving with a straight -line motion.
They create one suction and one pressure stroke per revolution. Fluid direction is performed by
frontal rotational distribution . Single cylinders are joined either with a suction channel or a pressure one of
end cap during a motion of the distributor. Swash plate angle is not possible to regulate continuously. Case
of the motor is produced from an aluminium alloy.
These units are designed for conversion of pressure energy into mechanical one. They can be used
in closed loops of various machines (e.g. road, construction, grading, agricultural, forest, mining etc.) where
is demanded a continuous change of input parameters. The loop has to be designed such way that pump
parameters, which are determined by technical conditions and project of the specific appliction , must not be
exceeded during an operation.
.

TECHNICAL DATA
AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
PARAMETER SYMBOL DIMENSION
DISPLACEMENT Nominal Vgn cm 3
SPEED
Nominal nn
min -1
Version.: 4/2010
FRAME SIZE
Page: 4/12
030 033
30,1 33,3
2500 2500
Maximal nmax 3600 3600
Minimal nmin 500 500
Nominal Qn
FLOW dm 3 min -1 75,25 83,25
Maximal Qmax 108,4 119,9
PRESSURE
OUTPUT
TORQUE
Nominal pn
21
MPa
Maximal pmax 28
Nominal (pn, nn)
Pn kW 26,4 29,2
Maximal (pmax, n max) Pmax kW 50.7 56
Maximal �p = 28 MPa Mmax Nm 134,6 148,6
Rate coefficient k Nm.MPa -1
6,4 7,1
SWASH PLATE ANGLE αGmax � � � 16,4 18
DIRECTION OF ROTATION
Viewed from the shaft side.
CW or CCW
LEVEL OF ACOUSTIC OUTPUT LPA dB/MPa 78/28
MAX. CASE PRESSURE p0 MPa
DIMENSIONAL DATA
0,25-continuous
0,5- intermittent
Attachment No. 5-8
AHP K-0276 ... 8
WEIGHT m kg 10

OPERATING CONDITIONS
AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
Ambient temperature range : -20°C through + 55°C
Version.: 4/2010
Page: 5/12
Climate type EWD-r / CT in temperature range: -20°C through + 55°C
according to STN 038900 part 2-1
In other macroclimate areas the units can work only after performing of special adaptation which has to be
approved by the producer in advance and specified with a special production number in model code.
Operation Conditions
Degree of Separation : �10 = 1,5 � 2
(Cleaning ability 10�m)
�25 � 75
Fluid Filtration: 18 /13 and better
according to STN 65 6206 (ISO 4406 )
See manual GTN N-005
Range of operation viscosity : (12 �60).mm 2 s -1
Minimal Viscosity: 7.mm 2 s -1
Viscosity at cold starting: 1000. mm 2 s -1
Temperature Range of Operation Fluid: -20° � +130°C
Recommended Operation Fluids: See manual GTN N-005 (up to +100°C)
See Attachment No. 1 (up to +130°C)
Operation Posion
Operation position is arbitrary. Conditions of installation have to enable disassembly of the pump or its
subgroups avoiding to a disassembly of the important parts of the machine (e.g. engine, gear box, etc.).
Above-Sea Level
The motors can work in arbitrary above-sea level.
Relative Humidity
Relative humidity for without-truble operation of the motors is max. 80 % .
Quality Parameters
Reliability of the motor depends to a greater extent on following :
- correct specification of the units into hydraulic circuit
- following the specified operation and maintenance
- folloving the using of the specified operation fluid and keeping of its temperature and purity
- purity of the components mounted into hydraulic circuit
Reliability Indexes
Reliability Indexes are stated at speed nn=2500 min -1 and pressure pn= 21 MPa.
Following parameters are set down for evaluation of reliability of the motors:
- average period between 2 breakdowns t = 1500 Mh
- average technical life-time up to overhaul repair tžGO = 5000 Mh
Marking of the motors
Each motor is marked by company tag where are the following data:
- trade mark of the producer
- description - model code specifying the type and size of the motor
- production number
- date of production (month, year)
- weight (kg)
.

TYPE DESIGNATION
AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
1 2 3 4 5 6
AHP MF 51 XXX XX XXX XXX
1. MF Motor Fixed
2. 51 Series AHP closed loop
3. Displacement vgmax [cm 3 ]
030 30,1 cm 3 /rev ●
033 33,3 cm 3 /rev ○
4. Shaft options
A Cylindrical � 25, Key 8x7x32 ○
B Cylindrical � 25, Key 6,35x6,35x40, SAE B ●
C Conical 1:8 � 22,77, SAE B ○
D 13 teeth 16/32 PITCH � 21,805, SAE B ○
5. Dimensions of connecting high-pressure ports
A
High-Pressure Ports A,B
3 / 4”-16UNF-2B
Case Port L ○
9 / 16“-18UNF-2B ●
M M18x1.5 M14x1.5 ○
6. Special Production Number
000 standard, basic model ●
100 SAE B flange for 2 bolts ○
USAGE OF HYDRAULIC OILS AT OPERATION TEMPERATURE
RANGE WITHIN + 130°C
Type of Oil
Density
at 15°C
Viscosity Viscosity
at 40°C at 100°C Index
Flash
Point
Point of
Congelation
Starting
Temperature
kg/m 3 mm 2 /s mm 2 /s °C °C °C
Version.: 4/2010
Page: 6/12
Producer /
Supplier
UNIVIS N 100 875 97 14 150 225 -39 -8 ESSO
MOBIL SHC 527 857 106 16 160 243 -54 -3 MOBIL
MOBIL SHC 526 852 68 11.5 158 240 -54 -10 MOBIL
TELLUS OIL T 100 886 100 14,7 154 215 -33 -3 SHELL

AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
AXIAL PISTON MOTOR AHP MF-51 XXXXX000
STANDARD MODEL WITH SHAFT A
DIMENSIONAL DATA
Dimension
X1 3/4"-16UNF-2B
M18x1,5
X2 9/16“-18UNF-2B
M14x1,5
Rotation
High Pressure in Channel A 2
High Pressure in Channel B 1
Version.: 4/2010
Page: 7/12

AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
AXIAL PISTON MOTOR AHP MF-51 XXXXX100 WITH SHAFT B
DIMENSIONAL DATA
Dimension
X1 3/4"-16UNF-2B
M18x1,5
X2 9/16“-18UNF-2B
M14x1,5
Rotation
High Pressure in Channel A 2
High Pressure in Channel B 1
Version.: 4/2010
Page: 8/12

AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
AXIAL PISTON MOTOR AHP MF-51 XXXXX100 WITH SHAFT C
DIMENSIONAL DATA
Dimension
X1 3/4"-16UNF-2B
M18x1,5
X2 9/16“-18UNF-2B
M14x1,5
Rotation
High Pressure in Channel A 2
High Pressure in Channel B 1
Version.: 4/2010
Page: 9/12

AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
AXIAL PISTON MOTOR AHP MF-51 XXXXX100 WITH SHAFT D
DIMENSIONAL DATA
Dimension
X1 3/4"-16UNF-2B
M18x1,5
X2 9/16“-18UNF-2B
M14x1,5
Rotation
High Pressure in Channel A 2
High Pressure in Channel B 1
Version.: 4/2010
Page: 10/12

AXIAL PISTON MOTORS
WITH FIXED DISPLACEMENT AHP MF-51
Producer:
AHP HYDRAULIKA a. s.
Robotnícka 841, 039 01 TURČIANSKE TEPLICE
SLOVAK REPUBLIC
Phone: +421 43 491 14 52 Fax: +421 43 491 14 05
www.ahphydraulika.sk e-mail: sales@ahphydraulika.sk
Distributor:
Version.: 04/2010
Page: 12/12