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AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
EPTM-mixer drives your solution for the
complete transit mixer drive !!!NO MORE searching and negotiating with too many vendors !
Everything from one manufacturer !
* One partner
* One system
* One Order
* One Shipment
* One Guarantee
* One package price
EUROparts, Ltd, with its EpTM Mixer Drives
the transit mixer drive:
TRANSIT MIXER SPEED REDUCERS/PLANETARY GEAR BOXES
Complete line of the German technology based Gear Boxes of the EpTM Series, for all drum driving
application needs. Ep Gear Boxes Series integrates the quality & good service provided to you by EURO-
parts, Ltd.
EpTM sGEAR BOXES SERIES ADVANTAGES:
HIGH TORQUE: From 60.000 to 82.000 Nm, for any drum driving application.
IMROVEMENTS: Floating female spline sun gear for radial load absorption.
BEST MATERIALS: In Casting, forging, gears as per DIN high standards.
WORKMANSHIP: To assure optimum quality and performance.
COMPACT DESIGN: Make the Ep Gear Boxes Series, one of the lightest gear-boxes in the industry tocomply with the weight limitation laws. Special design of the planetary carriers (triangular).
EASY MINTENANCE: Simple assembling & disassembly procedures. Main Seal & Bearing not dama-
ged while servicing.
LONG LIFETIME: Meeting the highest standards of the transit mixer industry. Large output bearing
fo hight torque performance and durability.
in all models reducing the need of service parts srock. Flange and mounting holes to the pedestal
are the same ones than all other main brands
COST EFFECTIVE: Helping to compete in the ready mix industry
HYDROSTATIC TRANSMISSIONS/HYDRAULIC PMUP&MOTOR
Complete line of the NEW hydraulic pumps, motors and spare parts. Hydraulic Pumps & Motors EpTM
TOP QUALITY: Best materials and advanced workmanship. Well and thru decades proven classics in
the Transit Mixer Hydrostatic Drives
COSTS SAVINGS: BRAND NEW product at a low costs NO MORE CORE HASSLES !
INTERCHANGEABILITY: EpTM Series pumps, motors & spare parts are completely interchangeable
with SAUER-SUNDSTRAND * series 20, size 20 to 27.
NOWTHERE IS NO NEED TO SWITCH FROM A PROVEN HIGH QUALITY HYDROSTATIC TRANSMISSION
Please, refer to our detailed Catalogue, for further details
All manufacturers names, numbers and descriptions are used for reference only. It is not implied that any part listed is the part of any particular
manufacturer Sauer/Sundstrand is a registered trademark of Sauer/Sundstrand Company Iowa/Neuminster
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Page No. 1
AXIAL PISTON PUMPS SERIES 20 ........................... .............................. .............................. ......................... 2
GENERAL DESCRIPTIONS ...................................................................................................................... 2
FEATURES .................................................................................................................................................. 3
TECHNICAL DATA ........................... .............................. .............................. ............................... ............... 4
SERVO DISPLACEMENT CONTROL (LINEAR RESPONSE) ................................................................... 6
REVERSING TIME ...................................................................................................................................... 7
DIMENSIONS .................... ..................... ..................... ...................... ....................................................... 8
TYPE DESIGNATION .............................. .............................. .............................. ............................... ...... 11
TYPES OF CONTROLS ............................ .............................. .............................. ............................... ...... 12
SPARE PARTS ............................................................................................................................................13
AXIAL PISTON FIXED MOTORS SERIES 20 ............................................................................................ 14
GENERAL DESCRIPTIONS ........................................................................................................................14
FEATURES .......................... .............................. .............................. .............................. .............................. 15
TECHNICAL DATA ............................ .............................. .............................. ................................ ............ 16
DIMENSIONS ............................................. .................................................... .......................................... 17
MANIFOLD ASSY ............................ .............................. .............................. ............................... .............. 20
TYPE DESIGNATION .......................... .............................. .............................. ............................... .......... 21
SPARE PARTS ............................................................................................................................................. 22
AXIAL PISTON VARIABLE MOTOR SERIES 20 ......................................................................................... 23
TYPE DESIGNATION ................................................................................................................................. 23
CONCRETE MIXER REDUCERS SERIES PM .............................................................................................. 24
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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General description
Axial piston variable displacement pumps, Series 20,are of swash plate construction with variableflow capability suitable for hydrostatic transmissions with closed circuit.The flow rate is proportional to the pump`s driven speed displacement, which ,in turn ,is determined bythe swash plate angle .The latter is infinitely adjustable between zero and maximum displacementFlow direction is reserved by tilting the swash plate to the opposite side of the neutral or zerodisplacement position.
Figure :
Page No. 2
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Upon release of the control handle, the swash plate automatically returns to the null position and theflow becomes zero.High case pressures can be achieved without leakage even at the lowest temperatures by usingsuitable shaft seals.The servo valve arrangement offers the facility to incorporate function regulators and remote controlsystems. Axial piston units are designed for easy servicing , complete dismantling and disassembly
can be carried out with standard hand tools , and all components or sub assemblies are replaceable.
Figure 2 shows schematically the function of hydrostatic transmission using an axial piston variabledisplacement pump and fixed displacement motor.
Page No. 3
Features
Axial piston variable displacement pumps, Series 20, are well engineered and easy handle.The full length shaft with a highly efficient tapered roller bearing arrangement offers a high loadingcapacity for external radial forces.Additional pumps can be built on.The hydro mechanical servo displacement control maintains the selected swash plate position andhence pump displacement.
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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+ for higher speeds contact our Application department
Figure 3. External drain fluid lossfor frame sizes 20 23Determination of nominal pump size
Vg . n . vQe = - ( l/min )
1000
15,9 . Vg . pMe = - ( Nm )
100 . mh
Mg . n Qe . pPe = - =
9550 600 t
Vg displacement ( cm3
) per revolutionp difference high and low pressure( MPa )n speed ( min
1)
v volumetric efficiency
mh mechanical hydraulic efficiencyt total efficiency
Page No. 4
Frame sizeDimension
20 21 22 23 24 25 26 27
Max. displacement perrevolution of the variabledisplacement pump
cm3
33,3 51,6 69,8 89,0
12,3 12,3 18,8 32,8 32,8 65,518,03 18,03
118,7 165,8 227,3 333,7
119,54 159,96 196,14 230,51 278,94 348,18 429,59 557,28
3590 3100 2810 2590 2350 2100 1890 1670
45 55 63 78 124 164 212 270
Max. flow dm3min
-1
Displacement per revolution ofthe charge pump
cm3
Max. pressure MPa 35
Nominal pressure MPa 21
Max. pressure of control MPa 3,5Charge pressure MPa 0,8 2,0
Max. pressure in case MPa 0,25 continuous 0,5 intermittent
Maximum speed + min-1
Minimum speed min-1
500
Nominal speed min-1
1500
Kinematic viscosity rangeof working fluid-starting-operating-optimum
mm2s
-11000
12-60025-35
Kind of working fluid mineral oil
Operating temperature C -40 to + 50Max. temperature of workingfluid in tank
C 80
Purity of working fluid m 10
Direction of shaft rotation clockwise or counter clockwise
Maximum swash plate angle 18
Weight kg
Technical data
Table 1:
AXIAL PISTON PUMPS SERIES 20
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EXAMPLES OF CURVES DEPENDENCES OF EFFICIENCY ,FLOW AND OUTPUT ON THE SPEED.
( for operating condition of 18 swash plate angle )
For frame size 20 For frame size 22
For frame size 23
v volumetric efficiency
t total efficiency
Page No. 5
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Servo Displacement Control ( linear response )
Regulated by the control handle on the servo valve , the swash plate can be infinitely varied in bothdirections with the help of the servo system.The pump displacement resulting from any control handle position can be established usingfigures ( 5a 5c ). The angle of the control handle for stroke initiation and for the final position of thestroke can vary from unit to unit within the range of the tolerance band ( Figure 5a- 5c) .
Frame size 20
Frame size 22
Frame size 23
Page No. 6
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Reversing Time
Time for the directional change of the flow from Q max across 0 to Q max depending on the size of thecontrol orifice fitted in the supply port to the servo valve ( figure 7 ).
The values given assume movement of the control handle directly from one end position to other .
Adjustment time of handle: < minimum reversing timeOperating pressure: 21 MPaSpeed: 1450 min
-1
Viscosity: 35 mm2.s
-1
Schematic diagram of servovalve withAlternative orifice position
Servo valve counterbored recessed forOrifices insert
The reversing time in one flow direction can be extended by inserting an orifice in one of the pilot portsonly.
Table 2.
Page No. 7
0,761,05
1,60without orifice
0,76
1,051,60
without orifice
0,76
1,051,60
without orifice
0,76
1,05
1,60without orifice
20
21
22
23
Frame
sizeDiameter of orifice
(mm)
Reversing time
(s)
3,782,16
1,140,60
6,063,42
1,740,96
4,142,34
1,200,66
6,24
3,54
1,801,02
0,761,051,60
without orifice
0,761,051,60
without orifice
0,761,051,60
without orifice
0,761,05
1,60without orifice
24
25
26
27
Framesize
Diameter of orifice(mm)
Reversing time(s)
10,205,822,881,68
11,585,923,121,86
29,7016,207,503,78
30,9015,72
7,805,64
AXIAL PISTON PUMPS SERIES 20
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Table 3. Dimensions / mm /
Dimensions
Page No. 8
Framesize
A A1 B B1 B2 B3 C D D3 D4 D5 EF
+-0,4G
20 190 146 47.6 112,7 100 122 56 15 163
21 191 146 48 124 110 131 70 15 172
22 194 194 48 133 113 135 83 15 172
23 194 194 49 150,8 123,8 14656 162 127
-0,00584
90 15 190,4
24 213 204 70 167 132 153 75 229 152,4 98 133 21,3 213
25 286 254 80 174 142 162 317,5 165,1 98 160 21,3 260
26 285 240 81 197 153 174 317,5 165,1 110 180 21,3 287,4
27 300 274 86 212 172 19377
350 177,8 114
25,4
208 27,7 317,4
Framesize
G1 H H1 H2 H3 L L1 L2 S M N R1 S1
20 81,03 340 270 284 352 224 161,2 93,7 94,7 55,6 68 100
21 86 358 282 301 367 246 174 106 108,7 65 68 107
22 86 381 311 314 381 256 188 119 112,7 68,3 68,3 111
23 95,2 395 320 327 395 270 194 127 127,6 77,8 68,3 117
24 106,5 498 377 412 510 318 239 169 146 87,3 76 148
25 130 560 423 457 560 366 264 196 153,7 97 76 171
26 143,7 584 451 486 614 388 283 215 170,3 108 76 162
27 158,7 656 475 578 656 433 311 244
19-0,25
187,2 127 76 198
Framesize
T U V V1 V3 X Y Z W d d1 f
20 152 113 115,9 159 3 321 160 122 128,6 152 6,35 6,35
22 165 123 128,6 146 9,5 9,5
34,5-0,17
16
2319
171 134 139,8 140 12,7 12,7 37,68-0.18
M10 5 H
17,5
24 186 154 152,3 173 14 14
3/8-16UNC-2B
25 199 175 165,1 219 16 16
26 201 214 167,4 235 14,3 16,344,03
M14 5 H
23,5
27
9,4+0,2
21
225 216 190,5 246 17,5 17,5
5/8-11UNC-2B
64,66 M16 25
Framesize
e h1 h2 k l l1 m n
20 62 51,16
21 68 54
22 71,4 60,5
23 77,7 65
4812,5
min20
24 88,5 68,2 12,45 3052,4 26,2
25 98 74 30
26 100 79,4 36,7
27
6,73
116 95,367 15,6
30
45o
79,4 36,5
H with charge pump 12cm
3
(sizes 20-23), 33 cm3
(size
25)
H3 with charge pump 18cm
3
(sizes 20-23), 33 cm3
(size24), 66 cm
3(size 25)
Framesize
Port A and BP1,2drain
Port Rgear pump
M1, M2,Z2
20 -24SAE flange, 3000 psi
4 threads, 3/8-16 UNC-2B, 18 deep 7/8-14 UNF-2B 7/8-14 UNF-2B
25 15/16
12 UN-2B 15/16
12 UN-2B
26 15/16
12 UN-2B
27
SAE flange, size 11/2
4 threads, 6000 psi, 5/8-11 UNC-2B,35 deep
1 7/8-12 UNF-2B
SAE straightthreads
O ring boss
SAE flange,size 1 1/4,3000 psi, 4 threads
7/16-14 UNC-2B
7/16-20 UNF-2B,
SAE straight
threadO-ring boss
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Figure. 8 Outline drawing for axial piston variable displacement pumps, Series 20,frame size 20-23.
Deviating control lever of servo valve in direction:A: Causes high pressure in A orifice in clockwise pump
Causes high pressure in B orifice in counter clockwise pumpB: Causes high pressure in B orifice in clockwise pump
Causes high pressure in A orifice in counter clockwise pump
B
15
HH1
LL 1
XS1
BP2
n
R
D5
Wh2
m
h1
h1
ck
I1
d2
d
D4
D3
I
E
e
S
ZERO POSITION
OIL DRAINAGE
B A L 2H2
Page No. 9
a
G
Z1 M1B1
V3
B2B3
+0,8-0,3
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Dimensions /mm/:
Frame size A B C D-0,1 E-0,1 F H J
20-24 81 70 35 52,4 26,2 3/816 UNC-2A Was
s
her 10,2 22,5
25-27 112 95 46 79,4 36,5 5/811 UNC-2A Wa her 16 30
Dimensions /mm/:
Frame size A B C D-0,1 E-0,1 F H J
25-27 112 95 65 79,4 36,5 5/811 UNC-2A Washer 16 30
20-24 81 70 40 52,4 26,2 3/816 UNC-2A Washer 10 22,5
Frame size K L M-0,1 N-0,1 O P + 0,2 U
25 27 38 50 12,6 2,8 53,90,01 4 V6-158
20 24 28 38 8 2,8 39,70,05 4 V5-104
Note:Flange according to SAE J 518 c
Frame size 20 24: size 1, 5000 psi, torque for screw tightening 3/8 16 UNC2A: 37 42 NmFrame size 25 27: size 1 1/2, 6000 psi, torque for screw tightening 5/8 11 UNC2A: 158 181 Nm
Figure 9: Hose flange
Firuge 0: Flange for piping
Page No. 10
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Page No. 11
Reversible
33,3
51,6
69,889,0
118,7165,8
227,3333,7
Special
R
A
other
B
C
D
F
21,80
Type designation
NN
AA
BA
CA
20
21
22
23
24
25
26
27
F 40 64,66
18,85 cm3
65,5 cm3
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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Types of controls
Page No. 12
AXIAL PISTON PUMPS SERIES 20
CLOSED CIRCUIT
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To enquiry for spare parts, please specify the following :
- position number according to explosion view- name of the part
- size of pump or motor (PV or MF 20,21,22,23,24,25,26,27)- quantity required
Page No. 13
Spare Parts
Item Pcs Name Item Pcs Name Item Pcs Name
1 1 Servovalve Assembly 32 2 Spring Guide 63 4 Pin2 1 Charge Pump CW 33 1 Shim 64 1 Drive Screw3 2 Servo Cylinder 34 2 Washer 65 1 Pin4 2 Servo Piston 35 1 Orifice 66 4 Pin5 1 Front Cover 36 1 Spacer 67 1 Retaining Ring6 1 Pump Housing 37 1 Control Handle 68 2 Retaining Ring7 1 End Cap 38 3 Loop 69 8 Retaining Ring8 1 Swash Plate 39 2 Cap 70 1 O- Ring9 2 Check Valve 40 1 Brand plate 71 2 O- Ring
10 1 Cylinder Barrel Housing 41 1 Control Valve Gasket 72 1 O- Ring11 9 Piston Assembly 42 1 Charge Pump Gasket 73 2 O- Ring12 1 Bearing Plate 43 2 Shim Pack 74 2 O- Ring13 1 Retainer Guide 44 1 End Cap Gasket 75 2 O- Ring14 1 Slipper Retainer 45 1 Front Cover Gasket 76 4 O- Ring15 1 Spring Retainer 46 Not used 77 1 Main shaft bearing
16 1 Spring Seat 476
(8*)Seal Spring 78 1 Shaft bearing
17 1 Spring Guide 48 2 Servo Spring 79 2 Swashplate bearing
18 1 Bearing Plate Pilot 49 1 Nut 80 20 Washer19 1 Pin 50 3 Plastic Plug 81 13 Washer20 1 Cylinder Barrel Spring 51 1 Plug 82 1 Washer21 6 Retainer Spring 52 4 Expander 05 83 4 Drive Screw22 1 Retaining Ring 53 1 Expander 09 84 6 Washer23 1 Thrust Plate 54 9 Hex Head Screw 85 1 Link Swahsplate
24 1Valve Plate CWValve Plate CCW
55 4 Hex Head Screw 86 4 Socket Head Screw
25 2 Trunnion 56 Not used 87 2 O- Ring26 1 Seal Retainer 57 8 Hex Head Screw 88 Not used27 1 Rotating Seal 58 3 End Cap Screw 89 4 Hex Head Screw28 1 Stationary Seal 59 5 End Cap Screw 1 Cylinder barrel set29 1 Drive Shaft 60 2 Screw 1 Set of gaskets30 2 Servo Link 61 6 Hex Head Screw 1 Shaft sealings set31 2 Sleeve Retainer 62 1 Pin
AXIAL PISTON PUMPS SERIES 20
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General Description
Axial piston fixed displacement motors, Series 20, are of swash plate construction with presetdisplacement, and are intended for closed circuit operation.The output speed is proportional to the flow rate of the input fluid.The output torque is proportional to the differential between high and low pressure sides of the fluidcirucit.The direction of motor (output) shaft rotation depends upon which port the fluid enters the motor.
Figure :
Page No. 14
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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Figure 2:
Figure 2 shows schematically the function of a hydrostatic transmission using an axial piston variabledisplacement pump and a fixed displacement motor.
Page No. 15
Features
Axial piston fixed displacement motors, Series 20, are well-engineered and easy to handle.
The full-length shaft with a highly efficient tapered roller bearing arrangement offers a high loadingcapacity for external radial forces.
High case pressures can be achieved without leakage even at the lowest temperatures by usingsuitable shaft seals.
The modular construction of the units simplifies the production of a wide variety of model options whilelimiting the number of different components involved.
Light weight, short versions available on request.
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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+ for higher speeds contact our Application department
Figure 3. External drain fluid lossfor frame sizes 20 23
VM . n . vQe = - ( l/min )
1000
15,9 . VM . pMe = - ( Nm )
100
mh
Mg . n e . pPe = - =
9550 600
t
VM displacement ( cm3
) per revolutionp difference high and low pressure( MPa )n speed ( min
1)
v volumetric efficiency
mh mechanical hydraulic efficiencyt total efficiency
Frame sizeDimension
20 21 22 23 24 25 26 27
Max. displacement perrevolution of the fixed motor
cm3
33,3 51,6 69,8 89,0
12,3 12,3 18,8 32,8 32,8 65,518,03 18,03
118,7 165,8 227,3 333,7
119,54 159,96 196,14 230,51 278,94 348,18 429,59 557,28
3590 3100 2810 2590 2350 2100 1890 1670
30 35 40 47 70 124 152 197
Max. flow dm3min
-1
Displacement per revolution ofthe charge pump
cm3
Max. pressure MPa 35
Nominal pressure MPa 21
Max. pressure of control MPa 3,5Charge pressure MPa 0,8 2,0
Max. pressure in case MPa 0,25 continuous 0,5 intermittent
Maximum speed + min-1
Minimum speed min-1
500
Nominal speed min-1
1500
Kinematic viscosity rangeof working fluid-starting-operating-optimum
mm2s
-11000
12-60025-35
Kind of working fluid mineral oil
Operating temperature C -40 to + 50Max. temperature of workingfluid in tank
C 80
Purity of working fluid m 10
Direction of shaft rotation clockwise or counter clockwise
Maximum swash plate angle 18
Weight kg
Technical data
Table 1:
Motor input flow
output
. Q
torque
outputpower
(kW )
.
Page No. 16
AXIAL PISTON FIXED MOTORS SERIES 20
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Table 2: Dimensions /mm/
Framesize
A C C1 D D1 D2 D3 D4 D5 F H
20 15,71,5 56 190 162 146 140 127- 0,05 108 25,4 15+0,8 -0,3 340
21 15,71,5 56 190 162 147 154 127- 0,05 108 25,4 15+0,8 -0,3 360
22 15,71,5 56 194 162 194 161 127- 0,05 108 25,4 15+ 0,8 -0,3 380
23 17,21,5 56 194 162 194 180 127- 0,05 108 25,4 15+0,8 -0,3 395
24 25 75 214 229 204 200 152,4-0,05 121 25,4 21,3+0,8-0,3 442
25 25 77 285 317,5
317,5
254 230 165,1-0,05 127 36,5 20,5+ 0,8-0,3 542
26 27 77 281 273 271,5 165,1-0,05 127 36,5 20,6+0,8-0,3 57227 38 77 298 350 298 292 177,8-0,05 140 36,5 27 603
Framesize
H1 H2 H3 H4 H5 H6 K P1,P2,P3 R R1 R2 U2
20 36 252 315 277 11 25 214 88,7 82 18 19
21 36 270 354 295 32 235 97 88 18 19
22 36 291 382 315
6 44
9
30 255,3
7/8-14 UNF-2B
108 98 18 1923 36 306 400 331
12272,3 117 107 18 19
24 362 481 388,7 305 125 109 21
25 387 524 442,5 330 136,5 136 2126 410 547 346 139,7 152 21
27 447 588 483,5 387 154 161 21
Framesize
U1 W b B1 d d1 h H1 k
20 82,5 34,5-0,17
227/8-14UNF-2B 3/8-16UNC-2B
5/8-11UNC-2B
172 86
171
162
34,5-0,17 M10
103
87 48
23 192 96 37,68-0,18 M10 115 96 48
24 214 107 44-0,18 M14 100 67
25 260 130 44-0,1844-0,18
M14 124 6726 292 146 M14 170 138 67
27 317 159 64,7-0,18 M16 183 146 67
Framesize
I I1 x z m n x1, x2, x3
20
21
222324
12,5 0,2 min.20 156 450
52,4 26,2
25 16 0,2 min.30 219 450
79,4 36,5
26 16 0,2 mi
i
i
i
i
n.30 228,5
7/8-14UNF
UN
-2B
-2B15/16-12 450
79,4 36,5
12,5 0,2 m n.20 170 450
52,4 26,2
12,5 0,2 m n.30 175 450
52,4 26,2
12,5 0,2 m n.20 160 450
52,4 26,2
12,5 0,2 m n.20 165 450
52,4 26,2
7/16-20 UNF 2B
27 16 0,2 min.40 278 45
0
79,4 36,5
M10 71 4821 85,8 34,5-0,17 M10 76 48
100,6
Page No. 17
AXIAL PISTON FIXED MOTORS SERIES 20
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Figure 4: Outline drawing motor configuration with manifold assy.
Page No. 18
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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Dimensions /mm/:
Frame size A B C D-0,1 E-0,1 F H J
20-24 81 70 35 52,4 26,2 3/816 UNC-2A Was
s
her 10,2 22,5
25-27 112 95 46 79,4 36,5 5/811 UNC-2A Wa her 16 30
Dimensions /mm/:
Frame size A B C D-0,1 E-0,1 F H J
25-27 112 95 65 79,4 36,5 5/811 UNC-2A Washer 16 30
20-24 81 70 40 52,4 26,2 3/816 UNC-2A Washer 10 22,5
Frame size K L M-0,1 N-0,1 O P + 0,2 U
25 27 38 50 12,6 2,8 53,90,01 4 V6-158
20 24 28 38 8 2,8 39,70,05 4 V5-104
Note:Flange according to SAE J 518 c
Frame size 20 24: size 1, 5000 psi, torque for screw tightening 3/8 16 UNC2A: 37 42 NmFrame size 25 27: size 1 1/2, 6000 psi, torque for screw tightening 5/8 11 UNC2A: 158 181 Nm
Figure 9: Hose flange
Firuge 0: Flange for piping
Page No. 19
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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Manifold assy
Manifold assy consist of control elements that serve to restrict working pressure in the high pressurehydrostatic circuit, to exchange the heated working fluid in closed hydrostatic circuit, to charge thevolume losses in closed hydrostatic circuit, to charge the volume losses hydrostatic circuit as well tosecure rinsing of transmission case.
Manifold assy with by-pass valve
Manifold assy with by-pass valve secures all the functions as manifold assy. On the back side there isa built-in by-pass valve designed for interconnection of high pressure lines in closed hydrostatic circuit.
Page No. 20
AXIAL PISTON FIXED MOTORS SERIES 20
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MotorFixed
Manifold assy
Pressure setting of low-pressure valve in the manifold assy
Pressure setting in port A
11 1,1 MPa ( 1,1 0,05 MPa at 3,8 dm3.min-1)
11 MPa11
14
35
4042
14 MPa
35 MPa
40 MPa
42 MPa
00 Without pressure valve
Pressure setting in port B
11 MPa11
14
35
40
42
14 MPa
35 MPa
40 MPa
42 MPa
00 Without pressure valve
13 1,3 MPa ( 1,3 0,05 MPa at 3,8 dm3.min-1)
16 1,6 MPa ( 1,3 0,05 MPa at 3,8 dm3.min-1)
00 without manifold assy
Manifold assy with by-pass valve
Manifold assy without by-pass valve
Without manifold assy with cover plate
Without manifold assy with by-pass valve
Without manifold assy
Special
R
F
A
B
C
D
N
MF
MF
3.
6.
21,80
Type designation
Page No. 21
40 64,66
20
21
22
23
24
25
26
27
33,3
51,6
69,8
89,0
118,7
165,8227,3
333,7
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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Item Pcs Name Item Pcs Name Item Pcs Name
1 1 Manifold Assy 35 MPa 19 1 Seal Retainer 37 1 Drive Screw
2 1 Motor Housing 20 1 Rotaling Seal 38 1 Pin
3 1 End Cap 21 1 Stationary Seal 39 1 Pin
4 1 Swash Plate 22 1 Drive Shaft 40 2 Pin
5 1 Cylinder Barrel Housing 23 1 Shim 41 1 Retaining Ring
6 9 Piston Assembly 24 1 Loop 42 1 O- Ring
7 1 Bearing Plate 25 2 Cap 43 1 O- Ring
8 1 Retainer Guide 26 1 Not used 44 2 O- Ring
9 1 Slipper Retainer 27 1 End Cap Gasket 45 1 O- Ring
10 1 Spring Retainer 28 Not used 46 1 Bearing
11 1 Spring Seat 29 6 Seal Spring 47 1 Bearing
12 1 Spring Guide 30 1 Plug 48 8 Washer
13 1 Bearing Plate Pilot 31 1 Plug 49 6 Washer
14 1 Pin 32 1 Hex Head Plug 50 4 Drive Screw
15 1 Cylinder Barrel Spring 33 6 Hex Head Screw 51 2 O- Ring
16 6 Retainer Spring 34 4 End Cap Screw 52 1 Washer
17 1 Retainer Ring 35 3 Hex Head Screw 1 Cylinder barrel set
18 1 Valve Plate 36 Not used 1 Set of gaskets
1 Shaft sealings set
To enquiry for spare parts, please specify the following :
- position number according to explosion view- name of the part- size of pump or motor (PV or MF 20,21,22,23,24,25,26,27)- quantity required
Page No. 22
Spare Parts
AXIAL PISTON FIXED MOTORS SERIES 20
CLOSED CIRCUIT
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Page No. 23
Type designation
2 3XX XXX
1.MV
12.
2.
22 23 11.
A
3. B
C
D
E
N
1
2 3
4
5
6
7
0
10.
21
28
35
40
42
45
48
52
4. 20 22 23
A - 9. Pressure setting in port AB 21
C 28
D - - 35 E - - 40 F - - 42 G - - 45 I - 48 J - - 52 K
L -M - - 8.P - 11 X 13
16
00
5. 20 22 23 Other values according to mutual agreement.
A
B 7.
C 20 22 23
07 12,45 26,38 33,59
08 14,26 30,15 38,51
6. 09 16,06 34,09 43,26
A 10 18,03 37,85 48,18
B 11 19,83 41,79 53,26
12 21,63 45,72 58,17
- available 13 23,6 4 9,6 5 63 ,25 - 14 25,4 5 3,5 9 68 ,17
AAA
13 teeth, 16/32 PITCH, 21,805
19 teeth, 16/32 PITCH, 31,75
21 teeth, 16/32 PITCH, 34,50
23 teeth, 16/32 PITCH, 37,68
27 teeth, 16/32 PITCH, 44,03
1
- on request
X
- pressure value 20 Mpa
- electric control; voltege 24V=; Dn 6 mm
- empty
- electric control; voltege 12V=; Dn 6 mm
AUTOMATIC
9
X
- standard
- without the mechanical -hydraulic servo valve,
with top cover only
RPx
- pressure value 25 Mpa
2
3
4
5
- automatic control - constant pressure
0
4
2
XX
MHx
0
MECHANICAL - HYDRAULIC
X
WHITOUT CONTROLS DEVICE
20
-three positional distributor (non-continuous)
MV
Motor
variable
TYPES OF CONTROLS
Displacement
Vgmax [cm3]
without orifice
orifice in channel "P","A","B"
orifice in channel "A"
8
7
6
- pressure value 5 Mpa
- pressure value 10 Mpa
- pressure value 15 Mpa
- pressure value 30 Mpa
15 teeth, 16/32 PITCH, 25,40
13 teeth, 8/16 PITCH, 43,71
20 teeth, 16/32 PITCH, 33,91
cone 1:8, SEA J501, 41,27
cone 1:8, SEA J501, 31,75
Dimension of the input shaft
8XX
parallel with key 34,925;
- mechanical -hydraulic servo valve
ELECTRICAL - HYDRAULIC
Erx
- pressure value 35 Mpa
- pressure value 40 Mpa
1
14
special design on request
28 Mpa
35 Mpa
40 Mpa
42 Mpa
45 Mpa
48 Mpa
Manifold assy with by-pass valve
Manifold assy without by-pass valve
standard design
765
ISO 6162, DIN25, type II, 40 MPa M 12
Manifold assy
1
7/16"-14 UNC-2B
14 teeth, 12/24 PITCH, 31,20
XX9
XX XX10
BBB-without the mechanical-hydraulic servo valve,
with D18 joining piece and cover
without orifice
orifice in channel "P"
1,36 mm
Orifice
12XXX
11
Special production
number "000"
0,76 mm
0,91 mm
1,05 mm
orifice in channel "B"
orifice in channel "P","A"
1.6 mm
28 Mpa
21 Mpa
orifice in channel "A","B"
52 Mpa
orifice in channel "P","B"
Pressure setting in port B
21 Mpa
35 Mpa
40 Mpa
42 Mpa
48 Mpa
SEA J518c , code 61, size 1", 5000PSI 3/8"-16 UNC-2B
Pressure setting of low-pressure valve in the manifold assy
1,1MPa (1,10,05 Mpa at 3,8 dm3.min-1)
1,3MPa (1,30,05 Mpa at 3,8 dm3.min-1)
FRAME SIZE
SEA J518c , code 62, size 1", 6000PSI
Dimension of high pressure ports Thread
parallel with key 44,45;
1,6MPa (1,60,05 Mpa at 3,8 dm3.min-1)
without manifold assy
45 Mpa
10
The minimum inclination angle of the swashplate
Displacement in cm3
52 Mpa
11
12
13
7
8
9
AXIAL PISTON VARIABLE MOTORS SERIES 20
CLOSED CIRCUIT
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MODEL PARAMETER PM60 PM60 WP PM70 PM70 WP PM80 PM80 WP
Gear ratio 1:96,2 1:96,2 1:138,7 1:138,7 1:138,7 1:138,7
Input speed rpm 1100 -1350 1100 -1350 1400-1900 1400-1500 1400-1900 1400-1500
Drum speed rpm 11-14 11-14 11-14 11-14 11-14 11-14
Max. drum driving moment :
with hydraulic motor 70cm3/rev. kNm 42 42 - - - -
with hydraulic motor 90cm3/rev. kNm 54 54 70 70 78 80
Max. drum volume with HM70 m3 7 7 - - - -
Max. drum volume with HM90 m3 9 9 10 10 15 15
Hydraulic motors teeth number - 21 21 21 21 21 21
Water pump gearing - - 2,333 - 2,333 - 2,333
Max. speed of water pump rpm - 3150 - 3500 - 3500
Max. power of water pump l/min. - 500 - 600 - 600
Oil quantity up to eye-sight l (Liter) 7 7 8 8 8 8
Oil viscosity ISO VG 320 (CLP oil DIN 51517/3)
Oil quality ref. AH408.802. 990-001 EN
Sound pressure level dB(A) 75 75 82 82 82 82
Weight Kg 275 280 290 295 292 297
Ordering example : PM60 reducer without water pump drive PM60 WP - reducer with water pump drive
CONCRETE MIXER SPEED REDUCERS(PLANETARY GEAR BOXES)
Ep Series
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5
CONCRETE MIXER SPEED REDUCERS(PLANETARY GEAR BOXES)
Ep Series
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Page No. 27
CONCRETE MIXER SPEED REDUCERS(PLANETARY GEAR BOXES)
Ep Series
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assemblyangle
outletforh
ydraulic
motor21teeth
fixationscre
wM12x20
oilcontrol
gauge
sealO
ring
124x4
oiloutletplu
g
outletplu
g
fillingplug
pouringplug
530h9
20
406
187
20
190
518
14
12,500
79,500
127H7
31.75H11
17
LK500/24x15
40
54
/248.68
/
2
3
40
3
3
15
18
118,500
33
53
67
36
.3
153
110
70
460
460
200
200
200
200
70
162
8
8
DIMENSIONDRAWING
CONCRETE MIXER SPEED REDUCERS(PLANETARY GEAR BOXES)
Ep Series
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