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Fixed Displacement motor A2F
Fixed Displacement motor A2F
Fixed Displacement motor A2F
Fixed Displacement motor A2F
Fixed Displacement motor A2F
Fixed Displacement motor A2F
  1. Fixed Displacement motor A2F
  2. Fixed Displacement motor A2F
  3. Fixed Displacement motor A2F
  4. Fixed Displacement motor A2F
  5. Fixed Displacement motor A2F
  6. Fixed Displacement motor A2F

Fixed Displacement motor A2F

1.High performance rotary pump with well-power spherical control area with the advantage; Self centering low peripheral speed, high efficiency .

2.Drive shaft capable of adopting radial loading .

3.ISO mounting flange, uniform for fixed displacement pumps/motors and variable motors

4.Mybe used in conjunction with fire-resistance fluids.

5.Low nosie generation.

Detailed description

This is a high-performance rotary pump equipped with a well-powered spherical control area, which brings three key advantages: self-centering, low peripheral speed, and high efficiency. The self-centering design ensures stable operation of the pump, avoiding deviation or wear caused by misalignment during operation; the low peripheral speed effectively reduces mechanical friction and noise, while extending the service life of internal components; the high efficiency feature minimizes energy loss, enabling the pump to convert more input power into effective hydraulic output. Its drive shaft is specially designed to be capable of adopting radial loading, which means it can bear radial forces during operation without damage or performance degradation, enhancing the pump’s adaptability to complex working conditions. It is equipped with an ISO mounting flange, which is uniform for fixed displacement pumps/motors and variable motors, ensuring good interchangeability and compatibility, facilitating installation, maintenance, and system upgrades. The pump can be used in conjunction with fire-resistance fluids, making it suitable for scenarios with high fire safety requirements, such as industrial sites with flammable and explosive risks. Additionally, it features low noise generation, thanks to its optimized structural design and low peripheral speed, creating a quieter working environment and reducing noise pollution in the operation site.

Technical Data

Inlet Operating Pressure:

Pump :

Minimum pressure at ports S, A or B: Pabs------------------0. 08MPa In closed circuits, the feed

pressure must be between 0.2MPa and 0.6MPa, depending on pump speed and viscosity of hydraulic fluid.

•Motor: Pressure at port A or B:

Nominal pressure--------------------Pn =35MPa

Peak pressure---------------------Pmax=40MPa

The sum of the pressures at ports A and B must not exceed 7OMPa

(individual pressure on either side max 40MPa)

•outlet Operating Pressure

•Pump: Nominal pressure--------------Pn=35MPa

Peak pressure--------------Pmax=40MPa

Maximum permissible case pressure(at port T):

Pabs---------------0.2MPa

•Oil Temperature Range:-25℃~80℃

•Viscosity Range

T min------------------------------------------10mm2/s

T max----------------( for short periods ) 1000mm2/s

Optimum Operating Viscosity:---------------------------16-25mm2/s

Fluid Recommendation :40 low-solidifing

•Filtration of hydraulic Fluid:

Recommended filtration 10um. Coarser filtration of 25 to40um is acceptable,However longer service life is achieved.

•Speed Range:

No limitation on minimum speed,

If high uniformity of rotation is required,nmin should not be less than 50r/min,See table on page 5 for maximum speed.

•Mounting position:

Arbitrarily Choose, the housing must be filled with oil;

•Flow direction:

Clockwise: Anticlockwise:
A to B   S toB(Open Circuit) B to A   S to A(Open Circuit)

Rear cover:

PresssurePort
Drain Port
Suction
Calculation of Size
pump: Output Flow Q=(Vg×n×ŋv)/1000 [L/min]
Intput Torque M=0.159×Vg×Δp/ŋmh [N:m]
Intput power P=(Q×Δp)/(60×ŋt) [Kw]
Motor: Input Flow Q=(Vg×n)/(1000×ŋv) [L/min]
Output Speed n=(Q×1000×ŋv)/Vg [r/min]
Output Torque M=0.159×Vg×Δp×ŋmh [Nm]
Output power P=(Q×Δp×ŋt)/60 [Kw]
Vg=max geometric displacement [ml/r]
M=torque [N.m]
Δp=differential pressure [Mpa]
n=speed [r/min]
ηv=volumetric efficiency
ηm=mechanical- -hydraulic efficiency
ηt=overall efficiency
Used for
close
system
pump.
/motor		 system 10~160 200~500
1.A,B
Thread		 6.A,B
Flange		 1. A,B Flange
2. A,B
Flange		 7.A,B
Flange
Used for
open
system
punp		 3.A,B
Flange		 5.B,S
Prick Worm		 2.B,S Flange
4.B,S
Thread

Technical Data Theoretical Values, Without Considering η m and ηV, Values rounded Off.

Size 10 12 23 28 45 55 63 80 107 125 160 200 250 355 500
Displacement Vg(ml/r) 9.4 11.6 22.7 28.1 44.3 54.8 63 80 107 125 160 200 250 355 500
Max Speed
n
max(r/min)		 Close Circuit 7500 6000 5600 4750 4500 3750 4000 3350 3000 3150 2650 2500 2500 2240 2000
Open Circuit
Inlet Pressure
(Pabs=MPa)		 0.09 4700 3750 3750 2800 2850 2360 2550 2120 1900 2120 1650 1700 1400 1250 1120
0.10 5000 4000 4000 3000 3000 2500 2700 2240 2000 2240 1750 1800 1500 1320 1200
0.15 6000 4900 4900 3600 3550 3000 3300 2750 2450 2750 2100 2180 1850 1650 1500
Max Flow
Q
max(I/min)		 Close Circuit 71 70 127 133 199 206 253 268 321 394 424 500 625 795 1000
Open Circuit
Inlet Pressure
(Pabs=MPa)		 0.09 43 42 83 76 122 125 156 165 197 257 256 330 340 430 543
0.10 46 45 88 82 129 133 165 174 208 272 272 349 364 455 582
0.15 55 55 108 98 157 159 202 213 251 333 326 423 449 568 728
Max Power
Pmax(Kw)
Δp=35MPa		 Close Circuit 41 41 74 78 116 120 147 156 187 230 247 292 365 454 583
Open Circuit
Inlet Pressure
(Pabs =MPa)		 0.09 25 25 48 44 71 73 91 96 115 150 149 192 198 251 317
0.10 27 26 51 48 75 78 96 101 121 159 159 204 212 265 340
0.15 32 32 63 57 92 93 118 124 148 194 190 247 262 331 424
Electric Motor
Speed
n=1450/min		 Flow Close
Circuit		 13.6 16.8 32.9 40.7 64.2 79.5 91.3 116 155.2 181.2 232 290 363 515 725
Q(l/min)Open
Circuit		 13.2 16.3 31.9 39.5 62.3 77.1 88.6 112.5 150.5 175.8 225 281 352 499 703
P(Kw) Close
Δp=35MPa Open		 7.9 9.8 19.2 23.7 27.4 46 53 67.7 90 106 135 169 212 300 423
7.7 9.5 18.6 23 36.3 45 51.7 66 88 1.3 131 169 212 300 423
Torque(N.m) Δp= 10MPa 15 18 36 44.7 70 87 100 127 170 199 254 318 398 564 795
Δp=35MPa 52 65 126 156 247 305 351 445 595 696 890 1113 1391 1976 2783
Approx Weight (kg) 5 5 12 12 23 23 33 33 44 63 63 88 88 138 185

Notes:

1.These values are valid provided there is an absolute pressure at suction inlet Sand when operated on mineral oil.

Permissible speed nperm can be determined from the nomograph. In motor operation the permissible speed for closed circuit system and boosted operation are also valid for open circuit system. When suction pressure Pabs > 0. 1MPa, the permissible speed can be increased in open circuits (Self-suction operation). But when suction pressure Pabs < 0.1 MPa, the permissible speed must be reduced.

Example:

Given:size 55,Drive speed 2400r/min

Required:pressure Pabs at the suction Inlet S.

Solution:Line 1 on scale nperm drawn towards size 55 crosses line H at point A .line 11 from point A to point B(open circuit) gives the result:

Pabs > 0.094MPa.

The following are always used together:

1.Scales Pabs,type of circuit and line H.

2.Line H,size scale and nperm.

Fixed Displacement motor A2F