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Home>Products>Hydraulic Piston Pump/Motor>R902137627 A2FE125/61W-VAL100 Germany Origin Rexroth Axial Piston Motor A2FE Series
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R902137627 A2FE125/61W-VAL100 Germany Origin Rexroth Axial Piston Motor A2FE Series
- Rexroth
R902137627 A2FE125/61W-VAL100
- Germany
- CE ISO
- Negotiation
- contact us
- standrd package
- 5-7 work day
- T/T,Western Union
- 50 pcs
-
Loyal Bearing Co.Ltd2020-07-10 09:46:19
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Product Description
Product Description
R902137627 A2FE125/61W-VAL100 Features:
- Space-saving construction due to recessed mounting flange
- Easy to install, simply slide into the mechanical gearbox
- High power density
- Very high total efficiency
- High starting efficiency
- Optional with integrated pressure relief valve
- Optional with mounted addifitonal valve: counterbalance valve (BVD/BVE), flushing and boost-pressure valve
- Bent-axis design
R902137627 A2FE125/61W-VAL100 Technical data:
| Size | 28 | 32 | 45 | 56 | 63 | 80 | 90 | 107 | 125 | 160 | 180 | 250 | 355 | |||
| Displacement | Vg | cm³ | 28.1 | 32 | 45.6 | 56.1 | 63 | 80.4 | 90 | 106.7 | 125 | 160.4 | 180 | 250 | 355 | |
| Nominal pressure | pnom | bar | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 350 | 350 | |
| Maximum pressure | pmax | bar | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 400 | 400 | |
| Maximum speed | nnom 1) | rpm | 6300 | 6300 | 5600 | 5000 | 5000 | 4500 | 4500 | 4000 | 4000 | 3600 | 3600 | 2700 | 2240 | |
| nmax 2) | rpm | 6900 | 6900 | 6200 | 5500 | 5500 | 5000 | 5000 | 4400 | 4400 | 4000 | 4000 | ||||
| Inlet flow 3) | at nnom | qV | l/min | 177 | 202 | 255 | 281 | 315 | 362 | 405 | 427 | 500 | 577 | 648 | 675 | 795 |
| Torque 4) | at pnom | M | Nm | 179 | 204 | 290 | 357 | 401 | 512 | 573 | 679 | 796 | 1021 | 1146 | 1393 | 1978 |
| Rotary stiffness | c | kNm/rad | 2.93 | 3.12 | 4.18 | 5.94 | 6.25 | 8.73 | 9.14 | 11.2 | 11.9 | 17.4 | 18.2 | 73.1 | 96.1 | |
| Moment of inertia for rotary group | JTW | kg·m² | 0.0012 | 0.0012 | 0.0024 | 0.0042 | 0.0042 | 0.0072 | 0.0072 | 0.0116 | 0.0116 | 0.022 | 0.022 | 0.061 | 0.102 | |
| Maximum angular acceleration | ɑ | rad/s² | 6500 | 6500 | 14600 | 7500 | 7500 | 6000 | 6000 | 4500 | 4500 | 3500 | 3500 | 10000 | 8300 | |
| Case volume | V | l | 0.2 | 0.2 | 0.33 | 0.45 | 0.45 | 0.55 | 0.55 | 0.8 | 0.8 | 1.1 | 1.1 | 2.5 | 3.5 | |
| Weight (approx.) | m | kg | 10.5 | 10.5 | 15 | 18 | 19 | 23 | 25 | 34 | 36 | 47 | 48 | 82 | 110 | |
| 1) | These values are valid at: - for the optimum viscosity range from vopt = 36 to 16 mm2/s - with hydraulic fluid based on mineral oils |
| 2) | Intermittent maximum speed: overspeed for unload and overhauling processest, t |
| 3) | Restriction of input flow with counterbalance valve |
| 4) | Torque without radial force, with radial force see table "Permissible radial and axial forces of the drive shafts" |
Note
- The values in the table are theoretical values, without consideration of efficiencies and tolerances. The values are rounded.
- Exceeding the maximum or falling below the minimum permissible values can lead to a loss of function, a reduction in operational service life or total destruction of the axial piston unit. Other permissible limit values, such as speed variation, reduced angular acceleration as a function of the frequency and the permissible angular acceleration at start (lower than the maximum angular acceleration) can be CONTACT US.
-
Speed range
No limit to minimum speed nmin. If uniformity of motion is required, speed nmin must not be less than 50 rpm.
Determining the operating characteristics
Inlet flow
[l/min]
Rotational speed
[rpm]
Torque
[Nm]
Power
[kW]
Key
Vg
Displacement per revolution [cm3]
Δp
Differential pressure [bar]
n
Rotational speed [rpm]
ηv
Volumetric efficiency
ηhm
Hydraulic-mechanical efficiency
ηt
Total efficiency (ηt = ηv • ηhm)
-
Viscosity
Shaft
sealTemperature1)
Comment
Cold start
νmax ≤ 1600 mm²/s
NBR2)
ϑSt ≥ -40 °C
t ≤ 3 min, without load (p ≤ 50 bar), n ≤ 1000 rpm,
permissible temperature difference between axial piston unit and hydraulic fluid max. 25 KFKM
ϑSt ≥ -25 °C
Warm-up phase
ν = 400 … 1600 mm²/s
t ≤ 15 min, p ≤ 0.7 • pnom and n ≤ 0.5 • nnom
Continuous operation
ν = 10 … 400 mm²/s3)
NBR2)
ϑ ≤ +78 °C
measured at port T
FKM
ϑ ≤ +103 °C
νopt = 16 … 36 mm²/s
range of optimum operating viscosity and efficiency
Short-term operation
νmin = 7 … 10 mm²/s
NBR2)
ϑ ≤ +78 °C
t ≤ 3 min, p ≤ 0.3 • pnom
measured at port T
FKM
ϑ ≤ +103 °C
1) If the specified temperatures cannot be maintained due to extreme operating parameters, please contact us. 2) Special version, please contact us. 3) Equates e.g. with the VG 46 a temperature range of +5 °C to +85 °C (see selection diagram) Note
To reduce high temperature of the hydraulic fluid in the axial piston unit we recommend the use of a flushing and boost pressure valve (see chapter Extended functions and versions).
Explanatory note regarding the selection of hydraulic fluid
The hydraulic fluid should be selected such that the operating viscosity in the operating temperature range is within the optimum range (vopt see selection diagram).
Selection diagram
-
-
Filtration of the hydraulic fluid
Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit.
A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.
At a hydraulic fluid viscosity of less than 10 mm²/s (e.g. due to high temperatures in short-term operation) at the drain port, a cleanliness level of at least 19/17/14 according to ISO 4406 is required.
For example, the viscosity is 10 mm²/s at:
- HLP 32 a temperature of 73°C
- HLP 46 a temperature of 85°C
-
Operating pressure range
Pressure at working port A or B (high-pressure side)
Definition
Nominal pressure
pnom
see table of values
The nominal pressure corresponds to the maximum design pressure.
Maximum pressure
pmax
see table of values
The maximum pressure corresponds to the maximum operating pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.
Single operating period
10 s
Total operating period
300 h
Minimum pressure
pHP min
25 bar
Minimum pressure on high-pressure side (port A or B) required to prevent damage to the axial piston unit.
Minimum pressure at inlet (pump operating mode)
pE min
see diagram
To prevent damage to the axial piston motor in pump mode (change of high-pressure side with unchanged direction of rotation, e.g. when braking),a minimum pressure must be guaranteed at the working port (inlet). The minimum pressure depends on the rotational speed and displacement of the axial piston unit.
Total pressure
pSu
700 bar
The summation pressure is the sum of the pressures at both work ports (A and B).
Rate of pressure change
Definition
with integrated pressure relief valve
RA max
9000 bar/s
Maximum permissible rate of pressure build-up and reduction during a pressure change over the entire pressure range.
without pressure relief valve
RA max
16000 bar/s
Case pressure at port T
Definition
Continuous differential pressure
ΔpT cont
2 bar
Maximum averaged differential pressure at the shaft seal (case to ambient)
Pressure peaks
pT peak
10 bar
t
Note
- Working pressure range valid when using hydraulic fluids based on mineral oils. Values for other hydraulic fluids, please contact us.
-
Minimum pressure at inlet (pump operating mode)
-
-
This diagram is only valid for the optimum viscosity range of vopt = 16 to 36 mm2/s
Please contact us if these conditions cannot be satisfied.
Pressure definition
-
-
Note
- The service life of the shaft seal is influenced by the speed of the axial piston unit and the case pressure.
- The service life decreases with an increase of the mean differential pressure between the case and the ambient pressure and with a higher frequency of pressure spikes.
- The case pressure must be equal to or higher than the ambient pressure.
-
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A2FE125/61W-VZL192J-SLeader Industrial Manufacture Co.,Limited. is a professional agent of foreign brand plunger pumps and hydraulic pumps. It mainly deals in Resroth,Yuken,Daikin,Nachi,Vickers,Sumitomo,Tokimec,Uhida,Yeoshe,Dension, and other European and American brands of original oil pumps, pump cores and accessories. Leader Industrial is committed to providing professional suppliers of hydraulic machinery equipment and accessories.It is widely used in injection moulding machine, die-casting machine, oil press, ship machinery, construction machinery, concrete pump truck, mixing truck, construction machinery, rotary drilling machine, bulldozer, loader, roller, paver, crane machinery, forklift, coal mine machinery, port machinery, oil field machinery and other heavy engineering machinery series.
-
Direction of flow
Direction of rotation, viewed on drive shaft
clockwise
counter-clockwise
A to B
B to A
Loyal Bearing Co., Ltd. has been highly praised by the industry for its high quality products, excellent service and timely supply capability. Loyal Bearing Co., Ltd. wholeheartedly welcomes domestic and foreign customers, peers to call or come to discuss cooperation to create a better future!
Contact Us
- Loyal Bearing Co.Ltd
- Address38 Wang Chiu Rd Kowloon Bay Hongkong
- Phone(Working Time)00852 9518 9139
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