Variable Speed Rexroth Type Piston Motor with Maximum Speed of 3900
to 6150 rpm
Features:
1. Variable motor with axial tapered piston rotary group of bent
axis design, for hydrostatic drives in open and closed circuits.
2. For use in mobile and stationary application areas.
3. The wide control range enables the variable motor to satisfy the
requirement for high speed and high torque.
4. The displacement is infinitely variable from Vg max to Vg min =
0 .
5. The output speed is dependent on the flow of the pump and the
displacement of the motor.
6. The output torque increases with the pressure differential
between the high and low pressure sides and with increasing
displacement.
7. Wide control range with hydrostatic transmission.
8. Wide selection of control devices.
9. Cost savings through elimination of gear shifts and
possibilityof using smaller pumps
10. Compact, robust bearing system with long service life.
11. High power density.
12. Good starting characteristics.
13. Low moment of inertia.
Technical data:
| Size | NG | 80 | 107 | 140 | 160 | 200 | 250 |
| Geometric displacement, per revolution | Vg max | cm3 | 80 | 107 | 140 | 160 | 200 | 250 |
| Vg min | cm3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Vg x | cm3 | 51 | 68 | 88 | 61 | 76 | 205 |
| Maximum rotational speed(while adhering to the maximum permissible
inlet flow) | at Vg max | nnom | rpm | 3900 | 3550 | 3250 | 3100 | 2900 | 2700 |
| at Vg < Vg x | nmax | rpm | 6150 | 5600 | 5150 | 4900 | 4600 | 3300 |
| where Vg 0 | nmax | rpm | 7350 | 6300 | 5750 | 5500 | 5100 | 3300 |
| Inlet flow | at nnom and Vg max | qv max | l/min | 312 | 380 | 455 | 496 | 580 | 675 |
| Torque | at Vg max and Δp = 400 bar | T | Nm | 509 | 681 | 891 | 1019 | 1273 | ‒ |
| at Vg max and Δp = 350 bar | T | Nm | 446 | 596 | 778 | 891 | 1114 | 1391 |
| Rotary stiffness | Vg max to Vg/2 | cmin | kNm/rad | 16 | 21 | 34 | 35 | 44 | 60 |
| Vg/2 to 0 (interpolated) | cmin | kNm/rad | 48 | 65 | 93 | 105 | 130 | 181 |
| Moment of inertia for rotary group | JTW | kgm2 | 0,008 | 0.0127 | 0.0207 | 0.0253 | 0.0353 | 0,061 |
| Maximum angular acceleration | α | rad/s² | 24000 | 19000 | 11000 | 11000 | 11000 | 10000 |
| Case volume | V | l | 1.2 | 1.5 | 1.8 | 2.4 | 2.7 | 3 |
| Weight approx. | m | kg | 36 | 46 | 61 | 62 | 78 | 100 |
Specifications:
Warranty | 1 Year |
Model | SY-A6VM |
Place of Origin | China |
Type | Rexroth type piston motor |
Color | Available any color |
HS Code | 8412299090 |
Application | excavator, loader, construction machinery |
| Max Speed | 6300 rpm |
Delivery Time | 15-30 Days after Payment |
MOQ | 1 Piece |
Applications:
1. Construction machinery (excavators, loaders): High torque output
and compact bent-axis design adapt to excavator operations, while
hydrostatic transmission improves energy efficiency.
2. Construction cranes: Hydrostatic transmission precisely controls
crane lifting speed, and spherical oil distribution ensures
stability under high pressure.
3. Agricultural machinery (harvesters, tractors): Extreme
temperature resistance (-40°C~115°C) suits field conditions, and
high power density improves harvester efficiency.
4. Mining equipment: Long-life bearings resist dusty environments,
and dual pressure ratings (400/450 bar) handle sudden load shocks.
5. Port machinery (gantry cranes, Reach Stacker): Low inertia
moment enables rapid gantry crane operations, and multiple flange
interfaces support port equipment integration.
Competitive Advantage:
1. High power density axial piston motor (>0.5 kW/kg) supports
heavy machinery with compact space requirements.
2. Infinitely adjustable displacement (0~Vg max) dynamically
adapts to load changes via swashplate tilt, improving energy
efficiency by 12%-18%.
3. Bent-axis piston motor design operates in open/closed circuits
with 20%-30% lower oscillating torque.
4. Modular controls (HA/HD/HZ) enable multi-stage speed adjustment
and remote automation for industrial processes.
5. Extreme temperature-resistant piston components (-40°C~115°C)
prevent thermal failures in agricultural and polar equipment.
FAQ:
Q: Are you trading company or manufacturer?
Re: We are a manufacturer.
Q: How long is the Warranty?
Re: One-year warranty.
Q: What is your payment terms?
Re: 30% deposit against production, 70% balance before shipping.
Q: How about the delivery time?
Re: Regular Models within 7 days, customiszed models and bulk order
within 15-30 days.
