High-Efficiency Bent Axis Piston Motor with pressure 400bar for Mobile Machinery
Features:
1. Bent-axis design with axial tapered piston rotary group.
2. Compatibility with hydrostatic drives in open/closed circuits.
3. Dual applicability in mobile and stationary machinery.
4. Infinitely variable speed control with wide range.
5. Stepless adjustment for displacement from Vgmax to zero.
6. Regulation via pump flow and motor displacement synergy.
7. Torque amplification through pressure differential and displacement.
8. High-efficiency energy transfer in hydrostatic transmission.
9. Modular control device selection (mechanical/hydraulic/electronic).
10. Cost-efficient design eliminating gear shift mechanisms.
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:
|
Trademark
|
SY-Hydraulic |
|
Transport Package
|
Standard Export Wooden Case |
|
Certification
|
ISO9001: 2000 |
|
Type
|
Bent axis piston motor
|
|
Production Capacity
|
1000 pcs/month |
|
HS Code
|
8412299090 |
|
Application
|
excavator, loader
|
| Maximum speed |
6300 rpm |
|
Delivery Time
|
15-30 Days after Payment
|
| Displacement |
71-250cc
|
Applications:
1. Tunnel boring machines (TBM): Wide viscosity adaptability supports TBM slurry drives, and corrosion-resistant materials extend tunnel equipment lifespan.
2. Metallurgical rolling mills: Modular controls (HA/HD/HZ) enable rolling mill speed adjustment, and precise flow control ensures sheet quality.
3. Marine deck machinery (winches, windlasses): Wear-resistant copper sleeves and salt spray resistance suit marine environments, while hydrostatic drive enhances winch precision.
4. Oil drilling rigs: Dual pressure ratings (400/450 bar) suit drilling rig impacts, and compact cartridge design saves installation space.
5. Wind turbine pitch control systems: Gearless transmission reduces pitch system maintenance, and low inertia moment enables rapid response to wind speed changes.
Competitive Advantage:
1. Dual pressure-rated axial piston motor (400/450 bar) handles sudden load shocks in mining and oil drilling.
2. Spherical oil distribution technology minimizes piston motor leakage (<0.1%) and extends hydraulic oil service life.
3. Gearless transmission design reduces axial piston motor maintenance frequency and saves 30% lifecycle costs for axial piston motor.
4. Low-inertia piston rotor group achieves start-stop response times <200 ms in port handling equipment.
5. Precise flow control (±1.5%) maintains tension stability in paper/metallurgy production for higher product quality.
The Analysis For Rexroth A6VM Piston Motor Common Breakdown:
1. Abnormal wear of piston: Flow fluctuation with increased noise and reduced efficiency
Repair: Replace matched piston-cylinder components and check lubrication system
2. Scoring on valve plate: Increased pressure pulsation and abnormal housing temperature
Repair: Precision grinding or replacement of valve plate with surface roughness Ra≤0.2μm
3. Swashplate adjustment failure: Displacement unresponsive to control signals
Repair: Clean servo piston chamber and check proportional valve coil impedance (normal 2-5Ω)
4. Shaft seal leakage: Oil leakage at drive shaft
Repair: Replace dual-lip seals and check shaft journal wear (tolerance ±0.01mm)
5. Low charge pressure: Cavitation noise in closed circuit
Repair: Check charge pump gear clearance (standard 0.03-0.05mm) and replace inlet filter
Product Tags:
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High Efficiency Bent Axis Piston Motor Pressure 400bar For Mobile Machinery Images
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