WHEEL MOTORS
HIGH STARTING TORQUE
The radial piston
design ensures very high starting torque efficiencies, especially at high
pressures where they are most required in mobile applications. Efficiency
is typically > 94% at 400 bar.The maximum torque requirement for wheel motor applications generally occurs with the vehicle al standstill or at low speeds, for example, during acceleration from stand-still or when overcoming an obstacle or slope.
High starting torque in the hydraulic motors therefore means better vehicle performance, less energy wastage and heat generation, especially with frequent stop-start work cycles.
High starting torque enables larger obstacles and steeper slopes to be overcome.
WIDE SPEED RANGE
SAI motors have some of the
widest specific speed ranges (max speed: min speed ratio) of any hydraulic
motor, due to their very good low speed characteristics (the motors remain
sensitive to flows down 0.5 l/min) and higher than average max. speeds for
motors of similar design. HIGH VOLUMETRIC EFFICIENCY
The motors have
very high volumetric efficiencies in all operating conditions
(typically >99%). The seal design used throughout the motors ensures
that the volumetric efficiency is not affected if component become worn
with use. The combination of high volumetric and mechanical efficiencies
means that the motors generate less heat enabling smaller heat exchangers
to be installed or, in certain cases, enabling then to be completely
eliminated.
Pressure during vehicle acceleration
Description : motor sizing  |
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| article | click to enlarge the photo |
displacement (cm³/rev) |
specific torque (Nm/bar) |
technical data pdf |
| P05+F25 |  |
59 - 191 |
0.94 - 3.04 |
|
| P1G+F30D |  |
99 - 290 |
1.58 - 4.62 |
|
| P2G+F32 |  |
192 - 565 |
3.00 - 8.83 |
|
| serie WR |
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| article | click to enlarge the photo |
displacement (cm³/rev) |
specific torque (Nm/bar) |
technical data pdf |
| WR6B+GM05 |  |
195 - 955 |
3.10 - 15.20 |
|
| WR10+GM1 |  |
475 - 1507 |
7.38 - 23.5 |
|
| WR10+BD1 |  |
120 - 1166 |
1.87 - 18.20 |
|
| WR20+GM2 |  |
1267 - 4112 |
19.8 - 64.2 |
|
| WR20+BD2 |  |
574 - 3254 |
8.98 - 50.75 |
|
| WR21+BD2 |  |
574 - 2588 |
8.98 - 40.39 |
|
| article | click to enlarge the photo |
peak power |
reduction rate |
technical data pdf |
| G3/G3A+F10 |  |
50 | 1:7 - 1:5 |
|
| article | click to enlarge the photo |
displacement (cm³/rev) |
specific torque (Nm/bar) |
technical data pdf |
| GK3/GK3A |  |
495 - 2198 |
7.7 - 34.3 |
|
| GK3DF/GK3ADF |  |
495 - 2198 |
7.7 - 34.3 |
|
| BDK3/BDK3A |  |
125 - 1710 |
2.0 - 26.5 |
|
| GMD1A+F26 |  |
99 - 314 |
1.54 - 4.90 |
|
| distributori |
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