Manufacturing Companies for Hydraulic Pump For Mini Excavator - GR series – Guorui
Manufacturing Companies for Hydraulic Pump For Mini Excavator - GR series – Guorui Detail:
GENERAL INFORMATION
Cycloidal gear motors convert hydraulic energy (pressure, oil flow) into mechanical energy (torque, speed). Cycloidal gear motors operate on the principle of an internal gear (rotor) rotating within a fixed external gear (stator). The internal gear transmits the torque generated by the application of pressure from hydraulic oil fed into moto which is then delivered via the motor’s output shaft. Cycloidal gear motors have high starting torque and constant output torque at wide speed range.
DISTIBUTORVALVE
GR, GRS series motors have spool valve: the distributor valve has been integrated with the output shaft. The cardan shaft rotates distributor valve and transfers mechanical energy from gerotor set to output shaft. The valve has hydrodynamic bearings and has infinite life when load ratings are not exceeded.
GEAR WHEEL SET
There are two forms of gearwheel set:
Roll-gerotor set has teeth fitted with rollers. The rollers reduce local stress and the tangential reaction forces on the rotor reducing friction to a minimum. This gives long operating life and better efficiency even at continuous high pressures.
Roll-gerotor sets are recommended for operation with thin oil and for applications with continually reversing applications with continually reversing loads. GR, GRS series motors have roll-gerotor set.
APPLICATION
» Conveyors
» Feeding mechanism of robots and manipulators
» Metal working machines
» Textile machines
» Agricultural machines
» Food industries
» Grass cutting machinery etc.
OPTIONS
» Model-Spool valve, roll-gerotor
» Flange mount
» Motor with needle bearing
» Side and rear ports
» Shafts: straight, splined and tapered
» Shaft seal for high and low pressure
» Metric and BSPP ports
» Speed sensoring
» Other special features
GENERAL
| Max.Displacement | cm3/rev | 397 | ||
| Max.Speed | RPM | 970 | ||
| Max.Torque | Nm |
cont.:610 |
int.:690 | |
| Max.Output | KW | 15 | ||
| Max.Pressure Drop | Mpa |
cont.:17.5 |
int.:20 | |
| Max.Oil Flow | lpm | 75 | ||
| Min.Speed | RPM | 10 | ||
| Pressure Fluid | Mineral based-HLP(DIN 51524) or HM(ISO 6743/4) | |||
| Temperature Range | -40 to 140 | |||
| Optimal Viscosity Range | mm2/s | 20 to 75 | ||
| Filtration | ISO code 20/16 (Min.) (recommended fluid filtration of 25 microns) ISO 20/16 | |||
Specification data for GR series motor
| Displacement(cm3/rev) |
GR 50 |
GR 80 |
GR 100 |
GR 125 |
GR 160 |
GR 200 |
GR 250 |
GR 315 |
GR 400 |
|
|
51,5 |
80,3 |
99,8 |
125,7 |
159,6 |
199,8 |
250,1 |
315,7 |
397 |
||
| Max Speed | Cont. |
775 |
750 |
600 |
475 |
375 |
300 |
240 |
190 | 0 |
|
Int.* |
970 |
940 |
750 |
600 |
470 |
375 |
300 |
240 |
190 |
|
| Max Torque | Cont. |
100 |
200 |
240 |
300 |
390 |
385 |
390 |
360 |
380 |
| Nm | Int.* |
130 |
220 |
280 |
340 |
430 |
460 |
470 |
470 |
470 |
| Peak** |
170 |
270 |
320 |
370 |
460 |
560 |
600 |
610 |
610 |
|
| Max Output | Cont. |
7 |
12,5 |
13 |
12,5 |
11,5 |
9 |
8 |
5 |
4,8 |
|
Int.* |
8,5 |
15 |
15 |
14,5 |
14 |
12 |
9,5 |
8 |
6,8 |
|
| Max Pressure Drop | Cont. |
14 |
17,5 |
17,5 |
17,5 |
17,5 |
14 |
11 |
8,5 |
6,5 |
| Mpa | Int.* |
17,5 |
20 |
20 |
20 |
20 |
17,5 |
14 |
11,5 |
9 |
| Peak** |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
20 |
15 |
11,5 |
|
| Max Oil Flow | Cont. |
40 |
60 |
60 |
60 |
60 |
60 |
60 |
60 |
60 |
|
Int.* |
50 |
75 |
75 |
75 |
75 |
75 |
75 |
75 |
75 |
|
| Max Inlet Pressure | Cont. |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
| Int.* |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
|
| Peak** |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
|
| Max.Return Pressure with Drain Line | Cont. |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
17,5 |
| Int.* |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
|
| Peak** |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
22,5 |
|
| Max.Starting Pressure with Unloaded Shaft |
1 |
1 |
1 |
0,9 |
0,7 |
0,5 |
0,4 |
0,3 |
0,3 |
|
| Min Starting Torque | At max.press. drop Cont. |
80 |
150 |
200 |
250 |
320 |
330 |
310 |
315 |
315 |
|
At max.press.drop Int.* |
100 |
170 |
230 |
280 |
370 |
400 |
480 |
580 |
500 |
|
| Min.Speed |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
| Weight(kg) | MR(F) |
6,8 |
6,9 |
7,2 |
7,3 |
7,5 |
8 |
8,4 |
9,1 |
9,8 |
|
MRQ(N) |
6,2 |
6,3 |
6,6 |
6,8 |
7,6 |
7,2 |
7,8 |
8,6 |
9,3 |
|
Product detail pictures:
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We always think and practice corresponding to the change of circumstance, and grow up. We purpose at the achievement of a richer mind and body as well as the living for Manufacturing Companies for Hydraulic Pump For Mini Excavator - GR series – Guorui, The product will supply to all over the world, such as: Doha, Finland, Bahamas, We will supply much better products with diversified designs and professional services. At the same time, welcome OEM, ODM orders, invite friends at home and abroad together common development and achieve win-win, integrity innovation, and expand business opportunities! If you have any question or need more information please feel free to contact us. We are looking forward to receiving your enquiries soon.
By Margaret from Czech republic - 2016.11.11 11:41
This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately， we successfully completed the procurement tasks.
By Fay from Mombasa - 2015.07.26 16:51
