Manufacturing Companies for Hydraulic Pump For Mini Excavator - GR series – Guorui

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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.

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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

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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:

Manufacturing Companies for Hydraulic Pump For Mini Excavator -
 GR series – Guorui detail pictures


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  • With a positive attitude of "regard the market, regard the custom, regard the science", the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.
    5 Stars By Norma from Afghanistan - 2015.11.22 12:28
    This is a very professional and honest Chinese supplier, from now on we fell in love with the Chinese manufacturing.
    5 Stars By Maud from Rome - 2015.02.12 14:52

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