The rotary gearbox/swing speed reducer we product with with our brand Bonny hydraulic enjoy a wide range: Output torque from 1000-220000N. M, Reduction ratios from3.3 to 3000. Replace all rexroth GFB series in parameters and installation size also could offer replacement to Bonfiglioli, Brevini, RR, O&K, Tejin, NACHI, KYB, Fairfield or Sauer, according to specially demands and design.
Our planetary gearbox - brand bonny hydraulic, have get though all the harsh environment in the last twenty years, including extremely cold area of northeast China and Siberia of Russia with high latitude minus 50 degrees Celsius, in northwest China Taklamakan Desert with 60 degrees Celsius hot dry windy and dusty weather, and in southwest China with high humidity and temperature.
Swing gearboxes reducer usually applies to power swing mechanism and rotation floor, applied in wide area, mining machinery, construction machinery, engineering machinery, shipbuilding, agricultural machinery, light industry. Our products have supply to some first class heavy machinery manufacturer in China such SANY, ZOOMLION, XCMG, etc. We have also cooperate with some military industry factory and institute.

Below is the parameter of our replacement of GFB50T3:

1)Structure: Three stages planetary gear box.

2)Max Output Torque: 23000N. M for excavator use, 35000N. M for Crane use

3)Reduction Ratio range from 110 to 176.

4)Installation way: Slew Support mount (with Flange Mounted).

5)Hydraulic Brake: Hydraulically released stopping brake on request.

6)Output Shaft: Spline or pinion, installed heavy duty bearing.

7)Input Motor: Axial Piston Hydraulic motor, hydraulic orbit motor, IEC electric motor. Recommended hydraulic motor: A2FE45/ A2FE56/ A2FE63/ A2FE80/ A2FE90/ A2FE107/ A2FE125

8)Hydraulic motor mating: Safety valve, Balance Valve or Parking brake on request.

9)We could provide the customers with the consulting service and suitable type selection to find the optimal products resolution for the clients

10) Lead time: Goods in stock, or ten to forty days