Model No.: 3MF
Introduction of Group2.5 Gear motors
Group3 Gear motors from GRH have a floating bushing feature with automatic axial clearance compensation. The bushings are made with special abrasion resistant material providing improved service life. Precisely machined gears ensure our units provide excellent low noise characteristics. Our cold extrusion motor bodies can endure pressures above 30Mpa. High strength cast iron front & rear covers also enhance our reliability. Our units are widely used in the industrial, mobile, marine and aerospace industries.
They can be divided into two types. One is the single direction gear motor, the other is the bi-direction gear motors. Normally the design of the single direction gear motor is similar to that of the single direction gear pump with some slight design differences. Therefore, all GRH pumps have a corresponding single direction gear motor. When placing your order, please refer to the ordering code.
We now focus on the bi-direction gear motors. This motor has a different sealing structure to the single direction motor. The symmetrical sealing (refer to the bottom drawings) separate high pressure from low pressure thus allowing bi-direction operation. The oil from internal leakage returns to tank through the drain port. Normal case drain pressure is limited to 2 bar, but 5 bar is allowed for intermittent operation. High quality of the bushings, bearings and seals adds to the outstanding performance of GRH bi-direction gear motors.
Direction of rotation: bi-direction and single- direction
Permissible ambient temperature range: min= -20℃-max= +60℃
Operating pressures:input side P1 max = refer above data; outlet side P2 max =3 bar
Drain pressure: max = 2 bar, short time: max = 5bar
Fluid temperature range: max=90℃ for NBR rotary shaft lip-type seal, 100℃ for FKM rotary shaft lip-type seal
Viscosity range: min= 10 mm²/s-max= 600mm²/s
Recommended Vicosity range: V=30...45mm²/s
Recommended hydraulic fluids use: GB11118-94 : L-HM46 or equate NFE-603/DIN515524II-85
Manufacture of gear pump, gear motor, orbital motor and valves.
GRH, since 1986, is the manufacture of hydraulic components such as proportional valves, sectional valves, mono-block valves, hydraulic manifolds, flow control valve( manual and proportional) , gear pumps, gear motors, flow dividers, Orbital motor, Mini power pack, pump + motor assembly, hydraulic power station
Applications: Agricultural machinery: tractor , combined harvester, etc,
Forest machinery: wood cutter, log splitter , sweeper, lawn mover
Construction machinery: excavator, grader, loader, earthmover, etc.
Industrial equipment: such as plastic machinery , metallurgy industry, textile machinery, package machine, machining tools, etc
Mobile application: trucks, vehicles, boom lift and scissor lift, cranes, etc
Road machinery: sweeper, paver, compactor
Marine and ship industries
GRH is the supplier of big agricultural machinery players, construction machinery players, such as Terex, JCB , CNH, John Deere, DEUTZ, etc. GRH has been working with Terex Group for 10 years, working with YTO for 6 years and has been selected as the Best Supplier for 5 continuous years. GRH manufacture covers an area of 120,000㎡, with a construction area of 60,000 ㎡, with a total staff of 340 plus. Whenever you step inside, the shop always looks clean and in very good order.
We appreciate your visit to GRH facilities. We appreciate your cooperation with GRH.
- Company Name: Manufacture of gear pump, gear motor, orbital motor and valves.
- Representative: weihua Zhu
- Product/Service: Hydraulic Valves , Hydraulic Gear Pumps , Hydraulic Motors , Mini Power Pack , Proportional Valve , Hydraulic Parts
- Capital (Million US $): 20，000，000RMB
- Year Established: 2004
- Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
- Export Percentage: 51% - 60%
- Total Annual Purchase Volume (Million US $): Below US$1 Million
- No. of Production Lines: 10
- No. of R&D Staff: 31 -40 People
- No. of QC Staff: 21 -30 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): Above 100,000 square meters
- Factory Location: 666 West Shuanghu Road West, Jianhu, Jiangsu, China.
- Contact Person: Mr. John
- Tel: +86-21-56626882-8806
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