Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of bm6 series — ultimate high-torque gerotor motor in China, also supports customized service. If you're going to wholesale high quality bm6 series — ultimate high-torque gerotor motor made in China, welcome to get pricelist from our factory.
Product Overview
The BM6 is a gerotor motor. Pump oil in, the shaft turns. Inside, a disc valve directs oil to the gerotor set. The set rotates. The shaft follows.
This one is the big brother of the BM family. Largest displacement. Highest torque. Intermittent pressure goes up to 31 MPa. Intermittent torque hits 1877 N·M.
The shaft seal handles backpressure. Up to 10 MPa. Run motors in series if you want. Run them in parallel. The seal does its job.
Reversing is easy. Swap the two lines. The motor turns the other way.
We have different flanges, shafts, and port options. The BM6 Series - Ultimate High-Torque Gerotor Motor can be built to match your machine. Just tell us what you need.
What Makes It Different
Big displacement. Up to 985 cc/rev. That is a lot of oil per revolution. The result? Low speed. Lots of torque.
High pressure. 31 MPa intermittent. That is higher than most gerotor motors can handle. The BM6 can take it.
High torque. 1877 N·M intermittent. That kind of torque can drive crushers, large winches, and heavy conveyors.
Disc valve distribution. Oil enters through the end face. This design keeps the motor smooth at low speeds. No jerking.
Automatic wear compensation. The valve adjusts as it wears. Efficiency stays steady over time. Most motors lose performance as they age. This one holds up.
Double-row tapered roller bearings. Handles side loads. Keeps the shaft stable under heavy stress.
High backpressure capability. The shaft seal holds up to 10 MPa. Run motors in series or parallel. The seal handles it.
Multiple options. Flanges, shafts, ports-we have variations to fit your machine. Just tell us what you need.
Specifications
| Parameter | Value |
|---|---|
| Series | BM6 |
| Displacement range | 195 - 985 cc/rev |
| Max. intermittent pressure | 31 MPa |
| Max. continuous pressure | 20.5 MPa |
| Max. intermittent torque | Up to 1877 N·M |
| Max. working temperature | 80°C |
| Max. back pressure | 10 MPa (recommended ≤5 MPa) |
| Recommended fluid | 68# anti-wear hydraulic oil |
| Recommended viscosity | 37 - 73 cSt |
Detailed Technical Data
| Displacement (cc/rev) | 195 | 245 | 310 | 390 | 490 | 630 | 800 | 985 |
|---|---|---|---|---|---|---|---|---|
| Flow (L/min) | ||||||||
| Max. continuous flow | 150 | 150 | 150 | 150 | 150 | 150 | 150 | - |
| Max. intermittent flow | 170 | 210 | 225 | 225 | 225 | 225 | 225 | 225 |
| Speed (RPM) | ||||||||
| Max. continuous speed | 776 | 615 | 484 | 385 | 308 | 242 | 186 | 155 |
| Max. intermittent speed | 865 | 836 | 699 | 572 | 453 | 354 | 275 | 230 |
| Pressure (MPa) | ||||||||
| Max. continuous pressure | 20.5 | 20.5 | 20.5 | 20.5 | 17 | 14 | 12 | 12 |
| Max. intermittent pressure | 31 | 31 | 31 | 31 | 27.5 | 17 | 14 | 14 |
| Torque (N·M) | ||||||||
| Max. continuous torque | 572 | 733 | 928 | 1156 | 1213 | 1331 | 1378 | 1565 |
| Max. intermittent torque | 852 | 1176 | 1356 | 1633 | 1878 | - | 1645 | 1877 |
Where You Use These Motors
The BM6 is for the biggest jobs. Here is where it goes.
Crushers. Rock crushers. Wood chippers. The motor takes the shock loads.
Heavy conveyors. Mining. Aggregate. Bulk material. The motor runs all day.
Large winches. Marine. Industrial. Towing. The motor pulls hard.
Mixers. Concrete. Asphalt. Chemical. The motor turns heavy drums.
Track drives. Heavy construction equipment. The motor handles side loads.
Auger drives. Large drilling rigs. The motor delivers high torque at low speed.
If the job is tough and the torque demand is high, the BM6 Series - Ultimate High-Torque Gerotor Motor is the right choice.
How We Build These Motors
Casting
Iron castings come in from our foundry. We check each one. No porosity. No cracks. Bad ones are rejected before they hit the machining line.
Machining
The body gets bored. Ports get drilled. Mounting faces get machined flat. The gerotor set is ground to its final size. The disc valve is honed smooth. Everything is held to tight tolerances.
Bearing installation
Double-row tapered roller bearings are pressed in. Proper fit. Not too tight, not too loose. The shaft goes through and spins freely.
Assembly
The gerotor set goes into the body. The disc valve sits on top. Seals are fitted. Bolts are torqued to spec.
Testing
Every motor goes on the test stand. We start at low pressure. Check for leaks. Check for smooth rotation. Then we ramp up to full pressure. All data is recorded.
Painting
The body gets a coat of industrial enamel. Mounting faces stay bare.
Packing
Small orders go in cartons. Bulk orders in plywood cases. Test reports are included.
Shipping
Sea, air, rail, truck, or express. We ship to customers worldwide.
About the Company
We started in 1988. Over 35 years in hydraulics. Our team has more than 200 people.
We are a factory. We machine, assemble, and test in our own building. One roof. Full control.
We ship over 10,000 containers a year. Customers in more than 20 countries-Russia, Europe, the Middle East, South America, Southeast Asia.
How we handle quality
Every batch goes through at least 10 checks. Each motor gets tested on its own stand. Leakage and performance are verified.
Engineering
We have real engineers on staff. Senior industry experts advise us. Our team keeps improving the product.
What you get
12-month warranty from Bill of Lading date. Technical support from people who know hydraulics. Shipping by sea, air, rail, truck, or express. Packaging that survives export.
FAQ
Q: What is automatic wear compensation and how does it work?
A: The disc valve distribution mechanism adjusts itself as internal parts wear. The valve maintains its sealing clearance automatically. Efficiency stays consistent over the motor's service life. Most motors lose performance as they age; the BM6 does not.
Q: What voltage options are available for the BM6?
A: The BM6 does not use solenoids-it is a hydraulic motor, not a valve. It operates on hydraulic flow and pressure. No electrical connection is required.
Q: What are the main applications for the BM6?
A: Heavy-duty industrial and mobile equipment. Rock crushers, wood chippers, large winches, heavy conveyors, concrete mixers, track drives, and large auger drives. Anywhere you need extreme torque at low speed.
Q: What is the typical service life of the BM6?
A: Depends on oil cleanliness and operating conditions. With clean oil at ISO 18/13 or better, the motor runs for thousands of hours. Dirty oil is the main cause of premature wear.
Q: What if the motor runs hot?
A: Check the oil viscosity. Check the back pressure. Check for contamination. If these are normal, the motor may be overloaded. Reduce the load or increase cooling capacity.
Q: Can I get a BM6 with a different flange type?
A: Yes. Multiple flange options are available. The standard is the 4-bolt square flange. Other flanges can be supplied. Tell us your requirement.
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