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OMV BMV Hydraulic Motor - Built for Vibration Applications
The OMV BMV hydraulic motor is not a general-purpose motor. It's built for one thing: making things shake.
Where other motors drive conveyors, winches, or augers, this one spins eccentric weights-the kind that create vibration for compaction, pile driving, and material handling. If your equipment needs to shake hard and keep shaking, this is the motor you spec.
It's a radial piston motor, not a cycloidal. Different internal design, different strengths. Radial piston motors handle shock loads better-exactly what vibration applications throw at them. Pressure spikes, continuous hammering, heat-this motor is built to take it.
What makes it different
Most hydraulic motors use a cycloidal gerotor set. Smooth rotation, good low-speed torque, works fine for conveyors and augers. But vibration applications are different-eccentric weights create continuous shock loads that cycloidal motors weren't designed for.
The OMV BMV hydraulic motor uses a radial piston design. Pistons arranged radially around a central cam lobe. Higher pressure capability. Higher shock load resistance. Better heat dissipation. Built for the abuse that vibration applications dish out.
If you're running a vibratory compactor, a pile driver, or a vibrating conveyor, this is the motor that lasts. A standard motor will wear out fast-this one is built for that exact work.
Product description
Six ways to think about this motor
When you're looking at a vibration motor, you're really asking a handful of practical questions. Here's how the OMV BMV hydraulic motor answers each one.
1. Why can't I just use a standard motor?
You can, but it won't last. Vibration applications kill standard motors. Shock loads, pressure spikes, continuous heat-they wear out bearings, seals, and internal components. The OMV/BMV is built differently-radial piston design, reinforced internals, optimized seals.
2. What's the main advantage of a radial piston design?
Higher shock load resistance. Pressure spikes that would damage a cycloidal motor are handled without issue. The design is inherently stronger and more durable in vibration applications.
3. What about heat?
Vibration generates heat. The OMV/BMV has better heat dissipation than standard motors-larger surface area, optimized oil flow. Runs cooler under continuous heavy load.
4. How do I install it?
Mounted directly to the eccentric weight assembly. Confirm flange and shaft configuration matches your equipment. The connection is critical-misalignment causes vibration that works against the motor.
5. What about back pressure?
Keep case drain back pressure below the recommended limit. Excessive back pressure pushes oil past the shaft seal. If you can't keep it low, install a case drain line back to the reservoir.
6. What about maintenance?
Monitor oil temperature-vibration generates heat. Keep oil clean-change filters regularly. Check eccentric weight connections-loose weights affect vibration amplitude and add stress to the motor.
Installation notes
Mounting: Directly to the eccentric weight assembly. Confirm flange and shaft configuration matches your equipment. Misalignment reduces vibration efficiency and adds stress to the motor.
Case drain: Keep back pressure below the recommended limit. If back pressure is high, install a case drain line back to the reservoir. Excessive back pressure will push oil past the shaft seal.
Start-up: Run at reduced pressure initially to check rotation and vibration response. Check all connections before full operation.
Oil: Use recommended hydraulic oil with proper viscosity and cleanliness. Vibration generates heat-monitor oil temperature closely. Clean oil extends motor life significantly.
About the company
Shijiazhuang Laiye Import & Export Trading Co., Ltd., part of Hebei Onederful® Hydraulic Technology Co., Ltd., has been making hydraulic components since 1988-over 35 years.
We're a factory, not a trading company. Around 200 employees. Full in-house production: casting, machining, assembly, testing, phosphating. We control the whole process.
Products go to Russia, Europe, the Middle East, South America, and Asia. ISO 9001 certified. Every motor is tested individually, with data linked to its serial number. OEM customization, technical support, and a 12-month warranty come standard.
Packaging and transportation
Factory workshop
Company exhibition
FAQ
Q: For what equipment are OMV BMV motors suitable?
A: Travel drives for heavy-duty construction machinery, continuous conveying systems for mining equipment, slewing mechanisms for large port cranes, and other industrial applications requiring continuous operation where maintenance is difficult.
Q: What is causing the severe overheating of the OMV BMV motor housing?
A: Possible causes: excessively high system pressure, excessively low oil viscosity, case pressure buildup due to a blocked drain line, or prolonged continuous operation under high load. Check the system pressure and oil temperature, and verify that the drain line is unobstructed.
Q: What causes insufficient output torque or a drop in rotational speed in OMV BMV motors?
A: First, check whether the system pressure and flow rate are normal. If the system is functioning correctly, the issue may be increased internal leakage caused by internal motor wear. Check the cleanliness of the hydraulic fluid; if contamination is present, flush the system and replace both the fluid and the filter element.
Q: What causes oil leakage from OMV BMV shaft seals?
A: The most common causes are excessive back pressure in the drain line, a blocked drain line, and shaft seal aging. The drain port must be connected directly back to the reservoir to ensure back pressure remains within the permissible range.
Q: What causes the vibration amplitude of the OMV BMV motor to decrease?
A: Possible causes: a drop in system pressure, reduced motor speed, or loose/worn eccentric weights. Check the system pressure and flow rate, and verify whether the motor speed has reached the set value. Also, check the tightness of the eccentric weights.
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