BM5 Cycloidal Motor

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Product details

BM5 Cycloidal Motor

The BM5 cycloidal motor is a compact, low-speed, high-torque hydraulic motor widely used in engineering machinery, agricultural equipment, injection molding machines, and lifting and transportation machinery. Its parameters vary depending on the specific model (displacement) and manufacturer, but the main performance indicators typically fall within a specific range.

Key Characteristics of BM5 Cycloidal Motors :

High Torque at Low Speed: The primary characteristic of the BM5 motor is its ability to deliver significant torque at low rotational speeds, which makes it ideal for applications like winches, augers, and material handling equipment.
Compact and Lightweight Design: The spool valve and gear set design results in a small overall volume and low weight while still producing high power, allowing it to fit into space-constrained applications.
High Efficiency and Economy: It offers an optimal balance of efficiency and cost-effectiveness for medium-duty applications, making it an economical choice compared to some heavy-duty alternatives.
Smooth and Stable Operation: The cycloidal drive mechanism and specific flow distribution system allow for smooth control of shaft rotation direction and speed with minimal noise and vibration.
Robustness and Reliability:

High Back Pressure Tolerance: The motor features special shaft seals designed to withstand high back pressure, allowing it to be used effectively in both series and parallel hydraulic circuits. A case drain line is recommended if back pressure exceeds 5 MPa to benefit motor life.
Durable Construction: Built with high-quality materials and a robust internal design, the motor offers a long service life and high reliability in demanding environments.

Versatility in Configuration: It is available with various options for connecting flanges, output shafts (keyed or splined), and port sizes (e.g., NPT or SAE-10), offering great adaptability for different machinery requirements.
Wide Range of Applications: Due to these features, the BM1 is widely used across industrial equipment, agricultural machinery, and construction applications.

Application

BM5 Cycloidal Motors are versatile and widely used across different industries:

Harvesters and Tractors: Driving harvesting tools, cutting decks, conveyor belts, and front-end loaders.
Seeders and Spreaders: Providing power for precise seed and material distribution systems.
Lawn Mowers and Sweepers: Used in turf equipment and compact sweepers due to its size and speed characteristics.
Ground Drilling: Powering augers and ground drilling machines.

1. Product Basic Definition

The BM5 Cycloidal Motor is a mid-range heavy-duty cycloidal hydraulic motor with end-face flow distribution structure, a high-precision Hydraulic orbit motor. It efficiently converts hydraulic energy into mechanical energy via precision roller gerotor assemblies. As a core power actuator for low-speed heavy-load scenarios in medium-and-large-flow hydraulic system, it optimizes oil distribution compared with BM4 series, with improved volumetric efficiency and backpressure resistance, perfectly suiting intensive continuous operation of construction machinery, marine equipment, mining machines and other industries.

2. Core Structure & Working Principle

Core Structural Advantages

It adopts exclusive end-face flow distribution design for higher oil distribution accuracy and volumetric efficiency. Double tapered roller heavy-duty bearings on the output shaft withstand heavy combined radial and axial loads. High-pressure shaft seals enable remarkable backpressure resistance, allowing direct series or parallel connection within the hydraulic system. Built-in integrated automatic wear compensation and bidirectional relief valves stabilize efficiency in long-term operation. Three mounting types (standard flange, wheel motor, bearing-free motor) and multiple key/spline shaft options meet diversified installation demands.

Operation Mechanism

High-pressure hydraulic oil supplied by the hydraulic system enters sealed motor chambers, driving the rotor to perform eccentric orbital revolution along the stator inner wall. The orbital motion is converted into low-speed high-torque rotation of the output shaft through transmission parts. Forward and reverse rotation can be smoothly achieved by switching the oil inlet and outlet direction of the hydraulic system, featuring mild startup shock and minimal low-speed crawling for long-cycle heavy-duty work.

3. Core Performance Advantages (Premium Hydraulic orbit motor Traits)

- Wide-range low-speed high-torque capacity: Displacement ranges from 80mL/r to 800mL/r with peak torque up to 2200N·m, capable of driving heavy loads without extra reducers, featuring low starting pressure and strong anti-shock performance.

- Excellent hydraulic system compatibility: High-backpressure sealing adapts to complex multi-circuit pipeline arrangement, flexible for series-parallel connection and compatible with mainstream medium-high pressure pump stations.

- Long service life & low maintenance: Roller gerotor pair compensates meshing wear automatically to endure dusty, vibrating and humid environments. Highly interchangeable spare parts cut long-term maintenance costs of the hydraulic system.

- Versatile installation: Three mounting configurations plus abundant shaft & port selections enable seamless integration into construction, agricultural, marine and machine-tool hydraulic system.

4. Key Technical Specifications

- Displacement: BM5-80 ~ BM5-800 mL/r

- Continuous working pressure: 17~21MPa, peak shock pressure up to 25MPa

- Rated continuous flow: 75L/min, intermittent max flow: 130L/min, matching medium-large flow hydraulic systems

- Continuous rotating speed: 5~799r/min with excellent low-speed stability

- Torque range: 195~2200N·m, ideal for travel, slewing, winch and plasticizing heavy drives

5. Application Scenarios

As a high-power standardized Hydraulic orbit motor, it is widely adopted in heavy-duty hydraulic system:

1. Construction machinery: Travel & slewing drives for medium excavators, loader attachment actuators, heavy rotation units for aerial work platforms, truck-mounted hydraulic winches;

2. Agriculture & fishery: Drive rollers of large harvesters, agricultural traction systems, marine anchor windlasses and fishing net winches;

3. Industrial equipment: Plasticizing screw drives for injection molding machines, spindle feed mechanisms of machine tools, heavy material conveyor transmissions;

4. Mining & special vehicles: Underground drilling machine drives, mine conveyor units, brush drives for road milling sweepers;

5. Marine industry: Deck machinery for medium-small ships, hydraulic winches for inland vessels.

6. Cross-border Marketing Copy

Short Platform Title

BM5 Cycloidal Motor | High-efficiency End-face Distribution Hydraulic Orbit Motor for Complex Industrial Hydraulic System

Long Product Description

Our BM5 Cycloidal Motor is an upgraded heavy-duty hydraulic orbit motor featuring advanced end-face flow distribution. With roller gerotor structure and dual tapered roller bearings, it delivers outstanding volumetric efficiency and low-speed high-torque performance, fitting customized layout schemes of your entire hydraulic system.

Equipped with auto wear compensation and high backpressure resistant shaft seals, this hydraulic orbit motor supports flexible series-parallel connection in the hydraulic system, simplifying pipeline layout and boosting overall stability. Multiple mounting modes (standard flange, wheel motor, bearing-free type) and diversified shaft/port options match different pressure & flow parameters of your hydraulic system precisely. It maintains reliable performance under harsh dusty, vibrating and humid conditions, greatly extending the lifecycle of your hydraulic system.

English Version of Chinese Marketing Copy

As an upgraded heavy-duty Hydraulic orbit motor with end-face flow distribution, the BM5 Cycloidal Motor achieves deep adaptation to complex industrial hydraulic system. Its roller gerotor design and double tapered roller bearings bring ultra-high volumetric efficiency and powerful low-speed high-torque output. Built-in wear compensation and high-backpressure seals allow flexible series-parallel arrangement in hydraulic systems to optimize oil circuit layout. Multiple mounting forms and customizable shaft/port types can accurately match hydraulic system parameters, sustaining stable operation in severe working conditions, lowering maintenance expenses and prolonging equipment service cycles.

7. Selection Guidelines

Determine the exact displacement and mounting type based on rated pressure difference, supply flow, peak load torque and installation structure of your hydraulic system. For frequent shock and high-backpressure working conditions, select reinforced-housing Hydraulic orbit motor versions, and optimize the overload protection circuit of the hydraulic system to enhance overall reliability.