109-1246-006 Hydraulic Orbit Motor

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

4 year

Product details

109‑1246‑006 Hydraulic Orbit Motor

Model Overview

Type: Low‑speed high‑torque geroler hydraulic orbit motor with disc valve distribution, Eaton Char‑Lynn 4000 Series

Core Technical Parameters

- Model No.: 109‑1246‑006 (4000 Series)

- Displacement: 311.8 cm³/r (19.03 in³/r)

- Continuous Torque: 850 Nm (approx. 7530 lbf‑in)

- Rated Speed: 303 rpm

- Continuous Operating Pressure: Approx. 205 bar (2970 psi)

- Maximum Flow Rate: Approx. 80 L/min (21 gpm)

- Weight: Approx. 26 kg (57 lb)

- Housing Material: Cast iron, disc‑type valve distribution

- Rotation: Bi‑directional

Structure & Port Configuration

- Output Shaft: 40 mm straight shaft with M12×1.75 thread and flat key

- Mounting Flange: 4‑bolt square flange (SAE standard)

- Service Ports: SAE split flange connection

- Drain Port: G1/4 BSP straight thread with check valve

Key Features

- Disc‑type valve distribution with automatic clearance compensation, high volumetric efficiency and long service life

- Geroler® rotor design for low starting pressure, stable operation and high torque output

- Heavy‑duty bearings to withstand large radial and axial loads

- Widely applied in medium‑to‑heavy‑duty low‑speed scenarios such as construction machinery, agricultural machinery, drilling rigs and conveyor equipment

Interchangeable Models

- Domestic alternative: OMT315 (Blince and other brands)

- Same series: 109‑1246‑006 is the standard version of 4000 Series with suffix ‑006

109-1246-006 Hydraulic Orbit Motor: Technical Analysis and Application in Hydraulic Systems

I. Product Positioning and Core Functions

The109-1246-006 Hydraulic Orbit Motoris a type ofhydraulic orbit motor, serving as a critical actuator inhydraulic systems. Its primary function is to convert hydraulic energy (pressure and flow) supplied by a hydraulic pump into mechanical energy (torque and rotational speed) to drive loads in rotary motion. This model adopts an internal gearing design (with an inner stationary gear as the stator and an outer rotating gear as the rotor), forming sealed chambers through planetary reduction principles to achieve low-speed, high-torque output.

II. Technical Specifications and Performance Characteristics

1. Displacement and Torque

• Displacement range: 36 cc/rev to 500 cc/rev (customizable for specific applications).

• Maximum torque: Up to 1,113 N·m (e.g., BMS-500 model), suitable for heavy-load startups.

2. Pressure and Flow

• Continuous operating pressure: 14–17.5 MPa; peak pressure: 22.5 MPa, capable of withstanding high-pressure conditions.

• Maximum flow rate: 75 L/min, compatible with medium- to large-scale hydraulic systems.

3. Speed and Efficiency

• Speed range: 10–810 rpm (e.g., BMS-80 model), with excellent low-speed stability.

• Volumetric efficiency: >85%; high mechanical efficiency with minimal energy loss.

4. Structural Advantages

• Compact and Lightweight: Small footprint and low weight (e.g., BMS-80 weighs only 9.8 kg), enabling direct connection to working mechanisms and simplified transmission systems.

• High Sealing Performance: Shaft seals designed to withstand high-pressure differentials, supporting series or parallel configurations.

• Long Service Life: Key components made of high-strength materials for superior wear resistance, with a lifespan exceeding 10,000 hours.

III. Applications in Hydraulic Systems

1. Construction Machinery

• Rotary mechanisms in excavators and loaders, as well as drives for timber grapples. For example, the Shanghai Shuangxu BH-630 grapple motor (630 cc/rev displacement, 25 MPa rated pressure) uses a similar design.

2. Marine Machinery

• Steering gears and deck crane drives, leveraging the motor’s low-speed, high-torque capabilities for precise control.

3. Industrial Equipment

• Rotary components in injection molding machines and metallurgical equipment, requiring high starting torque and bidirectional switching.

4. Agricultural Machinery

• Hydraulic transmissions in tractors and harvesters, adapted to harsh operating conditions and contamination-prone environments.

IV. Selection and System Matching Guidelines

1. Pressure and Flow Matching

• Select displacement based on load requirements to ensure system pressure stays within the motor’s rated limits (e.g., 22.5 MPa peak pressure for 109-1246-006).

2. Oil Cleanliness

• Equip filters with a filtration rating of <20 μm to prevent contaminants from entering gear chambers and extend service life.

3. Cooling and Lubrication

• Ensure adequate oil circulation for heat dissipation during high-speed operation to avoid volumetric efficiency degradation.

4. Maintenance Intervals

• Regularly replace hydraulic oil and filters, inspect shaft seals for leaks, and recommend maintenance every 2,000 operating hours.

V. Technical Comparison and Advantages Summary

【表格】

Characteristic Hydraulic Orbit Motor Gear Motor Vane Motor

Torque Output High torque density, ideal for heavy-load startups Torque pulsation, poor low-speed stability High-speed, low-torque; prone to stalling at low speeds

Efficiency Volumetric efficiency >85%; high mechanical efficiency Poor sealing, lower volumetric efficiency High leakage; efficiency drops at low speeds

Compactness Small size; direct load coupling (no reducer needed) Requires additional reducer; bulky Complex structure; high inertia

Typical Applications Grapples, steering gears, low-speed heavy-load scenarios High-speed, light-load tasks (e.g., fan drives) Automation equipment with frequent reversing

Conclusion: The109-1246-006 Hydraulic Orbit Motorexcels in low-speed, high-torque applications within hydraulic systems due to its high torque density, stability, and compact design. Proper parameter matching and maintenance significantly enhance equipment reliability and service life.

109-1246-006 Hydraulic Orbit Motor Product Description

The 109-1246-006 is a high-performance Hydraulic orbit motor, classified as a low-speed, high-torque gerotor-type hydraulic motor. Featuring an advanced gerotor design, this hydraulic motor delivers smooth and robust rotary power in an extremely compact package. Its typical displacement and mounting interface make it an ideal choice for a wide range of mobile and industrial equipment.

As a core actuator within the complete hydraulic system, this hydraulic motor can be connected directly to the host machine’s hydraulic circuit, driving wheel ends, winches, or slewing devices without the need for an intermediate gearbox. Its precise internal flow distribution and high volumetric efficiency significantly enhance the response speed and energy utilization of the entire hydraulic system. When faced with sudden load changes or pressure fluctuations, the 109-1246-006 Hydraulic orbit motor relies on its high-pressure-resistant sealing structure and reinforced rolling bearings to ensure smooth operation and excellent shock tolerance, effectively protecting associated hydraulic system components.

Whether in the propel drives of agricultural machinery, the swing platforms of construction vehicles, marine deck equipment, or industrial automation lines, this Hydraulic orbit motor delivers consistent and reliable torque output. Even in demanding applications requiring frequent start-stops, reversals, or prolonged pressure holding, this hydraulic motor maintains low wear and extended service life, simplifying the maintenance workload of the hydraulic system. Choosing the 109-1246-006 means integrating a durable and long-lasting Hydraulic orbit motor heart into your hydraulic system, comprehensively enhancing your equipment's productivity and operational reliability.