OIL PUMP ROP 13A

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

1. Product Basic Information

Model Definition

• ROP 13A:

• ROP: May stand for "Radial Piston Pump" or a manufacturer-specific series code (e.g., "Rotary Oil Pump").

• 13: Nominal displacement (13 mL/rev) or pressure rating (e.g., 13 MPa).

• A: Design version or port type (e.g., Type A flange, shaft end configuration).

Core Function

• Provides high-pressure oil for hydraulic systems to drive actuators such as hydraulic motors and cylinders.

• Suitable for hydraulic power units (HPUs) in construction machinery, industrial equipment, or heavy-duty machinery.

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2. Technical Specifications (Example: Replace with actual data)

【表格】

Parameter ROP 13A Specifications

Type Radial piston variable pump

Displacement 13 mL/rev (adjustable to 25 mL/rev)

Rated Pressure 28 MPa (peak 35 MPa)

Speed Range 600–2500 rpm

Volumetric Efficiency ≥92% (at rated conditions)

Weight ~18 kg

Port Standard SAE J518 Code 61 (3000 PSI)

Cooling Method Natural cooling / forced air cooling (optional)

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3. Structure and Working Principle

Internal Construction

• Radial Piston Design:

• Pistons arranged radially, driven by an eccentric wheel for suction/discharge.

• Advantages: High contamination resistance, long lifespan, low pressure pulsation.

• Variable Mechanism(if applicable):

• Adjusts swashplate angle to vary displacement, enabling stepless flow control.

Hydraulic System Integration

1. Suction: Draws hydraulic oil from the tank (recommended viscosity: 32–46 cSt @40℃).

2. Discharge: Outputs high-pressure oil to the main circuit.

3. Control: Pressure/flow adjustment via proportional valves or manual controls.

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4. Application Scenarios

Construction Machinery

• Equipment Types: Excavators, loaders, road rollers.

• Role: Drives travel motors, slewing mechanisms, or working devices (e.g., boom cylinders).

• Advantages: High-pressure output for heavy-duty operations; variable function saves energy.

Industrial Automation

• Equipment Types: Injection molding machines, die-casting machines, hydraulic presses.

• Role: Provides stable pressure for precision forming.

• Advantages: Low noise, fast response, adapts to frequent start/stop cycles.

Marine and Offshore Engineering

• Equipment Types: Deck cranes, steering gear systems.

• Role: Reliable operation in salt-spray environments.

• Advantages: Corrosion-resistant seals; lifespan exceeds 10,000 hours.

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5. Selection and Matching Guide

Key Parameter Matching

• Displacement Calculation:

Q=V×n60×ηvQ = \frac{V \times n}{60 \times \eta_v}Q=60×ηvV×n

(Q: Flow rate L/min; V: Actuator volume; n: Rotational speed rpm; ηv: Volumetric efficiency)

• Pressure Matching: Pump rated pressure must be ≥ system maximum working pressure + 20% safety margin.

Typical System Configurations

• Open Circuit: Pump → Actuator → Tank (requires filter).

• Closed Circuit: Pump → Motor → Charge pump (for travel drives).

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

Audited supplier

3 year

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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