SUMITOMO QT PUMP QT42-31.5F-BP-Z

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Product details

SUMITOMO QT‑42‑31.5F‑BP‑Z

Product Overview

SUMITOMO QT‑42‑31.5F‑BP‑Z is a fixed‑displacement internal meshing gear pump, a core power component for the hydraulic system of industrial Machine. This high‑precision Gear pump delivers stable oil flow with low noise and low pressure pulsation. The F‑BP‑Z configuration features flange mounting, specific port orientation and rotation direction, which is widely adopted for servo‑driven hydraulic circuits, providing reliable pressure and flow supply for various industrial equipment.

Technical Specifications

- Model: QT‑42‑31.5F‑BP‑Z

- Brand: SUMITOMO

- Type: Internal meshing fixed‑displacement gear pump

- Displacement: 31.5 cc/rev

- Mounting: Flange connection (F code)

- Rated working pressure: 21 MPa

- Max peak pressure: 25 MPa

- Rated speed: 1800 rpm; Max speed: 3000 rpm

- Housing material: High‑strength cast iron

- Rotation: Clockwise (viewed from shaft end)

- Suitable oil: ISO VG32‑VG68 hydraulic oil

- Working temperature: ‑10℃ ~ +70℃

Working Principle

As the power source of the hydraulic system, this Gear pump draws hydraulic oil from reservoir through suction port. The internal conjugate gear pair meshes to transport fluid, converting mechanical rotation energy into hydraulic pressure energy. It outputs steady flow to drive actuators of the Machine. The special internal‑meshing structure greatly reduces pressure pulsation and operating noise, ensuring stable performance for precision‑control hydraulic circuits.

Core Advantages

1. Low‑noise design, noise level remains stable even under high‑speed and high‑pressure operation, ideal for indoor working Machine .

2. Ultra‑low pressure pulsation, suitable for precision servo‑controlled hydraulic system requiring smooth flow output.

3. Forced lubrication on sliding surfaces, low wear and long service life under continuous heavy‑duty operation.

4. Flange mounting structure, compact installation, easy to match with servo motor for the hydraulic system.

5. Strict dimensional tolerance, good interchangeability for original equipment replacement.

Application Scope

This SUMITOMO Gear pump is widely applied in the hydraulic system of injection molding machines, die‑casting machines, machine tools, forging equipment and other industrial Machine. It is especially popular for servo‑hydraulic power units, providing stable hydraulic power for precision motion control circuits.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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

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