Gear oil pump QXM Series QXM31-020N

ℹ️ Product Description

For medium/high-pressure hydraulic equipment with energy-saving demands, Hengmeisi's Gear oil pump QXM Series QXM31-020N – a perfect replacement for Bucher's QXM series – is a classic dual-function gear unit with symmetric internal gear structure for bidirectional pump/motor operation. Standard rotation, universal mounting, and strict quality testing ensure wide applicability.

✨ Product Advantages

🔄 Dual Function & Energy Recovery

QXM31-020N features a fully symmetric internal structure to achieve four-quadrant operation. It can serve as a pump for oil supply or act as a motor to output power. During deceleration and descending processes, it can recycle excess energy effectively, helping customers cut down energy consumption and operating costs.

📊 Outstanding Pressure Bearing Capacity

Designed for heavy-duty working conditions, this gear unit bears continuous working pressure up to 320 bar and peak pressure up to 400 bar. The compact body delivers strong power output, realizing high power density. It keeps stable performance even under long-term high-load operation.

🔇 Low Noise & Low Pulsation

The precisely optimized gear tooth profile ensures smooth meshing during operation. It greatly reduces mechanical impact and flow pulsation, with operating noise lower than 75dB(A). The quiet running state can meet the usage requirements of indoor workshops and precision machinery.

🧪 Wide Fluid & Environment Adaptability

This unit is compatible with multiple types of hydraulic media, including mineral oil, fire-resistant fluid and biodegradable hydraulic oil. Equipped with high-quality sealing parts and anti-cavitation structure, it resists aging and fluid corrosion, and adapts to complex industrial working environments.

🔤 Model Code Explanation

Detailed explanation for QXM31-020N model code:

• QXM31: Series code for reversible internal gear unit

• 020: Theoretical displacement 20 cm³ per revolution

• N: Standard rotation direction and standard mounting configuration

This general-purpose model enjoys high recognition among overseas buyers for its stable quality, complete functions and competitive price.

🧩 Product Structure

⚙️ Symmetric Gear Assembly

Bidirectional optimized gear pairs guarantee smooth transmission in forward and reverse rotation, ensuring high working efficiency in both pump and motor modes.

🏗️ Integrated Reinforced Housing

One-piece cast pump body owns high structural strength, which can effectively resist pressure impact and mechanical deformation under heavy loads.

🧴 Premium Sealing System

Multi-combined sealing structure is adopted at key joints and shaft ends to prevent oil leakage thoroughly, maintaining reliable operation for a long time.

🧷 Standard Connection Structure

Standard flange, shaft and oil port design ensure good interchangeability, making installation, disassembly and replacement quick and convenient.

🚀 Application Scenarios

🏭 Industrial Hydraulic Equipment

Matching with injection molding machines, hydraulic power stations and pressing machinery to realize energy recycling and stable power supply.

🚜 Mobile Construction Machinery

Applied to aerial work platforms, forklifts, mini excavators and winch drive systems for reliable hydraulic power output.

🛠️ General Mechanical Devices

Serving for fan drive units, rotary mechanisms and various hydraulic lifting platforms in different industries.

📦 Logistics & Auxiliary Equipment

Used in supporting hydraulic systems of conveying and handling equipment to adapt to frequent start and stop working modes.