Gear oil pump QX Series QX53-040/22-006R

Product Description

Hengmeisi Gear oil pump QX Series QX53-040/22-006R – Bucher replacement dual pump. 40cc + 6cc cores, isolated circuits, right-hand rotation. 320/380 bar, zero interference. Ideal for heavy load + fine adjustment.

Product Advantages

1. High-Low Pressure Gradient Dual-Circuit Design

40cc QX53 high-pressure core provides powerful hydraulic power for main equipment movement, while 6cc QX22 ultra-micro core precisely supplements tiny flow loss in the system. This gradient combination avoids energy waste from excessive overflow and ensures stable pressure holding, solving the contradiction between high power demand and precision control in complex hydraulic systems.

2. Ultra-Compact High-Pressure Integrated Structure

The monolithic casting housing integrates two different pressure-grade pump cores, reducing overall installation space by 40% compared with separate installation of two pumps. The reinforced internal partition wall withstands 380bar peak pressure, making it suitable for embedded installation in narrow spaces of heavy industrial equipment.

3. Precision Pressure Trimming & Low Flow Drift

QX22 ultra-micro core adopts precision gear grinding technology with 0.002mm tooth profile tolerance, ensuring stable 6cc/min flow output even under long-term pressure holding. The pump maintains pressure fluctuation within ±0.5bar, ideal for hydraulic systems requiring precise position locking and constant pressure control.

4. Enhanced Wear Resistance for Heavy-Duty Cycles

QX53 main core gears use carburized alloy steel with 62HRC surface hardness, while QX22 micro core adopts corrosion-resistant stainless steel material. The high-pressure resistant HNBR sealing kit works reliably in -25℃~+90℃ temperature range, adapting to frequent start-stop and long-term continuous operation of industrial equipment.

Model Code

QX53-040/22-006R strictly follows BUCHER official coding standards for quick parameter identification:

QX53: High-pressure series pump platform (pressure class 3) for heavy-duty main drive loops;

040: 40cm³/rev fixed displacement for high-power hydraulic output;

QX22: Ultra-micro specialized series for precision flow compensation and pressure trimming;

006: 6cm³/rev ultra-small displacement for minimal flow supplement;

R: Right-hand clockwise rotation direction, compatible with most industrial drive systems.

This high-low pressure dual-core pump is customized for complex hydraulic systems requiring both heavy load capacity and precision control, gaining recognition in global machinery manufacturing industry.

Product Structure

1.Core Architecture: High-Pressure Isolated Dual-Cavity Structure

One-piece cast iron housing is divided into two independent pressure chambers by reinforced partition wall, accommodating QX53 high-pressure core and QX22 ultra-micro core respectively. The fully isolated flow channels ensure zero mutual interference between high-pressure main loop and micro-flow auxiliary loop.

2.Gradient Flow Output Principle

Two pump cores operate independently with fixed displacement: 40cc main core completes heavy-load equipment movement, while 6cc micro core performs real-time pressure trimming to maintain system stability, simplifying external valve group configuration.

3.High-Performance Component Configuration

QX53 main core: Carburized fine-ground alloy steel gears, high-pressure resistant HNBR seals, heavy-duty bearings supporting max 1800rpm rotation;

QX22 micro core: Corrosion-resistant stainless steel gears, precision ceramic ball bearings, low-friction PTFE sealing elements for minimal flow loss.

4.Standard Interface for Direct Replacement

Inlet/outlet ports and mounting flange dimensions are fully compatible with original BUCHER specifications, enabling direct replacement without modifying equipment pipelines or mounting bases.

Application Scenarios

Heavy-duty stamping equipment: Main drive + precision pressure holding dual-circuit hydraulic power;

Injection molding machines: High-pressure mold clamping + micro-flow mold adjustment hydraulic system;

Precision forging machinery: Main forming drive + fine position control auxiliary circuit;

Large-scale testing equipment: High-pressure loading + micro-flow pressure compensation dual-loop hydraulic source;

Custom hydraulic power units: Integrated high-low pressure dual-circuit compact power pack for special industrial applications.