Gear oil pump QX Series QX43-032R113

Product Description

Hengmeisi Gear oil pump QX Series QX43-032R113 internal gear pump – China factory direct replacement for Bucher with optimized tooth design. Rated 250 bar continuous / 280 bar peak, 92% efficiency, ≤1.2% flow pulsation, compact – ideal for constant-pressure hydraulic circuits in high-end industrial equipment.

Product Advantages

Optimized Internal Meshing vs Traditional External Gear & Vane Pump Designs

Unlike common external gear pump or fixed-displacement vane pump, the Internal Gear Pump QX43 Series QX43-032R113 uses precision inner-outer gear meshing structure. It greatly cuts meshing friction loss and flow fluctuation, supporting stable long-hour high-pressure output and higher energy efficiency.

Standard 113 Integrated Flange & Port Configuration

QX43-032R113 adopts exclusive 113 specification for mounting flange and oil port layout, matching mainstream IEC standard motors to realize direct assembly without extra adapters, saving installation space for compact hydraulic power units.

Premium Materials for Superior Durability

Gear set: Alloy steel with carburizing quenching & precision grinding for strong wear resistance;Seals: Standard NBR composite seal, optional FKM seal for high-temperature oil, working range -20℃~+80℃;Bearings: High-precision rolling bearings reduce running abrasion and extend pump service lifespan.

Low-Noise Vibration-Reduction Structure

Optimized arc tooth profile eliminates meshing impact noise, QX43-032R113 runs below 75dB(A), perfectly matching quiet precision workshop production environments.

Model Code

The model code QX43-032R113 features intuitive coding rules for global buyers to confirm parameters easily without deep hydraulic expertise:

QX = Core series code for internal meshing gear pump, different from external gear pump series;

43 = QX43 series pump housing frame size specification;

032 = Rated displacement:32cc/rev;R = Shaft rotation: Right-hand clockwise rotation (viewed from drive end);

113 = Custom configuration code covering mounting flange, oil port position and standard seal assembly.

As the mainstream model of QX43 Series, QX43-032R113 is stocked in bulk at Hengmeisi’s China factory for drop-in replacement of original imported pumps.

Product Structure

1. Core Architecture: Floating Side Plate Internal Gear Structure

Different from split-body external gear pumps, QX43-032R113 is composed of die-cast alloy housing, precision gear pair, floating compensation side plate and integrated sealing component. Floating plate automatically compensates gear clearance to restrain internal leakage under peak pressure.

2. 113 Standard Mounting Spec

Customized with 113 fixed flange and oil port layout, compatible with universal hydraulic power unit mounting standards for quick old pump replacement.

3. Key Material Upgrade

Gear assembly: Alloy steel heat treatment + ultra-precision grinding for heavy-load wear resistance;Housing: High-density cast alloy, anti-deformation under 280bar instantaneous peak pressure;Sealing system: NBR as standard, FKM optional for high-temperature working conditions.

Application Scenarios

Precision machinery: CNC grinding machines, hydraulic bending & small forging equipment

Plastic industry: Auxiliary hydraulic power for medium-small injection molding machines

Lifting equipment: Warehouse cargo lifts, stationary hydraulic lifting platforms

Automation field: Custom hydraulic fixture, compact mini hydraulic power packs

General industry: Light metallurgical auxiliary hydraulic stations, environmental sanitation small hydraulic units