Product Description

Hengmeisi focuses on the R&D and mass production of high-performance Bucher QX series high-pressure internal gear pumps, independently developing and optimizing the QX23-006R89 to solve the common defects of ordinary gear pumps such as insufficient pressure resistance, poor pressure retention and easy leakage under long-term high-pressure industrial operation. The QX23-006R89 is a classic high-precision model in the QX23 frame series, completely different from low-pressure QXV22/QXV26 pumps and conventional external gear pumps. It adopts heavy-duty conjugate internal gear meshing technology exclusive for industrial high-pressure scenarios, realizing stable high-pressure oil supply, low pulsation flow output and long-term fatigue resistance.

The QX23-006R89 has a precise nominal displacement of 6.0cm³/r, belonging to micro small-flow high-pressure specification, widely used for hydraulic pressure maintenance, power auxiliary and precise quantitative oil supply of industrial machinery. It supports 320bar continuous rated working pressure and 350bar instantaneous peak pressure, far exceeding the pressure resistance of ordinary low-pressure gear pumps. Equipped with R89 professional customized high-pressure sealing and bearing assembly, the pump effectively resists high-pressure oil impact and sealing aging, maintaining stable volumetric efficiency under long-term high-load operation. The standard clockwise rotation design adapts to mainstream industrial equipment assembly standards worldwide, with strong universality and flexible installation.

In terms of structural reliability and industrial adaptability, the QX23-006R89 adopts integral high-strength alloy pump body and reinforced thickened structural design. The upgraded internal gear pair and bearing group are specially optimized for high-pressure fatigue resistance, solving the problems of gear wear, bearing failure and pressure attenuation of ordinary gear pumps under long-term 24-hour uninterrupted operation. The exclusive R89 multi-stage high-pressure composite sealing system completely avoids internal and external leakage under extreme pressure, ensuring stable pressure holding performance of the hydraulic system. All installation flange sizes, shaft specifications and oil port positions strictly comply with original QX23 series standards, realizing 100% plug-and-play interchangeability without modifying equipment pipelines and hydraulic parameters.

Core Product Advantages

1. 320bar Ultra-high Pressure Resistance & Stable Pressure Holding

The biggest advantage of QX23-006R89 is its industrial-grade high-pressure bearing capacity. Different from low-pressure gear pumps only suitable for below 50bar working conditions, this QX23 series pump stably supports 320bar long-term continuous operation, fully meeting the high-pressure power demand of injection molding, die-casting and forging machinery. The optimized gear meshing clearance and pressure balance structure ensure no pressure drop during long-term pressure holding, effectively solving the system pressure loss and equipment jitter problems of ordinary pumps, improving the precision and stability of industrial processing equipment.

2. R89 Customized High-pressure Anti-leakage Sealing System

Equipped with exclusive R89 upgraded sealing configuration, the QX23-006R89 adopts imported high-pressure resistant PTFE and rubber composite sealing materials. The multi-stage shaft seal and end face seal design can withstand long-term high-pressure oil impact and high-temperature aging, effectively avoiding slow leakage and pressure failure of traditional gear pumps after long working hours. The dynamic and static gap compensation structure automatically adapts to thermal expansion and mechanical wear, maintaining permanent sealing tightness, greatly reducing equipment failure rate and later maintenance frequency.

3. Micro-displacement Precise Flow & Low Pulsation Output

With 6.0cc/r micro precise displacement, the QX23-006R89 provides accurate quantitative hydraulic oil supply for precision industrial hydraulic systems. Adopting optimized conjugate internal gear tooth profile, it realizes seamless smooth meshing without impact and dead volume, effectively reducing flow pulsation and hydraulic vibration. The uniform fluid compression and discharge process ensures stable flow output, avoiding processing precision deviation caused by hydraulic fluctuation. It is especially suitable for precision mold clamping, pressure maintaining and micro-action control scenarios of industrial machinery.

4. Heavy-duty Fatigue Resistance & Long Service Life

The QX23-006R89 adopts high-strength vacuum carburized alloy gear pair and upgraded heavy-duty bearing group, with ultra-high surface hardness and wear resistance. It can resist long-term high-pressure circulation impact and high-frequency continuous operation fatigue, solving the problem of rapid performance attenuation of ordinary gear pumps in industrial long-cycle working mode. The high-rigidity integral pump body structure resists deformation and vibration, ensuring consistent and stable overall performance throughout the service life, with longer durability and higher cost performance than ordinary replacement pumps.

Model Code Detailed Explanation

Each code segment of QX23-006R89 accurately defines the pump series, frame size, displacement, rotation direction and customized configuration, helping global industrial buyers quickly complete accurate model selection:

QX: Heavy-duty high-pressure internal gear pump series, specially designed for industrial high-pressure hydraulic systems;

23: QX23 standard frame size, high-rigidity structure for micro-flow high-pressure working scenarios;

006: Nominal displacement 6.0cc/r, micro precise displacement for industrial pressure maintaining and quantitative oil supply;

R: Clockwise rotation (viewed from shaft end), standard universal rotation direction for global industrial equipment;

89: R89 customized high-pressure resistant sealing & bearing assembly configuration, enhancing anti-leakage and fatigue resistance.

Product Structure & Manufacturing Technology

1. High-precision Conjugate Internal Gear Structure

The QX23-006R89 adopts industrial-grade upgraded conjugate internal gear transmission structure. The optimized logarithmic tooth profile eliminates meshing impact and fluid dead volume, realizing ultra-smooth fluid transmission. All gear components are processed by five-axis CNC precision grinding and vacuum heat treatment, with uniform and precise matching gaps, effectively controlling internal leakage under ultra-high pressure and maintaining stable volumetric efficiency. The symmetrical internal force balance design reduces mechanical vibration and running noise, ensuring stable operation of high-precision hydraulic systems.

2. R89 High-pressure Dedicated Protection System

Aiming at high-pressure industrial working conditions, the QX23-006R89 is equipped with R89 full-set customized protection configuration. The high-pressure resistant composite sealing system resists 320bar long-term pressure impact and high-temperature oil erosion, avoiding sealing failure and oil leakage. The upgraded heavy-duty bearing group is optimized for high-pressure lubrication, preventing dry friction and wear under extreme load, greatly improving the continuous operation stability and fatigue resistance of the pump.

3. Integrated High-rigidity Industrial Process

The pump body of QX23-006R89 is integrally cast with high-strength alloy material, featuring high rigidity, compression resistance and deformation resistance. The optimized internal flow channel layout reduces fluid resistance and cavitation risk, improving oil supply efficiency and pressure stability. Modular internal structure design simplifies assembly structure, reduces failure points, and realizes high-precision batch production. Strict factory pressure test and aging test ensure that each pump has consistent high-pressure resistance and operational stability, with 100% interchangeability with original parts.

Application Scope

Relying on its 320bar ultra-high pressure resistance, R89 anti-leakage performance, precise micro-flow output and long-cycle fatigue resistance, the QX23-006R89 high-pressure gear pump is widely used in heavy industrial high-pressure hydraulic systems. It is the core auxiliary hydraulic pump for injection molding machines, die-casting machines, hydraulic presses and forging equipment, mainly used for mold clamping pressure maintaining, system auxiliary power supply and precise hydraulic control. In addition, it is also applicable to automated industrial hydraulic stations, precision machinery hydraulic systems and heavy equipment pressure maintaining systems, providing stable, high-efficiency and zero-leakage hydraulic power guarantee for long-cycle industrial production.

As a professional manufacturer and supplier specializing in QX series high-pressure gear pumps, Hengmeisi implements strict full-process quality control. Every QX23-006R89 pump undergoes 320bar high-pressure pressure holding test, leakage detection and long-term aging calibration before delivery, ensuring stable performance and complete interchangeability with original parts. With factory direct sales price, reliable industrial-grade quality and comprehensive after-sales service, our products are widely recognized by global industrial equipment manufacturers, becoming the preferred high-quality replacement part for high-pressure hydraulic system maintenance and supporting.