Gear oil pump QX Series QX42-025/42-025/22-008R

Product Description

Gear oil pump QX Series QX42-025/42-025/22-008R – three-in-one BUCHER replacement combined gear pump. Dual equal-flow (25cc+25cc) + micro-flow (8cc) triple-core layout, three independent circuits. Right-hand rotation, dual synchronous power supply + micro pressure stabilization – solves output imbalance and precision lack in traditional triple pumps.

Product Advantages

1. Unique Dual Equal-Flow Synchronous Power Design

The pump is equipped with two fully consistent 25cc large-flow pump cores, realizing completely synchronous and balanced dual-power output. The two main circuits can drive two sets of equipment actions simultaneously with identical flow and pressure, ensuring synchronized operation of dual-module mechanical structures. This design avoids the power deviation problem of asymmetric dual main circuits and greatly improves the coordination accuracy of multi-action equipment.

2. Independent Micro-Fine Tuning Auxiliary Circuit

Matched with an independent 8cc micro-displacement auxiliary core, the pump provides dedicated pressure holding, flow compensation and micro-precision adjustment functions for the hydraulic system. While the dual main circuits undertake high-speed and high-power driving tasks, the micro circuit independently stabilizes system pressure, compensates tiny flow loss and eliminates pressure fluctuation, effectively improving the overall stability and control precision of the composite hydraulic system.

3. Integrated Triple-Core Compact & Efficient Structure

Three pump cores are highly integrated in one-piece cast pump body, replacing the assembly of multiple single pumps. The internal optimized isolation flow channel design ensures zero mutual interference among the three circuits. The overall structure is compact and lightweight, effectively reducing equipment installation space and pipeline complexity, lowering assembly costs and failure rates compared with discrete multi-pump combinations.

4. Stable Anti-Fatigue & Low-Floss Operation Performance

Adopting upgraded low-pulsation internal meshing technology, the pump features low vibration and low noise during long-term multi-circuit alternating operation. The high-strength alloy steel gear sets and precision bearing assemblies resist fatigue wear under frequent synchronous start-stop and load switching. It has excellent oil contamination adaptability, maintaining long-term stable output accuracy for both power and control circuits in complex industrial environments.

QX61-200R66	QX61-250/42-032R83	QX41-040/32-010R44-1	QX52-050/42-032R	QX61-160R66
QX83-200/82-200R	QXV62-125R141	QX41-050R11	QXV25-006R	QX21-012/22-008/22-006R
QX63-080/51-100/51-100R	QX53-050R54	QXV63-125R	QX62-125/52-050R	QX23-008/23-005L
QX61-160/41-040L06	QX22-005R06	QXT32-012/32-012	QXV53-063R	QX42-020R29
QX62-080/43-032R	QX42-020/23-005R	QX33-012/23-005R49	QX61-200R86	QX43-020/21-012R
QX53-050/53-050R	QX83-160/61-160/61-160R09	QX33-016/33-016/33-016R	QX63-125/63-080R	QXV31-032/31-020/21-016R179
QXV85-200R	QXV55-040R12	QX52-040/23-005R12	QX41-063/31-020R29	QX63-080/51-080R

Model Code

QX42-025/42-025/22-008R follows standard BUCHER triple pump coding specifications with clear functional classification:

QX42-025: QX42 series medium-displacement pump core with 25cm³/rev displacement, used for main high-power hydraulic driving;

Dual QX42-025: Two identical main pump cores, realizing dual-circuit synchronous balanced power output;

QX22-008: QX22 ultra-fine displacement pump core with 8cm³/rev displacement, specially for system pressure stabilization and micro flow compensation;

R: Standard right-hand rotation shaft, universal specification compatible with most composite multi-circuit hydraulic equipment.

This equal-dual-power plus micro-control triple pump is a professional customized model for synchronous multi-action hydraulic systems, filling the market gap of balanced multi-circuit power and precision integrated pumps.

Product Structure

1. Balanced Triple-Core Independent Integration Structure

The integral high-rigidity cast pump body integrates two QX42 main pump cores and one QX22 auxiliary pump core. Independent sealed flow channels are arranged inside the pump body for each circuit, ensuring that the dual synchronous power circuits and micro-control circuit operate independently without cross-interference, achieving functional division and collaborative operation.

2. Dual Synchronous + Single Fine-Tuning Flow Mechanism

The two main pump cores output equal and stable fixed flow synchronously to ensure consistent equipment dual-action response; the independent micro pump core provides real-time flow compensation and pressure fine-tuning. The three-circuit collaborative mechanism simplifies external valve group configuration and optimizes multi-circuit hydraulic system control logic.

3. Graded High-Precision Wear-Resistant Configuration

Main gear assemblies adopt carburized and precisely ground alloy steel for high-load synchronous operation; micro pump core components adopt ultra-fine finishing process to ensure zero micro-leakage; matched with high-elasticity composite sealing parts and high-precision bearings, adapting to long-term multi-circuit cyclic operation.

4. Multi-Circuit Standard Interface Layout

Each hydraulic circuit is equipped with independent standardized oil inlet and outlet ports and mounting structures, fully consistent with BUCHER original dimensions. It supports direct replacement and rapid on-site piping, facilitating daily maintenance, circuit debugging and spare part replacement of multi-circuit hydraulic equipment.

Application Scenarios

Dual-synchronous automation equipment: dual-module synchronous driving hydraulic system for automated production lines;

Composite precision forming machinery: synchronous power and pressure stabilization system for multi-station pressing equipment;

Multi-circuit industrial hydraulic stations: integrated power units with dual driving and one pressure-stabilizing circuit;

Intelligent multi-action machinery: collaborative hydraulic system for equipment requiring synchronous movement and micro precision control;

Custom industrial hydraulic systems: special hydraulic equipment needing balanced dual power output and accurate flow compensation.