Name: China Bucher QX43 Double Gear Pump Suppliers - Yanhui Hydraulic
Brand: Yanhui
SKU: 305269263

Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of bucher qx43 double gear pump in China. We warmly welcome you to wholesale bulk bucher qx43 double gear pump for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.

Product Overview

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The Bucher QX43 is a premium industrial double gear pump designed for high-pressure hydraulic systems that need outstanding reliability and smooth oil flow.Using an advanced internal gear design with a specialized crescent layout,this pump delivers clean,steady power even under tough operational conditions.

Key Advantages

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Ultra-Low Noise Levels: The unique internal gear layout ensures exceptionally quiet operation, making it ideal for quiet indoor manufacturing environments.
Two Circuits in One: As a double pump, it houses two independent pumping stages driven by a single shaft. This allows it to run separate hydraulic systems or combine flows for high-speed actions.
Extended Operating Life: A specialized fluid film cushions the moving internal parts. This prevents direct metal-on-metal wear and significantly extends the life of the pump.
High Efficiency: Its smart internal design automatically adjusts to minimize oil leakage, keeping efficiency high even at maximum pressures up to 320 bar.

Technical Specifications

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Technical Parameter	Specification Value / Limit
Pump Design Type	Internal Double Gear Pump (Fixed Displacement)
Maximum Continuous Pressure	Up to 280 bar (4,060 PSI)
Maximum Intermittent Pressure	Up to 320 bar (4,640 PSI)
Displacement Range (Stage 1 - Size 4)	20.0 to 50.0 cm³/rev
Displacement Range (Stage 2 - Size 3)	10.0 to 25.0 cm³/rev
Speed Range	600 to 3,600 RPM
Operating Viscosity Range	10 to 300 mm²/s (cSt) [Up to 2,000 cSt on cold starts]
Permissible Fluid Temperature	-20°C to +80°C (-4°F to +176°F)

Applications

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Application Sector	Specific Equipment Usage	Primary Engineering Benefit
Plastics Machinery	Injection Molding Machines	Supplies a high volume of oil at low pressure for clamping, and low volume at high pressure for injecting plastic.
Metal Working	Hydraulic Presses & Shears	Maintains consistent crushing force without generating massive heat or heavy vibrations.
Material Handling	Forklifts & Heavy Lift Cranes	Powers both the main heavy lifting cylinders and the power steering systems at the same time using just one pump.
Energy & Utilities	Waste Compactors & Balers	Handles heavy, sudden loads with excellent durability during non-stop recycling processes.

Related Models

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Model Code Designation	Stage 1 Displacement	Stage 2 Displacement	Standard Shaft & Porting Configuration
QX43-020/010R	20.0 cm³/rev	10.0 cm³/rev	SAE Splined Shaft, Right-Hand (Clockwise) Rotation
QX43-032/016R	32.0 cm³/rev	16.0 cm³/rev	SAE Parallel Keyed Shaft, Right-Hand Rotation
QX43-040/020R	40.0 cm³/rev	20.0 cm³/rev	SAE Splined Shaft, Right-Hand Rotation
QX43-050/025L	50.0 cm³/rev	25.0 cm³/rev	SAE Splined Shaft, Left-Hand (Counter-Clockwise) Rotation

FAQ

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Q1: Can the oil flow from both stages of the QX43 double pump be combined? A: Yes. The oil lines from Stage 1 and Stage 2 can be joined together externally using hydraulic hoses. This provides an extra-large combined flow rate for fast machine movements, or they can be kept separate to run two functions independently.

Q2: Can I run the Bucher QX43 pump in both directions? A: No. Bucher QX pumps are built to rotate in only one direction. The direction is fixed at the factory as either Right-Hand (Clockwise) marked with an "R" in the code, or Left-Hand (Counter-Clockwise) marked with an "L". Running the pump backward will ruin the internal seals.