CBZ2/2 Double Gear Oil Pump
4 month ago
Product details
I. Product Overview
TheCBZ2/2 Double Gear Oil Pumpis a high-performance hydraulic power unit that integrates two independent gear pump modules driven by a single shaft for synchronous operation. With its compact design and high efficiency, it is ideal for hydraulic systems requiring dual independent oil supplies or high-pressure, large-flow output. It is widely used in construction machinery, mining equipment, metallurgical systems, and industrial hydraulic applications.
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II. Key Features
1. Dual-Pump Configuration, Independent Oil Supply
• Two pump modules operate independently, supplying oil to separate hydraulic circuits without interference.
• Can also be used in parallel for flow summation, enhancing system oil supply capacity.
2. High-Pressure, Large-Flow Design
• Nominal pressure up to25 MPa(higher for some models), suitable for high-load conditions.
• Wide displacement range (e.g., CBZ2/2-20, CBZ2/2-32; numbers indicate displacement per pump module).
3. Precision-Machined Gears and Bearings
• High-quality alloy steel gears with precision grinding ensure low noise and long service life.
• Floating side plates or balanced designs automatically compensate for axial clearance, reducing leakage and improving volumetric efficiency (>90%).
4. Modular and Standardized Design
• Core components (pump body, end covers, gears) are modularized for easy maintenance and replacement.
• Interface dimensions comply with international standards (ISO, DIN), enabling direct replacement of similar products.
5. Shock-Resistant and Contamination-Tolerant
• Reinforced bearing and gear structures withstand frequent starts/stops and shock loads.
• Optimized oil passages reduce sensitivity to oil cleanliness, extending lifespan.
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III. Technical Specifications (Example)
【表格】
Parameter CBZ2/2-20 CBZ2/2-32
Nominal Displacement (mL/r) 20 32
Rated Pressure (MPa) 25 25
Max. Pressure (MPa) 31.5 31.5
Speed Range (r/min) 500–3000 500–3000
Volumetric Efficiency (%) ≥90 ≥90
Drive Power (kW) 5.5–15 8–22
Weight (kg) 25–40 35–55
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IV. Typical Applications
1. Construction Machinery
• Hydraulic main pumps for excavators, loaders, and cranes, powering travel, slewing, and boom movements.
• Concrete pump trucks and road rollers requiring high-pressure, large-flow output.
2. Mining Equipment
• Hydraulic drives for roadheaders and shearers, adapting to harsh conditions and heavy loads.
• Crushers and screeners with stable pressure and flow control.
3. Metallurgical Systems
• Hydraulic systems for continuous casting machines and rolling mills, operating in high-temperature, dusty environments.
• Blast furnace and converter hydraulic transmissions for smooth operation.
4. Industrial Hydraulics
• Power sources for injection molding and die-casting machines, enabling precise control and rapid response.
• Ship steering gear and deck machinery, resistant to marine corrosion and vibration.
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V. Selection and Usage Guidelines
1. Model Selection Based on Operating Conditions
• Determine required pressure, flow, and speed ranges; select matching displacement and power ratings.
• Consider ambient temperature and oil viscosity; opt for high-temperature or low-temperature models if needed.
2. Installation and Commissioning
• Ensure pump shaft alignment with the driving motor (≤0.1 mm) to minimize vibration and noise.
• Prime the pump by venting air through the排气阀 (air release valve) before initial startup to prevent dry friction.
• Check oil cleanliness during early operation; replace filters and hydraulic oil regularly.
3. Maintenance and Care
• Inspect bearings and gears for wear every 500 hours; replace seals as needed.
• Avoid prolonged overpressure operation to prevent pump body deformation or increased leakage.
• Drain oil completely before winter shutdown to prevent freeze damage.
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VI. Summary of Advantages
TheCBZ2/2 Double Gear Oil Pumpexcels inefficiency, reliability, and flexibility, leveraging its dual-pump integration for expanded functionality while maintaining compactness and cost-effectiveness. Its proven performance across diverse industrial applications underscores its suitability for medium-to-high-pressure hydraulic systems, making it an ideal choice for power transmission in industrial equipment.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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