Vickers 4535VQSV10 Hydraulic Series Variable Vane Pump for Crawler Bulldozers

Vickers 4535VQSV10 Hydraulic Series Variable Vane Pump For Crawler Bulldozers

The Vickers 4535VQSV10 series variable vane pump is the core power component of the hydraulic system of mobile machinery, especially suitable for heavy-duty equipment such as crawler bulldozers. As the renowned Vickers 4535VQSV10 pump (Vickers 4535VQSV10 pump), it embodies Vickers' nearly a hundred years of hydraulic technology accumulation, perfectly integrating reliability and durability Its performance is comparable to that of Yuken variable vane pump. Whether it is the earth-moving operation on muddy construction sites or the heavy-load excavation in mines, it can provide the bulldozer with strong, stable and intelligent power output, ensuring that the equipment still operates efficiently under extreme working conditions. ​
Core advantages and technological highlights

The core competitiveness of 4535VQSV10 lies in its advanced variable mechanism - as a truly efficient variable vane pump, it can automatically and steplessly adjust the output flow according to the real-time pressure of the system. When the bulldozer is in a low-pressure standby state (such as idle adjustment position), the pump body automatically reduces the displacement to the minimum value, reducing no-load loss by 40%, effectively lowering fuel consumption and system heat generation. When entering high-load operations (such as pushing hard soil and excavating ores), it can instantly switch to the maximum flow output to ensure that the shovel and the soil loosening device receive continuous power. Compared with traditional quantitative pumps, its comprehensive fuel economy is improved by 15% to 20%, making it particularly suitable for equipment that operates continuously for long periods. ​

Choosing Vickers 4535VQSV10 pump means choosing the reliability of an industry benchmark. The pump body is integrally formed with high-strength cast iron. Key components such as the rotor, blades and stator rings are made of wear-resistant alloy materials and undergo precision grinding and surface hardening treatment (with a hardness of up to HRC 58). This reinforced design enables it to withstand the intense vibration (vibration acceleration ≤10g), impact load (instantaneous pressure up to 280bar) and dust erosion during bulldozer operation - even if it works continuously for 8,000 hours in a dusty mine The volumetric efficiency of Vickers 4535VQSV10 pump can still be maintained at over 90%, which is much higher than the attenuation rate of ordinary vane pumps. ​

The inherent low-noise feature of vane pumps is fully exploited in the 4535VQSV10 pump. The optimized blade curvature design and 0.002mm precision manufacturing tolerance keep the flow pulsation within ±3%, and the operating noise is as low as 68dB (5-8dB lower than the industry average). This not only creates a more comfortable operating environment for drivers, reduces auditory fatigue caused by long-term work, but also lowers the wear and tear of hydraulic pipelines and seals due to vibration, thereby extending the overall lifespan of the system. ​

This series of pumps is equipped with high-performance pressure compensators, with a response time of only 0.2 seconds and a pressure control accuracy of ±2bar. When the bulldozer is performing fine leveling operations (such as site leveling), it can provide a stable micro-flow output, ensuring that the lifting error of the blade is ≤5mm. When switching to the powerful earth-pushing mode, it can quickly establish working pressure and avoid the decline in operation efficiency caused by power lag. This precise control not only enhances the operation accuracy but also reduces the impact damage to the oil cylinder and pipelines caused by pressure fluctuations. ​

The Vickers 4535VQSV10 continues Vickers' design concept of "compact and efficient", with a volume 15% smaller than that of products of the same displacement. It can be flexibly installed in the narrow engine compartment of a bulldozer. The modular structure makes maintenance more convenient - replacing vulnerable parts such as blades and seals does not require disassembling the entire pump body. Skilled technicians can complete maintenance within one hour. Its standardized SAE interface design also enables it to directly replace the old pump body, and its adaptability can be comparable to that of the high-quality Yuken variable vane pump. ​

• Crawler bulldozers (core applications) : Drive working devices such as blade lifting/tilting and soil loosening device extension and retraction, compatible with mainstream models with 160-320 horsepower; ​
• Wheel loader: Provides stable hydraulic power for boom lifting and bucket flipping; ​
• Auxiliary systems for construction machinery: such as the adjustment of the bulldozer blade of an excavator and the scraper of a motor grader, etc. ​
• Industrial mobile equipment: Hydraulic drive systems for port forklifts and heavy-duty traction vehicles.

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