CAT VQ Series Cartridge For Variable Delivery Hydraulic Pump Cartridge Kits

CAT VQ Series Cartridge For Variable Delivery Hydraulic Pump Cartridge Kits

In industrial hydraulic systems-such as those in plastic machinery, metallurgical equipment, and automated production lines-a variable delivery hydraulic pump adjusts its output flow based on real-time load demands, balancing power and energy efficiency. Over long-term operation, key components like the control valve and pressure sensor in the pump's variable mechanism may wear, leading to slow flow adjustment or unstable pressure. The CAT VQ Series Cartridge is designed to solve these issues, serving as a "performance restorer" for variable pumps. As a core part of the cat vq series, these cartridges integrate precision-machined valves, seals, and sensors, ensuring seamless compatibility with the pump's variable system.​

The cat vq series inherits CAT's consistent quality standards. Each cartridge undergoes 100% pressure testing (up to 25MPa) to ensure it can withstand the high-pressure environment of variable pumps. Whether used in a plastic injection molding machine's variable delivery hydraulic pump or a steel rolling mill's hydraulic system, the cat vq series cartridge maintains stable performance, restoring the pump's ability to adjust flow in 0.3 seconds-critical for precision production.​

The cat vq cartridge stands out for its ability to restore the variable delivery hydraulic pump's core function: precise flow control. Its internal valve core is ground to a surface roughness of Ra 0.01μm, ensuring smooth movement when adjusting displacement. After replacement, the pump's flow adjustment error is controlled within ±2%, avoiding uneven material feeding in injection molding machines caused by unstable flow. As part of the cat vq series, it also features a modular design-technicians can replace the cartridge without disassembling the entire pump, reducing maintenance time by 50% compared to traditional repairs.​

Another key advantage is the cat vq series's adaptability to harsh conditions. The cartridge uses high-temperature resistant seals (operating range -30°C to +120°C) and corrosion-resistant valve bodies, making it suitable for variable delivery hydraulic pump systems in humid metallurgical workshops or high-temperature die-casting environments. Its pressure sensor has a response time of less than 0.05 seconds, ensuring the pump adjusts flow in time when load changes suddenly, such as when a press machine switches from idle to working mode.​

• Precise Variable Control: The cat vq cartridge integrates a high-sensitivity pressure feedback mechanism that synchronizes with the variable delivery hydraulic pump's main pump. When the system pressure exceeds the set value, it quickly reduces the pump's displacement, preventing overload damage to pipelines and cylinders.​
• Seamless Compatibility: The cat vq series is designed to match CAT's variable pump models perfectly. Its installation dimensions and interface parameters are identical to the original parts, avoiding leaks or signal delays caused by mismatched components.​
• Durable Construction: Key components in the cat vq cartridge-such as the valve stem and spring-are made of high-strength alloy steel, with a service life of over 10,000 hours. This reduces replacement frequency, minimizing production downtime for equipment using variable delivery hydraulic pump systems.​
• Intelligent Protection: Built-in overload protection prevents the cartridge from being damaged by sudden pressure spikes, a common issue in variable delivery hydraulic pump systems when machinery starts or stops abruptly.

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