Product Overview

The Vickers 35VQ38 Cartridge Kit, including part numbers like 6J7938 and 3G7666, is a critical component designed for the VQ Series Vane Pumps. Recognized as the "heart" of the vane pump, these cartridge kits are engineered to restore hydraulic system performance to optimal levels. They offer a perfect fit and function, being completely interchangeable with original OEM parts.

Built for durability and high performance, these kits ensure efficient and reliable operation across a wide range of demanding applications, making them an indispensable solution for maintenance and repair of hydraulic systems.

Product Parameters & Advantages

• Model: 35VQ38 (specific displacement code)

• Part Numbers: 6J7938, 3G7666, and other compatible variants.

• Design: Available in 12-vane configurations for quiet industrial operations and 10-vane designs for higher pressure mobile applications.

• Pressure Rating: Up to 3000 psi (206 Bar) continuous pressure.

• Max Speed: Up to 2500 RPM.

• Flow Rate (35VQ38): Approximately 64 GPM (242 Liters/Min) at maximum speed and pressure.

• Power Input (35VQ38): Approximately 129 HP (96 KW) at maximum speed and pressure.

• Interchangeability: Fully interchangeable with original Eaton Vickers parts.

• Advanced Design: Features a balanced hydraulic design and a floating side plate structure for automatic compensation of end-face clearance, ensuring high volumetric efficiency even under high pressure.

• Enhanced Durability: Side plate constructed from dual-metal material to improve seizure resistance and extend the pump's lifespan.

• Serviceability: Cartridge design allows for easy flow capacity changes and field servicing without removing the entire pump from its mounting.

Applicable Equipment & Application Scenarios

The Vickers 35VQ38 Cartridge Kits are vital for maintaining the efficiency and longevity of hydraulic systems in a broad spectrum of heavy-duty and industrial machinery. Their robust design ensures reliable performance in demanding environments.

Applicable Equipment:

• Mining and Construction Machinery (e.g., excavators, loaders, bulldozers)

• Materials Handling Equipment (e.g., forklifts, cranes)

• Heavy Metallurgical Machinery

• Petroleum Mining Machinery

• Ship Deck Machinery

• Machine Tools and Plastic Machinery

• Agricultural and Forestry Machinery

• Various Industrial Hydraulic Power Units

Application Scenarios & Case Analysis:

These cartridge kits play a crucial role in systems requiring precise and reliable hydraulic power. Their presence ensures sustained operation in challenging conditions.

• Construction and Mining: In large excavators and loaders, Vickers VQ series pumps, equipped with these cartridge kits, provide the high pressure and flow needed for powerful digging, lifting, and propulsion. For instance, in a large-scale mining operation, a Caterpillar excavator (which uses 3G7666 part numbers) relies on these robust hydraulic pumps to withstand continuous, heavy-duty cycles, minimizing downtime and maximizing productivity.

• Industrial Manufacturing: In plastic injection molding machines or heavy-duty presses, the quiet operation and consistent performance of VQ series pumps (often with 12-vane designs) are critical. The cartridge kit ensures precise control of hydraulic cylinders, which is essential for accurate molding processes, reducing material waste and improving product quality.

• Marine Applications: On ship deck machinery, such as winches and steering gear, hydraulic reliability is paramount for safety and operation. The durable construction of these cartridge kits ensures that Vickers vane pumps can withstand corrosive environments and continuous operation at sea, providing essential power for ship maneuvers and cargo handling.

Related Products & Applications

Beyond the 35VQ38, Vickers produces a comprehensive range of cartridge kits for various V and VQ series pumps, alongside similar products from other leading hydraulic manufacturers.

• Other Vickers V/VQ/VQH Series Cartridge Kits: Includes 20V/VQ, 25V/VQ, 30V/VQ, 45V/VQ, and their high-pressure variants (20VQH, 25VQH, 35VQH, 45VQH). These cater to different flow and pressure requirements across various industrial and mobile hydraulic systems.

• Denison T6, T7, SQP Series Hydraulic Cartridges: Known for their high performance and reliability, these are often found in similar heavy machinery and industrial applications where robust hydraulic power is needed.

• Yuken PV2R Series Hydraulic Pumps: Another line of high-performance vane pumps used in a wide array of industrial hydraulic systems, offering low noise and high efficiency.

• Parker Hydraulic Components: Parker also offers a broad portfolio of hydraulic pumps and components, providing alternative solutions for diverse hydraulic system designs and maintenance needs.

Installation & Maintenance: Common Issues and Solutions

Proper installation and regular maintenance are crucial for the longevity and optimal performance of Vickers VQ series vane pump cartridge kits. While these kits are designed for ease of service, addressing common issues proactively can prevent costly downtime.

Common Issues:

• Decreased Performance: Reduced flow or pressure, often indicative of internal wear in the cartridge kit, such as worn vanes, rotor, or cam ring.

• Increased Noise: Excessive noise from the pump, which can be caused by cavitation, air ingress, worn bearings, or internal component damage within the cartridge.

• Overheating: The pump running excessively hot, potentially due to internal leakage, contamination, or worn components increasing friction.

• Leaks: Oil leaks around the pump or shaft seal, often a sign of worn seals or improper installation.

• Contamination: Presence of debris or dirty fluid, leading to accelerated wear of internal parts and potential seizure.

Solutions:

• Cartridge Kit Replacement: The primary solution for significant wear or damage. The Vickers VQ series is designed for quick and easy cartridge replacement, allowing for efficient field servicing without removing the entire pump assembly.

• Fluid Management: Regularly check and maintain hydraulic fluid cleanliness (using appropriate filtration) and ensure the correct fluid type and viscosity are used. Contaminated fluid is a leading cause of pump failure.

• System Flushing: Before installing a new cartridge kit, thoroughly flush the hydraulic system to remove any contaminants that could damage the new components.

• Proper Installation: Ensure all seals and O-rings are correctly seated and torqued according to manufacturer specifications to prevent leaks and air ingress. Refer to detailed operation guides and technical support.

• Regular Inspections: Periodically inspect the pump for signs of wear, leaks, or unusual noise. Address minor issues promptly to prevent escalation.