K3VG112 Kawasaki Variable Piston Pump 350Bar

Product Overview:

Developed to tackle the stringent demands of continuous heavy-duty, high-pressure, and long-life operation in industrial equipment, we present the industrial-grade K3VG series variable axial piston pump. Encompassing core configurations such as the K3VG112-110RS-0E00 and K3VG112-13FRS-1EH3, this series utilizes an advanced swashplate design tailored for robust open-circuit hydraulic systems. As a dedicated manufacturer of high-pressure fluid power components, we guarantee 100% drop-in interchangeability, allowing for seamless substitution of original Kawasaki K3VG series pumps. Before dispatch, every single pump is subjected to 100% simulated working condition load testing. This guarantees that its volumetric efficiency, noise levels, and compensator responsiveness flawlessly meet or exceed OEM standards under continuous 350-bar operation, providing a durable and reliable power source for your heavy industrial machinery.

Technical Specifications:

• Complete Model Codes: K3VG112-110RS-0E00, K3VG112-13FRS-1EH3

• Pump Type: Industrial Axial Piston Variable Pump, Swashplate Design (Open Circuit)

• Max Displacement: 112 cc/rev (Infinitely variable)

• Nominal Operating Pressure: 350 bar (35 MPa)

• Peak Operating Pressure: 400 bar (40 MPa)

• Maximum Speed: 2200 rpm (with boosted suction) / 1800 rpm (self-priming)

• Control Methods: Constant Pressure Compensation, Load Sensing, and Electro-Hydraulic Proportional Control

• Rotation: Right-hand (Clockwise, viewed from the drive shaft)

• Weight: Approx. 68 kg

Key Technical Advantages:

• 100% Seamless Interchangeability: Manufactured using high-precision reverse engineering to strictly adhere to original factory specifications. The mounting flanges, drive shaft dimensions, and port flanges perfectly match the Kawasaki K3VG112 parameters, ensuring rapid, modification-free installation for field engineers.

• Spherical Valve Plate & Low-Noise Profile: Engineered with an optimized spherical valve plate and a highly rigid casing structure, which dramatically improves high-speed suction characteristics. This design significantly reduces fluid pressure pulsation, resulting in exceptionally quiet operation at standard 1500/1800 rpm electric motor speeds.

• Heavy-Duty High-Pressure Rotary Group: The internal cylinder block is cast from a specialized wear-resistant alloy, paired with carbonitrided pistons and high-strength slippers. The large-area hydrostatic balance slipper design ensures outstanding wear and fatigue resistance, even under continuous 350-bar pressure and sudden 400-bar shock loads.

• 100% Simulated Working Condition Testing: We operate on a zero-tolerance batch sampling policy. Every assembled pump must complete full-load flow delivery tests, control valve step-response calibrations, and thermal rise validations on automated test rigs, ensuring out-of-the-box performance that equals or surpasses OEM standards.

Application Areas:

Specifically designed for open-loop hydraulic drive systems in stationary industrial applications. It is widely utilized as the primary hydraulic power source in metallurgical equipment (such as rolling mill hydraulic stations), large plastic injection molding machines, heavy forging presses, press brakes, die-casting machines, and marine/offshore winches and cranes.

Expert Maintenance Tips:

• Critical Initial Priming Protocol: Industrial piston pumps are highly susceptible to dry-running damage. Prior to the initial motor jog, the pump housing must be completely filled with clean hydraulic fluid through the highest case drain port to expel all trapped air. Starting without a flooded case will instantly destroy the core rotary components.

• Case Drain Pressure Management: Ensure the case drain line is adequately sized and routed directly back to the reservoir (terminating below the fluid level). Under all operating conditions (including cold starts), the internal housing pressure must never exceed 2 bar (absolute) to prevent shaft seal blowout and slipper detachment.

• Rigorous Fluid Cleanliness Standards: K3VG pumps equipped with precision servo regulators are extremely sensitive to fluid contamination. We strongly mandate maintaining a fluid cleanliness level of ISO 4406 18/16/13 or better, along with routine replacement of high-quality return and pilot filters.