KYB PSVK & PSVK2 Series Pump | PSVK2-55C, PSVK2-25CK, PSVK2-27CKG | Hydraulic Main Pump for Excavator

KYB PSVK & PSVK2 Series Axial Piston Main Pumps for Excavators

Product Overview: The KYB PSVK and PSVK2 series represent the high-performance power standard for mini and compact excavator hydraulic systems worldwide. Specifically engineered for the 3-ton to 8-ton excavator class (compatible with brands like Kubota, Yanmar, and IHI), these axial piston variable displacement pumps are renowned for their superior Load Sensing (LS) control and ultra-compact architecture. Featured models like the PSVK2-55C, PSVK2-25CK, and PSVK2-27CKG-HS-7 modulate flow instantaneously based on operational demand, ensuring balanced power distribution, responsive handling, and significant energy savings during multi-function operations.

Key Technical Advantages:

• Precision Load-Sensing (LS) Control: Automatically modulates output flow to match real-time actuator demand, drastically reducing energy waste and minimizing system heat generation in tight engine compartments.

• Exceptional Power Density: Optimized for the constrained spaces of mini-excavators with an extremely lightweight and compact design, providing powerful pressure output within a minimal footprint.

• Rapid Dynamic Response: The optimized servo-variable mechanism provide agile displacement switching, enhancing machine grading speeds and operator feedback sensitivity.

• Quiet Operational Environment: Features a specialized noise-reduction valve plate design that suppresses hydraulic pulsation under high pressure, providing a quieter workspace for the operator.

• 100% OEM Standard Compatibility: Manufactured to strict KYB factory specifications, ensuring splined shafts, mounting flanges, and regulator porting align perfectly for a seamless “drop-in” replacement.

Detailed Models & Parameters:

• Core Series: KYB PSVK / PSVK2 Series.

• Representative Models: PSVK2-55C, PSVK2-25CK, PSVK2-25, PSVK2-27CKG-HS-7, PVSK2-5.

• Displacements: Ranging from 25.0 cm³/rev up to 55.0 cm³/rev.

• Pressure Ratings: Rated at 24.5 – 28 MPa (3500 – 4000 PSI) continuous; Peak capability up to 31.5 MPa.

• Rotation: R (Clockwise/CW).

• Target Applications: 3-8 ton mini excavators, small drilling rigs, landscaping machinery, and various compact construction equipment.