PVXS180 Eaton Vickers Hydraulic Piston Pump 350Bar

Product Overview

The PVXS Series Heavy-Duty Axial Variable Piston Pumps (covering PVXS066, PVXS090, PVXS130, PVXS180, PVXS250, with representative code PVXS-180M04R0001R01SCVAD) are engineered for high-pressure open and closed hydraulic circuits in severe industrial applications. Manufactured strictly to Eaton Vickers OEM engineering standards, this series offers 100% drop-in mechanical, hydraulic, and control port interchangeability. Built with high-strength cast iron housings, hydrostatically balanced valve plates, thick swashplate supports, and heavy-duty roller bearings, the PVXS180 operates quietly while delivering continuous 350 bar working pressure. Every pump is subjected to 100% factory bench testing under simulated full-load pressure and dynamic control conditions to ensure an immediate, reliable replacement for original Vickers pumps.

Technical Specifications 

• Full Model Code: PVXS180 / PVXS-180 (Part Code: PVXS-180M04R0001R01SCVAD; Series includes PVXS066, PVXS090, PVXS130, PVXS250)

• Nominal Displacement: 180 cm³/rev

• Rated Operating Pressure: 350 bar (35 MPa / 5000 psi)

• Peak Pressure: 420 bar (42 MPa / 6000 psi)

• Max Rated Speed: 1800 RPM (at 1 bar absolute inlet pressure)

• Control Options: Pressure compensation & electro-hydraulic proportional control (M04 module design)

• Rotation Direction: Clockwise (CW) or Counter-Clockwise (CCW) available

• Mounting & Porting: Standard SAE mounting flange with SAE 4-bolt high-pressure flange ports

• Net Weight: Approx. 170.0 kg

Key Technical Advantages

• 100% Drop-In Eaton Vickers Fit: Mounting coordinates, drive shafts, main SAE port flanges, and pilot control connections strictly match OEM Vickers specifications for effortless field plug-and-play replacement.

• Hydrostatically Balanced High Efficiency: Features precision-ground, hydrostatically balanced valve plate and cylinder block surfaces that minimize internal fluid blow-by and sustain over 95% volumetric efficiency.

• Low-Noise Rigid Construction: Built with sound-damped heavy cast iron housings and rigid swashplate assemblies to absorb operational vibration and ensure low-noise performance in demanding environments.

• 100% Factory Simulated Load Tested: Every unit is validated on automated test benches for full-pressure holding, displacement response, and case drain leakage prior to shipment.

Application Areas

• Heavy Metallurgy & Steel Mills: Rolling mill screw-down systems, blast furnace top drives, and steelmaking converter hydraulic stations.

• Heavy Forging & Pressing Equipment: Primary drive pumps for hydraulic presses, metal balers, and heavy bending machines.

• Plastics & Injection Molding: Large injection molding machine high-pressure injection, clamping units, and blow molding systems.

• Marine & Mining Machinery: Tunnel boring machine (TBM) main thrust circuits, mining roadheaders, and marine deck winches.

Expert Maintenance Tips

• Mandatory Case Filling Before Startup: Always fill the pump housing with clean hydraulic oil (approx. 3.5 to 4.5 liters) through the uppermost drain port prior to initial startup to avoid dry friction on swashplate and slipper pads.

• Independent Low-Pressure Drain Line: Connect the case drain line directly and independently to the reservoir below fluid level. Keep case pressure under 0.5 bar to preserve shaft seal integrity.

• Maintain Fluid Cleanliness: Maintain system fluid cleanliness to ISO 4406 18/16/13 (NAS Class 7) or better. Regularly replace high-pressure filter elements to ensure responsive, trouble-free operation of the control valves.