45V50A-1C22R Eaton Vickers Vane Pump 172Bar

Product Overview

The 45V50A-1C22R is a high-performance, industrial-grade single hydraulic vane pump manufactured to elite engineering standards, delivering 100% direct interchangeability with the Eaton Vickers 45V series. Utilizing the industry-proven intra-vane architecture and a modular cartridge design, this pump is engineered specifically for continuous industrial applications demanding high volumetric efficiency, exceptionally low noise levels, and prolonged service life. Before leaving our facility, every 45V vane pump undergoes 100% full-load testing under simulated operating conditions to guarantee that its pressure pulsation resistance and performance metrics meet or exceed original OEM specifications. Whether powering new machinery or serving as a drop-in replacement during equipment overhauls, it dramatically reduces your procurement costs and cuts down on expensive downtime.

Technical Specifications

• Model Number: 45V50A-1C22R

• Brand Compatibility: 100% Interchangeable with Eaton Vickers 45V Series

• Displacement (Cam Ring 50): 162.0 ml/rev (50 USgpm @ 1200 rpm)

• Rated Operating Pressure: 172 Bar (2500 psi)

• Maximum Speed: 1800 RPM (Subject to correct inlet pressure and fluid viscosity)

• Minimum Speed: 600 RPM

• Control Type: Fixed Displacement

• Rotation (Viewed from shaft end): Clockwise (R)

• Shaft Type: No. 1 Shaft – Standard Straight Key

• Port Orientation: Outlet port 90° relative to inlet (Position C)

• Seal Material: BUNA N, compatible with standard anti-wear mineral hydraulic oils

• Approximate Weight: 34.0 kg

Key Technical Advantages

• Precision Intra-Vane Technology: The advanced hydrostatically compensated intra-vane design channels pressurized fluid to the base of the vanes, effectively balancing the outward centrifugal forces. This minimizes contact stress on the cam ring, allowing the pump to maintain exceptional volumetric efficiency even under continuous 172 bar operation.

• Modular Cartridge Kit System: The rotor, cam ring, vanes, and pressure plates are housed in a single, self-contained cartridge kit. This allows maintenance teams to service or replace the internal components in minutes without uncoupling the pump body from its mounting or detaching the hydraulic piping.

• 100% True Drop-in Interchangeability: Featuring exact SAE standard mounting flanges, precise shaft extensions, and identical port spacing, this unit perfectly mirrors the original Eaton Vickers 45V pump. Enjoy a 1:1 plug-and-play installation without the hassle of modifying brackets or fluid lines.

• Fully Hydrostatically Balanced: The internal architecture employs two diametrically opposed high-pressure and low-pressure quadrants. This configuration completely neutralizes hydraulic radial loads acting on the drive shaft and bearings, eliminating eccentric wear and vastly extending the design fatigue life.

Application Areas

Thanks to its superior flow stability and ultra-quiet operation, the 45V50A-1C22R is widely adopted in medium-to-high pressure industrial machinery requiring precise hydraulic actuation:

• Plastics Machinery: Clamping and injection circuits in plastic injection molding and blow molding machines.

• Metal Forming Equipment: Primary power units for die-casting machines, hydraulic shears, and press brakes.

• Material Handling & Presses: Balers, rubber vulcanizing presses, and automated loading/unloading robotic arms.

• Hydraulic Power Units (HPU): Centralized hydraulic systems for heavy-duty machine tools and machining centers.

Expert Maintenance Tips

• Proper Startup & Bleeding: Upon initial installation or cartridge replacement, always pre-fill the pump casing with clean hydraulic fluid and bleed trapped air via the highest system valve. Never start the pump dry. Jog the motor several times to verify the system is primed before applying full load.

• Strict Contamination Control: The micron-level internal clearances of intra-vane pumps demand pristine oil. Maintain fluid cleanliness at or better than ISO 4406 Class 18/16/13. We strongly recommend installing a 10μm absolute filter on the return line.

• Monitor Inlet Vacuum: Ensure the suction line is adequately sized and free of blockages. The inlet vacuum must never exceed 0.17 bar (5 in. Hg). Excessive suction resistance leads to severe cavitation, which will rapidly destroy the cam ring surface and generate loud, high-frequency whining noises.