80YCY14‑1B 160YCY14‑1B 250YCY14‑1B Pressure‑Compensated Axial Piston Pump

Product Overview

Technical Specifications

• Model Number: 80YCY14‑1B, 160YCY14‑1B, 250YCY14‑1B
• Nominal Displacement: 80 ml/r, 160 ml/r, 250 ml/r
• Rated Working Pressure: 31.5 MPa
• Max Permissible Peak Pressure: 35 MPa
• Rated Speed: 1500 r/min
• Maximum Speed: 2200 r/min
• Control Type: Y‑Pressure‑Compensated Variable (Constant‑Power Control)
• Rotation Direction: Standard Clockwise (viewed from shaft end), F‑Counter‑Clockwise optional
• Housing Material: High‑Strength Cast Iron
• Net Weight: 80YCY14‑1B: 65KG; 160YCY14‑1B: 110KG; 250YCY14‑1B: 160KG

Key Technical Advantages

1. Hydro‑statically Balanced Tribological Pairs for Extended Service Life：The valve‑plate / cylinder‑block and slipper / swash‑plate contact surfaces are supported by a thin, continuous hydrodynamic oil‑film. Direct metal‑to‑metal dry friction is eliminated, slowing internal wear and leakage and greatly prolonging pump service life启东高压油….
2. Constant‑Power Pressure‑Compensated Control for Energy‑Saving Operation：Built‑in Y‑type variable regulator automatically reduces pump flow output when system pressure rises, keeping input driving power nearly constant. This feature prevents motor overload and cuts down wasted hydraulic power consumption.
3. Precision‑CNC Machining for 100% Direct Interchange：Mounting flange, spline shaft and port layout strictly follow OEM drawings with zero offset bolt holes. It can directly replace original YCY14‑1B pumps during equipment maintenance without re‑fabricating base frames or hydraulic pipes, shortening costly machine downtime.
4. 100% Full‑Load Bench‑Tested Before Delivery：Every finished pump undergoes complete pressure‑flow‑variable‑response testing. Factory defects including insufficient pressure, stuck‑variable action, internal leakage and abnormal noise are screened out before shipment.
5. Superior Self‑Priming Performance for Versatile Installation：Optimized suction flow channel design of the cylinder‑rotating structure delivers excellent self‑priming capacity, suitable for multiple hydraulic‑station layouts and greatly reduces cavitation risk.

Application Areas

• Main hydraulic power source for hydraulic forging presses, oil‑presses, press‑brakes and shearing machines
• Hydraulic systems for metallurgical equipment, mining machinery and heavy‑duty construction machinery
• High‑pressure hydraulic units for injection‑molding machines and rubber vulcanizing equipment
• Marine deck hydraulic systems & high‑pressure oil supply circuits for heavy‑duty machine‑tools
• Localization retrofitting of imported hydraulic stations and overhaul replacement of ageing machinery

Expert Maintenance Tips

1. Pre‑fill pump housing before first startup：Pour clean anti‑wear hydraulic oil into pump casing through drain port after long‑term storage. Never start the pump with an empty cavity, otherwise slipper scuffing damage may occur.
2. No‑load start‑up procedure required：Turn system relief valve down to minimum pressure before startup. Jog motor to verify correct shaft rotation, then raise system pressure gradually. Never start under full high‑pressure load.
3. Operating oil‑temperature control：Keep working oil temperature between 10‑65℃. Install an oil cooler if temperature exceeds 70℃, high temperature accelerates seal ageing and breaks down lubrication oil‑film.
4. Pressure‑setting limitation：Never set system safety relief valve higher than 35MPa. Long‑time over‑pressure operation will damage the variable‑regulator and ruin constant‑power control curve.
5. Hydraulic oil recommendation：Use ISO‑VG46 anti‑wear hydraulic oil, fit a 10‑μm return‑line filter, and monitor hydraulic‑oil cleanliness periodically.