160YCY14-1B High Pressure Piston Pump | CY MCY SCY MYCY Series

LIC Hydraulic offers the 160YCY14-1B Series, the backbone of heavy-duty Chinese high-pressure hydraulics. This axial piston pump series is renowned for its robust construction and $31.5\text{ MPa}$ continuous pressure rating. The 160YCY14-1B (Pressure Compensated) variant is specifically designed for systems requiring precision pressure holding without excessive energy waste. By automatically adjusting displacement based on system demand, it optimizes efficiency in hydraulic presses and heavy-duty industrial machinery.

Key Technical Features

• Axial Piston Reliability: Features a swashplate design with a cylinder block-on-valve plate configuration for high volumetric efficiency ($\ge 93\%$).

• Pressure Compensation (YCY): The pump automatically reduces flow to the minimum required to maintain a set pressure, significantly lowering heat generation.

• Heavy-Duty Friction Pairs: Utilizes specially treated materials for the slipper-swashplate and cylinder-valve plate interfaces to resist wear under peak $40\text{ MPa}$ loads.

• Versatile Control Portfolio: Available in Manual (MCY), Servo (SCY), Constant Power (MYCY), and Constant Pressure (YCY) versions to fit any hydraulic circuit architecture.

Expert Maintenance Tips

• Initial Priming: Always fill the pump casing with clean hydraulic oil through the highest drain port before starting. A “dry start” will damage the pistons and valve plate within seconds.

• Case Drain Management: Ensure the drain line is unrestricted and piped directly to the tank. High case pressure is the primary cause of shaft seal failure and slipper damage.

• Oil Cleanliness: Maintain filtration at ISO 4406 18/16/13 or better. High-pressure piston pumps are sensitive to fine metal particles which can score the precision-lapped surfaces.