CASAPPA MVP60.72D Hydraulic Piston Pump Parts
MVP60.72D is an Italian Casappa swash plate variable axial piston pump with displacement of 72cm³/rev and continuous working pressure of 280bar. It is widely applied in open hydraulic circuits of construction machinery, forklifts and loaders.
1. Basic Parameters
- Model: MVP60.72D (MVP60.72 standard version, D: standard control type)
- Displacement: 72 cm³/r (4.39 in³/r)
- Maximum continuous pressure: 280 bar (4050 psi)
- Peak pressure: 350 bar
- Maximum rated speed: 2700 rpm
- Structure: Swash plate variable displacement, axial piston, open circuit design
2. Main Component List
2.1 Pump Housing Assembly
- Front Housing: Cast iron material, equipped with driving shaft supporting bearing
- Rear Housing: Mounting base for valve plate and displacement control mechanism
- Flange Cover: Used for shaft sealing and equipment installation
- Port Flange: Connecting part for oil suction and discharge ports
2.2 Rotating Core Components
- Drive Shaft: Spline or flat key type for torque transmission
- Cylinder Block: High-pressure alloy body with 7-9 piston mounting holes
- Piston Assembly: 7-9 sets combined with piston, slipper and retainer plate
- Slipper: Hydrostatic bearing structure for friction reduction
- Retainer Plate: Fix slippers and rotate synchronously with cylinder block
- Valve Plate: Bimetallic sintered part with oil inlet and outlet ports
2.3 Displacement Control Mechanism
- Swash Plate: Swing angle range 0-21°, determines pump displacement
- Servo Piston: Drives swash plate angle adjustment
- Pressure Compensator: Constant pressure control function
- Load Sensing Valve: On-demand oil supply (optional part)
- Torque Limiter: Overload protection (optional part)
2.4 Bearing & Sealing Parts
- Main Bearings: Double angular contact ball bearings
- Thrust Bearing: Bears axial mechanical force
- Shaft Seal: Nitrile or fluorine rubber skeleton oil seal
- O-rings: Sealing elements for housing, end cover and oil ports
- Complete Seal Kit: Consumable sealing accessories set
2.5 Auxiliary Parts
- Spring Assemblies: Return spring and compensator spring
- Locating Pins & Fastening Bolts: Positioning and connection parts
- Built-in Control Oil Filter: Impurity filtration for control oil circuit
3. Common Reference Part Numbers
- Seal Kit: 62046631 / 62046950
- Valve Plate: 05583U
- Piston Assembly: MVP60.72-PST
- Drive Shaft: MVP60.72-SHAFT
- Swash Plate Assembly: MVP60.72-SWASH
4. Maintenance Instructions
- Vulnerable spare parts: Seals, valve plate, piston slipper assembly, bearings
- Assembly clearance standard: Piston and cylinder block clearance ≤ 0.02mm; Valve plate flatness ≤ 0.005mm
- Recommended hydraulic oil: ISO VG46 / VG68 anti-wear hydraulic oil, filtration accuracy ≤ 10μm
5. Applicable Equipment
- Forklift: Manitou, JLG, Doosan series
- Loader: Liugong, Lingong, XCMG series
- Engineering machinery: Excavator, crane, road construction machinery
