DAIKIN V50SAJS-ARX-20 variable piston pump technical description
- Product overview
DAIKIN Daikin V50SAJS-ARX-20 is a high-performance swash plate axial variable piston pump, using advanced hydraulic design and precision manufacturing technology, with high efficiency, low noise, long life and other distinctive characteristics.This series of pumps is specially designed for industrial hydraulic systems and is suitable for medium and high pressure hydraulic transmission fields such as injection molding machines, die-casting machines, and machine tool equipment. It can still maintain stable performance output under complex working conditions. - Technical parameters
Basic specifications
Model: V50SAJS-ARX-20
Displacement: 50 cm3/rev
Maximum working pressure: 35 MPa (continuous), 40 MPa (peak)
Rated speed: 1800 rpm
Maximum speed: 2200 rpm
Volumetric efficiency: ≥95% (under rated operating conditions)
Total efficiency: ≥90% (under rated operating conditions)
Weight: About 42 kg
Installation method: flange installation
Shaft extension form: standard flat key
Hydraulic oil requirements
Recommended viscosity: 15-160 cSt
Operating temperature range: -10℃ to 80℃
Oil cleanliness: NAS 1638 Level 8 or ISO 4406 18/16/13
Three, structural characteristics
Core component design
Variable mechanism: pressure compensated variable control is adopted, and a pilot variable piston is equipped to realize automatic adjustment of flow, and the response time is <80ms Plunger-sliding shoe assembly: spherical flow distribution structure, the surface is ultra-refined to reduce friction loss Distribution plate: optimize the design of the damping groove to effectively reduce pressure shock and noise Shell structure: high-strength cast iron shell, the internal flow channel has been optimized by CFD, and the pressure loss is reduced by 15% Sealing system Shaft seal: double lip-shaped sealing ring, superior leak-proof performance Static sealing: The full range of fluorine rubber seals are used, which are high temperature resistant and corrosion resistant. Fourth, the working principle The variable plunger pump works based on the principle of swash plate. When the drive shaft rotates, the plunger in the cylinder reciprocates with the change of the angle of the swash plate.By adjusting the inclination of the swash plate (adjustable from 0-18°), the stroke of the plunger is changed, so as to achieve stepless changes in the output flow.The built-in pressure compensator can sense the system pressure, and automatically reduces the swash plate angle when the pressure reaches the set value, reduces the flow output, realizes power matching, and achieves energy-saving effects. Five, the performance curve Flow-pressure characteristics At 1500 rpm and 28 MPa, the actual flow rate reaches 72 L/min When the pressure reaches 35 MPa, the flow retention rate is >92%
Variable response pressure setting range: 7-35 MPa adjustable
Efficiency characteristics
Under rated operating conditions, the mechanical efficiency is >93%
Within the entire working pressure range, the total efficiency curve is flat and the high efficiency zone is wide - Application areas
Main application industry
Plastic machinery: injection molding machine, extruder hydraulic system
Metal processing: die-casting machines, hydraulic machine tools, forging equipment
Construction machinery: crane, excavator hydraulic system
Industrial equipment: metallurgical equipment, mining machinery, ship deck machinery
