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High Pressure System

High Pressure System

Salei Waterjet Company has developed an unique double pressure system, so that the high pressure pump has double pressures (generally a high pressure and a low pressure), and programs can freely call the high pressure and low pressure, which solves the defect existing all the time that the conventional waterjet made in China cuts glass only with low pressure. First, friable material is cut through by using low pressure, and then is cut with high speed by shifting to high pressure, and therefore the Salei waterjets can reach to perfect cutting situation.
The Siemens 50-horsepower (37KW) motor customized according to the performance of the oil pump can provide long-term stable and noise-free working power for the Salei water jets.
The electro-hydraulic reversing valve from SUNNY Co.USA is adopted to minimize the hydraulic impact by reversing, thereby having noiseless reversing.

1. A-class: 420Mpa (50HP)
2. B-class: 380Mpa (40HP)

Salei waterjet cutters are more professional-precision filtering by pretreated water with the water
quality up to 0.05 microns and softening by resin, which provides a better water quality condition
For high pressure pumps, thereby effectively prolonging the service lives of the high pressure that help reducing the operation cost.
Salei waterjets are more professional-the larger oil accumulator stabilizes the oil pressure and enables high pressure water output be stable, leaving a smooth cut.

Technical Data of Sl420 High-Pressure System
SL Intensifier
High-pressure pump
Siemens Motor 37KW(50hp), 380V-, 3ph, 50Hz(Could be changed by the buyer′s request) Electric Options: (Voltage/Hertz) 600/3/60, 460/2/60.145/3/50 380/3/50 380/3/60/  230/3/60, others on request
Max Pressure/Max Stable Working
420MPA(60.000psi)/380 MPA(55.000psi)
Nominal Power
Rate/Brand of Power Motor
37KW(50hp) or 30KW(40hp)/SIMEMNS oil pump motor
Max. Continuable Pressure 4200bar
Max. Stable Pressure
For Long Time Working
Max Water Flow Rate
At Max. Pressure
Max. Corifice Diameter
(In Terms of 37k)
0.36mm(0.014 inch)
Language Options on Display
(System Screen and PLC)
English/Chinese( others as request)
Nominative Motor Current 380v/50Hz 63 A
Max. Circuit Breaker at
Control System Siemens
Pneumatic Supply
Pressure Requirement
6-8 bar
Min. Inlet Cutting
Water Pressure
2.5 bar
Max. Nominal Stroke
Rate(in terms of 37KW)
150 times/min
Accumulator Volume 2.26 L
Inlet Water Filter 0.1 µm after process and softened

By absorbing merits of similar high pressure system and using new technology from abroad and China domestic, Shanghai Salei is the professional producer to develop and manufacture the family high pressure system products including H-beam (light steel, heavy steel), T-beam welding production line, C and Z purlin forming machine, and steel structure cold roll forming production line as well as CNC waterjet cutting machine. With years development, Salei high pressure system have been spread over Saudi Arabia, Russia, Middle Asian, Southeast Asian, Australia, Europe, South American, North American, etc. Look forward to establishing mutually beneficial cooperation.

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