SCR Compressor


Volumetric flow:750~5200m³/H
Extreme pressure:0.5MBAR


product parts
PRODUCT details
Twin-screw high-efficiency airend● Newly developed for industrial vacuum applications. Reliable, efficient and low noise. ● Screw technology is more efficient than other technologies (rotary vane, water ring, etc.).
Specialized permanent magnet motor ● Using high coercive force and high temperature resistant permanent magnets to ensure 150℃ without demagnetization. ● Built-in PTC temperature protection to prevent demagnetization caused by high temperature due to failure.
Specialized inverter
Specialized inverter
● Synchronous, easy frequency control, good dynamic response performance, can quickly respond to a wide range of adjustment and accurately regulate the vacuum degree. ● VSD regulation start. Smooth start. Reduce the impact on the grid.
Imported filters
Imported filters
● American imported filter. ● Equipped with pre-filter design. High dust capacity. 99% filtration efficiency @5micro. Fully guarantee the safe operation of the airend.
Lube oil cooling system

Lube oil cooling system

● Uses dedicated synthetic lubricant with a life expectancy of 8,000 hours.

● Lubricant cools the airend, which is then cooled by the cooler

Instrumentation and electronic control system

Instrumentation and electronic control system

● Using instrumentation and electrical control.

● Indication of exhaust temperature, oil/air separator tank pressure,system vacuum level.

Specialized inlet valve for vaccum application
Specialized inlet valve for vaccum application
● Ultra-low throttling loss. Contributing to the overall efficiency of the vacuum pump. ● Automatic adjustment of the valve  opening according to the load capacity to automatically maintain the system vacuum within the set range.
Oil/air separator tank

Oil/air separator tank

● Using similar design like air compressor. The oil content of exhaust air is less than 3PPM.

● Tangential air inlet design with baffle plate in the inner skirt to achieve cyclone separation and impact separation effect.

No-loss direct drive

No-loss direct drive

● Using motor direct drive. Rotor speed and motor speed consistent.

● The main motor is connected to the airend with a "C" flange to make the motor and the airend a rigid body and keep the axis in alignment.


Rotary vane pump solutions

SCR permanent magnet VSD oil-injected screw vacuum pump

Equipment situation 15 x Rotary vane pumps 4 x SCR1300VSPM
Pumping speed 300m³/H *8=2400m³/H 1300m³/H*2=2600m³/H

Total power of vacuum pump

7.5kw * 15=112.5kw 22kw*4=88kw
Deep freezer 15kw * 4=60kw Not required
Energy saving situation

Fixed speed rotary vane vacuum pump.Full load after running.

VSD screw vacuum pump. Frequency range of 12%~100%. Operation can achieve 25%~50% energy saving effect.

1 year operating power

(112.5kw+60kw)*24h*350days =1.45 million kWh

88kw*24h*350 days*70%=520,000 kWh

1 year power saving


VSD screw vacuum pump can save 930,000 kWh/year

1 year savings on electricity / 930,000 kWh * 0.7 = 650,000 RMB/year
Management The number of equipment is too many, and the maintenance workload of rotary vane pump is large. It takes up a lot of labor. The equipment runs stably and requires only regular maintenance, saving a lot of labor.
Service life / Screw vacuum pump equipment is stable and has a service life of 15~20 years.
Industry Application

product parameter


Maximum pumping speed


Extreme Vacuum


Rated power




Air intake size


Exhaust size






SCR750VSPM 727 0.5 11 55-74 DN100 DN80 760 1550*1150*1255
SCR900VSPM 963 0.5 15 55-74 DN100 DN80 765 1550*1150*1255
SCR1300VSPM 1285 0.5 22 55-74 DN150 DN100 1370 2000*1420*1730
SCR1800VSPM 1751 0.5 30 65-79 DN150 DN100 1375 2000*1420*1730
SCR2000VSPM 1925 0.5 37 65-79 DN150 DN100 1382 2000*1420*1730
SCR3000VSPM 3052 0.5 45 67-80 DN200 DN150 3850 2400*2050*1935
SCR3900VSPM 3863 0.5 55 67-80 DN200 DN150 3950 2400*2050*1935
SCR4600VSPM 4523 0.5 75 72-85 DN200 DN150 4025 3000*2000*1950
SCR5200VSPM 5136 0.5 90 72-85 DN200 DN150 4050 3000*2000*1950
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