The SWTII oil-free screw compressor series works on a dry compression principle and no lubricating oils are required throughout the entire compression process. The series is ISO8573.1 Class 0 certified and supplies 100% oil-free compressed air. It is designed with a sophisticated processing rotor, gear drive, and a reliable seal combination to provide high quality compressed air. It has long lifespan and a wide scope of applications. The unit is CAD integrated, designed, and made; it employs advanced patented VDT dew point control to monitor the temperature and humidity of the compressed air and to enhance compression efficiency. The drawer-type design enables easy maintenance and repair. The SWTII 110 to SWTII 375 compressors are designed to run on operating pressure ranging from 7.0 to 10.0kg/cm2G and are complete with water-cooling models. The discharge volume ranges from 18.7m3/min to 71.2m3/min to supply 100% oil-free clean compressed air.

Absolute oil-free : With our proprietary patented "2 vent holes" construction design, the outside of oil seal is kept at atmospheric pressure. During the unloading period of the compressor, the compression chamber is changed into a negative pressure area. One additional vent hole can suck air to prevent the lubricating oil from entering compression chamber through the oil seal. This ensures that the compressed air stays absolutely oil-free even after prolonged unloaded periods.

Unique intake and exhaust system : The air filter, motor, and cooling system have independent passages and suction cold air from lower positions while hot air exhaust is released from the top. On one hand, this can ensure that air can enter the unit from the most reasonable position and that there is excellent heat dissipation, which greatly reduces heat consumption. On the other hand, this can prevent noise from coming out of the air inlet channel. The independent air inlet box and channel design causes the intake pressure drop to minimum. The external suction position ensures that the intake air temperature is much lower than internals of the unit and improves compression efficiency.

Big and low pressure drop cooler :Increasing the cooling area not only provides a high heat exchange efficiency, but it also increases service life by leaving adequate spare space capacity. More energy saving with low pressure loss. With the plate-fin-tube cooler core construction, cooling water goes inside the pipe and compressed air goes by the shell, making it easy to clean. The drawer-type design allows for convenient to maintenance and installation.

Low vibration and noise : The compressors have been dynamically balanced before assembly, creating low levels of vibration and allowing for steady operation. The special design of the perforated plate silencer and resonant silencer reduced 15 dB(A) of the upper 1KHz noise. With high efficiency blind shutter, the unit noise levels stay below 75 dB(A).

You can check the interested models and send inquiry to us.
Model Gauge pressure(MPa) Delivery (m3/min) Motor Power (kW) Weight (kg) Dimensions L.W.H (mm)
0.88 10.1 75 2085 1830x1400x1780
0.75 15.8 90 3080 2010x1500x2160
0.88 12.8 90 3080 2010x1500x2160
0.75 17 100 3080 2010x1500x2160
0.86 10.3 75 2135 1730x1170x1680
1 10.3 75 2135 1730x1170x1680
0.75 16 90 3080 2150x1335x1890
0.86 14.1 90 3080 2150x1335x1890
1 12.9 90 3080 2150x1335x1890
0.75 17.2 100 3080 2150x1335x1890
0.86 16 100 3080 2150x1335x1890
1 14.1 100 3080 2150x1335x1890
0.86 17.1 110 3230 2150x1335x1890
1 16 110 3230 2150x1335x1890
0.75 21.6 120 4330 2900x1565x1860
1 17.1 120 3330 2150x1335x1890
0.75 23.9 132 4350 2900x1565x1860
0.86 21.6 132 4350 2900x1565x1860
0.75 26.5 145 4450 2900x1565x1860
0.86 23.8 145 4450 2900x1565x1860
1 21.5 145 4450 2900x1565x1860
0.75 28.4 160 4500 2900x1565x1860
0.86 26.4 160 4500 2900x1565x1860
1 23.8 160 4500 2900x1565x1860
0.75 32.8 180 4570 2900x1565x1860
0.86 28.4 180 4570 2900x1565x1860
1 26.4 180 4570 2900x1565x1860
0.75 36.4 200 5980 3250x1565x2140
0.86 33.2 200 5980 3250x1565x2140
0.75 39 220 6020 3250x1565x2140
0.86 36.3 220 6020 3250x1565x2140
0.75 43.6 250 6100 3250x1565x2140
0.86 41.5 250 6100 3250x1565x2140
0.75 48 270 6160 3250x1565x2140
0.86 43.5 270 6160 3250x1565x2140
0.86 48 290 6280 3250x1565x2140
0.75 53.5 300 7950 3700x2000x2395
0.86 50 300 7950 3700x2000x2395
0.75 57.2 315 8030 3700x2000x2395
0.86 53.4 315 8030 3700x2000x2395
0.75 63.7 355 8110 3700x2000x2395
0.86 60 355 8110 3700x2000x2395
0.75 70 400 8190 3700x2000x2395
0.86 67 400 8190 3700x2000x2395
0.88 10.1 75 2290 2385x1400x1780
0.75 17 100 3190 2385x1400x1780
0.88 15.7 100 3190 2470x1500x2160
0.86 10.3 75 2310 2120 x 1170 x 1680
1 10.3 75 2310 2120 x 1170 x 1680
0.75 17.2 100 3190 2600 x 1335 x 1890
0.86 15.9 100 3190 2600 x 1335 x 1890
1 14.1 100 3190 2600 x 1335 x 1890
0.75 28.4 160 4720 2900 x 1565 x 1860
0.86 26.4 160 4720 2900 x 1565 x 1860
1 23.8 160 4720 2900 x 1565 x 1860
0.75 43.6 250 6390 3250 x 1565 x 2145
0.86 41.4 250 6390 3250 x 1565 x 2145
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