Compressed Air Compressor Oil free Centrifugal Air Compressor for Industry

Power: 15KW~450KW
Pressure: 0.4Mpa-1.0Mpa
Machine Type: 8m³/min~484m³/min
Warranty: One year for the air compressor and two years for the head.
Service: Configuration, Parameters can be customized.
OEM&ODM.
An oil-free centrifugal air compressor is an advanced solution designed for
industries that require clean, high-quality compressed air without the risk of
oil contamination. These industrial centrifugal air compressors are ideal for
applications where air purity is critical, such as in the food and beverage,
pharmaceutical, electronics, and chemical industries.






Compressed Air Compressor Oil free Centrifugal Air Compressor for Industry
The air-suspended centrifugal compressor is a single-stage centrifugal
compressor that does not require a gearbox, speed increaser, or coupling. It is
directly driven by a high-speed permanent magnet synchronous motor (PMSM), and
the motor is controlled by a variable frequency drive(VFD) for speed
regulation. The impeller of the compressor is directly coupled to the motor,
and the shaft is sus pended on an active air bearing.

High-speed permanent magnet synchronous motor
●lt adopts a high-efficiency permanent magnet synchronous motor (PMSM) with an
efficiency≥96%;
●Compact in size;
●lt can achieve precise speed control, up to a maximum of 100,000r/min;
●The motor shaft is directly connected to the impeller, with a trans mission
efficiency of 100%;
●The insulation class is H class (maximum temperature res istance of 170*C);
●The motor pole number is 2 poles, suitable for a power supply of AC380V/50Hz

Impeller
●lt is made of high-hardness heat-treated aviation aluminum AL7075 (aviation
aluminum) ;
●lt is precisely manufactured through 5-axis machining center, with tolerances
kept below 5/1000millimeters; The surface is smooth and clean, and it has
higher efficiency compared to cast impellers; LE+R
●lt has high strength, suitable for harsh working conditions of high
temperature and high pressure;
●lt is lightweight, with low power consumption;
●The direct connection between the impeller and the shaft can achieve a power
transmission efficiency of 100%.
Air bearing
●An air bearing utilizes high-speed centrifugal force to suspend itself.
●lt has a simple structure and does not require auxiliary devices such as
lubricating oil supply;
●lt works on a non-contact basis, with no need for maintenance or repair;
●The bearing operates without vibration.

Efficient cooling system
We use a dual-stage air-cooling and self-cooling method with the latest
technology, and set up separate air flow channels inside and outside the main
unit in a reasonable and ingenious way to maximize the cooling of the main
unit. This ensures that the blower system can still operate steadily and
reliably even in hot summers.

Features
●Contactless operation, meaning no mechanical bearings that can wear out or
fail.
●Low noise output due to minimal wear and vibration.
●High efficiency and energy-saving, thanks to minimal friction loss and the
ability to achieve precise. control through frequency conversion speed
regulation.
●High reliability with low maintenance costs and a long service life.
●The high efficiency air compressor has a simple structure, does not require
traditional mechanical bearings, and is easy to maintain.
●A substitute for Roots blower with smaller power consumption, longer service
life, and lower maintenance cost.

Product Model
Model Type Air Delivery (m-/min) Motor Power (KW)
Outlet Connection Dimension (mm) Weight (Kg)
0.4 0.6 0.7 0.8 1
ST-XLCB20 Single impeller 16 14 13 11 8
15 DN150 700×1600×1380 430
ST-XLCB30 Single impeller 32 21 20 18 13
22 DN150 700×1600×1380 430
ST-XLCB50 Single impeller 47 35 32 29 23
37 DN150 700×1600×1380 470
ST-XLCB60 Single impeller 55 41 38 35 27
45 DN200 850×1775×1670 620
ST-XLCB75 Single impeller 75 52 48 43 35
55 DN200 850x1775x1670 620
ST-XLCB100 Single impeller 95 70 63 56 46
75 DN200 850×1775× 1670 630
ST-XLCB120 Single impeller 120 86 79 71 53
90 DN200 850×1775×1670 650
ST-XLCB150 Single impeller 150 106 96 85 68
110 DN300 1250×1975×1880 1150
ST-XLCB200 Single impeller 190 141 126 110 88
160 DN300 1250×1975×1880 1200
ST-XLCB250 Single impeller 218 165 151 136 105
185 DN300 1250×1975×2080 1350
ST-XLCB300 Double impeller 248 212 189 166 135
220 DN400 1300×2475×2200 1900
ST-XLCB400 Double impeller 331 283 252 221 177
300 DN400 1300×2475×2200 2150
ST-XLCB500 Double impeller 434 339 302 265 211
365 DN500 1600×2500×2250 2600
ST-XLCB600 Double impeller 484 399 356 313 249
450 DN600 2100×2700×2250 3300

Minimum Order: 1 pieces

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