Inverter Screw Air Compressor

Air demand rarely holds still through a working day. This inverter screw air compressor tracks those swings, ramping motor speed up and down to match real consumption instead of repeatedly unloading and idling. A high-performance inverter gives a wide speed range and fast response, holding delivered pressure within about +/-0.1 bar under vector control. Soft starting removes the inrush current spike of direct-on-line starting, which protects both the grid and the mechanical transmission. The adjustment range covers 0 to 100% output, and the saving is largest at partial load, where a fixed-speed machine would otherwise waste energy unloading; the tight pressure band also avoids running at a higher belt pressure than tools actually need. By modulating rather than filling and blowing off, the unit avoids the frequent load-unload cycles that wear solenoids and contactors on fixed-speed machines, another hidden saving over time. Compared with a fixed-speed unit of similar size, average energy use drops by about 20-30%. The platform spans 6.5 to 32.5 cubic meters per minute at 8 to 13 bar with 45 to 160 kW. For factories whose load swings across shifts, the VSD station buys back its premium on electricity within a short period while protecting process tools from pressure fluctuation - the double value of variable speed in industrial air supply. Because output follows demand, the unit also avoids the pressure spikes that occur when a fixed-speed machine reloads after a long unload, and the wide speed range lets one machine cover daytime peak production and night-time minimum demand without a second, smaller back-up unit.

Choosing the right inverter size is where buyers waste money: too large and the machine never works near its best efficiency point. Comps runs a pre-sales air-demand assessment based on the buyer's equipment, air volume, pressure and working conditions, and recommends the configuration that actually fits the load. The buyer receives a properly sized station instead of a generic catalog choice.

Applications

 

Plants with fluctuating air load. When demand rises and falls across shifts, VSD modulation eliminates unloaded running, which is exactly where the 20-30% saving comes from.

24-hour continuous production. Tight +/-0.1 bar pressure stability protects process equipment that cannot tolerate pressure dips between loads.

Grid-sensitive sites. Soft starting avoids inrush current, which matters where the compressor shares capacity with precision machinery on the same supply.

Customization

 

We set voltage and frequency to your local grid, select the pressure and flow tier for your measured demand, and adapt outlet connection, canopy color and control configuration. OEM/ODM branding is available, and drawing-based customization is supported.

All units are packed for export on wooden pallets with plastic foam cushioning to protect the canopy, cooler and control panel during sea freight. We support EXW, FOB, CIF and DDP terms. Payment is 30% advance before production and 70% balance before shipment. Standard units are delivered in 40 days, while customized units take about 60 days.

FAQ

 

Q1. What is the MOQ?

A.The MOQ is one unit.

Q2. How long does custom sample development take?

A.Custom sample development takes about 60 days.

Q3. Do you provide free samples?

A. We do not provide free samples. A confirmation unit is built before mass production.

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