Large Inverter Screw Air Compressors

When a single plant's air demand reaches hundreds of cubic meters a minute, small compressors no longer make economic sense, and the Comps large inverter screw air compressor is the heavy, electric screw unit built for that scale of central air supply. It uses large-diameter screw rotors for high displacement and efficiency, with two-stage compression that exceeds national energy-efficiency standards, and inverter control that maintains efficient operation across a wide flow range instead of only at a single design point. A multi-unit cascade function lets several large stations be scheduled intelligently to match plant demand, a central monitoring system shows real-time status across the station, and the modular design keeps maintenance manageable on machines of this size. The unit is built heavy-duty for 24-hour continuous running. The series spans roughly 26.5 to 114 m3/min at 8-13 bar with 132 to 630 kW drives, serving large central stations in auto plants, steel and metallurgy, chemical fiber, power and shipbuilding. Compared with a fleet of smaller fixed-speed machines, one or two large inverter stations plus cascade control deliver more stable pressure and better part-load efficiency for a whole plant's high flow. Large stations of this size also let a plant run only the machines needed at any moment, so on a low-load night shift one inverter station carries the demand while the others rest, instead of running several oversized fixed-speed machines into unloaded waste, with stable pressure across the whole plant.

A large screw station up to 630 kW is a major capital item, and buyers care most that each unit meets the design standard consistently. Our modern, scaled production facility with advanced production and testing equipment supports the manufacturing and rigorous testing of these large machines, so every large station, and every unit in a multi-unit package, arrives with consistent performance and build quality rather than variability.

Applications

 

Large factory central air supply. The high-flow 26.5-114 m3/min output backs a whole plant's pneumatic network.

Auto manufacturing lines. Multi-unit cascade matches fluctuating line demand and saves energy.

Steel, metallurgy and chemical fiber. The heavy-duty 24-hour rating supports continuous high-flow process air.

Power and shipbuilding. Large inverter stations deliver stable central supply for heavy industrial operations.

Customization

 

- Voltage and frequency per the plant grid

- Pressure within the 8-13 bar series

- Multi-unit cascade and central monitoring integration

- Large aftercooler, dryer and filter packages

- OEM/ODM and build-to-drawing for central-station skids

- Special high-ambient cooling packages

Export packing on a wooden pallet with plastic foam cushioning. Trade terms EXW, FOB, CIF and DDP are accepted. Payment is 30% advance and 70% before shipment. Standard units ship in about 40 days; custom units about 60 days.

FAQ

 

Q1. Do you offer discounts for large-volume orders?

A1. Yes, tiered discounts scale with order quantity for multi-station packages.

Q2. How do you ensure large units are inspected before shipment?

A2. Every unit undergoes 100% pre-shipment checks including continuous running, pressure and sealing tests.

Q3. What payment terms apply?

A3. 30% advance before production and 70% balance before shipment.

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