CHANUN SCNTC Series: High‑Efficiency & Energy‑Saving Two‑Stage Screw Air Compressor for Industrial Production

Compressed air is widely known as the “second power source” in modern industrial power systems. The stability and cost‑efficiency of compressed‑air supply directly determine manufacturing enterprises’ overall production costs and operational efficiency. For heavy‑duty and round‑the‑clock industrial working conditions, Suzhou CHANUN Screw Compressor Co., Ltd. launches the SCNTC series single‑unit two‑stage air compressor. Covering power ratings from 11 kW to 37 kW with working pressure ranging from 8 bar to 16 bar, the SCNTC series is purpose‑built for non‑stop continuous operation, delivering stable, dependable and energy‑saving compressed‑air solutions for industrial end‑users.

Core Structure & Premium Key Components

The SCNTC series integrates proven mechanical architecture with top‑tier component configurations to achieve stable performance.

First, it adopts a classic direct‑drive design for high stability and efficiency. The motor connects to the two‑stage compression main unit via a coupling, eliminating redundant transmission parts. Power is transferred in a direct manner to cut mechanical loss and boost overall transmission efficiency. This mature direct‑drive layout enables smoother equipment operation with lower noise, laying a solid foundation for long‑term continuous running.

At the heart of the machine sits the IE5 ultra‑high‑efficiency oil‑cooled permanent‑magnet synchronous motor. It reaches IP65 protection class and H‑class insulation grade, fitted with high‑temperature‑resistant permanent‑magnet steel rated for 180 °C, fundamentally mitigating demagnetization risks. Compared with conventional air‑cooled motors, the oil‑cooled heat‑dissipation system removes heat more effectively. Even under prolonged heavy‑load cycles, the motor maintains a low operating temperature, lifting energy efficiency and extending service life. Its fully‑enclosed structure copes well with harsh workshop environments featuring oil contamination, dust and humidity, securing consistent power output.

An in‑house developed touch‑screen microprocessor logic control system ensures safe and efficient performance across variable working scenarios. Built‑in self‑diagnosis and full‑range protection functions run pre‑start‑up self‑checks and monitor all safety‑related parameters in real‑time. Once faults occur, the control system sends timely maintenance alerts to prevent potential failures. The intuitive LCD panel displays real‑time operating data and stores historical logs to support predictive maintenance. Multi‑unit cascade control and remote monitoring are supported, realizing reliable 24‑hour unattended operation.

The core compression assembly features a horizontal two‑stage main unit. Low‑pressure‑stage and high‑pressure‑stage rotors are horizontally arranged on the same shaft. Air is initially compressed in the low‑pressure stage, cooled by an inter‑cooler, and then fed into the high‑pressure stage for secondary compression. Two‑stage compression lowers the pressure ratio of each stage and approaches ideal isothermal compression conditions. It reduces compression power consumption and discharge temperature, and prolongs lubricant service life.

Core Selling Points: Energy Saving, Reliability & Easy Maintenance

Multi‑faceted Energy‑Reduction Design for Remarkable Power Savings

Two‑stage compression curbs compression heat accumulation and rotor leakage losses to raise volumetric efficiency. It delivers over 15 % comprehensive energy saving compared with traditional single‑stage compressors. Equipped with advanced vector frequency‑conversion drive, the unit runs smoothly across wide speed ranges. It adjusts air output according to actual consumption, automatically reducing speed at low air demand and avoiding energy waste caused by unloading, while maintaining constant‑pressure air supply.

Zero Oil‑Leak Risk to Resolve Persistent Industry Pain Points

Critical oil circuits apply Germany‑origin Walform seamless tube technology with one‑piece formed hard pipes free of welding joints, removing risks from welding slag and hidden leakage. Combined with 24‑degree cone connections and high‑temperature‑resistant fluororubber seals, the system features outstanding vibration absorption. Fluororubber flexible joints are used at key connecting points for long‑term leak‑free performance. A stainless‑steel explosion‑proof oil‑level sight glass tolerates pressure up to 160 kg; operators can read oil levels without opening cabinet doors.

High‑Grade Configurations to Lower Total‑of‑Life Cost

Genuine Donaldson oil filters and air filters offer high filtration accuracy and large dust‑holding capacity, protecting the main rotor assembly and lubricant quality. The externally‑mounted long‑life integrated oil‑gas separator allows convenient on‑site service. Maintenance work does not require disconnecting main pipelines or replacing gaskets; one technician can finish full servicing within half an hour. Human‑oriented details include externally‑visible oil gauges and pressure gauges. The optimized oil‑gas separator base expands airflow channels and cuts pressure drop for further efficiency improvement.

Application Scenarios for Round‑the‑Clock Heavy‑Duty Operation

Thanks to outstanding reliability, the CHANUN SCNTC series fits diverse industrial sectors. It serves large manufacturing and heavy‑industry facilities coping with high‑load non‑stop production to supply stable air for pneumatic equipment. In metallurgy and chemical plants, it maintains stable operation amid high‑temperature, dusty or mildly corrosive conditions. It meets strict requirements for compressed‑air quality and continuity in automotive‑component automated production lines, and provides clean, dry compressed air for new‑energy equipment manufacturing bases.

Technical Specifications

表格

Note: Refer to official selection manuals for exact parameters; custom non‑standard solutions are available.

Conclusion

The CHANUN SCNTC two‑stage air compressor merges proven mechanical structures, cutting‑edge energy‑saving technologies and service‑friendly design, delivering cost‑effective and highly reliable compressed‑air equipment for industrial buyers. By premium product performance, CHANUN helps manufacturers cut total operating costs and boost production throughput. Contact our official channels to download detailed technical documents or arrange on‑site surveys by professional engineers.