When selecting air compressors for medium-to-large-scale factories, the transmission method and motor efficiency directly impact your electricity bill. The SED+ series direct-drive permanent magnet variable-frequency screw compressor connects the IE5 ultra-high-efficiency permanent magnet motor directly to the precision screw drive unit via a rigid coupling, achieving zero transmission loss; compared with traditional models, this configuration can reduce annual electricity costs by more than 35%.

I. Direct-drive permanent magnet variable-frequency drive: visible energy savings

The SED+ system integrates a current vector inverter with an IE5 ultra-high-efficiency permanent magnet synchronous motor, enabling real-time speed regulation based on actual air consumption to precisely match the actual air demand, thereby eliminating the waste associated with frequent loading/unloading cycles and no-load venting characteristic of traditional fixed-frequency units. The intelligent current vector algorithm supports one-touch startup without requiring manual tuning; the soft-start function eliminates inrush currents, protects the electrical system, and extends the service life of the motor.

II. High-reliability core components

· The integrated intake control valve automatically regulates pressure and protects the main engine;

· The bionic low-noise cooling fan features a dual variable-frequency noise-reduction design, ensuring continued low noise levels even under heavy loads;

· 99.99% high-precision air filtration extends the lifespan of the main unit and stabilizes compression efficiency;

· IP55 protection rating ensures stable operation in harsh industrial environments;

· The split modular design makes routine maintenance more convenient.

III. Airlink IoT (Overview)

Each SED+ unit is integrated with the Airlink IoT Industrial Internet of Things Platform, enabling remote real-time monitoring of operating parameters, instant push notifications for fault warnings, remote power-on/off control via a mobile app, inventory and customer management, as well as multi-user team permission management—ensuring complete oversight of all equipment.

IV. Technical Specifications and Applications

The SED+ series offers power outputs ranging from 37–160 kW (50–200 HP) and airflow capacities ranging from 6.3–34.5 m³/min; all models feature direct-drive, air-cooled configurations, variable-frequency starting, and operate on a 380 V three-phase power supply. These units are widely applicable in industries with stringent requirements for reliable and energy-efficient air sources—such as manufacturing, textiles, chemical engineering, energy, and pharmaceuticals—providing stable pressure output and continuous energy savings, whether in automated production lines operating continuously or in unattended workshops operating across multiple shifts.

SED+ Series Key Parameters

Contact us now to receive a customized energy-saving assessment and gain clear insight into your potential electricity savings and return on investment. Please send an email to Cio@fj-hd.com or call 0086-595-87598920.