Resources

Download the product catalog and read technical articles on screw compressor selection.

Catalog

Speran Screw Compressor Catalog 2026

Complete product overview of SPERAN screw air compressor series, configurations, and key specifications.

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Selection guides

Screw vs Piston Air Compressors: Which Fits Industrial Duty?

Compare efficiency, maintenance, noise, and duty cycle of screw and piston compressors for workshops and factories.

PM VFD vs Fixed-Speed Screw Compressors: Energy and Pressure Stability

Understand how permanent-magnet variable-frequency drives differ from fixed-speed screw compressors in start current, pressure control, and savings.

How to Choose a Four-in-One Screw Air Compressor Station

How to select an integrated compressor, dryer, filter, and tank package for workshops and industrial projects.

IP23 vs IP54 Motors on Screw Compressors

Motor protection ratings affect where a compressor can operate. See when IP23 is sufficient and when IP54/IP55 is the safer industrial choice.

Why Airend, Motor, and Controller Brands Matter in Screw Compressors

SPERAN uses BAOSI airends, Jiangtian motors, PLT controllers, and other leading brands to improve reliability for industrial users.