Fixed Speed Screw Air Compressors
Fixed speed screw compressors run their motor at a constant speed and are the most economical choice when air demand is steady and close to the compressor's capacity. ALUP offers direct-drive LARGO units for heavy 24/7 duty and compact belt-driven SCK and ALLEGRETTO units for workshops.
Available models (9)
ALUP ALLEGRETTO (2.2 - 7.5 kW)
Smart & Compact Rotary Screw Solution Replacing Noisy Piston Compressors
ALUP SCK (8 - 19 kW)
Compact, Quiet Belt-Driven Screw Compressor for Workshop Manufacturing
ALUP LARGO (15 - 25 kW)
Heavy-Duty Fixed Speed Screw Compressor with Direct Gear Drive Reliability
ALUP SCK (25 - 40 kW)
Economical, High-Reliability Belt-Driven Screw Compressor for Factories
ALUP LARGO (23 - 36 kW)
Rock-Solid Direct Drive Fixed Speed Compressor for Demanding Factory Cycles
ALUP LARGO (31 - 45 kW)
Industrial Workhorse Fixed Speed Screw Compressor for Heavy Manufacturing
ALUP LARGO (55 - 90 kW)
High-Power Direct Drive Compressor for High-Volume Continuous Air Delivery
ALUP LARGO (111 - 160 kW)
High-Capacity Base-Load Industrial Compressor for Heavy Production Lines
ALUP LARGO (200 - 315 kW)
Mega-Plant Fixed Speed Screw Compressor for Maximum Volume Continuous Demand
Quick size comparison
| Model | Motor Power | Working Pressure | Free Air Delivery (FAD) |
|---|---|---|---|
| ALUP ALLEGRETTO (2.2 - 7.5 kW) | 2.2 - 7.5 kW | 8 - 10 bar | 0.24 - 0.99 m³/min |
| ALUP SCK (8 - 19 kW) | 5.5 - 15 kW | 8 - 13 bar | 0.65 - 2.15 m³/min |
| ALUP LARGO (15 - 25 kW) | 15 - 26 kW | 7.5 - 13 bar | 2.1 - 4.2 m³/min |
| ALUP SCK (25 - 40 kW) | 18.5 - 30 kW | 8 - 13 bar | 2.45 - 4.35 m³/min |
| ALUP LARGO (23 - 36 kW) | 22 - 37 kW | 7.5 - 13 bar | 3.4 - 6.1 m³/min |
| ALUP LARGO (31 - 45 kW) | 30 - 45 kW | 7.5 - 13 bar | 4.8 - 7.6 m³/min |
| ALUP LARGO (55 - 90 kW) | 55 - 90 kW | 7.5 - 13 bar | 8.5 - 15.8 m³/min |
| ALUP LARGO (111 - 160 kW) | 110 - 160 kW | 7.5 - 13 bar | 18.2 - 27.2 m³/min |
| ALUP LARGO (200 - 315 kW) | 200 - 315 kW | 7.5 - 13 bar | 32.5 - 53.5 m³/min |
Frequently Asked Questions
Fixed speed or variable speed - which should I choose?
Choose fixed speed for steady, near-full-load demand and variable speed for fluctuating demand. Many plants combine both. Send us your consumption data or use the sizing wizard for a recommendation.
Need help choosing?
Send us your required pressure, air demand or current compressor details and a Flowva Air engineer will reply with a recommendation and quotation.