Two-Stage Screw Compressors

Two-Stage Screw Compressors

Built for Africa. Engineered for Maximum Efficiency.

Super-Air Compressors is proud to introduce our range of robust energy-efficient Two-Stage Screw Compressors, purpose-built for the harsh conditions of Africa. Designed with durability, efficiency, and long-term savings in mind, our Two-Stage Screw Compressor range covers units from 55kW up to 400kW, offering a superior solution for industrial compressed air users.

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What is a Two-stage Screw Compressor?

A Two-Stage Screw Compressor uses two sets of rotors (compression stages) instead of a single pair, a low-pressure stage followed by a high-pressure stage.  Between these stages, the air is cooled, reducing the work required in the second stage of compression.

Single-Stage VS Two-Stage Screw Compressors

Not sure which is right for your site?  Use this quick comparison or Speak to our team

Key Benefits of Super-Air Two-Stage Screw Compressors

Superior Energy Efficiency

Two-stage compression, combined with inter-stage cooling, significantly reduces the power required to achieve higher pressures. This result in energy savings of up to 20% compared to conventional single-stage compressors, especially when paired with Variable Speed Drive (VSD).

Reduced Operating Temperatures

Lower discharge temperatures not only improve efficiency but also reduce stress on the compressor components, oil, and seals, extending service life and reducing maintenance costs.

VSD Technology for Maximum Control & Savings

Our Two-Stage Screw Compressors with integrated Variable Speed Drive (VSD) offer unmatched energy efficiency:

  • Soft start - No power spikes or peak demand penalties.
  • Speed adjusts automatically to air demand. No energy waste.
  • Optimised performance across varying production shifts.
  • Reduced electrical and mechanical stress.

Optimal Performance in Harsh African Conditions

Supa-Air’s two-stage design is engineered specifically for Africa’s challenging environments. Including high ambient temperatures, dusty conditions, and continuous-duty applications.

Heavy Duty Build Quality

Supa-Air units are built with oversized coolers, high-efficiency filters, and heavy-duty components. Ensuring reliability in mining, manufacturing, and industrial applications.

Two-Stage Screw Compressor Specifications
0.7 MPA 0.8 MPA 1.0 MPA Dimensions (mm) Weight (kg) dB(A)
ModelHPkW m³/mincfm m³/mincfm m³/mincfm L × W × HkgdB(A)
SA2S-55VSD75HP55KW13.33471.0212.05425.89.95351.592900×1470×1625175076
SA2S-75VSD100HP75KW15.68554.0615.19536.7512.54443.112900×1470×1625197076
SA2S-90VSD120HP90KW20.29716.9619.11675.2715.83559.363400×1757×1860267076
SA2S-110VSD150HP110KW24.30858.6623.52831.119.8699.653400×1757×1860295076
SA2S-132VSD175HP132KW28.421004.2427.44969.6122.74803.533750×1900×1980457078
SA2S-160VSD200HP160KW33.321177.5331.851125.4427.44969.613750×1900×1980475078
SA2S-185VSD250HP185KW38.221350.5337.241315.931.361108.133900×2100×1980580078
SA2S-200VSD280HP200KW42.341496.1141.161454.4237.341319.433900×2100×1980610078
SA2S-220VSD300HP220KW47.541679.8645.28160040.381426.864260×2182×2170620082
SA2S-250VSD350HP250KW51.451818.0249.981766.0844.881585.874260×2182×2170650082
SA2S-280VSD375HP280KW57.82042.455.61964.6649.51749.124260×2182×2170680082
SA2S-315VSD400HP315KW63.12229.6861.32166.0855.21950.534600×2240×2260860082
SA2S-355VSD450HP355KW732579.51722544.1761.12159.014600×2240×2260920085
Why choose Supa-Air's Two-Stage Technology?
  • Lower Energy Costs
  • Reliable Performance in Extreme Conditions
  • Reduced Maintenance & Downtime
  • Faster Return on Investment
  • Proudly Designed for Africa
Two-Stage Screw Compressor Specifications
0.7 MPA 0.8 MPA 1.0 MPA Dimensions (mm) Weight (kg) dB(A)
ModelHPkW m³/mincfm m³/mincfm m³/mincfm L × W × HkgdB(A)
SA2S-55VSD75HP55KW13.33471.0212.05425.89.95351.592900×1470×1625175076
SA2S-75VSD100HP75KW15.68554.0615.19536.7512.54443.112900×1470×1625197076
SA2S-90VSD120HP90KW20.29716.9619.11675.2715.83559.363400×1757×1860267076
SA2S-110VSD150HP110KW24.30858.6623.52831.119.8699.653400×1757×1860295076
SA2S-132VSD175HP132KW28.421004.2427.44969.6122.74803.533750×1900×1980457078
SA2S-160VSD200HP160KW33.321177.5331.851125.4427.44969.613750×1900×1980475078
SA2S-185VSD250HP185KW38.221350.5337.241315.931.361108.133900×2100×1980580078
SA2S-200VSD280HP200KW42.341496.1141.161454.4237.341319.433900×2100×1980610078
SA2S-220VSD300HP220KW47.541679.8645.28160040.381426.864260×2182×2170620082
SA2S-250VSD350HP250KW51.451818.0249.981766.0844.881585.874260×2182×2170650082
SA2S-280VSD375HP280KW57.82042.455.61964.6649.51749.124260×2182×2170680082
SA2S-315VSD400HP315KW63.12229.6861.32166.0855.21950.534600×2240×2260860082
SA2S-355VSD450HP355KW732579.51722544.1761.12159.014600×2240×2260920085

Product Range and Capabilities

Available from 55kW to 315kW, our Two-Stage Screw Compressors are purpose-built for mines.

Power Sizes: 55kW | 75kW | 90kW | 110kW | 132kW | 160kW | 200kW | 250kW | 314kW | 400kW

Options: Fixed-Speed & Variable Speed Drive (VSD) models available.

Industries using Two-Stage Screw Compressors -

Mining Operations

Manufacturing & Production Plants

Automotive & Heavy Engineering

Food and Beverage Plants

Cement & Aggregate Processing

Energy & Petrochemical Industries

Spare Parts for Two-Stage Compressors

CORE COMPONENTS

  • Double Screw Technology with oversized rotors for better airflow at lower rpm
  • New Generation 5:6 Lobe Profile Rotors for higher efficiency
  • Cooler Running Air-End thanks to reduced rpm
  • Durable Air-End with extended lifespan
  • German Air-End Technology for proven reliability
  • SKF Bearings ensure balance and smooth operation
  • Oversized Cooler Design for improved heat control
  • Cooler Operation extends part and component lifespan
  • Lower Discharge Temperature delivers higher air quality
  • Efficient Cooling reduces fan use and saves costs
     
  • Supa-46 Compressor Oil – imported from Italy and proven in performance
  • Reduces Friction & Wear to protect compressor parts
  • Meets DIN-50506 VDL Standard for reliability in all conditions

FILTRATION & FLOW

  • Model-Specific Lubrication ensures optimum protection and longer life
  • Quality OEM Filters designed for SUPA-AIR compressors
  • Built to German Specifications for consistent reliability
  • High-Efficiency Inlet Filters reduce pressure loss and improve airflow
  • Positioned at Highest Points for cleanest possible intake air
  • Advanced Filtration Technology blocks contaminants and extends compressor life
  • New Reliable Design with fewer moving parts
  • Smooth Suction Valve reduces bearing shock during load/unload
  • Modulation Control (on units above 55kW) lowers maintenance and energy costs

ELECTRICAL & CONTROL

  • Electronic Computer Controller adjusts output pressure from 4–13 Bar (model dependent)
  • Built-in Protection & Alerts for phase faults, low voltage, overheating, service intervals, low oil, overload, and sensor failure
  • Real-Time Display shows running hours, motor current, amps, load/unload status, service reminders, and pressure settings
  • Essential for Longevity – safeguards compressor performance and extends lifespan
  • Top International Brands (ABB & Siemens) used across models
  • High-Quality Switch Gear for Star/Delta starting systems
  • SKF Industrial Bearings fitted on all motors
  • Reliable Motors (380V & 525V) with IP54 enclosure options
  • High Efficiency & Energy Saving – motor kW/HP matched to each Air-End

VESSELS & VALVES

  • Receiver/Separator Vessel is SANS 347 compliant
  • ASME Division VIII Section I Certified – meets legal standards
  • Large Separator Vessel with baffle plates and directional flow
  • Efficient Pre-Separation reduces residual oil to around 3ppm
  • Improves Separator Life and lowers maintenance costs
  • Quality Minimum Pressure Valve keeps system pressure stable
  • Minimal Pressure Loss for consistent performance

Built for Demanding Environments