BUILT FOR AFRICA. ENGINEERED FOR MAXIMUM EFFICIENCY
TWO-STAGE SCREW
COMPRESSORS
Where single-stage reaches its limits, the SA2S range takes over. Two compression stages with inter-stage cooling. 15-20% more efficient for heavy industrial applications from 55kW to 355kW.
THE SA2S RANGE
WHEN SINGLE-STAGE
ISN'T ENOUGH
For heavy industrial applications demanding high volumes of compressed air at sustained pressure, the Supa-Air Two-stage range delivers where single-stage units reach their limits. Mining operations, cement plants, petrochemical facilities, and large manufacturing plants – this is the range built for them.
Two compression stages with inter-stage cooling reduce the work required in the second stage, delivering 15-20% greater energy efficiency than single-stage alternatives at equivalent output. Lower discharge temperatures mean less thermal stress on every component – and a longer-lasting, more cost-effice machine over its lifetime.
HOW IT WORKS
THE TWO-STAGE
ADVANTAGE
4-STAGE PROCESS
01
AIR INTAKE
Ambient air enters through the oversized intake filtration system, protecting the air end from dust and particulates in harsh industrial environments.
02
STAGE 1- LOW PRESSURE
Air is compressed to an intermediate pressure level in the first stage. This initial compression is more efficient when split across two stages rather than done in one.
03
INTER-STAGE COOLING
Partially compressed air passes through an inter-stage cooler, significantly reducing its temperature. Cooler air is dense - meaning less work is required in the second stage.
04
STAGE 2- HIGH PRESSURE
Cooled air enters the second stage for final compression to working pressure. Lower inlet temperature means this stage operates more efficiently, at lower temperatures, with less component stress.
15-20%
MORE EFFICIENT THAN
SINGLE-STAGE
35%
They physics of two-stage compression means your compressor works smartner, not harder. Inter-stage cooling reduces the density of air entering the second stage – which directly translates to less energy required to achieve the same final pressure.
- 15-20% more energy efficient than single-stage at equivalent output
- Reduced operating temperatures - less thermal stress on all components
- Lower discharge temperatures - better air quality and longer oil life
- Reduced component stress - significantly extended machine lifespan
- Superior efficiency at higher working pressures - ideal for demanding applications
KEY FEATURES
HEAVY INDUSTRY
GRADE.
Every SAPM compressor is built around the Permanent Maget AC air-end platform. Purpose-engineered for variable demand, African conditions, and maximum energy efficiency.
TWO-STAGE COMPRESSION
Air compressed in two stages with inter-stage cooling - the most efficient way to achieve high pressure compressed air. 15-20% energy saving over single-stage at equivalent output.
INTER-STAGE COOLING
Between compression stages, air passes through a dedicated cooler. Cooler air is denser and easier to compress - this is where the efficiency advantage is created and where component life is extended.
AIR-END TECHNOLOGY
Both compresstion stages use air-end technology with precision 5:6 lobe profile rotors, SKF bearings throughout. Designed for sustained high-load operation.
FIXED SPEED & VSD OPTIONS
All 13 SA2S models are available in both fixed-speed and Variable Speed Drive configurations - choose based on your demand profile and energy saving requirements.
ADVANCED PLC CONTROL
Electronic PLC controller with full protection suite: phase fualts, overheating, low oil, overload, and service reminders. Real-time monitoring of all critical parameters.
EXTREME CONDITION ENGINEERING
Purpose-built for South African mining, cement, and petrochemical environments. Rated to 50° ambient. Oversized cooling, heavy-duty filtration, SANS 347 and ASME certified.
TECHNICAL SPECIFICATIONS
Two-Stage Screw Compressor Specifications · Airflow at 0.7, 0.8 & 1.0 MPa · 380V / 525V / 50Hz
| 0.7 MPA | 0.8 MPA | 1.0 MPA | Dimensions (mm) | Weight (kg) | dB(A) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | m³/min | cfm | m³/min | cfm | m³/min | cfm | L × W × H | kg | dB(A) |
| SA2S-55VSD | 75HP | 55KW | 13.33 | 471.02 | 12.05 | 425.8 | 9.95 | 351.59 | 2900×1470×1625 | 1750 | 76 |
| SA2S-75VSD | 100HP | 75KW | 15.68 | 554.06 | 15.19 | 536.75 | 12.54 | 443.11 | 2900×1470×1625 | 1970 | 76 |
| SA2S-90VSD | 120HP | 90KW | 20.29 | 716.96 | 19.11 | 675.27 | 15.83 | 559.36 | 3400×1757×1860 | 2670 | 76 |
| SA2S-110VSD | 150HP | 110KW | 24.30 | 858.66 | 23.52 | 831.1 | 19.8 | 699.65 | 3400×1757×1860 | 2950 | 76 |
| SA2S-132VSD | 175HP | 132KW | 28.42 | 1004.24 | 27.44 | 969.61 | 22.74 | 803.53 | 3750×1900×1980 | 4570 | 78 |
| SA2S-160VSD | 200HP | 160KW | 33.32 | 1177.53 | 31.85 | 1125.44 | 27.44 | 969.61 | 3750×1900×1980 | 4750 | 78 |
| SA2S-185VSD | 250HP | 185KW | 38.22 | 1350.53 | 37.24 | 1315.9 | 31.36 | 1108.13 | 3900×2100×1980 | 5800 | 78 |
| SA2S-200VSD | 280HP | 200KW | 42.34 | 1496.11 | 41.16 | 1454.42 | 37.34 | 1319.43 | 3900×2100×1980 | 6100 | 78 |
| SA2S-220VSD | 300HP | 220KW | 47.54 | 1679.86 | 45.28 | 1600 | 40.38 | 1426.86 | 4260×2182×2170 | 6200 | 82 |
| SA2S-250VSD | 350HP | 250KW | 51.45 | 1818.02 | 49.98 | 1766.08 | 44.88 | 1585.87 | 4260×2182×2170 | 6500 | 82 |
| SA2S-280VSD | 375HP | 280KW | 57.8 | 2042.4 | 55.6 | 1964.66 | 49.5 | 1749.12 | 4260×2182×2170 | 6800 | 82 |
| SA2S-315VSD | 400HP | 315KW | 63.1 | 2229.68 | 61.3 | 2166.08 | 55.2 | 1950.53 | 4600×2240×2260 | 8600 | 82 |
| SA2S-355VSD | 450HP | 355KW | 73 | 2579.51 | 72 | 2544.17 | 61.1 | 2159.01 | 4600×2240×2260 | 9200 | 85 |
APPLICATIONS
BUILT FOR
HEAVY INDUSTRY
MINING OPERATIONS
Extreme dust, heat, and continuous high-demand duty cycles. The SA2S range is engineered for exactly these conditions with heavy-duty filtration as standard.
MANUFACTURING & PRODUCTION
Large-scale manufacturing plants with sustained high-volume air demand across multiple shifts and production lines.
AUTOMOTIVE & HEAVY ENGINEERING
High-volume compressed air for large automotive assembly, press shops, and heavy engineering facilities with consistent demand profiles.
FOOD & BEVERAGE PLANTS
Large food and beverage production facilities requiring high-volume, ISO 8573-1 compliant compressed air. Pair with Supa-Air full air treatment system.
CEMENT & AGGREGATE
Among the most demanding compressed air applications - extreme dust, continues duty, and high volume requirements. The SA2S heavy-duty build is purpose-suited.
ENERGY & PETROCHEMICAL
Critical uptime requirements, large capacity needs, and safety compliance demands. The SA2S range meets the rigorous standards these industries require.
ALSO FROM SUPA-AIR
FIXED-SPEED
FIXED-SPEED SCREW COMPRESSORS
Strong. Reliable. Affordable. Built to Last.
7.5kW to 250kW across 14 models. The proven African workhorse for constant-demand applications.
VSD
PM VSD COMPRESSORS
Maximum Efficiency. Superior Energy Savings.
7.5kW to 45kW with up to 35% energy savings. Intelligent VSD technology for variable demand applications.
AIR
AIR TREATMENT & DRYERS
Clean Air. Every Time.
Refrigerated dryers, 5-stage filtration, and pressure vessels matched to the full range. ISO 8573-1 compliant.