Permanent Magnet VSD Compressors - Energy Saving Solutions
Permanent Magnet VSD Compressors - Energy Saving Solutions
Built for Efficiency. Designed for Africa.
At Super-Air Compressors, we understand that energy efficiency is key to reducing operating costs in compressed air systems. That’s why we offer our advanced 7.5kW screw compressor range, powered by Permanent Magnet (PM) Motors combined with Variable Speed Drive (VSD) technology, the future of energy-efficient compressed air.





Why Choose a Permanent Magnet Motor with Variable Speed Drive?
Designed specifically for African Conditions
From intense heat to pervasive dust, our compressors are purpose-built for resilience and longevity.
Decades of Know-How
Collectively, our team brings over 48 years of expertise in manufacturing, maintaining, servicing, and repairing all types of compressors. This deep institutional knowledge ensures every Supa-Air unit delivers peak performance.
Smarter, Variable Speed Control
Adjusts motor speed to match actual air demand, preventing waste.
Minimal Downtime, Maximum Support
Thanks to our extensive spare parts stock, we’re ready to serve customers countrywide, minimizing downtime and keeping your operations running smoothly.
Permanent Magnet VSD Compressor Specifications
| 0.7 MPA | 0.8 MPA | 1.0 MPA | 1.3 MPA | Dimensions (mm) | Outlet | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | m³/min | cfm | m³/min | cfm | m³/min | cfm | m³/min | cfm | L × W × H | Size |
| SAPM-7.5VSD VSD | 10HP | 7.5kW | — | — | 1.2 | 42.40 | 1 | 35.34 | 0.85 | 30.04 | 806×590×949 | G3/4" |
| SAPM-15VSD VSD | 20HP | 15kW | — | — | 2.3 | 81.27 | 2 | 70.67 | 1.7 | 60.07 | 1024×700×1030 | G3/4" |
| SAPM-22VSD VSD | 30HP | 22kW | — | — | 3.6 | 127.21 | 3.2 | 113.07 | 2.8 | 98.78 | 1140×780×1210 | G1" |
| SAPM-37VSD VSD | 50HP | 37kW | — | — | 6.2 | 219.1 | 5.6 | 197.9 | 4.6 | 159.0 | 1264×890×1300 | G1 1/2" |
| SAPM-45VSD VSD | 60HP | 45kW | — | — | 7.3 | 257.0 | 6.7 | 236.0 | 5.8 | 204.0 | 1264×890×1300 | G1 1/2" |
Energy Efficient Performance
Cuts unnecessary power use, lowering electricity bills and lifetime operating costs.
Proven Track Record
18 Years of solid performance across Africa’s most challenging environments tell the story better than words ever could.
Reduced Component Stress
Smooth startups and fewer stop/start cycles extend the life of key parts
Growing with our Customers
We’re proud, not just of our compressors, but of the relationships we’ve cultivated over the years. We’ve grown alongside our clients, delivering excellent products and steadfast support every step of the way.
Permanent Magnet VSD Compressor Specifications
| 0.7 MPA | 0.8 MPA | 1.0 MPA | 1.3 MPA | Dimensions (mm) | Outlet | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | m³/min | cfm | m³/min | cfm | m³/min | cfm | m³/min | cfm | L × W × H | Size |
| SAPM-7.5VSD VSD | 10HP | 7.5kW | — | — | 1.2 | 42.40 | 1 | 35.34 | 0.85 | 30.04 | 806×590×949 | G3/4" |
| SAPM-15VSD VSD | 20HP | 15kW | — | — | 2.3 | 81.27 | 2 | 70.67 | 1.7 | 60.07 | 1024×700×1030 | G3/4" |
| SAPM-22VSD VSD | 30HP | 22kW | — | — | 3.6 | 127.21 | 3.2 | 113.07 | 2.8 | 98.78 | 1140×780×1210 | G1" |
| SAPM-37VSD VSD | 50HP | 37kW | — | — | 6.2 | 219.1 | 5.6 | 197.9 | 4.6 | 159.0 | 1264×890×1300 | G1 1/2" |
| SAPM-45VSD VSD | 60HP | 45kW | — | — | 7.3 | 257.0 | 6.7 | 236.0 | 5.8 | 204.0 | 1264×890×1300 | G1 1/2" |
Want Help Calculating Savings or Choosing the Right Size? Contact Us Now.
- Installed in hundreds of South African facilities
- Local Service & Parts Available
Power Range & Industry Fit
Our Supa-Air Compressors span a comprehensive power range from 7.5kW up to 355kW, making them perfect for anything from small workshops to large industrial operations.

Workshop Manufacturing Plants

Automotive Industry

Food and Beverage Production

Mining & Heavy Industry

Agricultural Sector

Medical Industry
VSD Compressor Parts & Components
We stock OEM-grade parts to support long-term performance and uptime on all PM-VSD Compressor units.

CORE COMPONENTS
Air ends / Rotor
- 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
Oil / Air Coolers
- 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
- 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
Oil Filters
- Model-Specific Lubrication ensures optimum protection and longer life
- Quality OEM Filters designed for SUPA-AIR compressors
- Built to German Specifications for consistent reliability
Air Filters
- 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
Air inlet valve
- 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
Computerised Controller (PLC)
- 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
Switch Gear & Electrical Components
- Top International Brands (ABB & Siemens) used across models
- High-Quality Switch Gear for Star/Delta starting systems
Motors
- 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
- Receiver/Separator Vessel is SANS 347 compliant
- ASME Division VIII Section I Certified – meets legal standards
Oil / Air Separator
- 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
Minimum pressure valves
- Quality Minimum Pressure Valve keeps system pressure stable
- Minimal Pressure Loss for consistent performance









