Screw Compressor Comparison Table (15–90 kW | 10 Bar)
| Specification | 15 kW | 22 kW | 38 kW | 75 kW | 90 KW |
|---|---|---|---|---|---|
| Power (kW / HP) | 15 kW / 20 HP | 22 kW / 30 HP | 38 kW / 50 HP | 75 kW / 100 HP | 90 kW / 120 HP |
| Working Pressure | 10 Bar | 10 Bar | 10 Bar | 10 Bar | 10 Bar |
| Air Flow (FAD) | ≈ 2.0 m³/min | ≈ 3.2 m³/min | ≈ 6.0 m³/min | ≈ 12.5 m³/min | ≈ 15 m³/min |
| Air Flow (L/min) | ≈ 2,000 L/min | ≈ 3,200 L/min | ≈ 6,000 L/min | ≈ 12,500 L/min | ≈ 15000 L/min |
| Operating Mode | Continuous Duty | Continuous Duty | Continuous Duty | Continuous Duty | Continuous Duty |
| Control Type | Fixed Speed / VSD | Fixed Speed / VSD | Fixed Speed / VSD | Fixed Speed / VSD | Fixed Speed / VSD |
| Application Type | Workshops | Medium Factories | Heavy Industry | Large Industrial Plants | Very Large / Critical Industries |
| Energy Efficiency | High | Very High | Excellent | Excellent | Excellent |
| Noise Level | Low | Low | Low | Low | Low |
| Upgrade from Piston | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes |
| Integration with Dryer & Filters | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes |
| Recommended Use | Light Industrial | Production Lines | 24/7 Operation | Central Air Systems | High-Capacity Central Systems |
| Service Coverage (KSA) | Nationwide | Nationwide | Nationwide | Nationwide | Nationwide |
Technical Note:
Air flow values are approximate FAD values at 10 Bar. Exact performance may vary slightly depending on configuration (Fixed Speed or VSD), ambient conditions, and system design.
Technical Selection Guide
How to Choose the Right Screw Compressor (15–90 kW | 10 Bar)
Selecting the correct screw compressor size is critical to ensure efficient operation, stable air supply, and low energy cost. This guide helps workshops, factories, and industrial clients in Saudi Arabia choose the right compressor between 15 kW and 90 kW, all operating at 10 Bar.
Step 1: Define Your Air Demand (FAD)
Compressed air demand is measured in Free Air Delivery (FAD), usually expressed in m³/min or L/min.
Typical Air Demand by Compressor Size
| Compressor Size | 15 kW | 22 kW | 38 kW | 75 kW | 90 kW |
|---|---|---|---|---|---|
| Approx. Air Flow (10 Bar) | ≈ 2.0 m³/min | ≈ 3.2 m³/min | ≈ 6.0 m³/min | ≈ 12.5 m³/min | ≈ 15000 m³/min |
Rule of Thumb:
Always select a compressor with 10–25% higher capacity than your actual air consumption to allow for future expansion and avoid overload.
Step 2: Identify Your Application Type
Different industries require different duty cycles and air stability.
Recommended Selection by Application
- •15 kW : Workshops, tire shops, car washes, light pneumatic tools
- •22 kW : CNC machines, medium fabrication shops, packaging lines
- •38 kW : Continuous industrial production, food & beverage plants
- •75 kW : Large factories, central air systems, government & infrastructure projects
- •90 kW : Heavy industrial plants, central compressed air stations, multi-line production facilities
Step 3: Operating Hours per Day
Operating hours significantly affect compressor selection.
| Operating Hours | Recommendation |
|---|---|
| Up to 6-8 hours/day | Fixed Speed Screw Compressor |
| 6-16 hours/day | Screw Compressor with Dryer |
| 16-24 hours/day | VSD Screw Compressor |
For 24/7 operation, 38 kW and 75 kW models with VSD are strongly recommended.
Step 4: Fixed Speed vs VSD (Variable Speed Drive)
Choosing between fixed speed and VSD depends on your air demand pattern.
| Condition | Best Choice |
|---|---|
| Stable air demand | Fixed Speed |
| Fluctuating air demand | VSD |
| High energy cost concern | VSD |
| Long operating hours | VSD |
VSD compressors can reduce energy consumption by up to 30% in variable-load applications.
Step 5: System Accessories (Do Not Ignore)
To protect your compressor and equipment, consider:
- •Air Dryer – prevents moisture damage
- •Line Filters – improves air quality
- •Air Receiver Tank – stabilizes pressure and reduces load cycles
Proper system design can extend compressor life by 30–40%.
Quick Selection Table (At a Glance)
| Requirement | Recommended Size |
|---|---|
| Small workshop / tools | 15 kW |
| Medium production line | 22 kW |
| Heavy industrial use | 38 kW |
| Central air system | 75 kW |
Common Sizing Mistakes to Avoid
- •Selecting based on HP only
- •Ignoring future expansion
- •Underestimating air leaks
- •Skipping dryer and filtration
- •Choosing piston compressor for continuous duty
Contact our technical team:
Our screw compressors are supplied with Italian technology and supported by nationwide service coverage across Saudi Arabia, ensuring correct selection, installation, and long-term reliability.
Need help choosing the right size?
Contact our technical team for a free site assessment and professional recommendation.