The Mofidi 900 L/min Oil-Free (Silent) Air Compressor delivers 900 L/min of completely oil-free compressed air with low noise, using a 500-liter tank and a 12 HP (9 kW) motor. That makes it a reliable choice wherever air purity is critical — dentistry, laboratories, pharmaceuticals and the food industry. Below are its specifications, how it works, applications, and selection and maintenance tips.
Mofidi 900 L/min Oil-Free (Silent) Air Compressor – Technical Specifications
| Specification | Value |
|---|---|
| Compressor type | Oil-free (silent), horizontal |
| Air delivery | 900 L/min |
| Tank size | 500 liters |
| Working pressure | 6–8 bar |
| Cylinders | 6 cylinders |
| Electric motor | 12 HP (9 kW), copper winding |
| Power supply | three-phase 380 V |
| Equipment | Safety valve, ball valve, check valve, pressure gauge and pressure switch |
The “900 L/min” in the name is the compressor’s air delivery (900 liters of air per minute), not the tank size. This model has a 500-liter tank.
What Is an Oil-Free Compressor and How Is It Different?
In conventional (oil-lubricated) compressors, oil lubricates the piston and cylinder, and some of it ends up in the compressed air as vapor. In the Mofidi 900 L/min oil-free air compressor, the moving parts run without oil, so the outlet air is free of oil particles and odor, and there is no oil to change or top up. This means cleaner air as well as lower service time and cost.
Why Is It Called “Silent”?
Mofidi oil-free compressors use several smaller cylinders running at a moderate speed, so they are quieter than oil-lubricated piston compressors of the same capacity and can be installed in clinics, labs or inside the workspace. In this model, 6 cylinders driven by a 12 HP motor provide 900 L/min of air.
Applications
- Dentistry, clinics and medical equipment
- Laboratories and precision instruments
- Pharmaceutical and cosmetics production
- Food, beverage and packaging industries
- Any application where oil in compressed air would damage the product or equipment
Safety and Control Equipment
- Safety valve: releases excess pressure if the pressure switch fails, protecting the tank.
- Pressure switch: starts and stops the compressor at the set pressure.
- Check valve: prevents tank air from flowing back to the cylinders.
- Ball valve and pressure gauge: for air take-off and reading tank pressure.
Horizontal or Vertical?
This is the largest Mofidi oil-free compressor, designed for high demand such as multi-chair dental clinics and sensitive production lines.
How to Choose
Add up the air consumption of all equipment that runs at the same time and add about 20–30% as a reserve. If the result is close to 900 L/min, this model is a good fit. It requires a three-phase 380 V power supply.
Maintenance Tips
- Drain condensate from the tank regularly — oil-free compressors also compress the moisture in the air.
- Keep the intake filter clean and install the unit in a cool, ventilated place.
- For moisture-sensitive applications, add an air dryer and a microfilter.
Compare Mofidi Oil-Free Compressors
| Model | Air delivery | Tank | Motor | Power |
|---|---|---|---|---|
| 150 L/min | 150 L/min | 50 or 75 L | 2 HP | Single-phase |
| 300 L/min | 300 L/min | 150 L | 4 HP | Single-phase |
| 450 L/min | 450 L/min | 250 L | 6 HP | Single-phase |
| 900 L/min | 900 L/min | 500 L | 12 HP | Three-phase |
| Vertical 150 L/min | 150 L/min | 75 L | 2 HP | Single-phase |
| Vertical 300 L/min | 300 L/min | 150 L | 4 HP | Single-phase |
| Vertical 450 L/min | 450 L/min | 250 L | 6 HP | Single-phase |
Further reading: Oil-Free Compressor: A Reliable Solution for Clean and Pure Air and our Guide to Choosing the Right Industrial Compressor.
Mofidi 900 L/min Oil-Free (Silent) Air Compressor – FAQ
What is the air delivery?
900 L/min; the tank size is 500 liters.
What is the working pressure?
6–8 bar.
Does it run on single-phase power?
No, it needs a three-phase 380 V supply.
Does it need oil?
No. It is an oil-free compressor and its outlet air is free of oil.
What is the motor power?
12 HP (9 kW).
Buy the Mofidi 900 L/min Oil-Free (Silent) Air Compressor
Contact Mofidi Air Industry for help choosing a model and for a quote. See all models in Oil-Free Compressors.
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