Gairs Oil-Free Water - Lubricated - Inverter Air Compressor
In manufacturing industries that require absolutely clean compressed air such as food, pharmaceuticals, medical, electronics, or laboratory environments, the use of oil-free air compressors is a mandatory standard. Gairs Oil-Free Water - Lubricated - Inverter Air Compressor provides a 100% clean compressed air solution, ensuring stable operation, outstanding energy savings, and long service life. It meets strict technical requirements while optimizing long-term operating costs for businesses.
Shanghai Gairs Machinery Company was established in 1998 in Shanghai, China. Specializes in researching and developing water-lubricated oil-free air compressors with the brand Gairs air compressor.
. Gairs Air Compressor only researches and produces oil-free air compressors, does not produce oil-based air compressors with low pressure, medium pressure and high pressure product lines using inverter technology for efficiency. Optimal, energy saving, high performance, usage costs and maintenance costs are much lower than other types of air compressors, especially the air compressor for blowing pet bottles of other companies using Piston technology on the market. Gair oil-free air compressor Water lubrication certified by TUV Rheinland organization in Germany.
Overview of Gairs oil-free submerged air compressors
Gairs Oil-Free Water-Injected Air Compressor is a screw air compressor that does not use lubricating oil inside the compression chamber.Instead, purified water is used for cooling, lubrication, and sealing the screw gaps. Combined with inverter technology,the system can adjust power output flexibly according to actual air demand.
Unlike traditional oil-lubricated air compressors, this system:
- Produces no oil vapor in the compressed air
- Reduce the risk of product contamination.
- Reduces the risk of product contamination
The product is researched and developed by Gairsa brand specializing in high-efficiency and environmentally friendly industrial compressed air solutions.
Typical technical specifications of Gairs oil-free air compressors
Specifications |
Detail |
|---|---|
| Brand | Gairs Shanghai – China |
| Pressure | 7 – 12.5 Bar |
| Capacity | 22 – 132 kW |
| Flow | 0.36 – 25.0 m³/min |
| Product type | Oil-free air compressor with water lubrication |
| Control type | Inverter |
| Lubrication type | By water |
| Cooling type | Cooling by air/ Cooling by water |
The specifications are optimized continuously 24/7 operation in a modern manufacturing environment.
| Specifications | Detail |
|---|---|
| Brand | Gairs Shanghai – China |
| Pressure | 7 – 12.5 Bar |
| Capacity | 22 – 132 kW |
| Flow | 0.36 – 25.0 m3/min |
| Product type | Oil-free air compressor with water lubrication |
| Control type | Inverter |
| Lubrication type | By water |
| Cooling type | Cooling by air/ Cooling by water |
| The specifications are optimized for continuous 24/7 operation in a modern manufacturing environment. |
Principle of operation
The Gairs oil-free air compressor operates based on the following principle:
- Air is drawn into the screw compressor chamber.
- Purified water is injected directly into the compression chamber for cooling, sealing, and friction reduction.
- The compressed air is then completely separated from the water.
- The inverter adjusts the motor speed according to actual air demand.
This mechanism helps to:
- Completely remove oil from compressed air.
- Reduce the heat generated during the compression process.
- Improve equipment performance and lifespan.
Key advantages of the Gairs oil-free submerged air compressor series.
- 100% oil-free compressed air (0 ppm)
- Outstanding energy savings thanks to inverter technology
- Quiet operation with low noise levels
- Reduce maintenance costs. due to minimal wear
- Environmentally friendlywith no oil emissions
- High durabilitysuitable for continuous operation
Practical applications
In practical implementation at manufacturing plants:
- Food & beverage industry: uses clean compressed air for packaging and filling processes
- Pharmaceutical & medical industry: applied in the production of medicines and medical devices
- Electronics industry: uses oil-free compressed air to prevent contamination of sensitive components
According to operating engineers, Gairs water-injected oil-free air compressors help stabilize product quality, reduce compliance risks,and significantly lower energy consumption costs.
Guide to choosing the right Gairs oil-free air compressor
When selecting a compressor, businesses should determine:
- Actual compressed air demand
- Required working pressure
- Level of clean air requirement
- Future scalability capability
Choosing the correct capacity and inverter configuration helps optimize long-term investment efficiency.
Installation & Operation Instructions
- Install the compressor in a well-ventilated and clean area
- Use purified water according to technical recommendations
- Regularly inspect the water separation system
- Perform scheduled maintenance to maintain optimal performance
Gairs oil-free submerged air compressor
Frequently Asked Questions (FAQ)
1. Is the Gairs oil-free air compressor truly oil-free?
Yes. The compressed air output achieves 0 ppm oil, meeting strict clean air standards.
2. Is water-injected technology safe?
Yes. The water is continuously circulated and strictly controlled, ensuring safe and stable operation.
3. How much energy can the inverter save?
It can save approximately 20–35% of energy consumption, depending on the operating load.
4. Is it suitable for 24/7 operation?
It is fully suitable for continuous 24/7 operation.
Why choose to buy a Gairs oil-free air compressor from Phuc Hung?
- The unit has in implementing industrial compressed air systems
- Provide professional consultation for the right solution and clean air standards
- Supply genuine Gairs products
- Clear warranty, after-sales service, and technical support policies
Are you looking for a Gairs water-injected inverter oil-free air compressor for production systems that require absolutely clean compressed air?
👉 Contact carried out maintenance and oil sludge (varnish) removal for for professional consultation, the right system configuration, and the most optimized quotation for your business.







