In manufacturing industries that require absolutely clean compressed air, stable operation, and energy efficiency,water-injected oil-free technology is becoming an optimal alternative to traditional oil-lubricated compressors. The SEIZE water-injected oil-free air compressor – single-stage compression – inverter delivers 100% clean air, low noise high performance, , and optimized operating costs, making it suitable for many with with highstandards.

SEIZE a China–Germany joint venture founded in Shanghai in 2009, is dedicated to the research, development, and production of energy-efficient air compressor technologiesWith a commitment to continuous innovation, SEIZE is now recognized as one of the world’s leading manufacturers of energy-saving air compressors..

SEIZE Oil-Free Air Compressor – Water-Injected Screw Series – Single-Stage Compression – Inverter (VFD)

Overview of the SEIZE Water-Injected Oil-Free Air Compressor

SEIZE has developed the water-injected oil-free air compressor series (Water Injected Oil-Free) to meet strict requirements for air quality, durability, and energy efficiency..

The single-stage compression – inverter series is designed for:

• The system needs absolutely clean air
• Businesses focus on energy savings
• Production environments operating continuously 24/7
• Applications requiring low noise and stable pressure

What is Water-Injected Oil-Free Technology?

Unlike oil-injected screw compressors:

• Pure wate is used for cooling, sealing, and lubrication
• No oil is used in the compression chamber
• The output compressed air is 100% clean and free from oil contamination

Key advantages:

• No oil vapor generated
• No need for a complex oil separation system
• Safe for industries with high air quality standards

Why Choose Water-Injected Technology for Clean Compressed Air?

• Water absorbs heat effectively → reducing compression temperature
• Reduced friction → extending the lifespan of the compressor airend
• Higher efficiency compared to some dry oil-free solutions
• Cooler and more stable compressed air output

This technology is particularly suitable for food processing, pharmaceuticals, electronics, medical applications, and cleanroom environments.

Single-Stage Compression – Optimized Design for Stable Operation

SEIZE air compressors use single-stage compression::

• Simple structure
• Fewer moving components
• High reliability
• Easy to maintain

This design allows the compressor to operate smoothly, stably, and durably over a long period of time.

Inverter Technology – Optimized Energy Efficiency

The integrated Inverter allows:

• Adjusting motor speed according to actual air demand
• Reducing idle running
• Stabilizing output pressure
• Significant energy savingsespecially when the load fluctuates

Principle of operation

• Air is drawn into the compression chamber
• The screw rotor compresses the air together with cooling water
• The water is separated and recirculated
• Clean compressed air is delivered to the system

→ A closed-loop process ensuring clean air and high efficiency.

SEIZE Stainless Steel Oil-Free Screw Airend Technology

SEIZE air compressors apply fifth-generation oil-free screw airend technology, in which the entire airend and internal system are manufactured from high-grade stainless steel alloy. This innovation represents a significant upgrade from traditional copper materials to stainless steel, greatly improving durability, corrosion resistance, and ensuring absolutely clean compressed air.

The system is designed with automatic water exchange and self-cleaning functions,keeping the compression chamber clean and ensuring hygienic and stable long-term operation. The optimized airend design has been patented, featuring large rotors, low rotational speed, and direct drive transmission without a gearbox, which reduces mechanical wear and extendsservice life compared with conventional dry oil-free screw compressors.

Thanks to its compact structure, the machine requires only minimal maintenance components such as air filters and water filters,making servicing simple and not requiring highly specialized technicians, thereby significantly reducing operating costs. In addition, high-precision CNC machining technology enables the airend to run smoothly with low vibration, low noise, and exceptional durability.

Notably, with the same power rating, water-lubricated screw compressors can produce approximately 10% higher air flow on average than conventional dry oil-free screw compressors, delivering clear economic and performance advantages for users.

Typical specifications – SEIZE non-oil submerged

 

Advantages of SEIZE Oil-Free Air Compressors – Water-Injected Series – Single-Stage Compression – Inverter

High efficiency – Energy saving – Absolutely clean compressed air

• Water-injected technology replacing oil:Pure water simultaneously performs four functions—lubrication, cooling, sealing, and noise reduction—enhancing overall operating efficiency.
• 100% oil-free compressed air:Provides absolutely clean air, meeting the strict requirements of industries such as food processing, pharmaceuticals, electronics, and medical applications.
• Environmentally friendly: Uses purified water that meets drinking-water standards as the lubrication medium, making the system safe and environmentally sustainable.
• Compact design:An integrated structure that minimizes the need for additional downstream equipment and saves installation space.
• Outstanding efficiency and energy savings: High airend efficiency eliminates the performance decline caused by wear, which is common in traditional single-screw compressors.
• Quiet operation:Low noise level of around 60 dB, suitable for installation in environments requiring quiet operation.
• Low maintenance costsOnly basic consumables such as water filters, air filters, and purified water need periodic replacement.
• Optimized cooling system:An exhaust-type cooling design distributes heat evenly and improves overall heat dissipation efficiency.
• Intelligent inverter technology:Provides soft start, flexible capacity control, and maximum energy savings.
• Direct drive transmission:Reduces mechanical losses and improves energy transmission efficiency.
• Water-cooled motor:Ensures stable operation, lower noise, and superior heat dissipation performance.