Product Overview
 
The CTEK Offshore W4 Diesel high-pressure air compressor is a powerful, 4-stage reciprocating unit designed for heavy-duty industrial and commercial applications where electric power may be limited. Known for its strong design, high dependability, and ease of operation, it has proven itself for years in demanding environments requiring reliable compressed air and breathing air.
 
Delivering a substantial compressed air capacity ranging from 500 to 1000 liters per minute at a maximum working pressure of 415 bar, the W4 Diesel model ensures high-volume performance. It meets rigorous standards, including breathing air quality compliant with EN 12021:2014, making it suitable for critical life-support and industrial use.
 
Technical Specifications:
The W4 Diesel High-Pressure Air Compressor is available in powerful configurations for heavy-duty needs:
Common Specifications:
Number of Stages: 4
Model Option 1:
Working Pressure: 225 Bar (3260 psi)
Free Air Delivery: 700 l/min (42 m³/h, 25 cfm) *
Motor Power: 28.5 hp
Speed: 830 rpm
Weight: 680 kg
Dimensions: 84 W x 168 L x 144 H cm
Model Option 2:
Working Pressure: 300 Bar (4350 psi)
Free Air Delivery: 900 l/min (54 m³/h, 32 cfm) *
Motor Power: 35 hp
Speed: 755 rpm
Weight: 900 kg
Dimensions: 96 W x 128 L x 172 H cm
* Free Air Delivery (FAD) based on recharging a 10 lt cylinder from 0 to 200 barg. Higher pressure models up to 415 bar are available. CTEK Offshore can change information and pictures in their brochure without any prior notice.
 
Standard Features:
P61 Purifier and Refillable Cartridge
High Pressure Particle and Oil Separator Filter
2nd, 3rd and 4th Stage Water Separator
Intercooler
Aftercooler
Priority Valve - Check Valve
Oil Level Glass
Electrostatic Painted Chassis
Safety Valve at Each Stage
Shock Mounts
Automatic Start/Stop
Automatic Discharge
Thermal Overload Protection for Electric Motor
4 Ports Filling Panel (Manometer Showing Tube Pressure, Fill Hose, Yoke and Sleeve Valve)
Breathing Air Quality Complies with EN 12021:2014
 
Optional Features:
Dual Pressure System 225-310 Bar / 3260-4500 Psi
Disposable Cartridge
Water Cooled System
 
Why Choose This Product?
 
Choose the CTEK Offshore W4 Diesel for a high-capacity, robust high-pressure air compressor designed for independent, heavy-duty operation. Delivering up to 1000 l/min of EN 12021 compliant breathing air at pressures up to 415 bar, it provides unmatched reliability for remote industrial sites, large-scale diving operations, and emergency services.
 
Its 4-stage design and durable components ensure consistent performance and operational safety in the most demanding environments, even without access to electrical power.