Gardner Denver offers two types of products using screw technology. There are rotary screw pumps, which are dry running screw vacuum pumps which excel when it comes to small carbon footprint and low life cycle costs. They are mainly used in customized systems for the chemical and pharmaceutical industry and in a modified industrial version for food packaging, industrial parts cleaning and in the manufacturing of solar panels.
In many applications, compressed air has become active and in processes where air comes into contact with the process it serves, the quality of that air becomes critical.Our oil free screw compressors, or rotary screw air compressors, constitute the second type of products featuring the screw technology.
Rotary screw technology uses a displacement principle where the screw compression element main parts comprise male and female rotors that move towards each other while the volume between them and the housing decreases. The pressure ratio of a screw is dependent on the length and profile of the screw and of the form of the discharge port. The screw element is not equipped with any valves and there are no mechanical forces to create any imbalance. It can therefore work at high shaft speed and combine a large flow rate with small exterior dimensions.
Positive displacement and truck blowers, hydraulic coolers, reciprocating and rotary screw compressors, air audits, petroleum and industrial pumps, vacuum and water jetting systems, air treatment and genuine replacement parts.
Champion products include reciprocating and rotary screw air compressor systems, vacuum systems, nitrogen generation and air treatment solutions.
We manufacture, sell and service a complete range of world class rotary screw, piston, centrifugal compressors, including high-pressure, oil-free and portable models, and an extensive air treatment line.
This brand excels in high quality blowers, vacuum and fluid transfer technologies. Our products cover a unique range of technologies: radial, side channel, liquid ring, oil lubricated and dry running rotary vane, rotary lobe, claw and screw.
Based in Parma, Italy, and founded in 1941, Robuschi can provide a comprehensive range of standard low pressure positive displacement tri-lobe blowers and oil-free screw compressors (up to 2.5 bar differential), vacuum and centrifugal pumps and associated packages for the WWT, pneumatic transport and industrial sector.
Truck mounted rotary screw, rotary vane and hook and claw compressors and cargo pumps for pressure discharge of liquid and dry bulk materials.
We offer a wide range of cost efficient oil injected screw, piston and portable compressors, as well as a complete air treatment range.
Vehicle mounted compressor, hydraulic and pump generator systems used to provide pneumatic on-board power for air tools in the utility sector and for tyre inflation.
Truck mounted vacuum pumps and compressors for use in the road tanker industry. Employing various design technologies to produce the most efficient and effective loading performance.