Rotary Screw Vacuum Pump
The tested and proven compressor screw technology is what enables a rotary screw vacuum pump to provide higher performance, less noise and heat emissions, and requires lower maintenance. This is comparison with the traditional dry vane and oil-sealed vacuum pumps. Typically, rotary screw pumps can come with variable speed drive and electronic process controllers, making them very economical to operate. When utilised in a central vacuum system, savings in energy costs can be up to 50%.
The technology used in rotary screw vacuum pump is designed for specific industries including plastics, glass, and food packaging, requiring a maximum flow rate of 5004 m3/h and 400 mbar or below. While these pumps can handle process demand very well, operating pressures above 400 mbar will need other type of vacuum pump.
Dry Claw Vacuum Pump
As the name suggests, the main advantage of this pump over others is that it uses no lubrication in its pumping chamber, preventing any contamination during the application process. It works using two claw-shaped rotors that run in opposing directions but without touching each other. This operating principle makes dry claw vacuum pump virtually free from wear and among the quietest technology.
The volume flows for these pumps vary, ranging from 56 m3/h to 1230 m3/h. Typically, dry claw units have 140 mbar ultimate vacuum, while the recent models can reach 50 mbar. They are perfectly suited for dry pumping applications such as pneumatic conveyors, packaging lines, drying processes, moulding machines and clamping systems.
When you think that your specific application requires a rotary screw vacuum pump or a dry claw vacuum pump, GlobalVac provides a good selection of these industrial vacuum pumps. Each of our products is made according to highest industry standards for optimum performance and reliability.