Leybold SCREWLINE series

The Leybold SCREWLINE series comprises robust, dry screw vacuum pumps for demanding heavy-duty and industrial applications. The contact-free screw principle with internally cooled rotors allows reliable, virtually wear-free vacuum generation without operating fluids in the process gas path.

The direct pumping path reduces deposits and makes the pumps particularly tolerant of process contamination. Contact-free shaft seals ensure long maintenance intervals, while the standard air cooling allows operation without cooling water.

The SCREWLINE offers high reliability, low operating costs and short downtimes. Depending on the application, water-cooled and ATEX-certified versions are available. RUVAC pumps can be fitted directly to increase the pumping speed.

Standard operating conditions and performance

Ambient temperature: 5 to 40 °C, depending on model and version

Nominal pumping speed: approx. 40 to 1,200 m³/h, depending on model

Achievable ultimate vacuum: down to approx. 0.01 mbar (absolute), depending on model and version

Maximum permissible operating pressure: depending on model and operating mode

Designed for dry, oil-free vacuum applications

Operating principle

The Leybold SCREWLINE series works according to the principle of dry-running screw vacuum technology. Two counter-rotating screw rotors move inside the pump housing without contact and continuously convey the gas drawn in through the compression stages. In the process, the gas is compressed step by step and then expelled through the outlet.

As the SCREWLINE series operates dry and oil-free, the conveyed medium does not come into contact with oil or lubricants in the compression chamber. The technology thus allows clean, contamination-free vacuum generation and is particularly suitable for demanding industrial and scientific applications.

The robust design and the contact-free screw principle allow reliable, durable and low-maintenance operation. The dry-running technology reduces the risk of process contamination and supports high operational reliability even in demanding applications.

The SCREWLINE series is suitable for numerous applications that require dry, oil-free vacuum, high reliability, low maintenance effort and efficient vacuum generation.

More about the operating principles of screw vacuum pumps

Features and benefits of the SCREWLINE series

The Leybold SCREWLINE series operates completely dry and oil-free. The conveyed medium therefore remains free of oil contamination, which allows clean vacuum operation.

The counter-rotating screws operate without contact with each other or with the pump housing. This reduces wear and maintenance effort and supports reliable continuous operation.

The SCREWLINE series is suitable for numerous applications that require clean, dry and oil-free vacuum, for example in the semiconductor industry, coating technology, research, analytics and general industrial vacuum technology.

With the SCREWLINE series, Leybold offers a powerful range of dry-running screw vacuum pumps developed for clean operation, high reliability and low maintenance effort. The contact-free screw technology allows oil-free vacuum generation and is particularly suitable for demanding industrial and scientific applications. Thanks to its robust design and efficient dry-running technology, the SCREWLINE series is a durable and reliable solution for numerous vacuum processes.