DURADRY – a dry screw vacuum pump for harsh industrial processes

Oil-free design for maximum process quality 
Köln, November 2024 – Leybold’s new DURADRY is a dry screw vacuum pump designed for medium-harsh industrial production processes where high temperatures, high oxygen contents and corrosive conditions prevail. Its features make it the perfect solution for applications like crystal pulling, plasma 
cleaning, heat treatment, coating and battery production. "The pump’s main advantages are its ease of operation and low maintenance requirements," observes Leybold Product Manager Darong Li, highlighting the strengths of the two models in the160 and 250 m³/h pump speed classes (a 450 size is also coming soon). The vacuum supplier rounds out its new series with a powerful 
DURADRY that’s available as an option with a full or partial housing unit. 

Low power consumption and superior durability 
“User friendliness, reliability and outstanding vacuum performance are all high on the list of 
requirements for targeted industrial sectors," explains Product Manager Darong Li. To achieve 
this, the new DURADRY models have a slim external design. The developers have also 
focused on an advanced rotor design and variable speed control (VSD). The speed control 
prevents wasted energy and ensures a high level of durability to withstand even the most 
demanding processes. Through the use of a Smart Drive, users can monitor critical parameters 
such as rotor speeds and temperatures, allowing for continuous operation. 

Quiet, ergonomic operation 
"The DURADRY’s superior efficiency is due to an improved heat regulation and dust 
absorption capacity of the screw pump," continues Product Manager Darong Li. However, its 
robust design has proven to be particularly advantageous in relevant processes. Equipped 
with sensors and a dynamic seal, the hermetically-tight system prevents the introduction of oil 
particles and contamination. Additionally the DURADRY impresses customers with its quiet, 
ergonomic operation. Noise and vibration levels in the vicinity of the vacuum pump are less 
than 64 dB. Thanks to its plug-and-play design, both models also offer various setup options 
and are intuitive and easy to operate. 

Powerful, cost-effective DURADRY system 
In addition to its DURADRY models, Leybold also offers a high-performance system with 
intelligent control options for maximum operational reliability in the applications mentioned. 
This innovative solution combines efficiency with superior dust particle tolerance. "Through 
these attributes, this package offers an attractively-priced option for demanding applications 
where optimized thermal management is also required. In addition to its robust design and 
long runtimes, customers benefit from a system with intelligent control options and real-time preventive maintenance functions – including filter and oil change warnings as well as 
temperature alarms," observes Product Manager Stephen Liu, explaining the features in more 
detail. Various optional fieldbus controls and HMI-PLC integration make the connectivity and 
control of the DURADRY system intuitively simple. The package is available in a paired-down 
industrial version or in an electronic housing. For comparison, the industrial version requires 
approximately 30 % less floor space than the electronic version with an integrated HMI 
interface that's specially designed to meet the stringent environmental requirements of the 
electrical industry. 

Important features of the DURADRY system at a glance 

-Intelligent communication with C4.0 control system

-Adjustable pump speed (250 - 4.100 m³/h)

-Temperature and flow sensors for greater safety

-Longer operating times through preventive maintenance

-Lower resource requirements

-Available in ‘industrial’ and ‘electronic’ versions. 

About Leybold 
Established in 1850, Leybold is a pioneer in vacuum innovation. Our inventions have paved the way for many modern-day vacuum technologies, including our range of next-generation vacuum products. We are recognized globally as a leader in the manufacture of vacuum pumps and systems for industrial and scientific vacuum applications, that are supported by our specialized and globally accessible Service solutions.

We are proud to live up to our brand promise - Pioneering products. Passionately applied.   
Founded in Cologne, Germany with sales and service locations around the globe. We are a part of the 
Atlas Copco Group. For more information, visit leybold.com.