Elmo Rietschle

The Elmo Rietschle brand was created when the renowned vacuum companies Elmo Technology and Rietschle joined forces within Gardner Denver, a recognized leader providing compressed air and gas, vacuum and fluid transfer technologies to industries throughout the world. We offer an outstanding choice of side channel blowers, radial fans, dry running and oil lubricated rotary vane vacuum pumps and compressors, screw vacuum pumps as well as liquid ring, rotary lobe and claw vacuum pumps and compressors.

Get in touch with us if you are looking for the best choice of products and technologies, outstanding quality and expert know-how for all applications requiring vacuum or pressure. And meet our greatest asset: a dedicated team of engineers focused on finding and delivering solutions that will make your manufacturing processes faster, safer and more cost-efficient.


When customers want to buy a pump for an application, their requirements may vary widely. Perhaps they prefer dry-running to oil-lubricated and want to replace an old system. The deciding argument might be energy conservation or low noise emissions. Maybe a particularly small footprint is important – or reducing life cycle costs. But no matter what our customers' focus is – we have the widest range of technologies for you to choose from and can satisfy all demands and requests for vacuum and pressure.

Centrifugal blowers
bullet Cast housing and impellers
bullet Robust and economical
bullet lubrication of bearings
bullet Quiet and vibration-free running
bullet Reliable and durable
bullet Speed ​​control via frequency converter possible

Side channel blowers
bullet Reliable and built-to-last, virtually maintenance-free
bullet Robust yet light-weight
bullet For use worldwide (UL/CSA/IEC/EN approval)
bullet 50/60 Hz voltage range motors
bullet ATEX 94/9 EG
bullet Adjustable speed via external or integral converter

Liquid ring blowers
bullet Constant operating characteristics by ceramic coating
bullet Maximum abrasion resistance
bullet Excellent corrosion resistance
bullet No deposits and lime scale

Rotary vane pumps and compressors
bullet Dry running and oil lubricated versions
bullet Low noise level
bullet Robust and economical
bullet Long up times
bullet Easy to operate

Rotary lobe blowers
bullet Robust and economical
bullet Dry running
bullet Modular design
bullet Available as single aggregates
bullet Available as individually engineered pump sets
bullet Frequency control available

Claw compressors and vacuums
bullet Dry, contact-free operation
bullet Process safe and reliable
bullet No oil in the compression chamber
bullet Frequency control available
bullet Low sound level
bullet No greasing of bearings

Screw vacuum pump
bullet Dry running
bullet High vacuum in one stage
bullet Application specific options
bullet Short evacuation time due to high suction capacities
bullet Insensitive against water shocks


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Unitech International (PVT) LTD was originally conceived as Unitech Engineers in 1987 as a partnership firm. From 1987 till present, we have handled several HVAC system projects throughout Pakistan and our clients have mostly been the multinationals including Nestle, Engro Foods (now Royal FrieslandCompina), PepsiCo International etc.