Two-stage Series Roots Blower

Rongheng roots blower is a highly developed tri-lobe positive displacement blower. The modular design and the wide range of accessories enable it to meet very specific customer requirements. With the development of this model, we attached the greatest importance to optimized power efficiency, a long lifetime, extremely low vibrations and low noise levels.

The blower is available as high pressure and vacuum version. Additionally, we offer a two-stage version for pressure requirements from 10.000 to 20.000 mmAq (1 to 2 Kgf/cm2). The two-stage roots blower consists of two blowers operating in series. To prevent overheating, the conveyed air will be cooled down by a water cooling system sitting between the blowers' discharge and the second blowers' inlet. The major advantage of our two-stage roots blower is reaching a comparably high pressure. Especially when having long daily operation periods, our two-stage blower still guarantees constant discharge air temperature and air flow levels, unlike centrifugal blowers, which deliver comparable pressure levels.

We generally offer additional air and water cooling systems for all blower versions. Extra cooling might be required in case the surrounding temperature exceeds certain levels or the temperature of the conveyed air may not rise above specific degrees, typically for conveying synthetic granules or plastic pellets. Available cooling systems are case external air cooling, water cooling of the blowers' housing and water cooling at the air discharge.

Further accessories include suction and discharge silencer, suction filters, check valve, flexible joints, anchor bolts, etc.

Like all our positive displacement blowers, Rongheng roots Blower conveys the medium oil-free. During operation, the rotors neither touch each other nor the housing. Therefore no lubrication is required inside the conveying chamber. The medium won't be contaminated by any lubricants or affected by potentially released wear and tear particles.