Products
logoRobuschi_CMYK.jpg
Back to the product list

High Vacuum Rotary Lobe Blowers RB-AV

A new range of high vacuum rotary lobe blowers, RB-AV series, are a two-lobed vacuum blowers used to increase the capacity of primary vacuum pumps, operating at their minimum suction pressure (as a booster), along with a primary vacuum system (VP). It fits pressure level lower than 33 mbar(a).

  • Vacuum up to 0.001 mbar(a)
  • Capacity from 200 to 30,000 m³/h

These boosters are usually used alongside primary vacuum systems like liquid ring, screw, vane, piston or claw vacuum pumps. Most often they are installed vertically, above the primary pump, ensuring a space-efficient installation. 

 

Ultra-Precise Rotors 

Dual rotors with micron-level clearances ensure efficient gas sealing without contact, reducing wear and boosting reliability. 

Robust Construction 

Labyrinth seals and FKM O-rings keep the chamber clean and oil-free. Advanced rotor grinding guarantees dimensional accuracy and long-lasting performance. 

Enhanced Safety 

Dual FKM shaft seals with integrated lubrication, optional water cooling, and a hardened sleeve provide maximum protection during operation. 

Material Excellence 

Cast iron casing and nodular iron rotors deliver strength and durability. Optional nickel alloy coatings and multiple sealing systems ensure corrosion resistance and adaptability for aggressive environments.
RB-AV SGA with with motor coupling

RB-AV SGA with with motor coupling

RB-AV BY with by-pass

RB-AV BY with by-pass