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The Brochure

Robuschi’s RBS/AV series high vacuum blowers are engineered for demanding industrial applications requiring deep vacuum levels and high reliability. These rotary three-lobe blowers operate as boosters in vacuum systems, achieving pressures as low as 0.001 mbar(a) when paired with primary pumps. They are designed for minimal maintenance, safe operation, and long service life, making them a dependable choice for continuous-duty environments.

Access full specifications, dimensions, and performance data for the RBS/AV series.

High Vacuum Blowers Brochure

Product Overview

  • Vacuum Range: 0.001 to 20 mbar(a)
  • Suction Capacity: 300 to 9,400 m³/h
  • Applications: Suction of gases and vapours
  • Design: No sliding parts, reducing wear and extending service life
  • Maintenance: Minimal servicing required; easy access for inspections
  • Safety: ATEX 2 version available for hazardous environments

The RBS/AV blowers are typically installed vertically above the primary vacuum pump (e.g., liquid ring, screw, claw, vane, or piston pumps). For higher capacity or lower suction pressures, multi-stage configurations with multiple RBS/AV units are common.

Key Features

  • Precision Engineering: Splash-lubricated helical gears and synchronized rotors ensure optimal timing and high volumetric efficiency.
  • Durable Construction: Cast iron body and nodular cast iron rotors; optional stainless nickel alloy coating for corrosive media.
  • Advanced Sealing: Double sealing system with oil and water cooling; labyrinth seals prevent oil aerosol contamination.
  • Inspection & Maintenance: Pirex mirrors for oil level checks; long-life steel cage bearings; replaceable shaft sleeves.

 

Industry Applications

Robuschi’s high vacuum blowers are deployed across sectors where reliability and deep vacuum performance are non-negotiable:

  • Food Processing: Packaging, filtration, drying, distillation
  • Electronics & Optics: Polymerisation, ionisation, metallization
  • Pharmaceutical & Chemical: Filtration, evaporation, drying
  • Metallurgy: Degassing
  • Energy & Aerospace: Condenser degassing in thermoelectric and nuclear plants

Technical Specifications

Blower SizeSuction Capacity (m³/h)Max Pressure (mbar(a))Motor Power (kW)
35360–4301301.5
45500–6001402.2
65970–1165904.0
852125–2550805.5
1053815–4575557.5
1257380–88554511
1457833–94004518.5
Full dimensional drawings and flange specifications are available in the brochure.

FAQs

Its tight rotor clearances, synchronized operation, and robust sealing systems allow it to operate reliably at pressures down to 0.001 mbar(a).