BSJ300L Aluminium Alloy Roots Booster Vacuum Pump 1000m3/h 3.7kW

1000 m³/h , 3.7kW Mechanical Booster Pump, Roots Pump BSJ300L ,white 7047 colour

Description :

Roots vacuum pumps ,which are also called Roots blowers,are rotary plunger type pumps where two symmetrically shaped impellors rotate in opposite directions inside the pump housing.

Characteristics:

• The use of oil-free intermediate seal, multiple sealed way to ensure the high clean vacuum environment in the rotor chamber.
• Advanced proceesing to ensure the good geometrical symmetry of the rotors,as well as low noise and long service life.
• Special shaft seal is used to achieve the long stable running without oil leakage.
• The BSJ-L series is made of all-aluminum alloy, heat sink, corrosion resistance, and efficient energy saving.The BSJ-LC series is made of cast iron. The unique liquid coupling method enables the pump to start directly under the atmosphere, which greatly reduces the time of pumping.
• Compact structure, light weight, and small volume.

​Technical Parameter :

Note: The value of 'Ultimate Pressure' in this sheet is measured by the Pirani gauge when Baosi special pump oil is used, and the value should be 4x10^-3 if the McLeod gauge is used.

The cooling water temperature of the inlet port must be 5~30℃. When the temperature is too low, please keep it in an environment that is not easy to condensation.

Performance Curve:

Dimensions:

Applications

• Semiconductor Fabrication
• LED & Display Manufacturing
• Vacuum Heat Treatment
• Physical Vapor Deposition (PVD)
• Vacuum Distillation & Drying
• Food Preservation & Processing
• Vacuum Packaging
• Scientific Research

Typical System Configurations

• Roots + Rotary Vane Pump
  Commonly used in general industrial applications (e.g., packaging, heat treatment) to achieve medium vacuum (10⁻¹–10³ Pa).
• Roots + Screw Pump
  Preferred for dry processes (e.g., semiconductor etching) to avoid oil contamination, with screw pumps serving as the backing stage.
• Roots + Turbomolecular Pump
  Used in UHV systems (10⁻⁶ Pa or lower) for research and aerospace, where roots pumps pre-evacuate chambers before turbopumps take over.