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Home > Dry Screw And Piston Pumps > New Dry Screw Vacuum Pumps > Oerlikon Leybold > Screwline Vacuum Pumps > Oerlikon Leybold Screwline SP 250 Dry Compressing Screw Vacuum Pump, PN 115-001
Oerlikon Leybold Screwline SP 250 Dry Compressing Screw Vacuum Pump, PN 115-001
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Oerlikon Leybold SCREWLINE SP 250 Dry Compressing Screw Vacuum Pump, PN 115-001


These Oerlikon Leybold SP 250 Dry Compressing Screw Vacuum Pump SCREWLINE are from the SCREWLINE SP family were developed in view of the special requirements of industrial applications. The innovative, modular design of the SCREWLINE allows these pumps to be used in all cases where reliable, compact and low maintenance vacuum technology is demanded. SCREWLINE pumps are suited for all applications with higher requirements regarding the backing pump, like for example in processes involving high particle counts or in the hard production area. The dry compressing SCREWLINE pumps are an ideal alternative to conventional oil-sealed vacuum systems..


Standard Equipment on the SP 250 Optional Accessories for SP 250
  • Manual Gas ballast valve
  • Dust filter
  • Purge kit for simple pump chamber cleaning
  • Seal gas retrofit kit
  • Non-return valve
  • Exhaust silencer. PN 119 002
  • Roots pump adapter. PN 119 022
  • Gas ballast valve - Manual. PN 119 001
  • Gas ballast valve - Solenoid. PN 119 003
  • Dust filter. PN 951 68
  • Purge kit for simple pump chamber cleaning. PN 119 031
  • Seal gas retrofit kit. PN 119 031
  • Non-return valve. PN 119 011


Typical Areas of Application Engineering Features
  • Industrial furnaces / heat treatment (hardening, annealing, sintering, carburization, melting)
  • Coating technology
  • Metallurgical systems
  • Drying processes
  • Load lock chambers
  • Degassing
  • Research and development
  • Lamps and tubes manufacture
  • Automotive industry
  • Space simulation
  • Electrical engineering
  • Packaging technology
  • Leak detection
  • Two synchronized, cantilevered positive displacement rotors form the pump chamber and ensure multistage compression with very few components
  • Non-contact and practically wearfree shaft seals
  • The cantilevered rotors avoid bearings in the vacuum and ensure easy accessibility of the pump chamber for cleaning at the same time
  • Integrated rotor cooling and air cooling from the outside via thermal link
  • Water cooling device for use in airconditioned rooms is available as an option
  • SCREWLINE pumps are available as O2 models for pumping pure oxygen


  • Screw Rotors Design & Function


The ScrewLine is a dry compressing screw-type vacuum pump capable of a maximum pumping speed of 250 m3 x h-1. It has been developed specifically for the special requirements of industrial applications. For this reason the ruggedness of the pump was a main design criterion.
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  • Principle of Operation


In the ScrewLine vacuum pumps the pump chamber is formed by two synchronized displacing rotors and the housing. A pair of tightly intermeshing right-handed and left-handed threads is used to implement with only very few components a large number of stages and thus very low ultimate pressures.
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  • Slots


As in the case of other dry compressing (slot sealed) vacuum pumps, also in the case of screw pumps very tight slots need to be maintained between the components. Otherwise the leaks caused by the pressure drop would have a negative effect on both pumping speed and attainable ultimate pressure. Moreover, the pump might heat itself up too much due to unfavorable thermodynamic processes.
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Product: Oerlikon Leybold Screwline SP 250 Dry Compressing Screw Vacuum Pump, PN 115-001
Condition: New
Warranty: Full Manufacturer's Warranty
Part Number: P105935
Sale Price:$30,650.00
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