Leybold TW250S Turbomolecular Drag Pump with TD400 Converter

Leybold TW250S Turbomolecular Drag Pump with TD400 Converter

Available quantity: 1

orCall 1-514-464-6144


This Leybold TW250S pump is not functioning properly so we are selling AS-IS, but it includes a brand-new TD 400 frequency converter. The TURBO.DRIVE S converter with RS 232 interface supplies power to the TW series turbomolecular pumps and is used to control their operation.

** The pump and frequency converter could be sold separately. There is also option to have the pump refurbished at extra cost - please inquire directly for more information.

The TW250S turbomolecular drag pump has a pumping velocity of 230 liters per second and a final pressure of 1 x 10-8. A turbopump is a gas turbine that is made up of two independent components; a rotodynamic pump and a driving turbine. They can be mounted on the same shaft or customarily geared together. The design of a turbopump is to produce a high pressure fluid for feeding a combustion chamber or other use. Applications include:

Freeze drying - packaging industry

Degassing, casting, dry vacuum smelting (super-pure metals)

Incandescent lamp manufacturing

Electronic tubes

Thin film deposition

Space simulation

Cryogenic research

Electron microscopy

Nuclear physics, Plasma physics, High energy physics

Particle accelerators - Storage rings



ManufacturerLeybold Vakuum GmbH and Oerlikon
ModelTW250 S and TD400
Serial Number20900451483 and 31001470295
MPN11352 and 800073V0002
Condition DescriptionSOLD AS-IS - FOR PARTS
Electrical Requirements19VAC, 5A, 860hZ and 24VDC, 190W
Electrical Certification / ApprovalTUV / CE
DimensionsPump: 7"diam x 17"H; Converter: 4"W x 4"D x 2"H
Weight (lbs)14
Country/region of manufactureGermany
Custom LabelWHS