List price:

5'051.53 CHF

5'251.46 EUR *
5'591.23 USD *

Terms of sale and delivery:

Prices listed are EXW Zurich (Incoterms® 2020).
Prices are subject to change without notice.

Minimum order value: 600.00 CHF
(excl. taxes/packaging/shipping costs).

Pricing is in CHF.

Prices marked with an asterisk (*) in EUR & USD are for reference only.

Exchange rates:
1 EUR = 0.961929 CHF
1 CHF = 1.0396 EUR
1 USD = 0.903474 CHF
1 CHF = 1.1068 USD

Liquid nitrogen cold trap on a DN40CF flange as flow through version with heating coil and temperature sensor.

A working pressure in the 1E-8mbar range can be reached within much less than 1 hour.

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UHV Booster CF40 flow through version with heating coil and temperature sensor

Product code: CTH40(WT)

A device to reduce painstaking waiting times for sample insertion into your system resulting in faster and more efficient work.

Our cold trap CTH40(WT) can be used in loadlock or small transfer chambers in conjunction with a turbo pump. It increases significantly the pump-down times and reduces the water partial pressure in the chamber.

Liquid nitrogen (LN2) flow through the tube cools down a cooling body to < -180°C within 10 min - 15 min. With this cryo pump the pump-down times are much shorter and an additional bake-out not necessary. The flow through version can be attached to a pressurized liquid nitrogen dewar or a cooling setup with a heat exchanger and nitrogen gas. In small chambers as e.g. the VSCT40 the pressure drops to 1E-8 mbar in approx. 30 min. opposed to several hours when using only turbo pumping.

Our new version has now an additional heating coil installed to achieve the same efficiency in fast warming of the cold trap. Via a Pt100 temperature sensor the temperature can be monitored at all times. Appropriate cabling can be ordered in addition to the cold trap. (No power supply or control electronics included.)

The CTH40 is available as stand-alone version or together with a small transfer chamber as VSCT40.

Some test data is shown here:

Specifications: UHV Booster CF40 flow through version with heating coil and temperature sensor

heat exchanger: Aluminium cooling blocks with OFHC core
pumpdown time (with VSCT40): approx. 30 minutes to a pressure of around 1E-8 mbar
cooling temperature cryo trap: 80K
built-in resistive heater for quick warm up
Pt100 temperature sensor
6-pin miniature feedthrough
mounting flange: DN40CF (2.75")
feedthrough flange: DN16CF (1.33")
fully UHV compatible materials

Note: Cable with connector for cold trap heater must be ordered separately: CABCTH40HT3M

STEP-File Download

Manual (pdf)