Techne Precision Temperature fluidised sand baths For calibration & heat treatment

With more than 50 years experience in the field of temperature control, Techne has established itself as a world leader in the design & manufacture of equipment used for both laboratory & on-site temperature calibration, providing the calibration engineer with a precise dynamic stable temperature source.

Exceptional temperature stability & uniformity also make Techne fluidised baths the ideal choice for critical heat treatment procedures. An alternative to the dangers associated with high temperature oil & salt baths.

Pioneers in the development of fluidised bath technology, Techne have a wide range of products capable of covering the temperature range –100°C to 1100°C.

Please contact us by phone 01767 692692 or using the contact us link, to discuss your particular temperature calibrating requirements or request a product data sheet.

SBL & F08 Range of Precision Fluidised Sand Baths For Temperature Calibration & Heat Treatment
SBL-1 With a temperature range of up to 350°C this unit covers a wide range of applications. Simple to operate and maintenance free the SBL-1 Fluidised Bath provides a uniform & stable heat source & will control the temperature to within ±1°C. The SBL-1 has a working volume of 228mm diameter and 120mm deep. The unit is fitted as standard with an energy regulator to set and control the temperature.	more info
SBL-2 For temperatures up to 600°C the SBL-2 Fluidised Bath will maintain temperature to within ±1°C. The working volume of the unit is 228mm diameter and 140mm deep. Three 1kW heaters give a heat up time from ambient to 600°C of approximately 100 minutes. (All the SBL range of units have a pocket in the fluidised bath that will accept a 5mm diameter control thermocouple.)	more info
SBL-2D This extra depth fluidised bath is based on the SBL-2 but with an increased working depth of 350mm. Four 1kW heaters give a heat up time from ambient to 600°C of approximately 100 minutes.	more info
TC-8D & RS-232 Digital Programme Controller Designed to improve the temperature stability and temperature setting accuracies the TC-8D is compatible with all of the SBL series of fluidised baths. The TC-8D is a self contained unit and is supplied complete with a chromel/alumel Type K thermocouple which fits into the sheath supplied with the SBL baths.	more info
TechneWorks software This custom software allows programs to be easily created & sent to the FB-08C & also the TC-8D with RS-232. It has been specially written to enable easy programming of the controller.	more info
FB08 Precision Range Fluidised Bath Temperature range 50°C to 700°C Temperature stability, as good as ±0.2°C Working volume diameter x depth, 165 x 385mm   The FB-08 series are precision fluidised baths with exceptional temperature stability & uniformity making them the ideal choice for critical temperature calibration & heat treatment processes.   The unit is suitable for many other applications including thermal testing of sensitive components such as semiconductor devices, wire product testing, delicate transducers & they may also be used as a constant temperature environment for chemical reactions.	more info
FB-08LT Low Temperature Fluidised Bath   The FB-08LT Fluidised bath is a precision low temperature bath. It incorporates a cylindrical fluidised inner container, three term digital set point indicator/ controller & two flowmeters for regulating the fluidised air & liquid nitrogen (LN2) supplies. Temperature range –100°C to 200°C Control stability, as good as ±0.2°C Working volume diameter x depth 165 x 385mm	more info
BFS High Temperature Fluidised Calibration Bath   Temperature range 200°C to 1100°C Working volume diameter x depth 203 x 203mm The BFS is designed for applications requiring a constant high temperature source for calibration. The BFS has a hinged lid and a cylindrical bath 218mm in diameter & 254mm deep. Substantial fire brick insulation is incorporated within the outer container & the lid. Standard equipment includes a separate air supply control unit which incorporates two flowmeters for monitoring the air supply & charge of fluidising medium (aluminium oxide) & air diffuser (zirconium oxide).	more info

The fluidised bath is constructed from a container filled with dry inert particles of aluminium oxide. When a gas flow is passed through the particles via a porous distribution plate, the particles are separated & suspended in the gas flow & give the appearance of a boiling liquid. Apart from circulating & flowing like a liquid, fluidised particles exhibit excellent heat transfer characteristics. When fluidised particles are heated, heat is distributed quickly & evenly throughout the bath & transferred rapidly to objects submerged in the bath. The bath temperature can be adjusted easily to the point at which you wish to calibrate or carry out a heat treatment application.

Within the temperature range of the unit the aluminium oxide does not melt or reach boiling point. Therefore, solidification which takes place in salt baths & fumes from hot oil baths are eliminated.

Fluidised baths are dry & inert, making the medium a safe and clean alternative to conventional liquid systems and salt baths.

Techne fluidised baths are used in materials & component quality control, instrument calibration laboratories & thermal processing production departments. They provide rapid heat transfer & precise temperature control to calibrate & maintain temperature sensitive instruments efficiently and safely.

Applications include:

Jet engine sensors, particularly irregular shaped sensors which cannot be calibrated with Dry Block or liquid baths.

Wiring looms  from battery & engine sensors on transport aircraft.

Heat treatment of metals.

Heating of reactor vessels containing plastic samples.

Shape set nitinol stents & platinum/tungsten coils.

Cleaning of plastic extrusion dies.

Please contact us to discuss your measurement needs.