The world´s largest particle physics laboratory, CERN in Geneva, Switzerland has ordered nearly 800 pcs of heating tapes in different lengths from 0,5 to 9 m. The tapes shall be used to bake out the particle acceleration equipment.

“It´s always a pleasure to get a confirmation of good quality, says Henry Kvael, Managing Director at Hemi Heating. CERN has been a loyal customer in more than 20 years and we have delivered many heating jackets for their UHV-equipment”.

“Such a large tape order we have never had before but then of course, CERN is no small facility either”, concludes Henry.

Read more about CERN >>

Read about our heating tapes >>

The requests for operating temperature of our tents often differ quite a lot and at higher temperatures it means more layers of insulation to prevent heat loss.

Our new closure design “Airlock”, provides a lower energy consumption while it protects the Velcro closure from any heat loss. The result is an even closer tent that can be heated to higher temperatures with fewer layers of insulation which is simpler to handle and at significantly lower cost.

Hemi Heating’s flexible heating kit is used for relaxation and straightening in the jointing process of high voltage cables, now supplemented with a set for cables with the diameters between 40-69 mm.

Our cable straightening system (CSR) guarantees a safe and controlled heating with no risk of damages on the cable. Quick heating process, sustainability and easy to use are the most appreciated benefits that the system offer. After further inquiries about smaller dimensions, we decided to broaden the system with additional sets.

The set comes complete in a practical bag together with temperature regulation and is also available as a double set, as the earlier kit (CSR 70-115).

The single set (CSR 40-69/1) covers one cable end while the double set (CSR 0-90/2) heats both ends at the same time.

Operating voltage: 220-240VAC or 110-120VAC
Operating temperature: 95°C

Read more about the cable straightening kit:

Cable straightening

For more information, please contact:
Tel. +46 8 554 23 250
Fax. +46 8 554 23 255
E-post: info@hemiheating.se

Hemi Heating has been selected as main supplier of bakeout equipment to MAX IV, counted as one of the main synchrotron light source facility in the world, at Lund University, Sweden. Since the storage rings must be baked out before use it´s very important to make sure the heating system works in a proper way.

Recently the final test were carried out for the first delivery of heating system that will ensure a reliable and steady heating in the UHV bakeout process at MAX IV. Two heating tents of 23 meter consisting of 8 zones each has been delivered to bake and activate two 23 meter sectors of vacuum chambers in the large storage ring with a circumference of 528 m. 30 pcs of heater fans are installed to heat the tents. The 8.5 m tent including 10 heater fans is for bakeout of the small ring in the facility with a circumference of 96 m. The whole heating system is regulated with PC-monitored temperature control which also is included in the delivery.

The vacuum chambers at MAX IV are characterized by the NEG coating technology which must be activated by heat. Therefore reliability of the oven is crucial for the desired final pressure achievement.

”In a large project like this it´s a lot of things to check. It´s very important to make sure that the tents have the right fit and tightness to avoid heat losses. Therefore we have been on place during test runs to document with heating camera and measure the temperature to ensure everything is working satisfactory. The responsible people who shall be working with the system must also be informed about how it should be controlled and monitored in the most effective way. Now it looks like everything is working perfectly and the plan is that the system shall be up running in the end of November”, says Bengt Ericsson, Technical Engineer and Account Manager for the project at Hemi Heating.

Pictures from the installation:
Bakeout tent at MAX IV_picture 2
Bakeout tent at MAX IV_picture 3
Bakeout tent at MAX IV_picture 4
Temperature control_picture 1

Information about MAX IV
The MAX IV Laboratory, located at the northern campus of Lund University, Lund, Sweden, is counted as one of the main synchrotron light source facility in the world with a broad spectra of research possibilities from archeology to nanotechnology. The entire facility will cover an area of ca 50 000 m².

Safety- and holistic thinking was the focus in the development of Hemi Heating’s self-produced heater fan. The main advantage is that users now can be offered turnkey solutions for UHV bakeout from a single supplier.

“We produce Heating tents for UHV bakeout and therefore, it also became a natural step to develop its associated heat source. The Heater fans on the market are quite few and has been the same since the beginning of the 90’s so it was time for further development. Among other things we have added a built in resettable over temperature switch and designed the fan cover so you can´t get burned on any hot surfaces while the fan is running. Altogether we offer our users a more flexible product with increased security”, says Peter Söderling, Technical Manager at Hemi Heating.

Furthermore the HF-230 VAC is equipped with adjustable built in thermostat which enables external rampable by time temperature control. It is easy to mount, as the heating tents are redesigned after the new model for absolute fit and close sealing. HF-230 VAC fits in the older tent design as well.

“Now we can offer a complete product concept that is very advantageous for our customers.

It feels good to be able to present even better solutions and that we can now call ourselves a total UHV bakeout supplier”, ends Peter Söderling.

The HF-230 VAC meets all applicable safety standards and comes with a one year warranty. In addition to the standard height a 10 cm elevation stand is available.

For more information, please contact:
Peter Söderling, Technical Manager
Direct:    +46 8 554 232 61
Mobile:  +46 760 503 245

Product sheet with technical information
HF-230 VAC