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Wirepak® Thermic Lance

imgp0188Wirepak® thermic lance tube is a consumable steel tube available in 8; 10 and 15mm Nominal Bore (NB) packed with between 5 – 20 low carbon steel wires. Our thermic lance tube is available in 2.3, 3.0, 3.2 and 4.0mtr lengths with the most popular being the 3.0 and 3.2mtr lengths.

Thermic lances are employed where stubborn materials need to be gouged out or for cutting concrete where vibration is not permitted. In this process, the lance tube is connected to a high pressure oxygen supply using our Afrox’s range or other suitable brass couplings.

Temperatures during the cutting process reach in excess of 4 000° Celsius and this method is used to achieve a noise and vibration free cutting of steel, concrete and cast iron. The process is very efficient and cost effective compared to traditional drilling, especially where cutting of reinforced concrete is required.imgp0200

Thermic lance tube was originally developed in France to cut gun emplacements after the second world war. The process is based on the principle that red hot steel oxidises very quickly when in an atmosphere of pure oxygen.

This exothermic reaction will persist as long as oxygen is fed through the lance causing the intense heat generated at the tip of the lance to burn away the offending material quickly while simultaneously consuming the lance tube itself.

Please refer to our minimum safety considerations before tooling up for a lancing operation.

Lancing Set Up

Connect the Wirepak® therminc lance tube to the brass coupling. (We recommend Afrox’s range of lancing couplings.) imgp0185If you are using our 3.2metre lengths, be sure to insert the unpacked end into the coupling.

Set the oxygen regulator to 80-100psi depending on your conditions.

Open the oxygen flow, ignite the mixture then burn the first 25mm of the lance until the lance is red hot, causing the lance to burn aggressively. Use firm force to burn / gouge the offending material. Note that the bore holes inclined by 5-10 degrees ensure the resultant slag flows away slowly.

Disclaimer

The information contained on this website is to the best of our knowledge, accurate and reliable as of the date of publication. Neven Matthews (Pty) Ltd does do not assume any liability whatsoever for the accuracy and completeness of the above information. Neven Matthews (Pty) Ltd makes no warranties which extend beyond the limitation of liability under the contract between the customer and our company. Any information published on this site does not constitute any warranty of merchantability or fitness for a particular use. It is the customers’ responsibility to inspect and to test our products in order to satisfy themselves as to the suitability of our products to their particular purpose. It is the customer’s responsibility to check the relevant product data sheets before any execution of an order. The customer is responsible for the appropriate, safe and legal use, processing and handling of our products. The information contained herein relates to our materials when not used in conjunction with any third party materials. Neven Matthews (Pty) Ltd will not accept any liability with respect to the use of its products in conjunction with other materials.