Thermit Welding Kits

What We Supply: AGICO is one of the top companies in railway thermit welding kit supply in China. We have designed and produced various types of aluminothermic welding kits and equipment for different rail models. Each year, AGICO supplies more than 120,000 thermit welding kits worldwide. Our thermit welding kits are used for maintenance of railway, subway, high-speed railway, mining rail tracks, and crane rail tracks.
 

Thermit Welding Kits and Equipment For Sale

AGICO sells thermite welding kits widely used in the welding of seamless joints of railway tracks, as well as the seamless welding of various types of lifting rails in subway, urban tram lines and various production lines. It is a common welding method in rail track maintenance which requires an experienced worker and a series of thermit welding kits and related equipment. 

Thermit Welding Kits List

The main thermit welding kits include: thermit welding portion, one-shot crucible, and luting sand, straight edge, preheat burner, mould side clamps, bent clamp, crucible lid, slag pan, et. Here are the details:

1. One-Shot Crucible: A high-temperature container used for the chemical reaction of welding flux and automatic pouring of molten steel during thermite welding of continuous welded rail (CWR) for various rail types.
2. Luting Sand: A sealing material used together with thermite welding consumables, mixed from quartz sand and bentonite. It is used to fill and seal pre‑formed grooves in the sand mold and the gaps where the mold contacts the rail.
3. Ignition Rod: A special fuse/wire used together with thermite welding materials to ignite the thermite welding flux.

1. Preheater and Shelf: Used to preheat the weld joint area during thermite welding.
2. Crucible Lid: Weight: 3.2 kg. Material: 2 mm cold-rolled steel plate. The crucible lid is placed over the crucible opening to shield against sparks and splashes generated by the flux reaction.
3. Crucible Bracket: It secures the sand mold, supports the crucible, and aligns the crucible pouring spout with the sand mold sprue.

1. Welding Sand Box Frame: Material: 2 mm cold-rolled steel plate. A special sand mold fixture/tool.
2. Bow‑type clamp (C‑clamp): A special tool for clamping the sand mold, used to secure the sand mold during operation.
3. Slag Pan: A special tool for thermite welding, cast steel, high‑temperature resistant and non‑stick to molten iron.
4. Rail lifter and aligner: Two pieces form a set. It quickly aligns, levels, and corrects the two rail ends at the weld joint.

1. Wedge Steel: It is used to adjust the height difference and alignment of rail joints before welding.
2. Oxygen flow meter: A custom special instrument used to calibrate the oxygen flow rate during welding.
3. Propane pressure regulator: Custom pressure gauge/regulator specifically for propane gas cylinders.

Related Thermite Welding Equipment

Related rail maintenance equipment for thermit welding: rail grinder, generator, electrical rail shear machine, manual rail shear machine, rail cutting machine, rail lifting machine.

Standard and Certificates of Thermit Welding Kit

The thermit welding kit products supplied by AGICO have reliable and stable performance, have successfully passed the Chinese rail welding standard TB/T1632-2005 test, and have been authorized by the Railway Ministry of China. For export, our thermit welding kit has passed the Australian standard AS1085.15-1995 test, the Indonesian welding joint inspection test, and the Taiwan SGS quality inspection test.

Thermit Welding Kit Package

Thermit Rail Welding Process

A sand mold is a die used to fix and support rails during aluminothermic welding. In aluminothermic welding, prepared aluminothermic flux is placed in a special crucible, ignited with a high-temperature match, and the resulting molten steel is then poured into a preheated sand mold. The ends of the butt-jointed rails in the sand mold melt and fuse under the action of high-temperature molten steel, forming a welded joint upon cooling.

Why Choose US

AGICO owns a qualified team of technicians and engineers for improving the thermit welding technology. Our laboratory has a series of modern equipment for detecting the welding joint hardness, deflection and microstructure, to ensure the welding joint quality can meet the requirements. Certified to the ISO9001:2000 standard, AGICO has supplied different thermit welding products over the past 10 years. The advanced technology and abundant experience have made AGICO one of the leading suppliers of railway thermit welding kits and equipment.