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There are several main objectives providing for well designed grounding system: first, Personal safety, followed by equipment protection signal reference quality, return path for faults and surges and static dissipation.

In order to meet these objectives, grounding connection must maintain a low contact resistance often under adverse conditions, for the expected lifetime of the grounding system. Connections in grounding network are subject to severe corrosion, high mechanical stress due to electromagnetic force and rapid thermal heating due to high current magnitude during fault conditions
Graphite Mould
Kumwell Graphite Mould, an exothermic welding mould is made from high quality graphite, accurate production and expert engineering
  • Earnest design : capvity, flow path.
  • High quality raw material
  • Accurate tolerance
  • Deration : at least 50 times in normal usage.
Example Connection Type
Weld Metal Powder
Kumwell Weld Metal Powder is made from high quality material, test and inspection followed international standard UL 467 and IEC
  • Non toxic and heavy metal.
  • Steady burn without pop and fire out.
  • No slag and porosity.
  • Consistency of color.
  • High conductivity with at least 93% Cu.
Electronic Ignitor
Kumwell Electronic Ignitor for starting the reaction, low smoke, warning sound and safety operation.
Handle Clamp & Support Handle
Kumwell Handle Clamp is used for handleing clamping the mould fit to the right position and tightening without leakage during the exothermic welding process.
Handle Clamp for Railway
Kumwell Handle Clamp  has 3 type different type for railway : HCM00, HCW00 and HCF00 which is adequate to assort with many different sizes and types of graphite mould.
Necessary Tools
Kumwell Standard Tools are dedicated to use with the main equipment in exothermic welding connection process.
  • Flint Ignitor : For starting the reaction.
  • Cable Clean Brush : For cleaning cables and other circular conductor.
  • Mould Brush : For Cleaning mould.
  • Busbar Brush : For cleaning metal flat surface.
  • Scraper : for removing slag from mould's crucible after finishing the connection.
Tool Box
Kumwell Tool Box is a special designed steel case suitable storing of exothermic welding equipments before and after process.
One Time
Kumwell One-Time Exothermic Welding 1 Unit Consist of
  • Ceramic Mould
  • Welding Powder
  • Steel Disk
  • Sleeve Cable
Example Connection Type