For large-diameter (M24 and above) and high-tensile grade nuts that cannot be produced by cold forming. Superior grain structure and mechanical properties through hot forging.
Standard hex nuts in M6 to M20 sizes are efficiently produced by cold forming. But for larger nuts — M24, M30, M36 and above — or for high-tensile Grade 8, Grade 10 and Grade 12 nuts, cold forming reaches its limits. The material work-hardens and cold forming tools wear out rapidly.
The hot nut header machine solves this by heating the raw material (MS rod or alloy steel) to the correct forging temperature before forming. At this temperature the material flows into the die with far less force, producing a finished blank with superior grain structure, better mechanical properties and longer die life.
This machine is essential for plants supplying heavy construction, railways, bridges, power generation or defence — where large, high-grade nuts are required to specification.
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