Hardware tool accessories Heavy-Duty U-Bolt Hot Bending - Video

In the production of heavy-duty hot-bent U-bolts, hot bending serves as the critical forming process; it involves heating the metal to soften it, followed by precise shaping using a mold. This technique is primarily applied to alloy steel bolts characterized by large diameters and high strength requirements, as it effectively prevents the cracking issues that high-strength materials may encounter during cold bending. Applicable Scenarios: Alloy steel bolts with a diameter greater than M30, or applications with stringent strength requirements.
Heating Temperature: Carbon Steel: 850–950°C;
Alloy Steel: 1050–1150°C.
The temperature must be strictly controlled within the specified target range.
Bending Radius: Typically set at 2 to 3 times the bolt diameter (D).
Core Equipment: Intermediate-frequency (IF) or high-frequency (HF) induction heating equipment; a hydraulic press with a tonnage of 100 tons or greater is recommended to provide the necessary pressure for bending.