DIN 15402‑1 ramshorn hook unmachined parts are heat‑treated forged blanks for ramshorn (double) crane hooks, manufactured according to German DIN standard. Available either with or without nose, these forgings have completed forging and heat‑treatment procedures, while thread cutting and final precision machining are not performed yet.
Key Features of DIN 15402‑1 Ramshorn Hook Unmachined Parts
- High‑quality alloy‑steel forgings with optimized metal flow lines obtained by close‑die forging, delivering good internal mechanical properties for heavy‑load hoisting.
- Full heat‑treatment has been finished, achieving qualified hardness and toughness before machining, eliminating the risk of improper heat‑treatment after component finishing.
- Supplied as semi‑finished blanks without shank threads, bearing‑surface finishing and final dimensional trimming, reserving machining allowance for custom processing.
- Two optional structures: with nose or without nose, to satisfy different hook‑suspension assembly requirements of crane manufacturers.
- Standard‑compliant raw forgings, compatible with subsequent machining to produce DIN 15402‑2 finished ramshorn hooks with threaded shank.
Main Applications
- Serve as original semi‑finished forgings for crane factories to machine DIN 15402‑2 finished ramshorn crane hooks.
- Support custom shank length and special‑dimension modification according to customers’ crane assembly drawings.
- For heavy‑duty overhead cranes, gantry cranes and port hoisting equipment that adopt ramshorn hook assemblies.
- Available for stock‑sale of hook blanks for machinery manufacturers who possess in‑house CNC machining capacity.
Note
DIN 15402‑1 unmachined blanks cannot be used directly for lifting service. They must go through thread cutting, fine machining, proof‑load test and marking to become qualified DIN 15402‑2 finished ramshorn hooks before putting into practical hoisting work.
