Hook chain

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H-4 hook chain
H-4 hook chain with load

The hook chain is a particularly robust sling . It is often used in the crane sector to fasten loads. In the fire brigade you can occasionally find them as a spreader chain .

A hook chain consists of an eyelet to which one or more chains are attached with a hook at the end. Depending on the number of chains, these hook chains are called H-1, H-2 or H-4 hook chains. The technical requirements for hook chains result from DIN 5688/8. The maximum load capacity of a multi-chain hook chain decreases with the spreading of the chains. With a typical two-chain hook chain (H-2), the maximum load capacity is 1.39 times higher at a spread of 90 ° than at a spread of 120 °.

construction

  • Suspension link (eyelet)
  • Connecting links (one per chain)
  • Chains
  • Connecting links (one per chain)
  • Eye hooks / open hooks.

literature

  • Georg Garbotz (Hrsg.): Manual of the mechanical engineering at the construction company. Third volume, first part, Springer Verlag, Berlin 1931.
  • Heinrich Martin: conveyor and storage technology. 1st edition, Vieweg Verlag, Wiesbaden 1978, ISBN 978-3-528-04066-6 .

Web links