Huisman scales up 3D printing

Cranes manufacturer Huisman said it has successfully tested four new 3D printed 350mt crane hooks under the supervision of the independent certification authority Lloyd’s Register.

The hooks are approx. 170 by 130cm in size, almost nine times larger than the first Huisman 3D printed crane hook, the company said. They have a weight of 1,700kg each and a loading capacity of 350mt. Each hook exists of approx. 90 kilometers of welding wire.

(Photo: Huisman)

Huisman has been employing the 3D printing technique ‘Wire & Arc Additive Manufacturing’ (WAAM) to produce mid-size to large components with high-grade tensile steel. According to the company, an important benefit of using this technique for crane hooks is the significant reduction in delivery time at a cost that competes with forgings and castings, and a more consistent quality level.

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