OPENTECHNICAL PUBLICATION
OT-2026-000003214

Vacuum lifting device

Published: 2026-09-15T19:50:51.063161Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003214
Categories: Lifting, Positioning & Manipulation > Hoists and Cranes

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ABSTRACT

A vacuum lifting device that is particularly suitable for lifting refractory
slabs used to line aluminum smelting cells incudes suction cups which engage
the object to be lifted. A plurality of mechanical supports can be moved so
that they extend at least partly underneath the object being lifted when the
object is raised from the ground. The mechanical supports can hold the object
in case of vacuum failure and improve the safety of the device. An optional
automatic override can ensure that the mechanical supports are in the down
position in the case of vacuum failure.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

[0006] Sheet 6.

[0007] Sheet 7.

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OpenTechnical publication OT-2026-000003214
Published 2026-09-15T19:50:51.063161Z
https://opentechnical.org/p/OT-2026-000003214