OPENTECHNICAL PUBLICATION
OT-2026-000003093

Hydraulic jack

Published: 2026-09-15T19:27:31.054057Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003093
Categories: Lifting, Positioning & Manipulation > Lift Tables and Positioners

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ABSTRACT

A hydraulic jack includes a moveable base seat. A lift arm, a handle and a
hydraulic driver each mounted on the base seat. The hydraulic driver is driven
by the handle to push the lift arm to lift an object. The hydraulic jack has a
compound piston assembly and a hydraulic driver with fluid paths by which the
jack can adjust the lift capacity so as to lift quickly and lower slowly.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

[0006] Sheet 6.

[0007] Sheet 7.

[0008] Sheet 8.

[0009] Sheet 9.

[0010] Sheet 10.

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OpenTechnical publication OT-2026-000003093
Published 2026-09-15T19:27:31.054057Z
https://opentechnical.org/p/OT-2026-000003093