Yale AYS lifting claws are accessories for the YS cylinder range, providing a low-clearance lifting point that screws onto the collar thread of the cylinder. Three sizes cover the smaller YS cylinders: AYS-10 (5 t permissible capacity, fits YS-10), AYS-15 (8 t, fits YS-15), and AYS-23 (12 t, fits YS-23).
For low-clearance lifting with Yale YS cylinders
Yale describes the lifting claw as forming a compact, lightweight and versatile lifting unit when used with the corresponding hydraulic cylinder. The claws screw onto the collar thread of the YS cylinder and can be placed under loads with minimum clearance. Yale notes an important operational consideration: the hydraulic cylinder must be able to support itself against the load, and the maximum force of the cylinder is reduced by 50 percent when using a lifting claw.
Suitable Applications
Per Yale: lifting loads where overhead access is limited. The Yale catalogue example shows lifting of a container using a YS-23/160 cylinder with AYS-23 lifting claw and AYS-232 piston plate, powered by an HPS-2/2 hand pump with HPB-2 base frame.
Cylinders need a matched pump and hose and coupler set — pressure rating and coupler type must agree across the whole circuit before anything is ordered.
Key Features
- Screws Onto YS Cylinder Collar Thread: secure mechanical connection.
- Low-Clearance Lifting Point: loads can be lifted with minimum overhead access.
- Forged Steel Construction: drop-forged for repeated heavy use.
- Three Capacities: AYS-10 (5 t), AYS-15 (8 t), AYS-23 (12 t).
- Matches YS Cylinder Sizes: AYS-10 for YS-10, AYS-15 for YS-15, AYS-23 for YS-23.
Technical Specifications
| Material |
Forged steel |
| Cylinder Force Reduction |
50% reduction in max force when using claw |
| AYS-10 |
5 t permissible capacity, M57 x 1.5 thread, 0.9 kg |
| AYS-15 |
8 t permissible capacity, M67 x 1.5 thread, 1.3 kg |
| AYS-23 |
12 t permissible capacity, M85 x 2 thread, 3.8 kg |
Frequently Asked Questions
Q: Does the claw match the full cylinder capacity?
No. Yale specifies the lifting claw permissible working capacities as 5 t (AYS-10), 8 t (AYS-15) and 12 t (AYS-23) - reduced from the parent cylinder capacities of 10 t, 15 t and 23 t. The maximum force of the cylinder is reduced by 50% when using a lifting claw.
Q: Does the cylinder need to be supported?
Yes. Yale specifies that the hydraulic cylinder needs to be able to support itself against the load when using a lifting claw.
Q: Can a claw be used with a piston plate?
Yes. Yale shows the AYS-23 claw used with the AYS-232 piston plate in the catalogue. The cylinder must still be supported against the load.
