By the use of pre-set function and independent driven sub-beam, the device can lift both naked and chocked rolls independently.

The device consists of the following four components.

• Lifting tackle to be connected to crane hook
• Main beam
• Two sub-beams
• Four arms for grasping a roll

(1) By the pre-set function, the device can be set to the position of grasping a work, by a single-touch operation.
(2) Because sub-beam is driven independently and synchronized, horizontal lifting of a work is possible without individual gravity center adjusting mechanism.
(3) By the introduction of a box structure for beam and detachable oil-less plate, maintainability is improved.
(4) Because the control panel is installed on the main body, the wiring between crane and lifting device becomes simple.

Engineering machinery Division, Yoshikawa Kogyo Co. Ltd.