• The hook is manly composed of elevator bail, elevator bail seat,
barrel, hook body, hook rod and spring etc. In the barrel there are
inner and outer springs which can make the pin of standpipe spring
up backwards.
• On the top of the barrel there is a safety positioning device. When
lifting an empty elevator, the positioning device can stop the
rotation of the hook body; when lifting a elevator with drill string,
the positioning device no longer can stop the rotation of the hook
body; the hook body can rotate freely.
• The detent device can lock hook body at any one of eight even positions.
• And the safety pin body of the hook can also be locked by locking deice.
• For protecting DP connector while breaking out, there is a hydraulic buffer device installed in the
hook.
• A reliable safety device is installed at hook opening.
• The main load‐bearing parts have been inspected by NDT completel
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
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