Lifting tongs are mainly composition of parts: hanging beam, connecting plate, opening and closing mechanism, synchronizer, clamp arm, support plate and clamp teeth.
Hanging beam for lifting tongs
The hanging beam is a part connect with the Crane Hook. and has three structures: ring shackle connection. sling connection and lug connection. The hanging ring and shackle-type connection of the hanging shaft improves the stress of the spreader. and at the same time avoids the decoupling phenomenon when loading and unloading steel billets. reduces the height of the fixture itself. and it is beneficial to use in low places.
Connecting rod for lifting tongs
The connecting rod is the connection between the suspension beam and the tong arm.
Opening and closing mechanism for lifting tongs
The opening and closing mechanism has manual lifting rod type, double hook type(automatic), single hook type(automatic), turn lock type(automatic) and other forms. The automatic opening and closing mechanism is a mechanism to realize the automatic opening and closing of the billet fixture. and Its action does not require any external power source. and the automatic opening and closing of the fixture is realize by the gravity of the fixture itself. Lubrication of the opening and closing mechanism: Lubricating oil (or engine oil) must be add regularly (2 to 3 days), and then moved up and down several times until the lubrication is complete. It is strictly forbidden to add excessive grease for lubrication.
Synchronizer for lifting tongs
The synchronizer is a device that ensures the synchronous action of each clamp arm of the fixture.
Arm for lifting tongs
The clamp arm is the main force-increasing part of the fixture. through which the billet is clamp.
Support plate for lifting tongs
The support plate is the support for the billet fixture. and The support plate is support on the upper surface of the billet to ensure the smooth operation of the opening and closing mechanism of the billet fixture.
Clamp teeth for lifting tongs
Clamp teeth have pin shaft connection type. dovetail connection type and groove plug-in type and other structures. The jaws are the main parts that are in direct contact with the billet. and determine the reliability of the billet clamps to hold the billet.
Flagcrane have a professional technical team, which can design and produce standard and non-standard crane hoist and spare parts. If there are other special requirements. it can be customize according to user needs and negotiate by both parties.
