Without anti two block protection operators can pull the hook and load through the crane body damaging the crane or causing safety risks.
Anti two block limit switch.
Crane safe technologies offering anti to block limit switch dust proof limit switch end switch ल म ट स व च new items in mumbai maharashtra.
Without a proper crane a2b system a two block can cause expensive damage to the crane boom personnel and surrounding property.
In this scenario the lower load block or hook assembly comes in contact with the upper load block or boom point sheave assembly seriously interfering with safe operation.
Crane two blocking problem solved with hubbell limit switch posted on october 10 2006 january 17 2018 by eric brown use of power circuit limit switches with flux vector drives in molten metal hoist applications recently engineered lifting systems fielded a call from a customer with production that includes the hoisting of molten metal.
Anti to block limit switch.
Anti two block switches twgs offers both wired and wireless anti two block atb switches.
Anti two block atb or a2b warning systems are used to warn or prevent the crane operator from two blocking the crane.
Users receive an audible hooter and visual warning on the display when anti two block event happens electronic circuitry is potted for full humidity protection counter weight with the help of wire rope.
Pat hirschmann anti two block switch information.
The systems developed in the 30 s and 40 s include more advanced indicator switches switch control mechanisms limit switches cable safeguards means of measuring loads and other devices to prevent anti two block related crane accidents.
Features the a2b limit switch monitors the load block to its relationship with the head of boom.
Pat hirschmann anti two block warning systems are used on cranes to halt or caution the operator of unsafe upward movement of the hook.
The wired ultimate atb switch offers added protection against two blocking situations for crane operators and ground personnel such as a smaller footprint on boom heads easy cable replacement no hassle mounting flexibility and less cable wear.
Anti two block for crane cable in this application our j4 series ball switch is used to detect and prevent the dreaded two blocking scenario during crane operations.
The anti two block switch a2b isens hes consists of a switching unit and an optional divisible operating weight.
