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More Information on Two-Hand Anti-Tie Down Controls
Two-hand anti-tie down controls are used in applications that for safety reasons require both of the operators hands to be kept clear of the machine. Two normally-closed spring-return push button valves are connected to the two inputs of the anti-tie down valve. The output of the anti-tie down is used to actuate a control valve. The two-hand anti-tie down protects the operator by requiring that the two push buttons be actuated within a small period of time. This prevents an operator from 'tying down' one of the push button valves and using the other to initiate the process. Presses, stamping machines, and machines with automatic clamping fixtures are typical applications that use two-hand anti-tie down valves.
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