Spiral Wound Drum Link Chain Hoists are typically used with Tainter or Radial, Pie shaped gates.
Spiral wound drum link chain hoists can be used on spillways as control or emergency gates and are often mobile so that spiral wound drum link chain hoists can be used for servicing many gates rather than just one.
Reliable and efficient Spiral Wound Drum Link Chain Hoists
Often spiral wound drum link chain hoists, whether fixed or mobile, are controlled remotely and used to regulate the desirable pond level. The link chain allows for “dogging” of the gate to the deck at different elevations and then disengagement of the hoist so that it is available to raise and lower the remaining gates.
When two chains are required to lift the gate, two drums are required and varying load conditions on each chain can occur. Dual wound drum link chain hoists should be designed to equalize the load on the chains and to prevent jamming and twisting of the gate.
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