hoist & winch

Electric Chain Hoist

Electric Chain Hoist

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Chain Hoist Motor Rating
Short Time Rating
This rating indicates how long the hoist can be operated continuously at rated capacity on the cycle beside, assuming continued operation for a short time span.

Single speed : 60 min
Dual speed : 30 / 10 min
Intermittent Rating (Percent ED)
Max. Number of Starts Per Hour
This rating indicates the allowable ration of motor ON time to motor OFF time, and starts per hour for a hoist operated continuously at 63% of rated capacity on the cycle below, assuming continued operation or repeated starting over a long time span.
Example ( single speed ): %ED :

Motor ON time ( t1 + t3 ) x 100
————————————
T ( 1 cycle )
Where T = 1 cycle ( t1 + t2 + t3 + t4 )
and is more than 10 minutes.

TMP Hoist Motor Ratings :
* Single speed : 70%ED, 400 starts/hr
Dual speed : 40 / 20 %ED, 120 / 240 starts/hr