ER Hoist (Mini Grave) : When the standard type hoist is continuously used for more than 30 minutes, the motor and main body cause a breakdown due to overuse. It is a product designed and manufactured so that it does not overdo it even if there is a lot of frequency.  In particular, it can be used for heavy-duty work such as mines, concrete pile work, and dams.  It can be made to order with a capacity of 100 tons or more.