Grab Maintenance: drivers should grab the use of real-time observation during operation, if found chains, quick connectors, which are abrasion Henan mine grab manufacturers, timely filling; if found other faults or a suspected fault grab should be shut down Check and timely reporting, and make a record in the run log. Grab Category: Double rope grab grab mine in Tangshan reliable, easy to operate, Liaoning grab manufacturers, production rate, widely used. Two sets of double rope after becoming four rope grab, work processes and the same double-rope grab. Grab according crawled material bulk density is divided into light (such as crawl grains), medium (such as crawling gravel) and heavy (such as crawling iron ore) in Class 3.