电动马达抓斗 在抓斗的上承梁上装设一套卷扬机构，通过卷扬钢丝绳作为闭合绳，从而达到长撑杆抓斗的工作效果。 Electric Motor Grab: Equipped a winding structure on the deck girder and taking the winding wire rope as the closed rope,It can work as a long stay bar grab.