* Suitable to Clam Shell Grab Bucket sand,coal,grain, slag,scrap.
* through beam is shortened,high strength,light self weight.
* main shaft sleeve is of bearing steel, Pin shaft material is 40Cr.
* High temperature resistant bearing for pulley.
* Knife edge plate adopts wear-resisting steel plate,adopts multilayer sealing craft.
* Dirt proof and water proof and it could be underwater operation.
* Clearance of two knife dege plate is very small,0.3mm,good sealing, keep working site clean.
* Whole structure is strong and not distortion,good sealing.