This kind of spreader is suitable to be used on ports and sites which have less containers. And it is suitable to lift 20 ft to 45 ft containers. It can be used with Portal crane and stacker crane. 

For operation with ISO standard 20' 40' 45' containers		For operation with ISO standard 20' 40' 45' containers
Rated lifting load	50T	Rated lifting load	50T
Self-weight	hook frame	Self-weight	hook frame
	2.1t		2.25t
	hook under carriage		hook under carriage
	2.9t		3.78 t
effective height	2000mm	effective height	2000mm
Application	Loading & unloading for opened top of the ISO standard overheight container.	Application	Loading & unloading for opened top of the ISO standard overheight container.
Drive	All operation control by the spreader, such as open and close twistlock , telescopic positioning	Drive	All operation control by the spreader, such as open and close twistlock , telescopic positioning