No. “ZL200620119792.5” patent has two functions, ‘Horizontal shift 
during cutting ‘ and ‘rotate work piece during cutting’, in order
to achieve these two functions, the machine is equipped with two 
handles, each handle control one function respectively. 

Function ‘Horizontal shift during cutting’ 

The relative cutting position between work piece and cutting wheel 
is changed all the time, then the cutting resistance is reduced and 
area temperature between work piece and wheel is not going to be too 
high to burn the wheel, then the cutting efficiency and area is much
bigger than normal, especially when the work piece is big size angle
iron, round steel, channel steel and other sheet metal. Because the 
temperature of cutting surface during cutting is not very high, the
surface will not become blue and easy for machining afterwards, then 
we really realize ‘less time, less consumption of electric power and
abrasive wheel’. 

Function ‘rotate work piece during cutting’ 

There’s a supporting roller to support and rotate the work piece
during cutting. Through cooperation between roller and work piece,
when work piece is rotating, then it can reduce friction between
base and work piece, make it easy to rotate.

Before cutting, we can adjust the height of base, then put the work 
piece to a position, where it is convenient for cutting
Because it’s very easy to rotate the work piece during cutting, and 
change the cutting area, then no need to stop working when cut big 
size material, with high efficiency! So this patent cutting machine 
also has a cradle with rollers. The workpiece will move forward and 
backwards by running the roller, which will be convenience for workers
and good for the machine itself because of its’ supporting function.