W12NC four rollers rolling machine
This machine is NC control four rollers rolling machine. The main parts are the reversal 
side, upper roller, lower roller, side rollers, frame structure part, driving part, basis 
part, transducer part, electric part, hydraulic part, etc

1.Upper roller is the main driving roller, lower roller and side rollers are the driven rollers

2.The two sides of the rollers are supported by the self-aligning bearing.

3.The left side of the upper roller is installed to reversal side and the right side is 
installed to the fixed side, firmly in position, only has the rotary motion no ascending or 
descending motion. The bearing box of the lower roller and side rollers are insert the guide 
channel of the right frame and left frame, the to-and-fro movement of the double-action single 
piston road oil cylinder can let the two sides of the lower roller and side rollers descend or 
ascend along the guide channel. The descending and ascending displacement is NC controlled, 
auto-levelling, the displacement is showed on the LCD, the synchronous accuracy is 0.2mm.

4.The reversal side is on the left side of the upper roller, reverse the reversal side to take 
out the finished working piece, there is balance equipment on the right side of the upper roller 
to keep the balance force when the reversal side is reversing.

5.The cylinders, which let the lower roller and side rollers descend or ascend, are insert the 
guide channel. The right frame and left frame connected by the tie-beam are equipped on the 
whole welded basis to build up a strong frame structure; it can help to improve the strength 
and rigidity. The main driving part is installed right of the right frame

6.The machine adopt the centralized control system, the synchronization of the descending/ascending 
movements are adjusted by hydraulic system and electric system to keep the synchronous accuracy. 
The real time position value of the two sides of the lower roller and side rollers will be separately 
showed on the LCD.