small screw

Three main parts: Main screw, small screw and gear barrel

 

1）Adopt imported heat – resistant alloy forged steel.

2）Scientifically designed tooth figure and precise machining. 

3）Special heat treatment and azotizing process.

4）Good properties of abrasion-proof and corrosion-resistant.

 

Above features result in smooth rolling friction during the movement of the three main parts, thus leading to slight rod abrasion. Consequently EFFORT planetary extruder has longer life span than average ones on the market.