Maerial of hot roller/thermo-calender roller

Best quality alloy steel (38GrMOai,42GrMo,60GrMo,9Gr2Mo) as material,molding after mechanical machining and heat treatment.

Surface hardness HRC58~62.

Way of heating:

Central hollow inner pipe screw heating:

Roller center will install hollow screw inner pipe or sprayer inner pipe to make the conducting oil move directinally(or sprayer),which will realized heating and the temperature difference is less or equal to 1.5 ℃. To the user's requirements,we can make many patterns,such as square dot,circle dot,diamond,cross,striation,and any regular&irregular patterns.

Our non woven fabric hot roller has been ever for west germany and taiwan hot rolling machine and we have ever made the largest asian hot roller (Φ720x5400mm).
Laser cutting machine for thermo-calender roller promotes the roller's quality.

The depth reaching more than 5mm of hard layer processed after quenching is much better than the  nitried layer 0.4~0.5mm from old techniques.

Embossing dot won't grow big,and depth won't be changed by long use.

more advantages:

1) accurate pattern

2) choosing patterns,depth,and angle according to your requirements

3) synchronized quality to the European thermo-calender rollers

Our professional calendering roller for hot roller,chemical fiber,paper like  products, can hold a candle with Euro-America products!