Home > Products > Ring die > Zhengchang ring die
1. Description
Smooth die hole, nice appearance, large capacity, high quality, long life
1.1 Full automatic CNC ring die drilling machine ensure once-shaped die hole with smooth finish, nice feed outlook, high capacity.
1.2 Vacuum heat treatment technology for a better working life of pellet mill ring dies.
1.3 Compression ratio and strength can be designed per customers' need
2. Dies steel materials
Our dies are manufactured in the following steels:
· X46Cr13 (i.e."stainless" steel or "chrome-steel")
· 20MnCr5 (i.e."alloy" steel)
· 18NiCrMo5 (i.e. similar to 20MnCr5 but with a higher alloy content).
X46Cr13 dies are vacuum / through hardened. The heat treatment achieves 53-55HRc hardness on the surface and in the core. High chrome content makes it corrosion resistant. Although the cost is more than normal alloy, X46Cr13 is the most common material used throughout the feed mill industry.
20MnCr5 and 18NiCrMo5 steel dies are hardened to obtain 60-62HRc hardness for approximately 0.8-1.2mm.
3. Normal model of Zhengchang ring die
Zhengchang 32,Zhengchang 35,Zhengchang 40,Zhengchang 40D,Zhengchang 42,Zhengchang 508,Zhengchang 508E,etc.
