Some extruders manufacture dies and some extruders buy dies. There are many different schools of thought on why you do one and not the other and vice versa. At Sierra, we believe it is better to buy dies than make them.
We believe that die shops that specialize in making dies have perspectives and experiences in die making that an extruder would not have. Through monitoring and experience, we have learned who the best die makers are in North America and utilize their expertise.
Sierra has a firm belief in proper, regular maintenance of our die tooling. At the end of each run our die shop personnel clean, check, polish, and (when necessary) nitride our dies. Our uncompromising preventative die maintenance assures dimensionally correct extruded parts for our customers.