If you need to reduce many different sizes tubular heaters, here is tips for order the shrinking machine and accessories:
A.*** order 1 machine with different sizes rollers, one diameter need one set rollers. For example, Φ10-Φ8.5mm need one set roller.
B.*** order different roll assembles with a main part of the cast iron. One roll assemble install one diameter rollers. -- change roll assemble to reduce different diameters. Suitable for several diameters need to reduce, and heaters not make in bulk in one time.
C.*** order 1 shrinking machine for 1 diameter. Suitable for heaters make in bulk quantity.