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The large round tube mill series of Zhongtai Company are mainly designed and developed to meet the demand of customers for producing architectural structure tubes (Q235 material) less than 20mm, oil delivery tubes and other products.
Features of the series equipment: high precision, high roll-exchange speed, die saving. According to the strip steel material and the mechanical properties, the tube is designed to proper hole-pattern type, to minimize the scratches by the roll on the strip steel surface and reasonably allocate the drive speed ratio, reduce the wear of the drive inside the unit, and save electricity.
Process of the series equipment: second generation, third generation and fourth generation of ZTF forming process
The main models include:
ERW273 Unit Series
ERW325 Unit Series
ERW406 Unit Series
ERW660 Unit Series
RW508 Unit Series
Star Products:
ZTF third-generation equipment is a type of higher cost performance at present. Compared to ZTF second-generation equipment, we creatively adopt the design without roller pad in the third-generation product, namely the opening and closing of the roll is adjusted online through the lead screw, so as to avoid various inconveniences and security risks for customers in die removal and replacement.


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