Thread Rolling, Reducing Mill and Bar Feeder Manufacturer

Xingtai Dongze Machinery manufactures thread rolling machines, reducing mills, bar feeders, straightening and cutting machines and water-stop rod welders. Z28 models cover M6–M52. Complete line solutions. Tel 13473197321.

Main Products: Thread Rolling Machine ｜ Reducing Mill ｜ Automatic Bar Feeder ｜ Straightening & Cutting Machine ｜ Water-Stop Rod Welding Machine ｜ Customer Cases

FAQ

What is the difference between rolling and thread cutting?

Rolling is a chipless cold-forming process: the metal grain flow stays continuous, thread strength is 20–30% higher than turning, output is over five times faster and material use approaches 100%.

Z28-40 or Z28-150 — which one do I need?

It depends on workpiece diameter: Z28-40 for M6–M20 bolts and rods; Z28-150 for M20–M52 or higher rolling force. Both accept automatic feeding and loading.

Can a reducing mill and a rolling machine run as one line?

Yes. A typical layout is straightening and cutting → reducing → thread rolling → automatic feeding, linked by conveyors or robots. We design complete lines from your part drawings.

What about lead time and after-sales service?

Standard models ship from stock or within 15 days; custom tooling takes about 25 days. Two-year warranty, 48-hour on-site response in Hebei and 72 hours elsewhere, with long-term spare parts supply.

Xingtai Dongze Machinery Manufacturing Co., Ltd. Address: 500 m north of Tianshuai Crossing, Xingjiawan Town, Renze District, Xingtai, Hebei, China Tel: 13473197321