Discover GEMINISTAR-RT, the new cold rolling and straightening line by Promostar

The cold-rolled steel wire bar manufacturing industry is evolving—and so are Promostar’s solutions.

The new GEMINISTAR-RT line is a real breakthrough production in cold roll steel wire bars, ribbed or indented, combining exceptional speed and unmatched precision.

What makes it different?

- Dual process: equipped with a 5-bush standard rotor (or hyperbolic rolls) and straightening panels, it ensures superior straightness and finishing.
- Double motorized pinchroll: for maximum control and efficiency when handling wire bars.
- Double bar unloading bench: it provides simultaneous unloading on both sides, coupled with endless screws for a continuous alignment, speeding up operations like never before.
- High-speed production: with a production speed of 6 m/s, it maintains tight cutting tolerances of ±0.1% on the total length of the bar even when producing short bars (2500 mm length), ideal for processes that require precision.
- Flexible output: able to handle wire diameters from Ø 5 mm to 13 mm, making it versatile for a variety of applications, especially for feeding wire mesh machines.


The new GEMINISTAR-RT developed by Promostar offers performance, precision, and flexibility, all in one. It is the future of steel bar processing.

Contact the Promostar team and unlock the boundless potential of the steel wire industry.
More information on the website: www.promostar.it