Global industrial engineering group Fives has been contracted by Baosteel Special Metals Shaoguan to design and supply a Bronx straightening machine to process high-yield, heat-treated premium quality steel bars.

The Bronx two-roll straightener PBRV6 is a fully automatic, motorised machine, complete with ancillary electrical and hydraulic control systems, which can process steel bars up to 80mm in diameter at operating speeds of up to 75m/min. The machine will be designed and pre-assembled at Fives’ workshop in England and supplied to China at the end of this year.

Jane Zhang, who represents Fives Bronx in China, said it was a very smart machine. “All work roll and guide bar functions are set automatically from the HMI panel, located within the operator’s control desk. Advanced heat treatment processes and profile technology enables the machine work rolls to provide greater product straightness and ‘ovality’ criteria, before re-profiling or roll change becomes necessary”, she said.

Fives has been designing Bronx straightening machines since the 1950s. Today, more than 800 Bronx straightening machines have been designed and supplied in over 50 countries.

They are custom-engineered machines suitable for cold or hot rolled bars and they provide straightening solutions for virtually any material composition and any sizes ranging from 5mm to over 200mm, according to Fives.

Bronx machines are used worldwide, provide a high level of productivity along with excellent standards of straightness, surface finish and controlled surface hardness, the company claims.