classic | mobile


SA Instrumentation & Control Buyers' Guide

Technews Industry Guide - IIoT 2018

Technews Industry Guide - Maintenance, Reliability & Asset Optimisation


Upgrade at Everaz Highveld Steel
January 2011, Motion Control & Drives

Control Techniques wins contract to upgrade four-strand billet caster.

Control Techniques has won a major contract for the electrical upgrade of M/C4, the four-strand continuous casting machine at the Evraz Highveld Steel and Vanadium in Mpumalanga, South Africa. This contract follows a long history with the steelworks where Control Techniques drives are standard for the plant. Evraz Highveld is a major iron and steel producer now owned by the global Evraz Group. Products of the steelmaking plant include billets, blooms, slabs and high grade vanadium slag.

The 40-year old billet caster has four-strand continuous casting capability and was predominantly DC controlled. All of the switchgear had become obsolete causing major maintenance problems. The decision was taken to switch to AC control to give greater accuracy with less wastage and greater overall efficiency.

Evraz Highveld approached Control Techniques for a power control solution. The Drive Centre in Johannesburg was responsible for the design, build, installation and commissioning of the 6 panel suite. The suite, complete with bus bars, 2000 A incomer and common drives panels complete with AC motors is integrated with the existing scada system via a Modicon PLC. This was done in conjunction with the steel manufacturer’s PLC engineers, who completed the software side of the project.

The suite incorporates a total of 10 Unidrive SP AC drives of 11, 15 and 45 kW capacity; a Control Techniques HMI with key pad was installed with each drive to provide full status and diagnostic information for the drive as well as for the line interlocking. At Evraz Highveld, the steel is transferred from the steelmaking process by car and crane to the continuous casting plant via the ladle refining stations where temperature adjustment, desulphurisation and final composition adjustments are carried out. The plant comprises four continuous casting machines; two large twin machines for blooms, one for slabs and one for billets. The four-strand billet machine produces billets from 120 to 140 mm. Each strand has a 15 kW, 6-pole motor fitted with force cooling for the withdrawal rolls and these control the billet length. The billets are then moved by roller tables controlled by the 15 kW drives and are loaded onto a walking beam conveyor and then onto cooling beds.

Control Techniques Southern Africa is a preferred supplier to Evraz Highveld because of its engineering and project expertise, ability to provide fast on-site assistance and the local stock-holding. The customer’s electrical staff are familiar with Control Techniques’ AC and DC drives and say they find them straightforward to use and to programme. The Unidrive SP solutions platform AC variable speed drive range spans 0,75 kW up to 1,9 MW. It is configurable into five operating modes – open and closed loop, vector, servo and regenerating modes. With a range of plug-in module options, its on-board PLC can be supplemented with programmable and specialist feedback and communication modules.

For more information contact Bill Tedd, Control Techniques, +27 (0)11 462 1740,,

Supplied By: Nidec
Tel: +27 11 462 1740
Fax: +27 11 462 1941
Share via email     Share via LinkedIn   Print this page

Further reading:

  • Case History 163: Control limitations on mineral processing plants
    November 2018, Michael Brown Control Engineering, Motion Control & Drives
    I was recently asked to conduct a control loop audit on a mineral extraction processing plant which was fairly old and had been acquired by new owners. A new and very modern control system had been installed ...
  • PC-based control ­ increases throughput in additive ­manufacturing
    November 2018, Beckhoff Automation, Motion Control & Drives
    Automated post-print processing puts the finishing touches on 3D printed parts.
  • SEW supplies industrial gear units for West African mine
    November 2018, SEW-Eurodrive , Motion Control & Drives
    Having an in-house projects department to focus on the specific requirements of project houses, OEMs and other tender-related project activity is starting to bear fruit for drive and automation specialist ...
  • Motion analyser software shortens design time
    November 2018, Rockwell Automation, Motion Control & Drives
    Rockwell Automation has released an updated version of the Allen-Bradley Motion Analyser software tool, which offers an optimised user experience with intuitive navigation and in-workflow product selection. ...
  • Edge applications for machine tools
    November 2018, Siemens Digital Factory & Process Indust. & Drives, Motion Control & Drives
    As part of Siemens Industrial Edge, the company is launching applications for Sinumerik Edge, the machine-level platform specially designed for the machine tool industry, at AMB 2018 in Stuttgart. This ...
  • Nord drives for wash-down ­applications
    November 2018, Bearing Man Group t/a BMG, Motion Control & Drives
    BMG’s range of Nord aluminium drives is available with the nsd tupH (sealed surface conversion system) anti-corrosion treatment, which has been developed for improved process reliability in extreme environmental ...
  • Eaton motor control for easy installation
    November 2018, Magnet , Motion Control & Drives
    Magnet’s portfolio of space saving Eaton motor control and protection devices offer motor starting and protection solutions in diverse industries, including mining, oil and gas, pulp and paper, the automotive ...
  • Linear modules with one-point lubrication simplify assembly
    November 2018, Tectra Automation, Motion Control & Drives
    The third generation of MKK and MKR linear modules from Tectra Automation expands the range of equipment options for the company’s linear module series. In the corrosion resistant versions, hard chrome ...
  • How drives help in papermaking
    October 2018, Nidec, Motion Control & Drives
    Papermaking machinery, from tissue winders through to suction rolls, embossers, print units and conveyors, must utilise the latest drive technologies to meet modern paper mill production schedules and ...
  • SKF offers new Lincoln lubrication pinion
    October 2018, SKF South Africa, Motion Control & Drives
    SKF has announced the introduction of its Lincoln lubrication pinion LP2 for open gear wheels and gear racks. Complementing SKF’s existing lubrication pinion line, the reliable LP2 features a modular ...
  • Drive system for light load conveyors
    October 2018, SEW-Eurodrive , Motion Control & Drives
    SEW-Eurodrive is once again expanding its range with the launch of its ECDriveS brushless DC gearmotor. This drive system is a simple, efficient and cost-effective solution for the lower power range of ...
  • Drive control for pumps and ­agitators
    September 2018, Bearing Man Group t/a BMG, Motion Control & Drives
    Nord Drivesystems, designed by German precision engineers Getriebebau Nord, and assembled locally by BMG, encompass efficient drive configurations to ensure optimum performance of mechanical speed control ...

Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Terms & conditions of use, including privacy policy
PAIA Manual


    classic | mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.