EuroWire September 2024

Technology News

Straightening and cutting machine for reinforcement steel wire production

Eddy current technology for higher sampling rates Conventional optical and laser methods for the measurement of cross-section area and mass flow in hot-rolled products do not usually have the highest reliability because of the limited sampling rate and deviation of 3-4 per cent, despite their elevated cost. The robust MASSdiscover system from ISEND is based on eddy current technology, which provides higher sampling rates. The system is capable of providing real-time information on a product’s mass and cross-section area with a deviation of only 0.5 per cent in hot-rolled products, allowing rolling mills to operate closer to the tolerance provided by the standards. The real-time information offered by the system can also be used to automatically adjust the rolling mill rolls, providing smoother control of the electrical motors. A study carried out in Peru showed the benefits of using a MASSdiscover system in a rolling mill producing steel reinforcing bars with an annual production of 205,201 tonnes. The study demonstrated that in the production of bars of 3 / 8 " diameter and 9m in length, the application of a MASSdiscover system allowed for a reduction of 5.5 per cent in the linear weight, which translated into an increased production of ten bars per billet. This amounted to an increase in production of 7,680 bars per day. ISEND SA www.isend.es The new straightening and cutting machine designed by Koch, suitable for reinforcement steel bar manufacturers, handles diameters from 3 to 16mm and works with both cold rolled (KR) and hot-rolled materials (WR, stretched qualities). The wire coming from the coil or upstream cold rolling line is MFL Group is a family-owned company specialising in industrial machinery for wire, cable and rope manufacturers. Established in 1897 as a small workshop, the company reached a significant milestone in the wire and rope division in 2020 with the acquisition of the renowned brand Koch. This move allowed MFL to further diversify its portfolio and enhance its offerings in the wire and rope sector. The acquisition of Koch was a strategic decision that enabled MFL to incorporate reinforcement steel wire lines into its range of products. With the addition of Koch Machinery & Technology GmbH, MFL offers cold rolling and stretching lines for the production of reinforcement steel wire to customers around the world. Covering the entire production process from raw material to the finished product, the machinery is designed with practical features such as optical systems for the detection of loops during payoff operation; fully automatic coil labelling and discharging system; single-operator functionality; and the ability to store recipes in the PLC, for example, in combination with motorised adjustment of stretching rolls.

KSC series reinforcement steel straightening and cutting machine

drawn in with two pairs of feeding rollers and straightened in the rotating straightening unit. Another pair of feeding rollers guides the wire to the cutting system. Once the desired wire length is achieved, the rotating shear cuts the wire, and the bar is ejected into the collector tray. Adjustable cutting length ranging from 1.5 to 12m provides flexibility to meet production requirements. The bars produced on the Koch straightening and cutting machine can be further processed for various applications in the construction industry, including the production of welded parts like structural steel mesh or cages, as well as bent reinforcement parts such as bars and various types of stirrups. The portfolio of reinforcement steel wire lines also includes stretching lines for steel wire production and drawing lines designed for cold rolling. MFL Group www.mflgroup.com

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September 2024