WCA January 2024

Technology News

New in-line induction wire preheater range Zumbach has released all-new in-line inductive wire preheaters. The new range complements the existing solutions the company supplies to the wire and cable industry.

Sensors measure the ambient temperature to accurately calculate the power needed to heat the wire to the desired preheat temperature. Of the 20 storable recipes, three are pre-configured to meet the most typical applications, and 17 are user-configurable, enabling custom materials with specific compositions and heating requirements to be defined. An optional interface for the connection of an additional external temperature measuring system is provided. When the sensor is placed at the entrance to the extruder, accurate wire temperature measurements are obtained, offering a tight feedback loop to compensate for any heat losses. A rugged and compact Visu-Touch operator touchscreen with power over Ethernet can be positioned at the required location. The AUTAC 300 system is used for temperature measurement and control for applications with conductor preheaters or post-annealing re-heat stages. The system consists of a sensor and a processor display unit. It provides precise non-contact temperature measurement, using the convective heat flow principle, from 10 to 300°C on wires and cables in a diameter range from 0.2 to 7mm. The measurement is independent of influencing factors such as colour, emission, speed, material or surface. The measuring head is slotted, allowing the wire to be changed without interruption. Zumbach Electronic AG www.zumbach.com

An essential stage in many extrusion lines, the Preheater WST family ensures preheating of the conductor, optimising the subsequent extrusion process and improving the adhesion of the cable insulation to the conductor. Repeatable and uniform conductor temperatures help shorten start-up times and reduce scrap. Based on new intelligent induction control hardware, the Preheater WST’s heating power

ensures consistent and linear heating of the conductor temperatures, enhancing productivity and product quality. With up to 20 configurable material types stored in the device’s memory, set-up and changeover times are minimised, increasing machine uptime. Available in three different power levels, the Preheater WST is suitable for conductor diameters ranging from 0.32 to 3.8mm, for compatibility with a wide range of cable types and future production needs. When combined with a USYS processor, full line control can be achieved for lights-out production.

Preheater WST

Controlling the centreline with full line of wire straighteners

Precision with Economy A reliable partner for the wire and cable industry

Its design offers the ability to change orientations easily from vertical to horizontal. Sjogren’s straighteners are available in a variety of styles, including tilt rail straighteners suitable for short length wire products such as nails or other fasteners; narrow line for strand galvanising or annealing, weaving, or mesh applications; customisable light duty and heavy-duty straighteners; and three-roll straighteners for applications that require only simple straightening or back tensioning. The company’s EC is a standardised straightener unit for vertical or horizontal wire straightening. The unit is best suited to being mounted to a machine, and no base plate is required. All Sjogren straighteners use the company’s unique grooved rolls, machined to exact specifications and featuring an alignment marker that ensures the assembly maintains a precise wire centreline.

Wire straightening, as part of the manufacturing process, is a relatively simple procedure that involves bending the wire along grooved rolls. Sjogren Industries claims to have advanced the process through innovation and attention to detail. Some of these innovations include a dovetail design that creates less movement between parts, which ensures tighter tolerances (the typical rectangular plate design moves more and creates opportunity for misalignment); and a slide plate design that controls where the grooved rolls sit on the wire straightener. Sjogren’s range of straighteners offer either a quick-release lever with locking handle or a non-quick-release feature, depending upon the application. The quick-release mechanism is suitable for easy opening without affecting roll adjustments. The PB Series increases efficiency with a design that minimises space and set-up time while using a common base plate for mounting.

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Bangalore - 560092, INDIA Tel: +91 99002 49782 | Email : subbaiah@mikrotek.org

www.mikrotek.in

Sjogren Industries https://sjogren.com

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January 2024