EuroWire September 2024

Technology News

Greener welding options for cable manufacturing

power (a single-phase supply of between 100 and 240V) is only needed for the operating system used to set the weld parameters. No set-up is required and the EP500 is quiet, clean and straightforward to operate, enabling even inexperienced operators to produce reliable, high-quality welds. For cable manufacturers that require a smaller powered machine, PWM produces two compact air/hydraulic cold welders. The HP100 and HP200 are mounted on trolleys, so they can be moved easily to the work area, saving effort and reducing downtime. Both machines require only a supply of compressed air, provided from either a central air supply or a dedicated compressor. The HP100 welds wire from 1 to 5mm, and the HP200’s range is 2 to 6.5mm.

Cold pressure welding provides cable manufacturers with an environmentally friendly method of permanently bonding non-ferrous wire and rod. The process is quicker and easier than electrical butt-welding and offers manufacturers savings in energy costs. PWM Ltd, which celebrates 40 years of service to the wire and cable industry this year, offers cable manufacturers a wide choice of British-made manual and powered cold welding machines. Precision engineered to produce strong, reliable welds, PWM’s machines are claimed to help improve manufacturing efficiency, reduce material waste and improve end product quality. The EP500 rod welder is a durable, low-maintenance pneumatic machine with a wide capacity of 5 to 15mm. It is powered by compressed air; electrical

PWM’s EP500 rod welder

The heavy-duty manual M101 is one of PWM’s best-selling machines. Designed for copper wire (1 to 3.6mm) and aluminium wire (1 to 5mm), the M101 requires no external power source. It can be used on a workbench or supplied with a trolley. As a specialist designer, manufacturer and supplier of cold welding equipment, PWM designs and makes its machines and dies in-house and tests them throughout manufacture to ensure accuracy. PWM Ltd https://coldpressurewelding.com

Marking reliability at high ambient humidity The advanced air dryer feature from Leibinger, a developer of coding and marking technology, counteracts high humidity and temperatures to enable quality printing in challenging production environments.

Examples of this include food that is pre-cooked and filled during production, or printing cables in areas with high humidity and temperatures. Together with its customers, Leibinger has studied these challenges and developed a solution to ensure maximum coding and marking efficiency and reliability. Continuous inkjet printers (CIJ) use a continuous ink jet to print best-before dates, texts, codes or other markings. Conventional printers can cause condensation on the print head if the humidity is very high. Humidity can also affect both ink viscosity and drying time. A Leibinger-developed solution with an integrated air dryer prevents this from happening and ensures ink adhesion and rapid drying. The Leibinger air dryer draws in the humid ambient air, removes the moisture from it and directs the resulting dry air into the print head. This ensures a dry environment in the print head, in contrast to the surrounding production environment. “As a leading international coding and marking specialist, we listen closely to our customers and develop solutions to support them in their day-to-day operations,” said Alexander Deuchert, head of product management at Leibinger. “This is exactly how the air dryer feature originated. Under extreme ambient conditions, it ensures that CIJ printers can reliably deliver the best possible print results at all times, including high print adhesion.” Paul Leibinger GmbH & Co KG www.leibinger-group.com

High humidity and high temperatures are not only found in tropical and subtropical climate zones, such as Southeast Asia. These conditions are also often encountered in production environments such as those in the beverage, food and packaging sectors. Leibinger has developed an ink portfolio that can cope with these challenging environments. However, there are applications and production processes where the ambient conditions impact on the inks’ processing and adhesion properties.

In warm, humid production environments, the air dryer ensures optimum printing and adhesion Source: Paul Leibinger GmbH & Co KG

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September 2024