WCA May 2010

news

Multi-compound heavy-duty extruders

Due to a lack of suitable second-hand extruders, Gauder sa has announced the addition of Mapré heavy duty equipment to its scope of sales. Ranging from 38mm up to 150mm with L/D ratio 25, Mapré extruders will process high friction materials such as HFFR and LSF0H, as well as PVC, PE, XLPE, PA and PUR compounds. Said to be maintenance free, the extruders are described as offering “perfect melt homogenization” and high linear output. Mapré extruders are suitable for integration in existing insulation and sheathing lines or to be combined with new or second-hand machines, either from the customer’s workshop or selected from within the Gauder Group.

Gauder sa – Belgium

Fax : +32 4367 8798

Email : sales.mapre@gaudergroup.com

Website : www.gaudergroup.com

Wire break detection system

❍ Typical placement of wire break detection monitors

Yield Management Corporation has released a new product for detecting wire breaks in stranding and cabling machines. The system monitors individual spool rotation using optical sensors mounted outside the machine’s rotation, and detects a non-rotating spool in less than 1.5m of product travel, stopping the machine before the broken wire reaches the next section. The broken wire can be repaired, preserving the finished product and reducing costly scrap. This method of detection has been proven to be fail-safe in all applications and significantly improves productivity and product quality. The product can be custom configured for most planetary and rigid frame and planetary cabling machinery and utilises a Siemens hardware platform and HMI. The HMI provides the operator interface for initial set-up and continuous monitoring. The operator selects which spools are expected to run and enters the product lay for each machine section. Once configured, no other inputs are required. When the machine starts, the system continuously monitors each spool and is unaffected by machine speed. The system does not rely on slip rings or expensive radio frequency transducers and is said to be simple to maintain and operate as a result. Most existing wire break detection systems monitor the collecting die. Repairing a wire break after it has passed the forming die takes longer and is more difficult. The YMC system monitors spool rotation and detects wire breaks, often before the wire end reaches the collecting die. Stopping the machine before the collecting die makes the cable repair more efficient, improving product quality and productivity. Manufacturers of power cables or underground cables who require minimum continuous lengths report the greatest cost savings. Other users include those who strand non-conductive materials such as glass fibre where conventional wire break detections systems fail.

Yield Management Corp – USA Fax : +1 413 283 7778

Email : sales@yieldmanagementcorp.com Website : www.yieldmanagementcorp.com

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Wire & Cable ASIA – May/June 2010