WASTE RECYCLING
Five years on: HSM baler’s automated waste disposal and production still remains ‘reliable and eff ective’
ORIGINALLY founded in 1990, The Great Western Packaging (GWP) company grew to become a key player on the British packaging market and falls under the umbrella of GWP Group Ltd. The fi ve divisions of the GWP Group are GWP Packaging, GWP Protective, GWP Correx, GWP Conductive and GWP Coatings. The Cricklade-based company provide customer-specific products designed for transport packaging made of corrugated cardboard. In order to increase productivity, in 2013, GWP Packaging invested in a HSM VK 4208 channel baling press from HSM. The new baling press allowed the company to provide full automation through baling the waste die cut pieces ready for recycling. Five years on, James Pedley, Operations Manager at GWP Packaging, described how the the fully automated HSM VK 4208 has coped with demand. He said: “The HSM Baler we installed fi ve years ago has proved incredibly reliable and eff ective.
“As a packaging company
there‘s a high level of scrutiny on how we handle our waste,
yet the equipment has helped us to recycle more effi ciently.
“It has been an important part of an environmental strategy that has seen us switch to LED lighting, and win awards for our eco-friendly packaging design.” “We‘ve also increased our manufacturing capacity considerably over the fi ve years we have been operating the HSM press, while installing two new die cutters and various other equipment. “The HSM Baler has been able to keep up with this level of growth and is a testament to the quality and eff ectiveness of HSM’s kit.” James continued about how the baler is especially useful to increase production. He said: “Take production as an example, die cutting machines play a central role in the automated production process. They die cut cardboard sheets by means of cutting, punching and grooving into fi nished die cut cartons and fi tments. “We design the punching dies so as to save as much material as possible and so that only small amounts of punchings, edge cuts for example, accumulate. We then return these to the recycling loop.” Since the introduction of the HSM VK 4208 channel baling press, GWP Packaging has achieved full automation regarding its waste disposal, while
34 SHWM December, 2018
JAMES Pedley, Operations Manager at GWP Packaging
replacing a long-serving baling press which could no longer live up to the modern production concept or the increased safety requirements. The bales weigh up to 420 kilograms. At GWP Packaging they are on average twice as heavy as they were with the old machine. This bale density and weight also impresses the recycling companies: they pay more than they did before for the recyclable waste die cut pieces – around 450 tonnes every year. During the production process using an older baler press, the recyclable waste die cut pieces which were produced to be compacted no longer lived up to requirements. Technical faults resulted repeatedly in production stopping; the operation of the press was labour intensive; and the insuffi ciently compacted bales attracted poor prices on the recycling market.
standstill for us. So we cannot aff ord to compromise on technical quality.”
James added: “If it fails, production comes to a
Before aquiring the press, GWP Packaging assigned a full-time operator to manage the old baler. However, the new channel baling press operates independently. If it is full, a light beam triggers a horizontal pressing process. The collected material is compacted into bales with a specifi c pressing power of 75 newtons per square- metre and is then strapped automatically with wire.
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Operating effi ciency from production to disposal
The new HSM VK 4208 has been integrated into the production process and operates by means of air feeding. The waste which occurs at several die cutting machines is extracted by suction while production is ongoing and taken directly to the channel baling press to be shredded with blade ventilators into corrugated cardboard remnants.
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