A manufacturer of ride-on suitcases has cut its energy costs by £7,800 per year by retrofitting an ABB variable speed drive (VSD) to one of its moulding machines.
Magma Moulding produces the Trunki ride-on suitcase, as well as a number of other plastic moulded products for customers in the automotive, safety, consumer goods and military sectors.
Up to 23,000 Trunki suitcases are produced at the company’s Plymouth facility each month, 1,000 per production day. The two halves of the cases are made on two moulding machines. One of these machines is 15 years old while the other is only three years old.
The moulding machine has a 65-second cycle time. Around 30 percent of the cycle time is spent off load, during which the hydraulic system is not in operation but the pump motor is still running at maximum speed.
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