ENERGY MANAGEMENT | MACHINERY
High electricity prices and ongoing pressure to reduce carbon emissions mean that moulders are keener than ever to find ways to raise the energy efficiency of their production processes
Energy rating: raising efficiency in moulding
As demand for injection moulding rises – especially in packaging and automotive – so do concerns about its environmental impact due to high energy consumption. Running for extended periods at elevated temperatures and pressures – plus the need for cooling – makes injection moulding highly energy-intensive. Factor in the high cost of energy, and it makes sense for moulders – and machinery makers – to find ways to reduce energy consumption, boost productivity and raise efficiency.
Electric switch
One way to achieve this is to switch to all-electric machines. This approach was adopted recently by UK-based Lotan, which specialises in packaging for industries including food and beverage, cosmetics and pharmaceuticals. Its aim was to balance functionality, cost-effectiveness and eco-friendliness.
www.injectionworld.com
It has begun using all-electric injection moulding machines from Shibaura Machine – supplied in the UK by TM Robotics. Switching to the machines has led to energy savings of up to 40% compared with traditional hydraulic machines, says TM – plus improvements in performance. “Lotan has ordered several more Shibaura machines – specifically in its newest SXIII range,” said Nigel Smith, managing director at TM Robotics. Shibaura machines have clamping forces of 50-2,500 tonnes, which can be calibrated by a digital direct screw transfer (DST) control for extra production flexibility. Other benefits include faster injection speeds and lower cycle times. A user- friendly interface and Internet of Things (IoT) integration can help to simplify operations and support preventive maintenance.
Internal tests – comparing the performance of a 650-tonne, all-electric Shibaura EC650SX-61B IMM
July/August 2024 | INJECTION WORLD 27
Main images: Heinrich Axmann is using an EcoPower Xpress from Wittmann to mould a clear plastic food bowl
IMAGE: WITTMANN
IMAGE: WITTMANN
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