Plastic Omnium claws back costs with pump technology

Manufacturer of plastic components for the automotive industry, Plastic Omnium, says it is saving energy and reducing material degradation thanks to the installation of new pump technology on its existing feed system.

The company has installed two ‘inverter-controlled claw pumps’ from Summit Systems, designed to enhance the vacuum driven flow of plastic pellets around factories, saving energy, material and breakdowns.

“We were looking for new ways to trim back on energy and material degradation over long distances and we were experiencing angel hair at the machines, explained Plastic Omnium’s Andy Baker.

“The inverter-controlled claw pump ticked both boxes and it fits into our existing material feed system. We were so pleased with the first unit we purchased a second unit and I am now looking at replacing our other units over the next few years.”

The inverter-controlled claw pump can save up to an average of 50 percent in energy requirements, as it can be programmed to different speeds depending on the distance of an injection moulding machine from a material bin. In addition, the controlled material flow contributes to less dust and material flowing at a consistent, lower speed, meaning a reduction in materials degradation and pipe wear.

The inverter control adds further value by speeding up material changes. When the line needs cleaning it quickens the pump, emptying residual material at maximum velocity.

The claw pump works by two claw-shaped rotors turning in opposite directions inside the casing. The specialist shape of the rotors causes air to be sucked in and compressed air to be discharged.

This action is reportedly superior to side channel and lobe pumps using around 50 percent of the energy, which, says Summit Systems, generally delivers a payback in less than a year.

Further costs are saved thanks to its powerful action, which transfers material at a higher density, allowing pipes to be thinner. A typical 11kw blower requires 60mm pipework; a claw pump system needs just 50mm saving around £1,000per km.