MACHINERY | PELLETISERS
Separation ups quality
From left: Separation sales manager Mario Bortolussi, OCS sales manager Markus Piepenbrink, and Separation delegated administrator Jürgen Greiwing in the company’s Belgian plant
Belgium-based pellet sorting specialist Separation has invested in a PS25C pellet scanner from German technology specialist Optical Control Systems (OCS) to ensure the quality of its production. Part of the Greiwing Group, Eynatten-based Separation has specialised in optoelectronic sorting of plastic pellets for the past 20 years. Key markets it supports include automotive and pharma- ceutical, where even the smallest contamination can be visible in the end product and potentially result in malfunction. The PS25C pellet scanning system is used to ensure the quality
of its sorted products. Random samples of 500g of pellets are taken during and at the end of the sorting process and scanned for defects by the PS25C using its LED-based 3-CMOS industrial camera. A multi-track flap system eliminates contamination as small as 30 microns across an inspection channel 60mm wide. Up to 12kg of pellets can be inspected in less than an hour. If any impurities such as black specs are found in the sample, the batch can be separated again until the required quality is met. “We guarantee our customers high-quality services,” says
Jürgen Greiwing, delegated administrator at Separation. “With this analyser…we are once again significantly increasing reliability.” �
www.separation.group
strand die plates and features an angled blade that reduces “interrupt” from the blade crossing die holes — increasing throughput by adding relief clearance once the blade passes. The single-direction wipe action is away from
the operator and is guarded for operator safety. The blade and mounting arm can be adjusted to achieve optimal preload to the die face while a two-axis actuation lifts the blade from the face when parked, keeping the blade cool to reduce adhesion with molten polymer. This also allows good access to the die plate. The automatic die wipe system incorporates a 38mm (1.5-inch) wide brass blade and can be used with single or dual-row strand dies with die face widths of 150-1,000mm (6-40-inches). The com- pany says it offers custom mounting options for the unit, which is available for standalone operation or integrated into strand line PLCs.
Fast sharpening BPM has also introduced a rotor sharpening service, which it is marketing as BPM Fast Track, to help compounders keep their pelletisers running at peak performance. The company says when pelletiser rotors lose their edge, honing them isn’t as simple as sharpening a knife because the rotors have three distinct angles that all require special- ised processes to sharpen properly. According to the company, its Fast Track technicans can work with every brand of rotor and even build new rotors if required. “One-week turnarounds for sharpening are not unusual for us,” says Ryan Brant, BPM’s rotor cell manager. “If the repairs require welding, that takes two weeks.”
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IMAGE: SEPARATION
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