Published On: Tue, Apr 28th, 2015

Plast 2015: Arburg presents Freeformers and efficient injection molding technologies

At Plast 2015, Arburg will present its Freeformer for the first time in Italy. Other exhibits in the injection molding area will include multi-component and liquid silicone rubber (LSR) processing, as well as applications for the packaging industry and the medical sector.

A Freeformer will combine standard acrylonitrile butadiene styrene (ABS) material with a special support material to produce a key fob featuring a ball joint. The supporting structures are simply removed later in a water bath.

plastic injection moulding machine

Plast 2015: Arburg presents Freeformers and efficient injection molding technologies

At the show, Arburg will also demonstrate a high-end application built around a hybrid Allrounder 720 H in the “Packaging” (P) version as an example for the drinks industry.

A 72-cavity mold from z-moulds is used to produce so-called PCO-1881 closures for carbonated soft drinks (CSD) in a cycle time of only around 3.5s. A Motan system is used for the material feed. The material throughput is over 160kg/h.

Downstream, the production system comprises a closure cooling unit made by Nova Frigo and an optical quality control system from Intravis.

An electric Allrounder 520 A with a clamping force of 1,500kN and a size 400 injection unit will demonstrate a thin-walled application. A two-cavity mold from DZ Stampi is used to produce lids with a part weight of 5.3g in a cycle time of around two seconds.

The production of ballpoint pen caps from two components will be demonstrated by a hydraulic Allrounder 520 S with a clamping force of 1,600kN and size 400 and 100 injection units. An 8+8-cavity mold from Fila is used here. The main body is produced from polypropylene (PP) in a cycle time of around 20s, after which it is overmolded with soft styrene-butadiene thermoplastic elastomer (TPE-S).

An electric Allrounder 520 E, with a clamping force of 1,500kN and size 800 injection unit will demonstrate the cost-efficient production of a technical medical part made from polyvinyl chloride (PVC).

An electric Allrounder 470 E with a clamping force of 1,000kN and size 290 injection unit will be configured for processing liquid silicone (LSR) iPhone covers weighing 21g in a cycle time of around 20s.

The mold is from Prover, while the LSR dosing system comes from 2 KM. Handling is performed by a Multilift Select robotic system with a load weight of 6kg.

The Multilift Select is the entry-level model among the linear robot systems from Arburg. It features servo-electric drive axes and is fully integrated in the Selogica machine controller.