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The energy-efficient LSR injection molding system that Engel North America (York, PA) will demonstrate at the PLASTEC West show in Anaheim, CA (February 8-10, 2011), offers both high-performance production and help with California energy costs. During the show, the 30-ton Engel e-victory 80/30 US machine, which includes automatic part removal and inspection, will be molding LSR (liquid silicone rubber) plunger tips in a two-cavity, cold-runner mold made by Roembke Mfg & Design (Ossian, IN) in 15-second cycles.

PlasticsToday Staff

January 10, 2011

2 Min Read
Injection molding: Engel hybrid LSR system at PLASTEC West brings all-electric energy efficiency

The energy-efficient LSR injection molding system that Engel North America (York, PA) will demonstrate at the PLASTEC West show in Anaheim, CA (February 8-10, 2011), offers both high-performance production and help with California energy costs.

During the show, the 30-ton Engel e-victory 80/30 US machine, which includes automatic part removal and inspection, will be molding LSR (liquid silicone rubber) plunger tips in a two-cavity, cold-runner mold made by Roembke Mfg & Design (Ossian, IN) in 15-second cycles.
 

Engel e-victory injection molding system

Engel e-victory molding system at PLASTEC West, Anaheim.

Engel e-victory systems combine a precision servo-electric injection unit with the company's well-proven tiebarless hydraulic clamping unit, then add in the company's new ecodrive system to make it as energy-efficient as an all-electric machine.

The ecodrive technology is a drive system based on servomotors that control drive speed independently of the speed required by the machine movements. The drive is active only during machine movements, dropping to virtually zero, as Engel says, when the machine is not in motion, unlike traditional asynchronous drive hydraulics that continuously pump hydraulic oil through the system.

Lower energy consumption is by no means the only benefit of this system's technology. Cooling water requirements are lower than for standard hydraulic systems because hydraulic oil is not heated by constant movement. In fact, Engel says machines with ecodrive will not need oil cooling, another energy saver. And since there is lower heat, there is minimal heat-related air turbulence, which Engel says suits the e-Victory for cleanroom work.

The machine includes as standard clamping pressure lock-in, meaning clamping pressure is locked into the sealed hydraulic clamping system using a non-return valve. No energy is consumed in maintaining clamping pressure.

Engel says the total saving of energy can be up to 70% of than consumed by a comparable traditional hydraulic molding machine, similar savings to an all-electric system. And unlike an all-electric machine, molds with hydraulic components such as core-pulls can be used.

Other features of the Engel e-victory system at Plastec West include a part removal and vision system from Design Facts, material feeding technology from Fluid Automation Inc., LSR material from Wacker Silicones, and colorant by Gayson SDI

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