Plastics Technology

APR 2017

Plastics Technology - Dedicated to improving Plastics Processing.

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HEATING/COOLING INJECTION MOLDING 'Most Efficient' Chiller for Plastics Is Coming in July Absolute Robot Inc., Worcester, Mass., has introduced the MaxBW10 full-servo robot with payload capacity of 26 lb and vertical stroke of 1500 mm. It has a telescoping vertical arm and linear guides with hardened steel rails. The beam-mounted control box saves space, and LED lights on all proximity switches and vacuum sensors eliminate guesswork when troubleshooting. 508-792-4305 • absoluterobot.com If you've attended overseas plastics shows lately, you may have seen them in action. Now they're available in the Americas: Roboshot all-electric secondary injection units from Fanuc of Japan are being sold here by Milacron Holdings Corp., Cincinnati. The Fanuc Roboshot SI-20A is a vertically mounted injector with Fanuc's latest control and user interface. It's compatible with Roboshot Alpha and B-Series presses from 50 to 300 metric tons and is said to offer the same accuracy and repeatability as the latest Alpha Series Roboshot machine. It has a shot capacity of 0.63 oz and can be operated from the Roboshot press's controller or from its standalone operating screen. The SI-20A can also operate the rotary mold table and can be linked to the Roboshot-Linki plantwide production and quality data-management system. Milacron also plans to offer Fanuc's SI-300HA horizontal secondary injection unit of 4.87 oz shot capacity in the second half of this year. 513-536-2000 • milacron.com/plastics What is billed as "the most efficient industrial process chiller on the market" will be launched in July by Delta T Systems, Richfield, Wis. The new line will start with small portable chillers of 1 to 15 tons, with larger portable and central models to follow thereafter. These units are loaded with features that are either "firsts" in the field of process chilling, or still quite rare for smaller chillers, or standard capabili- ties that are usually expensive options. Foremost among these is variable-speed compressor technology, used for 20 years in the HVAC industry but reportedly never before in process chilling. The system monitors the process temperature and signals the drive to speed up or slow down the compressor. It does away with wear and tear of on/off cycling of the compressor or wasteful hot-gas bypass valves. Compared with conventional fixed-speed compressors, the new technology uses 30% to 50% less energy, according to Delta T Systems, and pays for itself in two to three years. (The savings are analogous to those from variable-speed hydraulic pump drives vs. standard fixed-speed pumps in molding machines.) Other special features include variable-speed condenser fans with permanent- magnet motors, oversized evaporators, electronic expansion valve, compressor soft start, controls with extensive data-collection, and remote-communication option for Industry 4.0. Together, these features are said to provide unusually tight temperature control of ±0.5° F. (Look for full details next month.) 800-733-4204 • deltatsys.com Robot for 500-800 Ton Presses All-Electric Secondary Injectors in Vertical Or Horizontal Format INJECTION MOLDING 62 APRIL 2017 Plastics Technology PTonline.com With Technology Keeping Up

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