INJECTION MOLDING: New Robots & Teach Pendant

Servo robots for low overhead and modest cost.

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At NPE2015 this month in Orlando, Fla., Ranger Automation Systems Inc., Shrewsbury, Mass., will show two new all-servo linear robots and a new teach pendant. Ranger’s Ultra-Compact robot with a special triple-stage arm fits in low-overhead situations. The compound action reportedly also provides 50% greater takeout speed and extended stroke for lower part release on large machines. The Ultra-Compact series comes with three to six axes—the latter with a servo wrist.

Also new are RTA Series “value-priced” robots, which are said to be loaded with standard features that are costly options on many inexpensive imports. Powered by Allen-Bradley controls and drives, these units come with two pressure and two vacuum circuits with confirmation sensors, tool-less quick-change EOAT clamp, and fully teachable touchscreen pendant. Five models fit machines from 50 to 1500 tons.

Meanwhile, the new GT1455 teach pendant is now standard on all its linear robots. The pendant’s Quick-Teach mode allows users to teach a complete program in three steps. Cycle Match feature automatically adjusts the robot speed to the molding cycle, insuring it keeps pace without moving too fast, which causes unnecessary wear on the robot. It also has conditional If-Then programming to sort parts based on input from QC monitors. The device uses Ethernet communication for fast screen response and includes a USB port for program backup.