A new rotary conveyor for continuous feeding of solid silicone rubber or BMC thermoset compounds is available from Engel, York, Pa. The Engel roto-feeder is said to make short runs of up to 50,000 parts cost-effective. The screw feeder maintains constant pressure with closed-loop control and eliminates air, which avoids the need for costly rolling of silicone rubber, according to Engel. Also, the all-electric unit is said to be more energy-efficient and cleaner than a typical hydraulic stuffer. It’s available for machines with injection units of 310 cc and larger.
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RocTool’s year-old HD Plastics Materials Database further expanded.