The new TracStar500 Series 3 features additions over previous models, such as an indexer-mounted heater and facer, economy engine throttle setting and hydraulic clamping. The heater now is attached to the machine, and the engine saves fuel by throttling down when idle. The machine can fuse thermoplastic pipes from 6-in. IPS to 20-in. outer diameter in size. Both standard and automatic models are offered.