Two types of Rod Feeders are offered:
- Single Rod Feeder (SURF) , where a single grain refining rod with nominal diameter 9.5-9.7mm is fed into the cast at a wide range of speeds.
- Twin Rod Feeder (TURF) , where two ( or one + one on standby) grain refining rods with nominal diameter 9.5-9.7mm can be fed into the cast at a wide range of speeds simultaneously using a common drive shaft.