Variable aperture feeder

Also referred to as a motorised gate feeder, they are used to control or measure the flow of material from a feed hopper.

Our standard feeder is suitable for stone hoppers with material up to 40mm. However, because we design and manufacture we can tailor a feeder to your particular requirements. Feeders are calibrated to give required flow rates, and can be installed as a replacement unit or as part of an integrated system with data logging facilities.


  • Feed rate of up to 800 tonnes per hour
  • Suitable for stone from 6mm - 40mm
  • Microprocessor controlled for accurate calibration
  • Sub frame for independent feeder support
  • Robust construction for low maintenance and long operational life
Variable aperture feeder