Synergy Technologies offers Gravimetric Feeder. Synergy Technologies offer an extensive range of microprocessor based and analytical test and measuring instruments such as feeder or dosing system, temperature calibration etc. The Gravimetric Feeder, Item Code: Single-Screw consists of load cell based electronic weighing mechanism, weighing pan and gravity feeding mechanism and operates at high speed, feeding the material from hopper to the weighing pan. Once 90-95 per cent of material is fed, the flow automatically changes to dribble flow.