Rotary Auger Valve

Techcon Systems TS5000 Rotary Microvalve is a self-contained fluid dispensing valve capable of depositing small accurate shots down to 0.010” (0.25mm) in diameter at rates of 5 or more per second. Fluids can also be accurately dispensed in continuous beads in widths that range from 0.010” – 0.050” (0.25mm – 1.27mm) at rates up to 4” (102mm) per second.

The unique design ensures that material is constantly present at the feed screw inlet, while the controlled rotation of the feed screw moves the material from the feed to the discharge point. Discrete control of the forward and reverse rotations of the feed screw controls the amount of material discharged.

The TS5000 dispenses fluid with a positive displacement action using a rotary feed screw principle which creates very high pressure at the dispense tip hub. Fluid material is held in a syringe barrel under a positive head of low air pressure – between 4 – 30psi (0.28 – 2.1bar) depending upon the viscosity of the material. This positive air pressure (supplied by the air line) forces the fluid material out of the reservoir to the feed screw chamber. The unit is lowered down to a pre-set distance, between the tip end and the substrate, by automation equipment and a timed DC voltage “signal” is sent to the motor. The motor drives the feed screw for the time required and delivers a shot of material from the tip.