Sigma 160 The ultra performance Sigma 160 HMI adhesive dispense platform represents the state of the art in precision adhesive placement on conventional speakers, compression drivers, tweeters and microphone elements. Adhesive shot weight controls- Phase Automation's proprietary Active Air Control circuitry delivers unprecedented repeatability of shot weights over thousands of cycles- even with micro dispense amounts common to compression driver and tweeter assemblies. When properly setup in the recommended configuration, the Sigma 160 HIM will easily deliver 2.0 + Cpk numbers on a daily basis with 2.5+ being common with experienced users. While this does statistically minimize the chance of an under or over weight adhesive shot, the Active Air Control system takes things to the next level. The Sigma 160 HMI has built in interlock feature that will sound an alarm or override machine operation of any of the critical control parameters are out of range. When properly set up, the Sigma 160 HMI will not allow your operators to

The Sigma 160 HMI also takes care of other critical issues within the compression driver and tweeter manufacturing process. Adhesive bead placement accuracy is critical to both applications, particularly so with compression drivers. The Sigma 160 equipment is built on a rock solid chassis including a 20mm thick 6061 aluminum base, 14mm aluminum backbones and a 12mm back panel. The base, backbones and back panels are tied together to form a monocoque frame to support the actuator carriages responsible for dispense valve positioning. The carriages ride on precision 20mm shafting and premium quality slide bearing assemblies. Where most companies use a single shaft and bearing, The Sigma 160 platform employs dual shafts and 4 slide bearings for increased precision and rock solid stability. Carriage placement is manual with .1mm resolution and available with servo drive for fully automated operation.

Rounding out the capabilities of the Sigma 160 is the precision turntable set. Milled from 316 stainless steel, the turntable rides between taper bearings in a ultra high rigidity mounting cup integrated into the base of the machine. The turntable is precision ground to 50.0mm for stability and ease of use. Custom turntable sizes are available on request. All Sigma 160 HMI turntables have integrated vacuum in the center. The vacuum signal is fully adjustable from a strength and timing standpoint through the touch screen and via an adjustment needle.

Note: The Sigma 160 HMI is our most popular dispense platform for the processing of compression drivers, tweeters and microphone elements. This platform is also a favorite with micro-speaker manufacturing facilities. All of our customers report the same findings after using the Sigma 160 for a while- ultra reliable dispense shot weight and balance really makes a significant improvement in their yield and profitability.