Sitex CK's control systems use a bus system to activate piezoelectric actuators in real time for knitting mills. A Sitex M actuator module connected to the control system regulates all machine functions and rotary speeds. It features pattern memory for repeat sizes of up to 28 million stitches, continued knitting after power failure, and real time actuation of bending transducer modules on conventional machine sizes. Interex's TT-1 circular knitting machine features up to 4,096 needles; 90 selectors; and 34 inch x 50 feed x 14, 16, 18, or 20 gage for knitting fine gage interlock garment lengths with rib borders and separation yarns. N.T. Technologies offers a conversion from the mechanical circular knitting machine to electronic control, which reduces programming and sampling time, allows a variety of knit patterns, and lowers costs.