Roll adjusters. (Equipment).Hydraulic roll adjusters are available for mills and calenders. To meet the need for accurate roll position control in calender CALENDER. An almanac. Julius Caesar ordained that the Roman year should consist of 365 days, except every fourth year, which should contain 366, the additional day to be reckoned by counting the twenty-fourth day of February (which was the 6th of the calends of March) twice. and mill applications, two options are offered, including the standard and ultra electrohydraulic e·lec·tro·hy·drau·lic adj. Of, relating to, or involving a combination of electric and hydraulic mechanisms. e·lec control systems. The standard control option uses solenoid solenoid (sō`lənoid'), device made of a long wire that has been wound many times into a tightly packed coil; it has the shape of a long cylinder. operated direction valves for directional and speed control of large bore hydraulic cylinders. Linear position transducers provide position feedback to a PLC controller that is capable of maintaining roll position to +.007" of set point position. The ultra control option uses servo An electromechanical device that uses feedback to provide precise starts and stops for such functions as the motors on a tape drive or the moving of an access arm on a disk. solenoid valves with internal closed-loop electronics for directional and speed control of large bore hydraulic cylinders. Linear feedback transducers are wired to a closed-loop motion controller capable of maintaining roll position to [+ or -].002" of set point. (Rubber City Machinery, P.O. Box 2043, Akron, OH 44309-2043) Circle 32 on card [ILLUSTRATION OMITTED] |
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