doctor roll

doctor roll

[′däk·tər ‚rōl]
(chemical engineering)
Roller device used to remove accumulated filter cake from rotary filter drums.
(engineering)
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References in periodicals archive ?
001 increments or high speed course adjustment with the touch of a button; 360[degrees] registration; PLC controlled; doctor roll system that carries ink to the anilox, designed to run at 750 fpm without slinging ink; high capacity dryer package for non-absorbent material, controlled separately at each station; closed loop unwind, infeed and rewind with electronic tension controls; intelligent register that monitors and holds register during acceleration, eliminating product waste; and all print stations are UV-ready.
It has motorized doctor roll adjustments and substrate thickness setting; 15-minute roll change using one tool only; auto-clean cycle for end of shift clean-up; 2-motor drive for precise application rates of coating and adhesive and more.
It is a single top roll coater with reverse rotating doctor roll and a conveyor feed.
The GMC may not find in your favour but most doctors are scared of it and you will probably find that your doctor rolls over quite quickly.