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Coating Streak/Scratch

Quality Assurance Process OPTOMIZER©


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R.K.B. Joins Forces

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Where the Science of Quality Assurance is still an Art!



Asian Pulp and Paper Acquires R.K.B.

Reject Gate Control Technology


Reject Gate Control TechnologySyracuse, NY, July 20, 2009 - R.K.B. OPTO-ELECTRONICS, INC., A world leader in machine vision and web inspection design and supply, has received an order for its state-of-the-art Reject Gate Control Technology.  The equipment will be implemented on an Accura sheeter/sorter  and integrated into R.K.B. splice detector technology to ensure that each and every splice (joint) fault defect is rejected prior to stacking.  Simple and cost effective, the reject gate control solution will out perform any software devised technique currently in use by many leading sheeter/sorter manufacturers.  This technology will guarantee the reject of all splice defects with an average return on investment less than 30 days.  In this particular application, the Reject Gate Control Technology has been acquired by Asian Pulp and Paper Company, Pindo Deli Division located in Java, Indonesia.    


The Reject Gate Control Technology interfaces with a wide variety of web inspection, processing, and material handling equipment to provide automatic sorting or rejection of defective material. A precision encoder, combined with the unitís digital memory, makes it possible for the unit to determine how many complete sheets and fractional sheets are between the inspection system and the reject gate.  Since the precision encoder is hard coupled to the drive knife, system accuracy is not speed dependent.  The technology is designed to ensure that only sheets with defect faults are rejected. It can be used to process multiple products of differing lengths through front panel switch settings. A margin inhibit switch can be used to disengage the reject mechanism when a defect falls within 1/4 inch (6.35 mm) of the cut line (i.e., within a margin which will be trimmed later). If a large defect occurs that spans multiple sheets, the unit ensures that all defective sheets are rejected.  Reject Accuracy of this unit is 1/64" Max. (0.4 mm Max.) with a Margin Inhibit Range of 0.5 to 1.5% of Sheet Length.  Input to the device is a 9-12 VDC Pulse from defect detection equipment with outputs of 2.0 Amp at 20 VDC, DPDT Relay Contact @ 5.0 Amp rating or an option DPDT Relay Contact rated at 10.0 Amps.  Primary power to the unit is 120VAC through an R.K.B. supplied constant voltage regulator/power conditioner.  Total power consumption including reject solenoids is 50 watts or less.   The R.K.B. Reject Gate Control Technology can be combined with R.K.B. inspection equipment to form an integrated, single source, system for your sorting and inspection applications. The technology is also compatible with a wide variety of third party sensors and web inspection equipment to meet diverse needs. We can provide expert design, system integration, installation, and support to ensure success with your project.  Choose the R.K.B. Reject Gate Control Technology for faster, more reliable control of delivered product quality.


R.K.B. has pioneered the field of web inspection for paper, film, foil and allied web based materials.  Material colors, machine speed and caliper changes do not affect detection capabilities.   R.K.B. has developed and patented many of the technologies currently in use today such as infrared phototransistor technology, capacitive technology, ultraviolet technology and camera based technology.  R.K.B. was the first company to incorporate cameras as potential sensors back in the mid 1970's and patented this technique called the Vidicon 7000.  Today R.K.B. invests a majority of its finances to research and development in new sensor techniques.  Among our many innovations besides our splice detection technology, which is the world leading technology used for the detection of splices (joint), is our very successful coating streak and scratch defect detection technology.  This patented technology, now being emulated/copied, by various German inspection suppliers, detects streaks and scratches as small as 1 micron at any process speed.  R.K.B. OPTO-ELECTRONICS, INC., designs, develops, manufactures, and markets the most diverse line of machine vision and web inspection technologies currently available to web based material manufacturers. R.K.B., headquartered in Syracuse, New York, has offices and partners worldwide in Asia, Europe, South America and the Middle East.


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Tel #: (315) 455-6636
Fax #: (315) 455-8216


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