Missing Ply (Web) Detection Technology

United States Machine Vision Leading Supplier of Quality Control and Assurance Technologies

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MISSING PLY (WEB) DETECTION

TECHNOLOGY

Where the Science of Quality Assurance is still an Art!

This splice detection technologies proven performance reduces costs and downtime, ensures product quality, minimizes operator intervention and immediately responds to changing conditions.


TECHNICAL SPECIFICATIONS
Defects Types Detected:	Missing Plies Splices (Joints) Web Breaks Metal
Material Compatibility:	Papers Plastics Films Other Non-metallic Materials
Web Thickness:	0.25" Max. (5.08 mm Max.)
Gap Width:	0.25" (6.35 mm)
Maximum Web Speed:	No limitations
Relay Alarm Outputs: Dry Output Contact Closures: Current Capacity at 110 VAC: Current Capacity at 220 VAC: Alarm On Period:	2 (Non-inductive) 0.1 Amp 0.05 Amp 1 Second
Electronic Alarm Output: Pulse Outputs: Voltage: Direction: Duration:	1 15 V (± 3 V) Positive Going 10 ms
Ambient Temperature:	40 to 160° F (4 to 70° C)
Dimensions:	6.0" X 7.5" X 4.37" (15.24 cm X 19.05 cm x 11.1 cm)
Power:	110/220/240 VAC 50/60 Hz Single Phase
Weight:	10 lbs/ 4.53 kilogram
Specifications are subject to change without notice. Note: If you web speed is less than 100 fpm, specialized circuitry may have to be applied. Additional fees may be applied.

Reliability Equals Profit: The reliability of our missing ply detection technology is unparalleled in the industry. Regardless of the application, machine or surroundings, our sensors will not quit. Our technology does not require operational intervention, adjustments, re-calibration and monitoring, unlike ultrasonics and photo electrics. Our technology is not designed as the “Quick Fix”, but is a committed investment that ensures cost effective quality assurance and control that translates into a much higher ROI and increased profitability.

Ensure Product Superiority: For most multi web (ply) processes, conventional photocells, ultrasonics, resistive and inductive sensors face many difficulties in reliable detection. Issues such as basis weight variations all too often create either false signals, or in most cases, no signal at all.

	Coaters
	Extrusion
	Laminators
	Rotogravure
	Slitters
	UV Flexo Press
	Embossers

Many conventional approaches use two, three and even more sensors in an attempt to achieve what “ONE” MPT1478 missing ply detector provides. While false signals are bothersome, the absences of a signal is damaging and can cost tens of thousands of dollars in erratic machine performance, product quality, customer complaints, and damage to sensitive components.

Simple, Quick and Effective: Easy to set up and operate, and harmonious with logic systems and programmable controllers, the MPT1478 missing ply detector can be easily integrated on any application that calls for the detection of missing plies, as well as splices, metal chips and web breaks. Modular in design, our missing ply detector requires no operational intervention complicated setup procedures or constant tweaking.

Unaffected by Conditions: Unaffected by web width, grade chances, number of webs or plies, material color, machine speed, and printed surfaces, our missing ply detection technology is truly plug and play. Maintenance free; you will save time and money since our missing ply detection technology is self-calibrating to any process for which the sensor is applied too. Available as an all in one unit or custom oriented to the application, the standard for missing ply detection is clear; the standard is the SDT MPT1478. Both a signal contact closure and a signal digital pulse output are included with each unit to facilitate interfacing to control production equipment such as sheeter gates, coating head applicators, presses, laminators, treaters, audio/visual alarms as well as automatic marking systems.

Benefits Gained
	Eliminates damage to embossing and perforating rolls
	Eliminates roll wrap ups
	Monitors the entire multi-web (ply) makeup at one convenient point as they leave the embossing station
	One sensor, one job, multi webs – no need for complicated sensor arrangements, installations and integration.

Innovative Solution for Pioneering Industries: This innovative sensing solution is applicable to industries that convert plies of nonconductive materials such as multi-ply films, multi-ply tissue, multi-ply fibrous materials, multi-ply laminates, PTFE-based ply material, multi-ply flexible material, multi-ply pressure-sensitive material, multi-ply paper sack, and multi-ply medical materials as well as many other consumer and industrial products. The SDT MPT1478 missing ply detection system uses state-of-the-art capacitive, non-contact sensing technologies. Immune to grade changes, material color, type of material and machine speed, the SDT MPT1478 missing ply detection system will never miss an absent ply, splice, or web break.

Call RKB: Call today to discuss your web inspection application and to learn more about the industry's most diverse line of machine vision web inspection, hole detection, splice detection and control products.

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Coating Streak/Scratch

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MISSION STATEMENT

R.K.B. OPTO-ELECTRONICS is a designer and manufacturer of high-speed machine vision web inspection technologies and related products. We are committed to web based material manufacturers, converters, customers and our industry that depend on us to guarantee that product superiority is maintained at the highest possible level. We are dedicated to increasing customer satisfaction, continuously improving our products and services, and providing opportunities for our employees to achieve their maximum potential.

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