Product Information

Length and Speed Encoders

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Converters of paper, film and foil products have applications where they need to tightly control the length and speed of product during production. Applications include continuous length measurement, differential speed control, cut-to-length control, product positioning, printing and coating application control, and other demands. Most manufacturers depend on the accuracy of their drive speeds or mechanical contact encoders.

But, mechanical encoders can lose contact on various product surfaces due to slippage or web vibration, and require frequent calibration because of mechanical wear and tear. A contact encoder with inaccuracies as much as 2% can cost a converter a significant amount of money due to product give-away, waste, maintenance and system downtime. To solve this problem, manufacturers have installed the LaserSpeed non-contact gauge on their production line to directly measure the length and speed of product. It is a direct replacement for error-prone mechanical contact encoders.

The LaserSpeed gauge uses advanced, laser-based technology to precisely measure the length and speed of product during production without making contact with the material. It projects a unique pattern on the surface of the product. As the product moves, light is scattered back to the LaserSpeed gauge. This information is translated into product speed and pulses are produced to determine the product length. Length and speed measurements are captured with better than ±0.05% accuracy and ±0.02% repeatability.

LaserSpeed gauges are used in a wide range of web and packaging converting processes for precisely measuring product length and speed at the slitter/rewinder, regulating coating/laminating applications, controlling critical length cutting operations, and monitoring web tension of products, to name a few.

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About us

NDC Technologies (part of Spectris plc) are worldwide leaders in the design and manufacture of measurement and control solutions for a wide range of industrial processes. Headquartered in Irwindale, California, we have manufacturing facilities in California, Dayton, Ohio, Maldon and the UK. Direct sales and support are provided from locations all over the world such as China, Japan, France, Germany and Italy and include a highly trained network of Sales and Service distribution channels across 60 plus countries.

We cover a wide range of industry sectors, using measurement techniques designed to improved quality and productivity.

Chemicals and Pharmaceuticals
We provide chemical, pharmaceutical and other associated industries with solutions for a wide range of moisture gauging applications including optimizing the drying process, improving productivity, monitoring and controlling product quality and reducing energy costs and fossil fuel consumption.

Film and Sheet Extrusion
NDC has one of the biggest ranges of film thickness and control solutions for blown film, cast film, biax film and sheet, including barrier layer thickness measurement for multi-layer films.

Food Processing
NDC have a long history of specialising in food measurement, fat and protein measurement.

Metals Industry
NDC have over 60 years’ experience in high performance measuring systems including AccuRay and IRM brands.

Minerals & Bulk Materials
We have liaised closely with industry to develop our moisture measurements and control systems for a wide range of processes to enable process control of minerals and bulk materials.

Nonwovens & Textiles
NDC offer a wide range of gauges to provide accurate measurements for nonwovens, textiles and manufacturing processes

Coating, Laminating & Converting
NDC have a wide range of web gauging and control technologies for coat weight measurement, coating thickness measurement and more.

Rubber and Vinyl Calendering
NDC measure weight and thickness measurement and offer control solutions for adhesive calendaring, vinyl calendaring and rubber calendaring.

Pipe & Tube
NDC work with our customers to provide them with reliable solutions, improve product quality and keep costs low.

Tobacco Processing
NDC are now into their 8th generation of tobacco analysers, providing fast accurate single or multi-component measurements. We provide solutions for tobacco leaf processing, primary tobacco processing and reconstituted sheet tobacco.

Wire, Cable and Fiber
NDC work with our customers to provide them with reliable solutions, improve product quality and keep costs low.

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Company details for NDC Technologies

NDC Technologies