Pruftechnik

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India
PRUFTECHNIK AIMIL Condition Monitoring Pvt. Ltd.
6th Floor, Mayfair Atrium
Opposite, Delhi Public School
Near. Kalali – Vadsar Ring Road, Vadodara
390012 Gujarat
India
India
NDT Technologies (P) Limited
Plot No. W-198, TTC Industrial Area,
MIDC Kopar Khairane
400 709 Navi Mumbai
India

ParAlign
Roll Alignment Services

ParAlign Roll Alignment Services from the innovators of inertial alignment.

ParAlign is a unique, non-optical measurement method using inertial technology designed to measure the parallelism of rolls in production installations in the paper, print, converting, steel industried and web-handling/ roll to roll transfer processes.

Misalignment in rolling machinery can lead to wasted material, inconsistent or low-quality products, and excess machine wear. Properly aligned rolls perform better, create more consistent products, and reduce wear and tear on machinery.

Three ring laser gyroscopes enable the ParAlign to take measurements in three-dimensional space (roll, pitch, and yaw). No line of sight is required, which creates consistent, reproducible results.

Free product demo
Years of experience
have already used PARALIGN
Plants worldwide have already used ParAlign
measured with PARALIGN
Rolls measured with ParAlign

Why choose a ParAlign Service?

How can we help you?

Please send us your inquiry and our experts will get back to you shortly

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Training

We offer alignment, vibration & balancing, ultrasound, and reliability training.

Find a course

Types of Services

The Pruftechnik Services team offers two types of roll alignment utilizing the ParAlign gyroscopic technology:
the ParAlign Service and the Peak RGA Service.

The ParAlign Service is performed with the ParAlign alone. When performing the service, the device is placed on a roll and swept a minimum of 20 degrees about the roll's circumference. The ParAlign can be positioned anywhere along the circumference of the roll as long as there is enough clearance to complete a proper measurement using the SWEEP method. This flexibility allows for rolls to be measured on the top, bottom, or sides, depending on which is most accessible.The measurement takes about 30 seconds, and results are instantly transmitted wirelessly to a laptop.

The Peak Roll and Geometrical Alignment (RGA) Service is a total alignment solution combining the ParAlign with laser trackers to align rolls and their surrounding structures in the shortest time possible—while producing accurate results and instant visual reports. No other roll alignment method combines gyroscopic and laser tracker technology.

Frequently Asked Questions

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Why roll alignment?

Well-aligned rolls—that is, rolls which are parallel to each other—improve product quality and increase productivity through higher machine availability and production output.

The parallelism of rolls is critical when machines run at high speeds or when rolls are in close proximity.

Why should rolls be parallel?

Rolls should be parallel to ensure that the product being created is uniform and of good quality. Parallel rolls reduce or eliminate these issues: uneven bearing stresses, tracking, web breaks, uneven coating, wrinkling, delamination, warping, roller surface wear, tension irregularities, and more. Proper roller alignment minimizes waste, downtime, and maintenance costs.

The parallelism of rolls becomes even more important when machines are running at high speeds or where the web has high contact wrap with rollers.

Why use ParAlign?

It is the fastest roll measurement method on the market.

With a quick setup procedure and measuring process, entire machines can be measured during short maintenance outages. Results are instantaneously displayed, allowing necessary corrections to be made swiftly and adjusted rolls to be re-measured immediately.

The Peak RGA service can even measure rolls in enclosed sections or across multiple machine levels because, unlike optical measurement systems, the ParAlign does not require a line of sight. Also, no baseline is needed for the measurement because the offset is defined in relation to a reference roll.

How does the ParAlign work?

Roll alignment in steel manufacturing with PARALIGN

Three ring laser gyroscopes enable the ParAlign to take measurements in three-dimensional space (roll, pitch, and yaw). No line of sight is required, which creates consistent, reproducible results.

In performing a measurement, the device is placed on a roll and swept a minimum of 20 degrees about the roll's circumference. The ParAlign can be positioned anywhere along the circumference of the roll as long as there is enough clearance to complete a proper measurement using the SWEEP method. This flexibility allows for rolls to be measured on the top, bottom, or sides, depending on which is most accessible.

The measurement takes about 30 seconds, and results are instantly transmitted wirelessly to a laptop.

What is the smallest roll the ParAlign can measure?

Roll alignment in a converting plant with PARALIGN

The smallest roll it can measure is 43 cm (25 inches) in length and 8 mm (0.315 inches) in diameter.

Does accuracy depend on the location of the roll?

The ParAlign does not drop in accuracy based on location, elevation, or proximity.

How are reports made available?

Alignment report showing roll misalignment

The graphical readout is displayed in the custom software as soon as each roll is measured. A full report, with initial and final alignment results, is provided to the customer upon completion of the service.

Is Peak RGA a tool or service?

Peak RGA is a service combining the ParAlign with laser trackers to measure all roller assets in the shortest time possible—while producing accurate results and instant visual reports. No other roll alignment method combines gyroscopic and laser tracker technology.

Do you need optics to set up your measurements?

The ParAlign does not require a visual line of sight to gather alignment data. This means it can measure enclosed oven rolls, tower rolls, or rolls located across multiple floors or levels. However, the software can incorporate optical data from a baseline if required.

What is inertial technology?

PARALIGN gyroscope no inclination

The ring laser gyroscopes of the ParAlign keep their rotation axis unchanged—even when their base is shifted. This means that the ParAlign can identify its relative position in space at any time.

PARALIGN gyroscope with inclination

This same technology is commonly used in aerospace navigation systems. For example, the U.S. Mars Reconnaissance Orbiter also features three ring laser gyroscopes for each axis. They measure how fast and how far the spacecraft turns and can even be used to estimate the spacecraft's orientation.

Roll alignment with PARALIGN

PARALIGN is the fastest roll measurement method in the market

PARALIGN increases machine availability and product quality

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Press Section

  • Prolong lifetime of wires, felts, and roll covers

  • Decrease folds and creases

  • Ensure uniform moisture profile

Drying Section

  • Prolong lifetime of fabrics and roll covers

  • Decrease folds

  • Ensure uniform thickness profile

Calendar section

  • Prolong lifetime of bearings and rolls

  • Decrease paper folds and breaks

  • Reduce waste

  • Ensure uniform winding

Roll parallelism: Our tolerance values are based on 15 years of experience

PARALIGN helps prevent web folds, creases, and the so-called “long sides”

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Blow Film Extrusion Line

  • Prevent and reduce ‘long sides’, or the asymmetric winding of the web

  • Ensure uniform thickness profile

  • Decrease folds, creases and web breaks

  • Increase product quality

  • Reduce waste

Roll parallelism: Our tolerance values are based on 15 years of experience

PARALIGN is used to align rolls in flexo, digital, offset, and gravure presses

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Printing Press

  • Reduce maculature, spoilage, and waste

  • Decrease web folds and breaks

  • Short setup times when the product is changed

  • Correct passers and gauge pins

PARALIGN can even measure rolls over long distances and rolls that are difficult to access

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Tandem rolling mill

  • Prevent asymmetrical thickness profile

  • Decrease web movement due to improved position of the support rolls

  • Ensure uniform surface density

Push Pull Pickling line / cold rolling mill

  • Prevent strip misalignment

  • Reduce downtime due to strip failure

Roll parallelism: Our tolerance values are based on 15 years of experience