On-site Measurement & Alignment Services

Accurate measurements for better maintenance decisions

PR Rolls provides professional on-site measurement and alignment services for paper mills, board mills, pulp mills, power plants and other heavy industries.

Using advanced laser measurement technology and precision measuring equipment, we measure, analyse and verify the condition of rolls, cylinders and industrial machinery directly at the customer's site.

Accurate measurements are the foundation of successful maintenance. They allow maintenance teams to identify wear, misalignment and dimensional deviations before they lead to production problems, unnecessary repairs or unplanned shutdowns.

By combining measurement services with engineering expertise and corrective maintenance, PR Rolls helps customers improve machine reliability, optimise maintenance planning and maximise equipment performance.

Why Accurate Measurement Matters

Modern production equipment operates within extremely tight tolerances.

Even small deviations in alignment or machine geometry can affect:

Machine runnability
Product quality
Bearing lifetime
Roll performance
Machine vibration
Energy consumption
Maintenance costs
Production efficiency

Without accurate measurements it is impossible to determine whether equipment is operating within specification.

Measurement therefore forms the basis for all successful maintenance and optimisation work.

Measurement, Analysis and Optimisation

PR Rolls does more than measure machinery.

Our engineers use measurement data to understand the condition of the equipment, identify root causes and recommend the most appropriate corrective actions.

The collected data supports:

Maintenance planning
Shutdown preparation
Machine optimisation
Grinding decisions
Machining requirements
Roll replacement decisions
Balancing requirements
Alignment corrections

Instead of relying on assumptions, maintenance decisions are based on accurate measurement data.

What is On-site Measurement?

On-site measurement is the process of measuring machine geometry, alignment and dimensional accuracy directly at the customer's premises.

Using advanced laser systems and precision measuring instruments, PR Rolls can verify the condition of large industrial equipment without dismantling major machine sections.

Typical measurements include:

Roll alignment
Cylinder alignment
Shaft alignment
Machine geometry
Straightness
Flatness
Parallelism
Concentricity
Runout
Machine centre lines
Foundation geometry
Position measurements

Advanced Laser Measurement Technology

PR Rolls uses modern laser measurement systems capable of measuring large industrial machinery with exceptional accuracy.

Laser measurement technology provides:

High measurement precision
Fast data collection
Excellent repeatability
Digital documentation
Reliable verification

Compared with traditional measurement methods, laser technology enables faster inspections while providing highly accurate digital measurement data that supports engineering analysis and maintenance planning.

Laser measurements are particularly valuable for large paper machine sections where conventional measuring methods are difficult or time-consuming.

Machine Alignment Services

Correct alignment is essential for reliable machine operation.

Misalignment increases mechanical loads and can lead to:

Bearing failures
Increased vibration
Coupling wear
Seal failures
Uneven loading
Reduced machine lifetime

PR Rolls performs precision alignment using laser measurement systems for:

Paper machine sections
Rolls
Cylinders
Shafts
Machine frames
Foundations
Rotating equipment

Correct alignment improves machine reliability while reducing long-term maintenance costs.

Machine Geometry Measurements

Large industrial machinery depends on accurate machine geometry.

PR Rolls measures:

Straightness
Flatness
Parallelism
Perpendicularity
Roll centre lines
Cylinder positions
Machine positions
Foundation geometry

Machine geometry measurements are particularly important before:

Major rebuilds
Equipment installations
Precision machining
Roll replacement
Alignment corrections

Accurate geometry ensures that subsequent maintenance work is performed under the correct conditions.

Roll and Cylinder Measurements

PR Rolls specialises in the measurement of large industrial rolls and cylinders.

Typical inspections include:

Diameter measurements
Runout measurements
Roundness
Straightness
Journal measurements
Bearing positions
Roll deflection
Surface geometry

These measurements provide valuable information before grinding, machining, balancing or coating.

Measurements Before Maintenance

Every successful maintenance project begins with reliable measurement data.

Before carrying out:

Grinding
On-site machining
Thermal spray coating
Field balancing

PR Rolls measures the current condition of the equipment to determine:

Surface deviations
Alignment
Machine geometry
Dimensional accuracy
Repair requirements

This ensures that corrective work is based on objective engineering data.

Measurements After Maintenance

Measurement is equally important after maintenance has been completed.

Verification measurements confirm that:

Alignment has been restored
Required tolerances have been achieved
Machine geometry meets specification
Roll positions are correct
Equipment is ready for operation

Customers receive documented measurement reports verifying the completed work.

Digital Measurement Reports

Every measurement project can be documented through detailed digital reporting.

Reports may include:

Measurement results
Alignment data
Machine geometry
Before-and-after comparisons
Dimensional deviations
Engineering recommendations
Corrective actions

Digital reports provide valuable documentation for future shutdown planning and long-term maintenance strategies.

Measurement During Planned Shutdowns

PR Rolls performs measurements during scheduled maintenance shutdowns to minimise production interruptions.

Measurement services can be combined with:

Grinding
On-site machining
Thermal spray coating
Field balancing
Roll inspection

By combining several services during the same shutdown, customers reduce both maintenance time and overall project costs.

Typical Measurement Applications

PR Rolls performs measurements for:

Paper Mills
Roll alignment, dryer sections, calenders, reel sections and complete paper machine geometry.

Board Mills
Machine alignment and dimensional verification of production equipment.

Tissue Mills
Measurement of Yankee cylinders, drying sections and machine alignment.

Pulp Mills
Measurement of rotating equipment, rolls and process machinery.

Steel Industry
Machine geometry, alignment and foundation measurements.

Power Plants
Measurement of rotating equipment, shafts and machine foundations.

From Measurement to Optimisation

Every PR Rolls measurement project follows a structured engineering process.

1. Inspection
The machine and maintenance requirements are evaluated.

2. Precision Measurement
Laser measurement systems record geometry and alignment.

3. Engineering Analysis
Measurement data is analysed to identify deviations and root causes.

4. Recommendations
Our engineers recommend the most appropriate maintenance actions.

5. Corrective Services
Grinding, machining, coating or field balancing can be carried out immediately if required.

6. Verification
Final measurements confirm that required tolerances have been achieved.

7. Documentation
Digital reports provide complete documentation of the work performed.

Why Choose PR Rolls?

Unlike companies that only perform measurements, PR Rolls provides complete maintenance solutions.

Our customers benefit from:

Precision laser measurement
Machine alignment specialists
Roll and cylinder expertise
Engineering analysis
On-site machining
Grinding
Thermal spray coating
Field balancing
Complete shutdown support

This integrated approach allows customers to move directly from measurement to corrective action without involving multiple contractors.

Industries We Serve

PR Rolls provides measurement and alignment services for:

Paper mills
Board mills
Tissue mills
Pulp mills
Steel plants
Power plants
Marine industry
Other heavy process industries

Frequently Asked Questions

What is on-site measurement?
On-site measurement is the process of measuring machine geometry, alignment and dimensional accuracy directly at the customer's premises using precision laser equipment.

Why are laser measurements important?
Laser measurements provide highly accurate data that helps engineers identify misalignment, wear and dimensional deviations before they affect production.

What can PR Rolls measure?
PR Rolls measures rolls, cylinders, shafts, machine sections, foundations, rotating equipment and complete machine geometry.

Why should measurements be performed before maintenance?
Accurate measurements identify the actual condition of the equipment, ensuring that grinding, machining, balancing or coating is based on reliable engineering data.

Why should measurements be performed after maintenance?
Verification measurements confirm that the required tolerances have been achieved and provide documented evidence that the equipment is ready for operation.

Can measurement services be combined with other on-site services?
Yes. PR Rolls frequently combines measurement with grinding, machining, thermal spray coating and field balancing during the same maintenance shutdown.

Why Measurement Creates Better Maintenance

Accurate measurements are not the final objective—they are the starting point for better maintenance decisions.

By combining precision measurement, engineering analysis, laser alignment, machine geometry expertise and complete on-site maintenance services, PR Rolls helps customers improve equipment reliability, reduce lifecycle costs and maximise production performance.