Segments Printing Industry

Printing Industry

Printing Industry Services & Solutions

Printing cylinder repair, brush plating and precision surface restoration

Printing equipment depends on accurate cylinder geometry and high-quality functional surfaces.

Scratches, dents, scoring, corrosion, local wear or dimensional deviations on a printing cylinder can affect production even when the rest of the component remains in good condition.

PR Rolls provides specialised maintenance and surface restoration services for printing industry equipment, with particular expertise in brush plating – also known as selective electroplating – for localised repair of printing cylinders and other precision components.

Depending on the application, our capabilities include:

  • Brush plating and selective electroplating
  • On-site printing cylinder repair
  • Localised surface restoration
  • Dimensional restoration
  • Precision grinding and finishing
  • Industrial coatings
  • Roll and cylinder refurbishment
  • Shaft and journal repair
  • Bearing area restoration
  • On-site machining
  • Measurement
  • Field balancing
  • Workshop maintenance and dynamic balancing

The objective is simple:

Repair the damaged area instead of automatically replacing or extensively remanufacturing the complete component.

 

Maintenance Challenges in the Printing Industry

Small surface defects can create significant production problems

Printing machinery places demanding requirements on cylinder geometry, dimensional accuracy and surface condition.

Unlike many heavy industrial applications, the problem does not always need to involve extensive wear.

A relatively small local defect on a precision cylinder can be enough to affect its function.

Typical problems can include:

  • Scratches
  • Dents and impressions
  • Scoring
  • Surface damage
  • Corrosion and pitting
  • Local coating damage
  • Uneven wear
  • Dimensional deviations
  • Worn journals
  • Bearing seat wear
  • Surface finish deterioration
  • Vibration and imbalance

The correct maintenance method depends on the location, depth and extent of the damage as well as the required final geometry and surface.

Inspect → Measure → Repair → Finish → Verify

 

Brush Plating for the Printing Industry

Localised repair of precision printing cylinders

Brush plating is particularly well suited to the printing industry because many cylinder problems are localised.

A scratch, dent, low area, corrosion pit or other surface defect may affect only a small part of an otherwise serviceable cylinder.

Replacing, removing or completely recoating the cylinder because of one damaged area can therefore involve considerably more work than the defect itself requires.

Brush plating provides another approach.

The process deposits metal selectively onto the affected area using portable electrochemical equipment.

Unlike conventional tank electroplating, the complete cylinder does not need to be immersed in a plating bath.

This makes the technology particularly suitable for localised repair.

Depending on the cylinder, material and damage, the process can be used to restore areas affected by:

  • Scratches
  • Dents
  • Scoring
  • Local wear
  • Corrosion
  • Pitting
  • Low areas
  • Local coating damage
  • Dimensional deviations
  • Manufacturing or machining errors

The fundamental principle is:

Repair only what needs to be repaired.

 

On-Site Printing Cylinder Repair

Restore the cylinder directly in the printing press where appropriate

One of the major advantages of brush plating is its portability.

For suitable applications, the damaged area can be repaired while the cylinder remains installed in the printing machine.

This can reduce the need for:

  • Cylinder removal
  • Extensive machine dismantling
  • Heavy lifting
  • Transportation to an external workshop
  • Reinstallation
  • Additional alignment work

PR Rolls brings the repair technology to the equipment.

Depending on the damage, an on-site cylinder repair can combine:

Inspection → Damage preparation → Brush plating → Local finishing → Measurement → Verification

Where machining or grinding is required before or after plating, PR Rolls can evaluate the complete restoration process rather than treating plating as an isolated operation.

 

Printing Cylinder Surface Damage

Scratches, dents and local defects do not always require cylinder replacement

Foreign objects, mechanical contact, corrosion and normal operation can create local defects on printing cylinders.

The correct repair strategy depends on how deeply the surface has been affected.

A superficial defect may require polishing or finishing.

A deeper defect may require local material restoration before the final surface can be recreated.

Where technically appropriate, brush plating allows metal to be deposited specifically in the damaged area.

The restored area can then be finished toward the required cylinder geometry and surface condition.

This makes selective plating particularly relevant where:

The cylinder is valuable + The damage is localised + Precision is critical + Removing the cylinder would create additional work

 

Impression, Blanket & Other Printing Cylinders

Application-specific repair for precision cylinder surfaces

Selective plating has established applications within printing machinery where cylinder surfaces must maintain accurate dimensions and surface condition.

Depending on the press design, material, cylinder construction and defect, suitable components for evaluation can include:

  • Impression cylinders
  • Blanket cylinders
  • Plate cylinders
  • Printing rolls
  • Other precision press cylinders
  • Cylinder journals
  • Bearing areas
  • Other localised metallic surfaces

Different cylinder positions have different functional requirements.

The repair method, plating material, deposit thickness and final finishing must therefore be selected according to the specific cylinder and its function.

PR Rolls evaluates the component and damage before determining the appropriate restoration process.

 

Dimensional Restoration

Rebuild worn or damaged areas to the required geometry

Brush plating is not limited to corrosion protection.

It can also be used as a dimensional restoration technology.

This is particularly useful when only one area of a component has become undersized, worn or damaged.

Suitable applications can include:

  • Cylinder surfaces
  • Shafts
  • Journals
  • Bearing seats
  • Bores
  • Seal areas
  • Other precision metallic interfaces

Material is deposited only where required and the restored area can then be finished to the required dimensions.

This provides an alternative to replacing an otherwise serviceable component because of localised dimensional loss.

 

Shaft, Journal & Bearing Area Repair

Restore precision mechanical interfaces

Printing machinery contains more than functional printing surfaces.

Roll and cylinder journals, shafts and bearing areas must also maintain accurate dimensions for reliable operation.

Wear, fretting, corrosion or mechanical damage can affect these areas over time.

PR Rolls can evaluate suitable repairs using:

  • Brush plating
  • Machining
  • Grinding
  • Dimensional restoration
  • Precision finishing

Where only a limited area is affected, localised restoration can preserve the original shaft or cylinder instead of replacing the complete component.

 

Grinding & Precision Surface Finishing

Geometry and surface finish must work together

A repaired printing cylinder needs more than restored material.

The final geometry and surface condition must also meet the requirements of the application.

PR Rolls combines surface engineering with grinding and precision finishing capabilities.

Depending on the component, a restoration process can include:

Measurement → Grinding → Surface restoration → Brush plating / coating → Precision finishing → Verification

Grinding can be used to correct geometry, remove damaged material or prepare a component for further restoration.

Precision finishing then creates the required final functional surface.

The objective is not simply to make the repair visually smooth.

The objective is to restore the geometry and functional surface required by the printing application.

 

Industrial Coatings for Printing Rolls & Cylinders

Engineer the surface according to its function

Some printing industry components require more than localised repair.

Where a larger functional surface has deteriorated, an industrial coating may provide a more appropriate restoration method.

PR Rolls provides functional coating solutions for suitable rolls, cylinders, shafts and other metallic components.

Depending on the application, the required surface properties can include:

  • Wear resistance
  • Corrosion resistance
  • Controlled friction
  • Grip and traction
  • Release
  • Controlled surface roughness
  • Surface durability

The coating should always be selected according to the component's actual function and operating environment.

Component + Existing surface + Wear mechanism + Required surface function = Surface solution

 

Roll & Cylinder Refurbishment

Restore the complete component when local repair is not enough

Not every cylinder problem is localised.

If a roll or cylinder has more extensive mechanical or surface deterioration, workshop refurbishment may provide the better maintenance route.

Depending on the component, PR Rolls can combine:

  • Incoming inspection
  • Measurement
  • Mechanical maintenance
  • Machining
  • Grinding
  • Surface restoration
  • Industrial coating
  • Precision finishing
  • Dynamic balancing
  • Final inspection

This allows the complete component to be evaluated rather than simply recoating an existing surface.

Inspect → Repair → Restore geometry → Engineer surface → Balance → Verify

 

On-Site or Workshop Repair?

Select the service location according to the component and damage

Printing equipment can contain both large installed cylinders and smaller removable components.

PR Rolls can evaluate whether the repair is better performed directly at the printing facility or at the workshop.

On-Site Service
Particularly relevant for large or difficult-to-remove cylinders and localised repairs where dismantling would create unnecessary work.

Workshop Refurbishment
Suitable where the component can be removed and requires more extensive mechanical maintenance, grinding, coating or dynamic balancing.

The correct question is therefore not simply “Can this component be repaired?”

It is:

What needs to be restored, and where can the work be performed most effectively?

 

Measurement & Verification

Precision repair requires controlled dimensions

Printing cylinders and rotating equipment can require tight dimensional and geometric control.

For this reason, measurement is an important part of the restoration process.

Depending on the application, PR Rolls can use measurement to:

  • Assess existing damage
  • Determine dimensional deviation
  • Establish repair requirements
  • Control material restoration
  • Verify cylinder geometry
  • Support machining and grinding
  • Confirm the finished repair

Measurement should therefore be considered part of the repair process – not simply a final inspection.

 

Field Balancing & Dynamic Balancing

Restore rotational stability after maintenance

Wear, repair, coating or other changes to a rotating component can affect its mass distribution.

Where required, PR Rolls can provide field balancing for suitable installed rotating equipment.

Suitable removable rolls and rotating components can also be dynamically balanced as part of workshop refurbishment.

Balancing may be relevant following:

  • Mechanical repair
  • Grinding
  • Coating
  • Refurbishment
  • Component modification
  • Changes in rotating mass
  • Detected vibration or imbalance

Balancing should always be considered together with the mechanical condition, geometry, bearings and alignment of the rotating component.

 

Repair, Refurbish or Replace?

Local damage does not automatically mean the end of the cylinder

A precision printing cylinder can represent considerable manufacturing value.

If only a small area has been damaged, replacing the complete cylinder may not be the first technical option.

PR Rolls evaluates the actual component condition.

Repair
Localised scratches, dents, corrosion, wear or dimensional deviations can be evaluated for brush plating or other local repair methods.

Refurbish
More extensive wear can require grinding, mechanical maintenance, coating, finishing and balancing.

Replace
Where damage is too extensive or the component is no longer technically suitable for restoration, replacement may be the appropriate lifecycle decision.

The principle is:

Repair what can be repaired. Refurbish what can be restored. Replace when necessary.

 

Typical Printing Industry Applications

PR Rolls' maintenance and surface engineering capabilities can be applied to suitable printing industry components such as:

  • Printing cylinders
  • Impression cylinders
  • Blanket cylinders
  • Plate cylinders
  • Printing rolls
  • Guide rolls
  • Shafts
  • Journals
  • Bearing seats
  • Bearing housings
  • Cylindrical surfaces
  • Bores
  • Other precision metallic machine components

The appropriate service depends on the component, material, damage and required final surface.

 

Why PR Rolls for Printing Industry Maintenance?

Printing equipment combines two areas where PR Rolls has extensive specialist capabilities:

Precision rotating components + Functional industrial surfaces

PR Rolls combines:

  • Brush plating
  • Selective electroplating
  • On-site cylinder repair
  • Grinding
  • Precision finishing
  • Industrial coatings
  • Dimensional restoration
  • Machining
  • Roll and cylinder refurbishment
  • Measurement
  • Field balancing
  • Dynamic balancing

Brush plating is particularly valuable because it allows the maintenance strategy to focus on the damaged area rather than automatically treating or replacing the complete cylinder.

For a localised cylinder defect, the repair philosophy becomes:

Locate the damage → Restore the material → Recreate the geometry → Finish the surface → Verify the result

 

Frequently Asked Questions About Printing Industry Services

 

Why is brush plating particularly useful for the printing industry?
Printing cylinders can become unusable because of relatively small scratches, dents, corrosion pits or dimensional defects. Brush plating allows metal to be deposited selectively onto the damaged area instead of treating the complete cylinder.

What is brush plating?
Brush plating, also known as selective electroplating, is a portable electrochemical process used to deposit metal onto selected areas of a metallic component. Unlike conventional tank plating, the complete component does not need to be immersed in a plating bath.

Can a damaged printing cylinder be repaired on-site?
In suitable applications, yes. The portability of brush plating allows localised cylinder repairs to be performed directly at the customer's site and, depending on accessibility and repair requirements, potentially with the cylinder remaining installed.

What types of printing cylinder damage can be repaired?
Suitable localised defects can include scratches, dents, scoring, wear, corrosion, pitting and dimensional deviations. The component and damage must be assessed before the appropriate repair method is selected.

Can impression and blanket cylinders be repaired with brush plating?
Selective plating is an established repair technology for localised damage on suitable impression, blanket and other printing cylinders. The correct repair process depends on cylinder construction, material, damage and required final surface.

Can brush plating restore dimensions?
Yes. Selective plating can deposit material onto worn or undersized areas and can therefore be used for dimensional restoration in suitable applications.

Can journals and bearing seats also be repaired?
Yes. Brush plating is particularly useful for localised dimensional restoration of suitable shafts, journals, bearing seats and other precision mechanical interfaces.

Does PR Rolls only provide brush plating for printing equipment?
No. Depending on the problem, PR Rolls can also provide machining, grinding, industrial coating, precision finishing, measurement, balancing and complete roll or cylinder refurbishment.

Should a damaged printing cylinder always be repaired?
No. The correct solution depends on the extent of the damage, cylinder construction, required tolerances and remaining component condition. Local repair, complete refurbishment and replacement should all be considered according to the actual condition.

 

Precision Repair for Printing Cylinders & Rotating Equipment

A small defect should not automatically require a large repair.

For printing cylinders, rolls and other precision components, PR Rolls combines localised brush plating with machining, grinding, surface engineering and precision finishing.

This makes it possible to select the restoration method according to the actual damage:

Scratch → Repair the scratch

Local wear → Restore the worn area

Dimensional deviation → Restore the dimension

Extensive surface deterioration → Refurbish the complete surface

Component no longer suitable for restoration → Replace

The result is a condition-based approach to printing equipment maintenance:

Inspect → Repair → Restore → Finish → Verify → Return to production