Application.

Our Lipprite® product range expands the product range of polishing tools and compounds, wire or various abrasive bristle roller brushes.  Lipprite® roller brushes with lamellar abrasive fleeces are tools with a different efficiency and have different requirements for the metal surface, although they can also be used for cleaning.

Different combinations of grain types, grain sizes, number of flaps and roller dimensions result in different roll types. This enables us to meet the different requirements of our customers and offer them a personalised tool. Achievement of purity or roughness values before, for example, coating or plating process if rolling different metal grades. Or simply because a great functional decorative surface is needed, which is very convincing to look at, depending on the incidence of light. For example, for later use on visible surfaces in automobiles, large kitchen appliances or for lighting modules.

An open web construction surface and even assembly of the flaps on light HP tubes give the tube a satin finish that is completely even. During processing, new abrasive grains are constantly exposed on the brush surface.

Solutions.

Lipprite® permits homogeneous and constant work, with regular wear over the entire surface. The flap construction provides flexibility and adaptability to all types of profiles. The dimensional range of possibilities allow us to supply you with many options for technical applications: rollers up to 2.6 meters wide are used in the stainless steel industry, smaller rollers are used in the PCB or porcelain industry, and there are wheels for all types of manual and precision work.

Density

The number of flaps (density) influences directly the hardness of the product and its capacity to adapt to different shapes. The grade of abrasive non-woven is selected depending on the application and desired finish.

For certain applications Osborn has developed special treatments for Lipprite® that harden the product, increasing the abrasive action and extending service life.

Use

Lipprite® can be used on stationary, automatic or robotic machines, in both dry and wet operations. It is recommended for light deburring, satin finishing, cleaning and decorative surfaces. The recommended speed is 22-25 m/s, reducing to 18 m/s for metal working and 12 m/s for plastic.

Metallurgic Field Process Line
Carbon Steel
  • Continuous Annealing Line / Skin Pass Back Up Roll Polishing 
  • Continuous Galvanizing Line / Skin Pass Back Up Roll Polishing 
  • Continuous Coating Line
  • Finishing Line
Stainless Steel
  • Skin Pass Mill / Back Up Roll Polishing
  • Satinising and Finishing in Service Center
Aluminium
  • Cleaning and Finishing Line
Copper, Brass
  • Annealing and Pickling Line
  • Finishing Line

General Information.

Coverings and Material Specifications

Roughness values vary depending on diameter, pressure, cutting speed, feeding speed and density. Sheets and flat rolled metals with hard material have a lower roughness than with soft material.
Treatment with synthetic resin stiffens the Lipprite® Roller, improving performance and extending its suitability for a range of applications.

Silicon Carbide Abrasive (SIC)
S4 Medium MED Grit (100) 120
S6 Fine FN Grit 180 (240)
S7 Very Fine VFN Grit 280 (320)
S8 Super Fine SFN Grit 500 (600)
S9 Ultra Fine UFN Grit 800
S10 Micro Fine MFN Grit 1000 (1200)
Aluminum Oxide Abrasive Grain (Al2O3)
A2 coarse CRS Grit 80
A4 medium MED Grit (100) 120
A6 fine FN Grit 180 (240)
A7 very fine VFN Grit 280 (320)

The final roughness depends on the initial surface roughness before brushing. Below is a specific test result for each setup*:

Osborn Type Grade FEPA Norm Stainless Steel Copper/Brass Aluminium
Rz μm Ra μm Rz μm Ra μm Rz μm Ra μm
A2 Coarse Grit 80 4.5-6.5 0.6-0.66        
A4 Medium Grit 120 3.0-4.8 0.4-0.64 7.0-9.0 0.95-1.2 8.0-12.0 1.05-1.6
A6 Fine Grit 180 1.8-3.0 0.24-0.4 3.5-5.5 0.45-0.73 5.0-8.0 0.70-1.05
A7 Very Fine Grit 240/320 1.2-2.0 0.15-0.25 2.2-3.5 0.30-0.45 4.0-6.5 0.5-0.85
S4 Medium Grit 120 3.0-4.8 0.4-0.64 7.0-9.0 0.95-1.2 8.0-12.0 1.05-1.6
S6 Fine Grit 180 1.8-3.0 0.24-0.40 3.5-5.5 0.45-0.73 5.0-8.0 0.70-1.05
S7 Very Fine Grit 240/320 1.2-2.0 0.15-0.25 2.2-3.5 0.30-0.45 4.0-6.5 0.5-0.85
S8 Super Fine Grit 500 0.8-1.5 0.13-0.20 1.5-2.3 0.20-0.30 2.5-4.5 0.33-0-60
S9 Ultra Fine Grit 800 0.4-0.7 0.06-0.10 0.8-1.5 0.12-0.20 1.5-3.0 0.20-0.40

*Set-up: Dry - D105  - 15m/s - pressure about 1kg/cm

Technical Data and Characteristics

  • Standard roller width up to 2650 mm
  • Standard roller diameter up to 500 mm
  • Versions available with or without impregnation
  • Rollers are dynamically balanced in accordance with ISO 1940
  • Oversized rollers can be made per customer request
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