FR 543 Aluminium Oxide Resin Fiber Disc

Good

The FR 543 is an aluminium oxide fiber disc on vulcanised fiber backing with semi-open coat, used for deburring and surface finishing on sheet metal and wood furniture components. Semi-open coat is the right construction for mixed-material applications — it resists the loading that closed coat discs develop on wood resins and soft metal substrates, extending the working life of each disc across a varied production schedule.

Key Specifications

Dimension 102 × 16 mm (4" × 5/8") | 115 × 22.23 mm (4.5" × 7/8") | 125 × 22.23 mm (5" × 7/8") | 180 × 22.23 mm (7" × 7/8") | 230 × 22.23 mm (9" × 7/8")

Backing Material Vulcanised fiber

Type of Grain Aluminium Oxide

Type of Coating Semi-open Coat

Grit Ranges

100

120

Brand: CUMI

Information Material:

Product Catalogue

Additional Details

Type of Usage Machine Sanding

Bond Type Resin

Grid Range Extra Coarse to Medium

Shelf Life 2 Years from the Date of Manufacture

Product Information

Features

- Aluminium oxide grain on 0.8mm/0.6mm vulcanised fiber backing with semi-open coat

- Semi-open coat resists loading on wood furniture substrates and soft metal

- extends disc life on varied production runs

- Jumbo coated for consistent grain coverage across the disc face

Benefits

- Semi-open coat actively resists loading on wood resins and soft alloys

- fewer disc changes on mixed sheet metal and furniture production lines

- Vulcanised fiber backing provides the rigidity for edge deburring on sheet metal without flex-induced chatter

- Consistent grain distribution across the disc face delivers uniform scratch patterns on furniture components before finishing

Advantages

- Semi-open coat specified because loading failure is the dominant problem when one disc runs across both wood and metal substrates in a production shift

- closed coat is the wrong construction for this application

Product Uses