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POLINOX® fibre-backing discs, 4 1/2 x 3/4", 280 Grit

Product information "POLINOX® fibre-backing discs, 4 1/2 x 3/4", 280 Grit"

Technical information

4 1/2 x 3/4", 280 Grit

Dia. External4 1/2 in
Width3/4 in
Drive typeAngle grinder
Grit280
Max. RPM5300
Pack qty5

POLINOX® grinding discs are made of non-woven polyamide abrasive, into which abrasive grain is integrated. The non-woven abrasive flaps are attached to a fiberglass backer, for face-down finishing work. Densely stacked flaps make the disc durable. The tool is designed for working on large surfaces with variable speed angle grinders.

Special features

  • Conforms to contours due to high flexibility.
  • Cool grinding and low thermal load on the workpiece.
  • The open structure and high flexibility of the non-woven material prevents loading.

Applications

  • Cleaning
  • Deburring
  • Step-by-step fine grinding
  • Roughening
  • Structuring (matt finishing, brush matting and satin finishing)
  • Surface work

Materials that can be worked

  • Stainless steel (INOX)
  • Steel materials with a hardness > 54 HRC
  • Steels up to 370 HV (< 38 HRC)
  • Thermoplastics
  • Titanium
  • Titanium alloys
  • Zinc
  • Aluminum
  • Brass
  • Bronze
  • Cast steel
  • Cobalt-based alloys
  • Copper
  • Fibre-reinforced thermosetting plastics (GRP, CRP)
  • Hardened, heat-treated steels over 370 HV (38 HRC)
  • Nickel-based alloys (e.g. Inconell and Hastelloy)

Recommendations for use

  • For the best performance, use with a recommended peripheral speed of 2,000-4,000 SFPM. This provides an ideal compromise between stock removal rate, surface quality, thermal load on the workpiece and flap wheel/cross buff wear.

Safety

  • The maximum permitted peripheral speed is 6,300 SFPM.
  • For safety reasons, the maximum permitted rotational speed indicated must never be exceeded.
Pack Qty: 5

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