Flap drums

Flap Drum, 4" x 4, 3/4" Keyed Arbor, 150 Grit, Aluminum oxide

EDP:
45784

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Technical information
Flap Drum, 4" x 4, 3/4" Keyed Arbor, 150 Grit, Aluminum oxide

Item number product.detail.hint.sku
44783150
Abrasive
Aluminum oxide A
Dia. external
4 Inch
Dia. external
100 mm
Dia. hole
3/4 Inch
Dia. hole
19 mm
EDP no.
45784
Grit size
150
Max. RPM
6100 RPM
RPM, optimum
3800 RPM
Width
4 Inch
Width
100 mm
Packaging unit
1 piece
Description

Designed for universal work on medium-sized and large metal surfaces, e.g. fine grinding work on large radii in container, kitchen, and appliance construction, and achieving uniform finishes (grinding patterns) on large surfaces and contours in manual applications. Designed for all conventional keyway systems.

Advantages
  • Conforms to contours due to high flexibility.
  • Consistently high stock removal rate throughout the entire service life as new, aggressive abrasive is constantly exposed.
Recommendations for use
  • Flap wheel wear and the thermal load on the workpiece are reduced by decreasing the contact pressure and peripheral speed, and by adding grinding oil.
  • Stock removal rate should be increased by using a coarser grit, not by increasing the contact pressure. This avoids unnecessary flap wheel wear and prevents the thermal load of the workpiece.
  • Increasing the speed results in a slightly finer surface quality. An increase in contact pressure results in a slightly coarser surface. The softer the workpiece material, the coarser the resulting surface (when using the same grit size).
  • For the best performance, use with a recommended peripheral speed of 3,000-6,000 SFPM. This provides an ideal compromise between stock removal rate, surface quality, thermal load on the workpiece and tool wear.
  • Use the appropriate grinding oil for the material to significantly increase the service life and the abrasive performance of the discs.
  • For the best results, use a power tool with 1,000–1,500 watts.
Ordering notes
  • The hole 3/4" center hole diameter with 4 keyways fits all conventional drum grinders.
Safety notes
  • For safety reasons, the maximum permitted rotational speed indicated must never be exceeded.
  • The contact pressure has to be reduced significantly when the optimum rotational speed is exceeded.
  • The maximum permitted peripheral speed is 6,300 SFPM.
Workpiece materials
Aluminum
Annealed cast iron
Brass
Cast steel
Copper
Grey/nodular cast iron (GG/GJL, GGG/GJS)
Hardened, heat-treated steels over 370 HV (38 HRC)
Steel materials with a hardness > 54 HRC
Steels up to 370 HV (< 38 HRC)
Applications
Deburring
Leveling
Step-by-step fine grinding
Structuring (matt finishing, brush matting and satin finishing)
Surface work
Work on weld seams
Compatible power tools
Drum grinders
PFERDVALUE
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