3M™ Metal Sanding Discs
The 3M™ Cubitron™ II range revolutionises industrial abrasives with its precision-shaped triangular ceramic grain, which self-fractures to maintain sharpness and dissipate heat, achieving cuts up to twice as fast and durability that is two to three times greater than conventional abrasives, with less user effort and optimised energy efficiency. This technology reduces material build-up and the risk of deformation, adapting to tools such as angle grinders and orbital sanders.
Which is the right abrasive disc?
Cubitron™ II Fibre Disc 982C
- Optimised for intensive grinding in carbon steel, it features a rigid vulcanised fibre backing and reinforced resin bond for high resistance to breakage under heavy loads.
- Ceramic grains in grits from 36+ to 80+, diameters from 4 to 7 inches, thickness of 1/8 inch, and maximum speed of 13,300 RPM.
- Offers up to twice the sustained cutting power, double the service life and cooling.
Cubitron™ II Fibre Disc 987C
- Specialised in stainless steels and resistant alloys, it incorporates self-fracturing grains for precision in contours and adaptable fibre backing.
- Available in grits from 36+ to 80+, diameters from 4.5 to 7 inches, and RPMs up to 13,300.
- Provides 30% more material removal, superior thermal control to prevent contamination, and durability in demanding applications.
Cubitron™ II Roloc Disc 786C
- With Roloc quick-change system for efficiency in dynamic environments, focused on weld removal and deburring on ferrous metals.
- Precision grits from 36+ to 80+, diameters from 2 to 5 inches, fibre backing and RPMs up to 18,000.
- Achieve twice the cutting speed, 50% longer service life, and lower operating pressure to reduce fatigue.
Cubitron™ II Flutter Disc 967A
- Ideal for flat and curved surfaces in mild steel, with poly-cotton flaps that continuously supply fresh abrasive..
- Triangular grains in grits from 36 to 80, diameters from 4 to 7 inches, type T29 for a 15° angle and maximum RPM of 13,300.
- Cuts 30% faster, lasts twice as long as standard ceramics, and resists gouges in fine finishes.
Xtract™ Cubitron™ II Net Disc 710W
- For sanding with superior dust extraction, use open-web backing with ceramic grits to capture up to 95% of particles.
- Grits from 36 to 220, diameters from 5 to 6 inches, multi-hole pattern, 3 mil film backing and RPM up to 12,000.
- Removes material twice as fast, lasts six times longer, and promotes safe environments in composites and metals.
Cubitron™ II Hookit™ Clean Sanding Disc 737U
- Designed for automotive repairs with hook-and-loop fastening and multi-hole pattern for efficient drainage.
- Grits ranging from 80 to 320, diameters from 3 to 6 inches, flexible C-weight paper backing, and 12,000 RPM.
- Cuts 30% faster, lasts 30% longer than traditional ceramics, and is perfect for heat-sensitive surfaces without leaving marks.
Cubitron™ II Hookit™ Film Disc 775L
- With water-resistant backing for wet/dry applications, designed for removing stock from wood and metals.
- Grits from 36 to 400, diameters from 5 to 8 inches, hookit fastening with tab for easy alignment and RPM up to 12,500.
- Offers twice the sustained cutting power, flexibility around contours and tear resistance in prolonged applications.
Similarities and Differences in 3M™ Metal Sanding Discs
| PROPERTY | SIMILARITIES | DIFFERENCES |
|---|---|---|
| Grain Technology | All use precision triangular ceramic grains for self-fracturing, fast cutting (up to 2x) and extended service life (2-6x vs. conventional). | – 982C/987C/786C: Heavy grinding fracture. – 967A: Flaps for curved surfaces. – 710W: Dust net. – 737U/775L: Fine grit for delicate sanding. |
| Support and Unity | Strong resin bond and durable backing against wear and tear on most surfaces. | – 982C/987C/786C: Rigid fibre for high pressure. durable backing against wear and tear on most surfaces. – 967A: Poly-cotton flaps. – 710W: Mesh with film. – 737U: Flexible paper. – 775L: Waterproof film. |
| Grit Ranges | Medium grits (36+ to 80+) for general removal on all. | – 982C/987C/786C/967A: Coarse (36+-80) for metals. – 710W: Wide range (36-220) multi-purpose. – 737U: Fine (80-320) automotive. – 775L: Extended (36-400) wet/dry. |
| Maximum speed (RPM) | Up to 13,300 RPM in most cases, suitable for angle grinders. | – 786C: Up to 18,000 for quick changes. – 710W/737U/775L: 12,000-12,500 with emphasis on low heat and dust. |
| Main Applications | Grinding welds, removing stock and preparing surfaces on ferrous metals. | – 982C: Heavy carbon steel. – 987C: Stainless steel. – 786C: Fast deburring. – 967A: Contours and blending. – 710W: Powder composites. – 737U: Automotive sanding. – 775L: Wet wood/metals. |
| Unique Advantages | Less pressure and fatigue; efficient cooling for everyone. | – 786C: Roloc for quick swaps. – 967A: Fewer gouges on flaps. – 710W: 95% dust extraction. – 737U: Hookit for easy changes. – 775L: Water resistant. |
Applications 3M™ Metal Sanding Discs
These applications range from rust removal to coating preparation, prioritising sustainability and cost reduction through higher disc performance in medium to large industries.
- Weld Grinding in Heavy Metallurgy.
- Chamfering and Deburring in Sensitive Alloys.
- Dynamic Deburring in Continuous Production.
- Polishing and Contouring on Irregular Surfaces.
- Dust-Controlled Sanding on Composites.
- Automotive Repairs and Fine Sanding.
- Smoothing in Wet and Dry Applications.
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