The available dimensions are shown below. Other designs and specifications can be produced on request according to your grinding requirements.
Our team will assist you in selecting the geometry, bond, grit size and concentration to define the solution best suited to your application.
Tuesday, 03 November 2026 18:56
| Type | Numero | Type liant | Shape N° | D | T | H | U | X | V | E | K |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3V9 | 001PR | Phenolic | 1 | 100 | 6 | 25 | 3 | 6 | 25 | ||
| 3V9 | 002PR | Phenolic | 1 | 100 | 6 | 25 | 4 | 6 | 35 | ||
| 3V9 | 003PR | Phenolic | 1 | 100 | 6 | 25 | 5 | 6 | 30 | ||
| 3V9 | 004PR | Phenolic | 1 | 100 | 6 | 25 | 2 | 6 | 35 | ||
| 3V9 | 005PR | Phenolic | 2 | 200 | 20 | 31.75 | 10 | 3 | 8 | 12 | 62 |
| 3V9 | 006PR | Phenolic | 2 | 200 | 20 | 31.75 | 5 | 4.5 | 45 | 12 | 62 |
| 3V9 | 007PR | Phenolic | 1 | 100 | 8 | 40 | 3 | 6 | 25 | ||
| 3V9 | 008PR | Phenolic | 1 | 100 | 6 | 10 | 2 | 6 | 35 | ||
| 3V9 | 009PR | Phenolic | 1 | 100 | 6 | 10 | 3 | 6 | 25 | ||
| 3V9 | 010PR | Phenolic | 1 | 100 | 6 | 10 | 4 | 6 | 35 | ||
| 3V9 | 011PR | Phenolic | 1 | 100 | 6 | 10 | 5 | 6 | 30 | ||
| 3V9 | 012PR | Phenolic | 2 | 200 | 20 | 31.75 | 14 | 3 | 6 | 12 | 62 |
| 3V9 | 013PR | Phenolic | 2 | 200 | 20 | 31.75 | 12 | 3 | 7 | 12 | 62 |
| 3V9 | 014PR | Phenolic | 2 | 200 | 20 | 31.75 | 16 | 3 | 5 | 12 | 62 |
| 3V9 | 015PR | Phenolic | 1 | 150 | 8 | 31.75 | 6 | 6 | 30 | ||
| 3V9 | 017PR | Phenolic | 1 | 100 | 6 | 10 | 4 | 6 | 20 | ||
| 3V9 | 018PR | Phenolic | 2 | 200 | 20 | 31.75 | 12 | 3 | 20 | 12 | 62 |
| 3V9 | 019PR | Phenolic | 1 | 100 | 6 | 20 | 2 | 6 | 35 | ||
| 3V9 | 020PR | Phenolic | 1 | 100 | 6 | 20 | 3 | 6 | 25 | ||
| 3V9 | 021PR | Phenolic | 1 | 100 | 6 | 20 | 4 | 6 | 35 | ||
| 3V9 | 022PR | Phenolic | 1 | 100 | 6 | 20 | 5 | 6 | 30 | ||
| 3V9 | 023PR | Phenolic | 2 | 200 | 20 | 31.75 | 16 | 3 | 10 | 12 | 62 |
| 3V9 | 024PR | Phenolic | 2 | 200 | 20 | 31.75 | 16 | 3 | 7 | 12 | 62 |
| 3V9 | 025PR | Phenolic | 2 | 200 | 20 | 31.75 | 16 | 3 | 25 | 12 | 62 |
| 3V9 | 026PR | Phenolic | 2 | 200 | 20 | 31.75 | 16 | 3 | 35 | 12 | 62 |
| 3V9 | 027PR | Phenolic | 1 | 80 | 6 | 10 | 3 | 6 | 45 | ||
| 3V9 | 028PR | Phenolic | 1 | 150 | 8 | 31.75 | 3 | 6 | 24 | ||
| 3V9 | 029PR | Phenolic | 1 | 80 | 6 | 25 | 4 | 6 | 45 | ||
| 3V9 | 030PR | Phenolic | 2 | 200 | 20 | 31.75 | 8 | 3 | 45 | 12 | 62 |
| 3V9 | 034PR | Phenolic | 2 | 200 | 20 | 31.75 | 10 | 3 | 35 | 12 | 62 |
| 3V9 | 035PR | Phenolic | 1 | 150 | 8 | 50 | 5 | 6 | 35 | ||
| 3V9 | 036PR | Phenolic | 1 | 100 | 10 | 20 | 6 | 6 | 60 | ||
| 3V9 | 037PR | Phenolic | 2 | 200 | 20 | 31.75 | 10 | 10 | 3 | 12 | 62 |
| 3V9 | 038PR | Phenolic | 1 | 150 | 8 | 31.75 | 5 | 6 | 35 | ||
| 3V9 | 039PR | Phenolic | 2 | 75 | 15 | 20 | 3 | 3 | 30 | 10 | 51 |
| 3V9 | 040PR | Phenolic | 1 | 100 | 6 | 25 | 3 | 6 | 10 | ||
| 3V9 | 041PR | Phenolic | 1 | 150 | 8 | 31.75 | 6 | 6 | 20 |
Diamond is used in grinding wheels for grinding non-ferrous, non-metallic and composite materials. (Knoop hardness: 8,000–9,000).
| SD | Used in our polyimide, hybrid and phenolic bonds. The phenolic bond is suitable for dry grinding applications. Available grit sizes: 1 to 35. |
| ASD | Its coating improves grain retention in the bond and heat dissipation, resulting in longer wheel life. Used in our phenolic bonds for wet grinding. Available grit sizes: 15 to 252. |
| ASD6 | Specially coated to improve grain retention in the bond for wet grinding applications. Used in our polyimide and hybrid bonds. Available grit sizes: 46 to 252. |
| DMD | Used in our metal bonds. Available grit sizes: 10 to 252. |
| ASDC | Specially coated for dry grinding applications. Available grit sizes: 46 to 252. |
| ASDK | Ideal for grinding difficult-to-grind materials such as ceramics and cermets. Used in our phenolic, polyimide and hybrid bonds. Available grit sizes: 46 to 181. |
Cubic boron nitride (CBN) is used in grinding wheels for hardened ferrous materials and superalloys. (Knoop hardness: 4,600).
| B | Used in our phenolic, polyimide and hybrid bonds. Available grit sizes: 6 to 10. |
| CBN | Its coating improves grain retention in the bond and heat dissipation in the contact zone. Used in our phenolic, polyimide and hybrid bonds. Available grit sizes: 15 to 252. |
| BM | Used in our metal bonds. Available grit sizes: 10 to 252. |
Approximate value, depending on the bond and workpiece material.
| Diamant | D7 | D15 | D25 | D46 | D76 | D126 | D252 | |
| D10 | D20 | D30 | D54 | D91 | D151 | - | - | |
| - | - | - | D64 | D107 | D181 | - | - | |
| N1 | N2 | N3 | N4 | N5 | N6 | N7 | N8 | |
| Ra (µm) | 0,025 | 0,06 | 0,12 | 0,25 | 0,5 | 1,0 | 1,6 | 3,2 |
| Rt (µm) | 0,5 | 0,5 | 1,0 | 2,0 | 4,0 | 8,0 | 12,5 | 32,0 |
| Rz (µm) | 0,18 | 0,38 | 0,75 | 1,6 | 3,2 | 6,3 | 10,0 | 16,0 |
| N1 | N2 | N3 | N4 | N5 | N6 | N7 | N8 | |
| CBN | - | B10 | B15 | B30 | B46 | B76 | B151 | B252 |
| - | B20 | - | B54 | B91 | B181 | B301 | - | |
| - | - | - | B64 | B107 | - | - | - |
All our grit sizes are designated according to the FEPA standard.
| DIAMANT (FEPA) | CBN (FEPA) | MICRON | US MESH |
| 1 | - | 1-2 μm | 14’000 |
| 3 | - | 2-4 μm | 8’000 |
| 5 | - | 4-6 μm | 6’000 |
| - | 6 | 4-8 μm | 3’000 |
| 7 | - | 6-8 μm | 2’500 |
| 10 | 10 | 6-12 μm | 1’800 |
| 15 | 15 | 10-20 μm | 1’200 |
| 20 | 20 | 15-25 μm | 1’000 |
| 25 | 25 | 20-30 μm | 800 |
| 30 | 30 | 22-36 μm | 700 |
| 35 | (40) | 30-40 μm | 600 |
| 46 | 46 | 38-45 μm | 325/400 |
| 54 | 54 | 45-53 μm | 270/325 |
| 64 | 64 | 53-63 μm | 230/270 |
| 76 | 76 | 63-75 μm | 200/230 |
| 91 | 91 | 75-90 μm | 170/200 |
| 107 | 107 | 90-106 μm | 140/170 |
| 126 | 126 | 106-125 μm | 120/140 |
| 151 | 151 | 125-150 μm | 100/120 |
| 181 | 181 | 150-180 μm | 80/100 |
| 252 | 252 | 212-250 μm | 60/70 |
| 301 | 301 | 250-300 μm | 50/60 |
This letter is always placed before the concentration designation and indicates the modification of the base bond.
| Letter | Grade |
| L | Soft |
| N | Medium |
| C | Hard (with diamond abrasive at concentration 100) |
| R | Hard (with CBN abrasive at concentration 100) |
| V | Very hard |
The same concentration values are used for both diamond and CBN abrasives and comply with international standards. The concentration indicates the amount of abrasive, expressed in carats per cm³.
(1 carat = 0.2 g)
| Concentration | CTS/CM3 |
| 25 | 1.1 |
| 50 | 2.2 |
| 75 | 3.3 |
| 100 | 4.4 |
| 125 | 5.5 |
| 150 | 6.6 |
| 175 | 7.7 |
| Low | Acceptable | Medium | Good | Excellent | |
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Used for grinding and regrinding in small to medium production runs, particularly where excellent surface finish is required. Dry grinding is possible with selected bonds.
| Bond | Diamond | CBN |
| B21 | For polishing (flutes, end faces). For micron grit sizes. |
For polishing (flutes, end faces). For micron grit sizes. |
| VC10 | Universal bond (end-face grinding). Dry grinding possible. |
Universal bond (end-face grinding). Dry grinding possible. |
| B16 | For surface and plunge grinding. |
For surface and plunge grinding. |
| B25 | For cut-off wheels. |
For cut-off wheels. |
| BC4 | Universal bond (flute grinding). Dry grinding possible. For micron grit sizes. |
Universal bond (flute grinding). Dry grinding possible. For micron grit sizes. |
| BC3 | Same as BC4, but for coarser grit sizes. |
Same as BC4, but for coarser grit sizes. |
| BC5 | Universal bond (gashing). Dry grinding possible. |
Universal bond (gashing). Dry grinding possible. |
| ADS | For polishing applications in the watch industry. |
- |
Cutting ability; 
Profile retention; 
Surface finish.
Used for medium to high-volume grinding applications with coolant, providing a good surface finish.
| Bond | Diamond | CBN |
| BP4 | Universal bond (flute grinding, gashing). |
Universal bond (flute grinding, gashing). |
| BP11 | Finish grinding. For micron grit sizes. |
Finish grinding. For micron grit sizes. |
| BP17 | Superfinish grinding. For micron grit sizes. |
- |
Cutting ability; Profile retention; Surface finish.
Resin-metal hybrid bond: used for high-volume production thanks to its high profile retention and cutting ability. The achievable surface finish is lower than with polyimide bonds.
| Bond | Diamond | CBN |
| BPM2A | For gashing and flute grinding of micro- and nano-tools. For micron grit. |
- |
| BPM3 | High stock removal grinding. Very free-cutting. |
High stock removal grinding. Very free-cutting. |
| BPM5 | High stock removal grinding (end-face grinding). |
High stock removal grinding (end-face grinding). |
| H6 PIRANHA |
High stock removal grinding (flute grinding, tool diameter Ø4 to 8 mm). |
High stock removal grinding (flute grinding, tool diameter Ø4 mm and above). |
Cutting ability; Profile retention; Surface finish.
Metal bond: used for high-volume production thanks to its high profile retention and heat resistance.
| Bond | Diamond | CBN |
| MNG1 | Roughing wheel for OD grinding (Rollomatic NP4, NP5, NP50). |
Roughing wheel for OD grinding (Rollomatic NP4, NP5, NP50). |
| MNG2 | Cup wheel for insert grinding. |
- |
| MNG4 | For higher stock removal than with the MNG5 bond. |
- |
| MNG5 | For dental tools (flute grinding). |
For form tools. |
| MNG8 | For form tools. For micron grit sizes. |
For form tools. For micron grit sizes. |
Cutting ability; Profile retention; Surface finish.
Metal-ceramic bond: used for high-volume production thanks to its cutting ability and heat resistance.
| Bond | Diamond | CBN |
| M1 SHARK |
High stock removal grinding (flute grinding, tool diameter Ø8 mm and above). |
- |
Cutting ability; Profile retention; Surface finish.
Precise preparation, including dressing and balancing, ensures the correct geometry of the grinding wheel mounted on its wheel arbor, the condition of its abrasive surface and its stability during operation. Inadequate preparation, on the other hand, can increase grinding forces, cause vibration or heat generation, and directly affect accuracy and the surface finish of the workpiece. Even a grinding wheel perfectly matched to the application cannot deliver its full performance without proper preparation.
With the ASA 300W, diamond and CBN grinding wheels are dressed and profiled with very high precision directly on the complete wheel pack. This preparation is carried out independently of the production machine, which therefore remains available for grinding.
To ensure suitable dressing for different grinding wheel specifications, we recommend having at least two types of dressing wheels available.
For grit sizes from 10 to 35, the recommended specification is 80C 500 I7 V62A.
For grit sizes from 46 to 252, the recommended specification is 10C 120 KL7V.
The following dressing wheels are recommended by ASA and kept in stock, available individually.
| Grit size | Specification | Manufacturer |
| 1 to 10 | SC9-1000-J12 RE DM | Atlantic GmbH |
| 15 to 25 | 80C 500 I7 V62A | Stella Keramik GmbH |
| 30 to 46 | 10C 320 KL7V | Comet Schleiftechnik GmbH |
| 54 to 76 | 10C 220 KL7V | Comet Schleiftechnik GmbH |
| 91 to 107 | 10C 120 KL7V | Comet Schleiftechnik GmbH |
| 126 to 252 | 10C 60 KL7V | Comet Schleiftechnik GmbH |
Large diameter or thin abrasive layer = reduce the feed rate.
Small diameter or thick abrasive layer = increase the feed rate.
Example: For a grinding wheel diameter of 150 mm and an abrasive layer thickness of 3 mm, the feed rate is approximately 0.5 m/min.
After dressing, the surface of the abrasive layer may remain dull. To achieve optimum cutting ability, we recommend manually opening the grinding wheel with a sharpening stick. The stick should be wetted with oil and applied with the grinding wheel rotating in its normal working direction and at its operating speed.
| Type | Description | Dimensions |
| STICK ASA-N°1 | Grit sizes from 46 to 252 | 13 x 25 x 102 mm |
| STICK ASA-N°2 | Grit sizes from 1 to 40 | 13 x 25 x 102 mm |
The number (drawing number) following the grinding wheel shape defines all its dimensions. Each dimension is preceded by a letter that identifies a specific dimension of the grinding wheel.
| D | Diameter |
| T | Overall thickness |
| H | Bore |
| U | Thickness of the section |
| X | Depth of the section |
| W | Rim width |
| V | Face angle |
| A | Angle n°1 |
| B | Angle n°2 |
| R | Radius |
| T1 | Reduced hub thickness |
| U1 | Reduced thickness of the section |
| E | Thickness at bore |
| K | Inside recess diameter |
| S | Angle of body |
| d | Offset diameter from body |
| J | Hub diameter |
| Dx | Diameter of the second layer |
| Ux | Thickness of layer 2 |
| Uz | Thickness of layer 3 |
| Wx | Rim width layer 2 |
| Wz | Rim width layer 3 |
| A1 | Clearance angle n°1 |
| A2 | Clearance angle n°2 |
| Rx | Radius 2 |
| Rz | Radius 3 |
| Kx | Second inside recess diameter |
| CL | Keyway width |
| BC | Bolt circle |
Body material |
The two letters following the drawing number define the type of wheel body. The first letter indicates the material, while the second specifies the type of bond.
| AR | Aluminium / phenolic bond |
| MR | Pressed aluminium (cup wheel) / phenolic bond |
| PR | Pressed aluminium / phenolic bond |
| SR | Steel / phenolic bond |
| AP | Aluminium / polyimide and hybrid bond |
| CP | Pressed copper / polyimide and hybrid bond |
| XP | Aluminium and Pressed Copper / polyimide and hybrid bond |
| AM | Aluminium / metal bond |
| SM | Steel / metal bond |
| SH | Steel / metal-vitrified bond |
This modification, engraved after the drawing number, allows us to adjust certain dimensions (e.g. the angle) and profile the grinding wheel according to the customer's requirements without creating a new drawing number.
| Gravage | Modification |
| V=23 |  |
| V=113 |  |
| V=23/2 |  |
| V=113/2 |  |
| A=23/4 B=60 |  |
| A1=4 A2=2 |  |
| A=5 |  |
| B=5 |  |
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ASA, Action Super Abrasive SA
Prés-Bersot 11
2087 Cornaux, Switzerland
Phone +41 32 757 37 85
This is where we develop and manufacture our diamond and CBN grinding wheels, as well as our machines.
Our grinding wheels are manufactured in our own workshops, from the preparation of the compositions and forming to pressing, machining, dressing and quality control.
Our machines are developed, assembled and tested in Cornaux, with many components manufactured directly by ASA.
For more than 30 years, we have been cultivating industrial expertise in Switzerland, built on complete control of our processes, precision and quality.
