1. Different core working performance
Magnesite abrasive blocks
- Made of magnesium oxychloride bonded silicon carbide, no diamond grit. It is a transitional grinding medium.
- Moderate cutting power to eliminate deep rough scratches left by metal bond diamond frankfurt;
- Low unit cost for small workshops with intermittent production;
- Soft grinding surface avoids deep over-cutting on soft marble.
(Magenesite Bond Fickert Abrasive)
Diamond frankfurt (metal / resin bond)
- Embedded with diamond particles, divided into two categories:
- Metal bond diamond frankfurt: Heavy stock removal for slab leveling, removing gang saw marks and uneven surfaces, far stronger cutting ability than magnesite blocks;
- Resin bond diamond frankfurt: Fine grinding to build mirror gloss, able to produce high transparent shine that magnesite blocks cannot achieve.
2. Irreplaceable unique functions of magnesite blocks
- Cost buffer for low-end production Magnesite blocks have extremely low purchase price, which helps small factories cut upfront costs for transitional grinding. Using diamond frankfurt for the transition stage will greatly raise overall processing costs.
- Gentle scratch transition Silicon carbide in magnesite softens coarse metal grinding lines mildly. If you skip magnesite and directly switch from metal diamond to fine resin diamond, deep rough scratches will be hard to erase, increasing finished slab reject rate.
- Lower risk of burning light marble Magnesite generates milder friction heat during grinding, less likely to leave yellow burnt marks on pale marble compared to continuous heavy grinding with diamond segments.
(magnesite bond frankurt abrasive grinding blocks)
3. Scenarios where diamond frankfurt can partially reduce magnesite usage
For large 24-hour continuous stone factories: You can upgrade to higher grit metal diamond frankfurt (#180/#200) to minimize the number of magnesite steps, but you still cannot cancel magnesite blocks entirely if you pursue flawless uniform slab surface.
4. Standard complete polishing sequence (proves they are complementary instead of replaceable)
Metal bond diamond frankfurt (rough leveling) → Magnesite abrasive block (transitional scratch smoothing) → Resin bond diamond frankfurt (mirror fine polishing) → Oxalic acid frankfurt (final brightening)