Tips on diamond tooling and getting the best out of your diamonds.

Concrete floor grinding

4 Apr 2018

Tips on diamond tooling and getting the best out of your diamonds.

Diamond tooling plays a large part in getting the most out of your concrete floor grinding machine. Soft concrete floors, Hard concrete floors, Burnished concrete floors, broom finished or Steel trowelled floors, rain damaged concrete, soft flaky or damaged concrete; Each requires a different diamond to get through it the fastest, most economically and leave the best surface finish.

This doesn’t mean you need to have every type of diamond on hand, but it does often mean it pays to have 3 – 4 sets of diamonds to meet the required projects you come across onsite. All Preparation Equipment has had years of experience working with floor layers, and contractors doing concrete floor preparation, grinding and levelling projects as well as spending time with manufactures including Schwamborn from Germany to create, develop and piece together diamonds with the best shape, grit and bond matrix for each and every floor.

When it comes to floor grinding and preparation there is a few things to consider to ensure you get the right fit diamond for your project.

We’ve put our heads together from our experience and with some seasoned professionals to provide a basic overview on HOW TO CHOOSE THE RIGHT DIAMOND GRINDING SHOE OR WHEEL below;

Floor Surface Type Solution on what diamonds to use ,
1 Unknown floor conditions Start with a medium soft (HC) or soft diamond bond (VSF).
2 Soft, open and porous floors Start with a hard bond (SC) or medium hard diamond bond (GC).
3 Very hard and trowelled floors Start with a medium soft, soft or very soft diamond bond     (HC or VSF).
4 Low grinding performance   = Diamond glazing
  • Choose a softer diamond bond.
  • Increase grinding pressure.
  • Change tool speed.
  • Splash some water on your floor – to get a faster grinding speed and continue to open the bond on the diamonds – a little water goes a long way!
5 Quick diamond consumption
  • Choose a harder diamond bond.
  • Reduce grinding pressure.
  • Mount instead 3, 6 diamonds per carrier
6 Machines moves hard or switches off
  • Reduce grinding pressure, remove saddle weight.
  • Reduce tool speed
  • Choose a different tool
  • Mount a full diamond set.
7 Coating removal Work with 50% overlap to get a better result
8 Scarifying & shot blasting Floor grinding achieves a more uniform surface compared to shot blasting and scarifying.
9 Hard Floors:Grinding becomes non productive
  • Use a soft bond diamond
  • Use a higher grit diamond
  • Vary the tool speed
  • Vary the weight
  • Use sand or concrete dust
  • Use wet grinding
10 Soft Floors:Diamond tools wearing to fast
  • Use a harder bond diamond
  • Reduce the weight of the machine
  • Increase the tool speed – Rotation
  • Increase the forward movement
  • Use a full set of diamonds on the base of your grinder
11 Bolts and metal object in the floor Any objects in the floor must be cut or removed to prevent damage on machine and tools.
12 Cracks in the floors Use cement based filler, for holes and close joints