As no two projects are the same - so sometimes getting the right speed is tough - Contact our team anytime on 07 to make your TOUGH JOBS EASY! Ask about our concrete grinders for sale.
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In every concrete floor project, there are many applications that todays' contractors come across. Be it removal of glues, paints or coatings through to the rapid removal of concrete and stripping back of epoxies or line markings (to name a few).
The Schwamborn Floor Grinding System offers a wide range of diamond tooling and scarifier attachments for most professional grinding operations allowing you to achieve maximum productivity and the perfect finish every time.
Why the Easy Tool Exchange System forFloor Grinders?
- Saves time in changing diamonds
- Gives greater flexibility with diamonds
- Saves time in preparation and removal
- Integrated air channel provides dust flow around the diamond and allows the diamond to cool giving a longer life
Diamond Selection for my machine -
Productivity, speed and the finish are all dependent on the configuration the diamonds are set up on, under your machine. Generally, on the Base of the Schwamborn Grinders - there is an opportunity for 2 different configurations - ½ or a Full plate.
Metal Bond Diamonds, is the term suggesting that diamonds are fixed in a metal compound. These diamonds are used for coarse to medium grinding applications from a 16 to a 150 grit finish.
The Grit - is the term for the size of the diamonds. The fewer segments the more aggressive. The more segments the less aggressive and in turn the smoother the finish. Grit refers to the finishing qualities of the diamond.
Grinding with the Schwamborn Floor grinder the most common cut is with a 20/30 or 40/60 grit Knock on diamond grinding shoe.
Coarser or lower the grit - the sharper and faster the cut will be. Finer grits will create a smooth surface and slow down the productivity but will work in the finishing or polishing process. Usually, 60-80 grit shoes are used in the process of polishing with 100-150 being a final cut prior to resin backed polishing pads and the adaptor plate.
Diamond Grit - held in by Diamond Bond
Diamond Grit - Grinding Patterns
Diamond Glazing
Depending on the floor conditions, diamond grinding shoes may have poor grinding performance or pattern. The diamond starts glazing. By choosing another diamond, grit or bond, change diamond turning direction or add water to the surface to help improve the grinding speed and rectify the glazing.
Diamond Consumption
There are clues when grinding to tell if you are wearing through the diamond too fast. Take a look at the edges of the diamond grinding segment - as a sign. If there are long sharp edges - change to a harder bond diamond.
Floor Grinding & Preparation ? Tips & Tricks for yourDiamond Grinder
When it comes to floor grinding and preparation there are 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 move 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 too 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
Resin Bond Diamonds, are diamonds fixed in resin compound. Used for medium to fine grinding applications from a 50 - grit finish. Resin bond diamonds are the professional diamonds for Concrete Floor Polishing, and run through the grits from 50 grit, step by step through to .
The wear rates of Resin bond diamond pads varies from project to project. Most floors are ground with a Metal Bond Diamond (Grit up to 60/80 or 80/100) prior to starting on the Resin bond polishing process.
Hybrid Diamond Polishing Pads, is a mixture of a metal and a resin bond diamond. Used after metal bond diamonds the Hybrid pads are a transition tool for quick scratch removal from the floor. Proven, the Hybrid pads give high grinding performance and can be used in wet or dry applications.
Are you interested in learning more about Diamond Grinding Shoes Wholesale? Contact us today to secure an expert consultation!
PCD Diamonds are the term for Polycrystalline diamonds. Designed for a high speed, fast, aggressive removal of glues, paints, coatings or epoxies - thicker than around 3mm. Each project stands on its own so it's best to discuss your specific concrete grinding disc requirements with the All Preparation Equipment team on 07 .
*All Images are Copyright of All Preparation Equipment.
The two most common grinding problems are often caused by the incorrect bond for the surface being ground.
Glazing
This is the most common diamond segment problem, often caused by a bond that is too hard.
As a diamond segment wears down, the bond wears, exposing more diamond that continue cutting.
If the bond does not wear back, then eventually there is no diamond exposed, so the segment will slow down and stop grinding.
The cutting surface of the segment will feel smooth.
This is known as glazing or polishing.
See table below for tips on how to rectify.
Short Segment Life
Generally caused by using a bond which is too soft for the material being cut. It usually occurs when grinding more abrasive materials such as green concrete. Sometimes concrete looks cured but is not fully.
Use a harder bond for the application.
Increasing the number of shoes reduces the weight per shoe, and can reduce wear. Or reduce the pressure on the grinder.
When wet grinding , ensure correct amount of water or coolant is used (too much can be just as bad as too little).
Operating RPM may be too low or too high (if adjustable)
Common Problems and remedies:
Problem
Probable Causes
Solutions
Grinding too slow
Too much contact.
Cups - try a cup wheel with less segments.
Shoes - Change from double segment to single segment, or reduce number of shoes.
Bond too hard for material.
Use a softer bond
Segment glazed up.
Dress with abrasive material until diamond becomes exposed again (see more below)
Overheating.
Wet concrete (without causing puddles) to cool.
Or use cutting lubricants.
Glazing
Too high RPM for the selected grinding shoe.
Reduce RPM speed or less friction and heat.
Mismatched aggregate and bonds (bond too hard for material).
Change to a softer bond which will wear down, exposing more diamonds.
Not enough diamonds to cope with given condition.
Increase diamond quantity by adding more shoes or switching to double segmented shoes.
Material too hard.
Dress your tool on some soft concrete or with an abrasive wheel to expose diamonds.
Overheating.
Saturate concrete (without water puddling) to cool segments.
Or use cutting lubricants or clean builders sand.
Too much coolant when grinding wet.
Reduce amount of coolant.
Segments knocked off tool
Floor areas 'above grade' (raised above the surface level).
Hand grind surface to level.
Spot grind if area is less than 10mm high.
Deep scratches
Wrong grit.
Select a finer grit or take more time when grinding.
Concrete can be softer in one area than another.
Go back a step and use coarser grit.
Discolouration of floor
An adhesive may have discoloured the matrix.
Unfortunately unfixable.
Short segment life
Bond is too soft for the material being ground
Select a harder bond for the application
Increase the number of shoes.
Insufficient dust extraction
Disclaimer: the information on this website is provided in good faith and believed to be reliable and accurate at this time. However, the information is provided on the basis that the reader will be solely responsible for assessing the information and its veracity and usefulness. UDT shall in no way be liable, in negligence or howsoever, for any loss sustained or incurred by anyone relying on the information, even if such information is or turns out to be wrong, incomplete, out-of-date or misleading.
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