Selecting The Right Concrete Grinding Equipment and Tools

During the past few years, concrete grinding has advanced considerably and new technological innovations have made concrete grinding much more efficient. To achieve the results you desire, you must select the proper grinding machine and grinding bits that are suitable for your particular job. We will provide you with an overview on how to select the appropriate equipment for your needs.

Types Of Concrete Grinders

There are two different types of grinders currently available, floor models, and handheld models. Handheld grinders are lightweight and are used on walls, door seals, and other above ground areas. Since this type of grinder is handheld, you must control it manually in order to create a smooth surface, unlike floor models which are much heavier and require less manual control. The latest generation of handheld concrete grinders are fitted with type 28 saucer discs instead of type 27 flat discs and this allows the operator to exert more control over the job.

Concrete GrindingIn terms of size, floor grinders are naturally larger in size and also heavier than hand-held grinders and are normally used for resurfacing concrete floors. In comparison with the handheld units floor grinders are easier to control and can also cover larger areas in a relatively short span of time. These grinders also come with a variety of attachments making them suitable for many different kinds of concrete grinding jobs. They may be used to totally resurface a concrete floor or to remove a coating that was previously applied to the floor surface.

Types Of Grinder Attachments

The two head floor grinder attachments currently available on the market are actually a combination of six grinding stones or cutter heads. Each of these heads rotates in opposite directions giving the operator improved control over the grinding process. The standard grinding stones are normally suitable for removing concrete surface of some types of coatings, but if the coating is gummy or thick it may plug up the stones. Concrete grinders with diamond cutters are also available. Diamond cutter are most costly but they last much longer than standard stone grinders and they are capable of grinding at a much faster rate than standard, stone head grinders.

Another excellent available alternative are carbide concrete grinders. Carbide grinders are a better choice for heavy concrete coatings and they can perform with better efficiency on mastics, heavy paints, and gummy coatings.

If you require a high speed concrete floor grinder, the it is best for you to use large size diamond discs. They are perfectly designed for faster performance and are normally used for the purpose of removing painted traffic lines or for completely grinding concrete surface.

While grinding concrete, examine the condition of the concrete surface and select the right grinding tools and blades as explained above.

Potential Problems When Core Drilling With Diamond Core Bits And Their Solutions

Like every other machine tool, Diamond core bits for core drilling have some associated problems and here are a few major issues that operators should be concerned about when working with these core drilling machines.

Reasons The Core Is Not Drilling Properly

  • The hardness of the material is beyond the core drill’s application range.
  • A blunt diamond impregnation can prevent proper drilling and you can alleviate this problem by sharpening the abrasive material or the grinding stone.
  • The core might not drill properly if the speed is too high and this can be solved by reducing the speed.
  • Water flow that is too high can adversely affect drilling
  • Insufficient machine power is another major issue and in that case one is required to have a more powerful replacement.

Wearing Out Of The Diamond Segments

    • The insufficient flow of water often blunts the diamond segments and an operator must ensure that a diamond core bit always gets an ample supply of water.
    • Diamond segments may also become worn from high feed or contact pressure and operators are required to be careful about maintaining an optimum limit.
    • Excessive vibration also blunts the diamond cores and this is best prevented by properly tightening up the screws and applying the correct settings.
    • For abrasive drilling materials it is always a better choice to use harder core bits with suitable segment specifications.

Wearing Down Of The Core Bit Barrel

  • The core drilling systems are not always sufficiently anchored and it is always better to use threaded rods and dowels for proper anchoring and this can considerably reduce barrel wearing.
  • This can also be caused by lack of water flow
  • The core bit must be properly positioned on the motor chuck. Otherwise the barrel might suffer considerable damage.
  • The core bit barrel can become worn if the motor shaft is not turning smoothly and in a scenario like that it is important that it is replaced or repaired as soon as possible.

Apart from the wide number of issues that we have already mentioned above, the diamond core bits used for core drilling job can have several other problems and issues like loosening up or breaking down of the diamond segment, the core bit can get jammed inside the core, cracks appearing on the core bit barrel and also inward or outward bent segments. With proper knowledge of operation and proper maintenance all these issues can be solved and the machine can be operated without any kind of hiccup.

New Projects Updates And Company News

Wet weather makes it tough for September but MegaSaw still manages to look after clients and get the work done. Rain hail or shine, MegaSaw look after their clients’ needs.

Critical Confined Space Project

MegaSaw concurs another Confined Space project for one of its good clients. Our specially trained Confined Space operators had to cut and stitch drill a section of concrete wall and floor in a sewer pump station on the peninsula. All precautions had to be taken using a tripod and safety harnesses as well as poisonous gas detectors to monitor the air quality.

Warning to All Contractors

A MegaSaw Warning on Dirty Diesel Fuel…..A bad batch of diesel fuel has caused havoc with 1 MegaSaw van after fouling fuel lines and blocking injectors. The problem was diagnosed quickly and fixed straight away. Lucky MegaSaw has spare vehicles and machinery so their is no inconvenience to their clients.

Footy Tipping Competition

Footy Tipping…..Unfortunately for the Fellas, Steph the office girl won the footy tipping by 7 picks. Disgraceful guys.

Diamond Tools Conference

For the 5th year MegaSaw gets invited to the Husqvarna Diamond Tools Conference. Only top performers in our industry get an invite to this event and MegaSaw up there again.

Core Drilling Job

MegaSaw core drills holes into a big granite rock feature at The Narcropolous in Springvale. A good client is landscaping a new area for people to be put to rest in. I hope we didn’t disturb anyone?