What is disc cutoff?
Cutting wheels (aka cut-off discs) are an abrasive tool used for fast cutting of materials like metal, concrete, and stone. Their portability allows the operator to move around freely with it and maneuver their tools from different angles to easily cut a material.
When should I replace my disc cut?
Always replace a cutting disc if it shows any signs of damage. This includes, but is not limited to visible cracks and chips or any signs of bending or twists to the wheel. Cut off wheels should be replaced when they hit their expiration date. This can be found imprinted on the metal center of the disc.
How do I choose a disc to cut?
Selecting the right Cutting and Grinding Disc for your operation
- Material. There is an abrasive wheel that ensured optimal grinding results for all operations.
- Hardness of Material. The second consideration would be the hardness of material.
- Shape. There are mainly 4 kind of shapes of abrasive wheels.
- Safety.
Do cut off discs expire?
Cut-off wheels and grinding wheels should not be used past their expiration dates, and that’s if they’ve been properly stored and handled. Mishandling or storing discs in certain conditions might lead discs to be discarded earlier.
What are cut off wheels?
As the name would suggest, cut-off wheels are made to cut things off. Be it a stubborn bolt, nail, separating a weld that is no longer needed, or simply needs to be separated and redone. In short, cut-off wheels are used to change the shape of metal. Either to cut it off, or to cut out portions of it.
What is a Type 27 cut off wheel?
A Type 27 Cut Off Wheel is often referred to as a depressed center wheel. The mounting hardware is in the depressed center, allowing for flush cutting. The Type 27 Cut Off Wheel must be used with an appropriate guard and a depressed center back flange. The center hub protects the user from cutting too deeply.
Why do cut-off wheels break?
Attempting to cut work beyond the capacity of the wheel or the machine may cause wheel breakage. Loose wheel spindle, excessive end play, loose or vibrating machine parts such as the work table and the work holder may cause the wheel to bend in the cut and break.
Is it OK to use a cut-off wheel as a grinder wheel?
NEVER attach a Type 1 straight or cut-off wheel to this angle grinder. Use for any other purpose is not recommended and creates a hazard, which will result in serious injury.
How many rpms does a grinder turn?
Generally speaking, anything that spins in a circle, in terms of speed, is measured in RPM or revolutions per minute. Angle grinders usually spin at speeds anywhere from 2,000 to 13,000 revolutions per minute.
Can I use a stone cutting disc on metal?
Stone cutting discs will actually cut metal but they will tend to tear up and fall apart as they chop their way through and due to this the flying debris can cause a great deal of harm and damage to yourself, others around you and also to any nearby objects.
Why do cutting discs break?
Loose wheel spindle, excessive end play, loose or vibrating machine parts such as the work table and the work holder may cause the wheel to bend in the cut and break.
Why do grinding discs explode?
Grinding operations generate tremendous amounts of heat. This heat causes expansion and if foreign materials are embedded in the stone then the differential rate of thermal expansion between the two materials can cause a wheel to shatter.