Questions / Answers

cutting-off-abrasives-safety

Yes, provided they have been handled and stored correctly by the operator, provided marking are visible.

No, worn-down thin wheels cannot be mounted on a smaller machine. It could be dangerous because the speed of rotation of the machine would not be adapted to the one of the disc.

Yes but only if the blue pictogram indicated that the wheel must be used wet is marked on the wheel. In this case, turn off the water supply and spin out excess water from the wheel before turning off the machine.

Warning: never use wet a wheel marked with the pictogram « Do not use for wet cutting ». The wheel is not designed for this, it could be dammaged or burst causing severe injuries.

1*Do not use for wet cutting

2*Must be used wet.

If the wheel is used on a fixed speed machine, we recommend it is changed when worn to half its original diameter.

Warning: never use a larger wheel on a smaller machine to save money. It is dangerous. Indeed the speed of rotation in RPM marked on the wheel would be lower than the one indicated on the machine. The wheel could break causing severe injuries.

Every machines fitted with discs with a diameter higher than 55mm have to be used with a guard.

There are two types of guard: one for cutting-off and one recommended for grinding. Choose the right guard (click here for more details).

By using the wrong guard, or no guard at all, you are not protecting yourself from debris, especially in case of breakage, and you may be severly injured.

Only the machines fitted with discs with a diameter equal or smaller than 55mm can be used without a guard.

This concerns only flat or depressed centre bonded wheels for cutting-off with an angle grinder or a petrol saw.

The expiry date is marked on the wheel, and often stamped on the metal centre. It is presented this way: V../YY or V../YYYY. For instance: V01/18 or V01/2018 means that the wheel should not be used after the first quater of the year 2018. Past this date, the wheel could be damaged and may break, causing severe injuries.

Destroy the wheels which are expired, to make sure no one could use them and get hurt.

Yes, FEPA recommends that a guard which covers both sides of the wheel is used for cutting-off. On the other side, use an open guard to grind.

Recommended for cutting-off Recommended for grinding

Warning: Never use a machine without a guard, as you would not be protected from debris, especially in case of the wheel breaks and you would be severly injured.

We do not recommend this. High deceleration (and acceleration) can cause the wheel to burst.