The Dic Sander
The Disc Sanders in School look like the picture displayed here.
Disc Sanders are used to remove small amounts of material from straight edges or external curves on wood and some types of plastic.
Disc Sanders should never be thought of as finishing sanders as hand sanding will still be required after use.
It is important to identify where the start and stop buttons are located.
Always wear an Apron and goggles when using a Disc Sander and ensure that Long hair is tied back and any items of loose clothing have been removed or secured.
The full Risk Assessment for the Disc Sander is shown below:
1.083 WOOD-WORKING MACHINES:
SANDERS- BELT, BOBBIN, DISC
Applicable to: vertical and horizontal belt sanders; disc and combined machines; bobbin sanders
Process(es) covered: The use of bench or pedestal machines to finish wood components, for which only light pressure is required, principally on end grain.
HAZARDS
Trapping Fingers or material can become trapped between the belt and drive pulleys or between the sanding surface and a fence, or between the bobbin and the table.
Flying objects Workpieces can be thrown violently if not held correctly or if the machine starts unexpectedly. Torn belts or discs can be ejected violently.
User injury Human contact with moving or rotating parts can cause cuts or abrasions and particles from the sanding process can enter the eye. If the support table is not correctly set there is a high risk of the material being sanded being dragged into the gap between the table and the disc or belt.
Entanglement Long hair, dangling jewellery or loose clothing can become entangled with rotating parts, dragging the user onto them.
Dust See sheet 1.071 and specific comments overleaf.
RISK ASSESSMENT
Trapping Inadequate guards cause an increased risk.
Flying objects Workpieces are usually held in the hand, often against a fence or rest, allowing the pressure on the belt or disc to be released quickly. This risk is small provided that the rest correctly set.
User injury If guards are positioned to enclose those moving or rotating parts that are not being used, the risk is reduced but in some applications this is difficult. This risk must be reassessed for each application.
Entanglement Entanglement is likely to occur if rotating parts are exposed.
Dust Fine dust will be produced when sanding.
CONTROL MEASURES
To minimise the trapping risk, the drive mechanisms must be enclosed and fences must be set correctly. On a disc sanding machine the upward turning part of the sanding disc should be covered by a suitable quadrant guard. For sanding an angle edge, the table must be inclined downwards away from the sanding surface. The
position of the support table should be checked at regular intervals and the gap between the table and the disc or belt should be as small as possible, normally not more than 3 mm.
A belt must be fitted to rotate in the correct direction. If flying objects are to be avoided then users must be instructed in the level of pressure to apply to the workpiece. The setting of rests should be checked frequently to ensure that they are as close to the abrasive as possible.
Guards must be in place and eye protection must be worn when using any sander.
Long hair must be tied back; jewellery should be removed or covered and loose clothing covered by a secure apron or overall.
A suitable LEV system must be fitted and must always be used.
Disc Sanders are used to remove small amounts of material from straight edges or external curves on wood and some types of plastic.
Disc Sanders should never be thought of as finishing sanders as hand sanding will still be required after use.
It is important to identify where the start and stop buttons are located.
Always wear an Apron and goggles when using a Disc Sander and ensure that Long hair is tied back and any items of loose clothing have been removed or secured.
The full Risk Assessment for the Disc Sander is shown below:
1.083 WOOD-WORKING MACHINES:
SANDERS- BELT, BOBBIN, DISC
Applicable to: vertical and horizontal belt sanders; disc and combined machines; bobbin sanders
Process(es) covered: The use of bench or pedestal machines to finish wood components, for which only light pressure is required, principally on end grain.
HAZARDS
Trapping Fingers or material can become trapped between the belt and drive pulleys or between the sanding surface and a fence, or between the bobbin and the table.
Flying objects Workpieces can be thrown violently if not held correctly or if the machine starts unexpectedly. Torn belts or discs can be ejected violently.
User injury Human contact with moving or rotating parts can cause cuts or abrasions and particles from the sanding process can enter the eye. If the support table is not correctly set there is a high risk of the material being sanded being dragged into the gap between the table and the disc or belt.
Entanglement Long hair, dangling jewellery or loose clothing can become entangled with rotating parts, dragging the user onto them.
Dust See sheet 1.071 and specific comments overleaf.
RISK ASSESSMENT
Trapping Inadequate guards cause an increased risk.
Flying objects Workpieces are usually held in the hand, often against a fence or rest, allowing the pressure on the belt or disc to be released quickly. This risk is small provided that the rest correctly set.
User injury If guards are positioned to enclose those moving or rotating parts that are not being used, the risk is reduced but in some applications this is difficult. This risk must be reassessed for each application.
Entanglement Entanglement is likely to occur if rotating parts are exposed.
Dust Fine dust will be produced when sanding.
CONTROL MEASURES
To minimise the trapping risk, the drive mechanisms must be enclosed and fences must be set correctly. On a disc sanding machine the upward turning part of the sanding disc should be covered by a suitable quadrant guard. For sanding an angle edge, the table must be inclined downwards away from the sanding surface. The
position of the support table should be checked at regular intervals and the gap between the table and the disc or belt should be as small as possible, normally not more than 3 mm.
A belt must be fitted to rotate in the correct direction. If flying objects are to be avoided then users must be instructed in the level of pressure to apply to the workpiece. The setting of rests should be checked frequently to ensure that they are as close to the abrasive as possible.
Guards must be in place and eye protection must be worn when using any sander.
Long hair must be tied back; jewellery should be removed or covered and loose clothing covered by a secure apron or overall.
A suitable LEV system must be fitted and must always be used.