A. Safety Instructions
I Safety
Tools for machining of wood and plastics frequently function at high cutting speeds and, depending on their diameters, in high speed ranges.
ZMM Ltd tools are designed to the latest tool technology and are manufactured of specially selected materials. Our quality tools ensure:
- Optimum protection against accident
- High performance
- Economy of use.
Our tools fulfill the safety regulations of EN 847-1:1997 and EN 847/2:2001.
Depending on the application, different tools are purposed for:
- Working with manual feed
- Working with mechanical feed
II Manual feed
Manual feed in the EN 847-1/2 refers to the holding and guiding of
- workpieces
- tools and portable machines
by hand, even if a feed device is used that can be swung or slid away but that is not interlocked with the tool drive, or even if a manually actuated tenoning attachment is used.
Tools for manual feed are designed to achieved certain safety aims:
- to reduce the injuries on contact with a moving tool
- to reduce the kick back of the workpiece.
ZMM Ltd tools for manual feed act in accordance with the applicable safety regulations defined for such equipment, in particular for the maximum projection of the cutting edge and the kickback standards. In accordance with EN 847-1/2 these tools are designated as “MAN”. They are marked with the recommended speed, e.g: n= 5 000-8 000 RPM.
Tools for manual feed can also be applied for mechanical feed.
III Mechanical feed
Mechanical feed in the EN 847-1/2 refers to a feed apparatus for the workpiece or the tool that is incorporated into the machine and with which the workpiece and the tool are mechanically guided or held during machining.
ZMM Ltd tools for mechanical feed fulfill the regulation defined for such equipment. In accordance with EN 847-1/2 these tools are designated as “MEC”. They are marked with the recommended speed, e.g.: n max = 12 000 RPM
This speed range does not give any indication for the optimal speed for the use of the tool, which in general is lower.
Tools for mechanical feed (MEC) are not permitted to be used for manual feed.
B. General Information and definitions
I Machine tools
A knife can only be used for woodworking, if it is built into a tool body. Therefore, the tool body is the holder of the tool knife. Depending on the purpose the tool is used on machines for cutting, planing, sawing or boring.
Depending on how the knives are attached onto the tool body, three diverse types on machines can be defined:
|