Many bore-mounted cutters carry the marking MAN or MEC. It is not a catalogue code but safety information: it tells you on which kind of machine the cutter may be mounted. You can even see the difference with the naked eye: on MAN cutters the knives sit almost flush with the body, while on MEC cutters the knives project well beyond the body. Below we explain why this matters and how to choose correctly.
1. What MAN and MEC mean
The marking comes from the European standard EN 847-1 (tools for woodworking – safety requirements):
- MAN – manual feed. The workpiece is pushed by hand. This is the spindle moulder (vertical spindle milling machine) found in most workshops.
- MEC – mechanical feed. The workpiece is driven by rollers or chains and the operator's hand never gets near the tool. This applies to 4-sided moulders, profiling lines and the spindle moulder with a mechanical power feeder fitted.
2. MAN cutters – knives almost flush with the body
On a MAN cutter the body is round and the knives (tips) project only slightly beyond the body. The body acts as a limiter: the cutter cannot suddenly "bite" a thick chip.
- Limited cutting-edge projection: according to EN 847-1, on round-body cutters the edge projects at most about 3 mm beyond the body, and where there is a limiter (counter-knife) at most 1.1 mm beyond it.
- Thin chip → much lower risk of kickback (the workpiece thrown back) and of the hand being pulled towards the tool.
- In case of accidental contact, the injury is far less severe than with a cutter with protruding knives.
- Passes are smaller: deep profiles are machined in several passes.
3. MEC cutters – knives projecting beyond the body
On a MEC cutter the knives project well beyond the body and the chip gullets are large. This lets the cutter take a thick chip and work at high feed and high productivity.
- Large chip, high feed – ideal for series production on 4-sided moulders.
- Deep profiles in a single pass – panelling, profiled beams, flooring.
- No chip limitation – that is why it is mounted on machines with mechanical feed, where the hand never gets near the tool.
4. Quick comparison
| MAN | MEC | |
|---|---|---|
| Feed type | manual | mechanical (built-in or fitted power feeder) |
| Typical machines | spindle moulder (vertical spindle) | 4-sided moulders, profiling lines, spindle moulder with power feeder |
| Knives vs body | almost flush with the body | well beyond the body |
| Chip thickness | limited | unlimited, large chip |
| Kickback risk | low | high if fed by hand |
| Productivity | medium, several passes | high, profile in one pass |
| On a machine with mechanical feed | ✔ possible, within the speed range | ✔ yes |
| On a machine with manual feed | ✔ yes | ✘ never |
5. How to find the right cutter on SolGrat
Each product page shows the field Feed type: MAN or MEC. A few examples:
- MAN – for the spindle moulder: for example the concave half-round cutter R4–R60.
- MEC – for 4-sided moulders: the round-profile panelling set 14.03.15UR, the chamfered panelling set 14.03.9, and the profiled-beam sets SG-14G01 and SG-14G02.
6. Safety rules for both types
- Clean the cutters regularly – resin build-up overheats and ruins the cutting edge. Damage from this cause is not covered by the warranty.
- Respect the speed marked on the cutter – neither above the maximum nor far below the minimum.
- Mount the cutters in the order shown in the technical drawing and check the spindle nut.
- Work with the guards fitted, goggles, dust mask and ear protection.
- Resharpening only at a specialist service, to keep the profile and the correct edge projection.
Frequently asked questions
Can I use a MAN cutter on a 4-sided moulder?
As a rule yes, if the bore and speed match. It will, however, work with smaller passes and lower productivity than a MEC cutter.
Can I use a MEC cutter on a spindle moulder if I fit a power feeder?
Yes, as long as the power feeder is fitted and drives the workpiece, and the hand does not get near the tool. For hand feeding, after removing the feeder, mount MAN cutters again.
How can I tell which feed type my old cutter has?
Look for the MAN or MEC marking engraved on the body. If there is no marking and the knives visibly project from the body, treat the cutter as MEC and do not use it with manual feed.
💬 Do you work on a spindle moulder or a 4-sided moulder? Tell us which profile you want to make and we will recommend the right cutter, MAN or MEC.