Solid Carbide Router Bits Speeds And Feeds
Posted by John Rennie on
Solid Carbide Router Bits Speeds And Feeds Chart & Information
The recommended chip load & feed rate data provided below is a recommended starting point and may not accommodate all circumstances.
The following chip loads in the chart are applicable for single flute, 2 flute and 3 flute solid carbide router bits that are either up cut OR down cut. These recommended chip loads are NOT applicable to compression bits
As a rough rule of thumb we usually advise the depth of cut as 1 x cutting diameter. However, in some circumstances a smaller or larger depth of cut may be optimal.
Always start out at the lower feed rate and work your way up from there until optimal cutting conditions and speed is acquired
We would recommend running at 18,000 RPM for most single, 2 flute and 3 flutes up OR down cut router bits
To work out your feed rate –
Chip load (mm) x RPM x number of flutes = mm per minute feed rate
Example –
6mm x 22mm 2 flute up cut router bit – cutting MDF
0.32mm (Chip load) x 18,000 (RPM) x 2 (number of flutes) = 11,520 mm per minute feed rate
Solid Carbide Router Bit Chip Load Chart And Information
Material |
Chip Load (mm) |
|||||||||
Size |
2mm |
3.175mm (1/8") |
4mm |
6mm |
6.35mm (1/4") |
8mm |
9.35mm (3/8") |
10mm |
12mm |
12.7mm (1/2") |
Aluminium |
.051 - .084 |
.076 - 0.127 |
.081-.133 |
.102-0.155 |
.127 - .175 |
.139-.187 |
.152 - .203 |
.160-.210 |
.193-.245 |
.203 - .254 |
Acrylic |
.042 - .071 |
.076 - 0.127 |
.090-150 |
.194-.245 |
.203 - .254 |
.229-.279 |
.254 - .305 |
.266-.314 |
.295-370 |
.305 - .381 |
Hardwood |
.038 - .064 |
.076 - 0.127 |
.102-.153 |
.220-.270 |
.229 - .279 |
.310-370 |
.381 - .457 |
.400-.477 |
.460-513 |
.483 - .534 |
Soft Plywood |
.056 - .077 |
.102 - .153 |
.120-180 |
.270-.320 |
.279 - .330 |
.360-.420 |
.432 - .508 |
.445-520 |
.500-560 |
.533 - .584 |
MDF / Particle Board |
.047 - .082 |
.102 - .178 |
.140-210 |
.320-396 |
.330 - .406 |
.430-.500 |
.508 - .584 |
.520-590 |
.613-660 |
.635 - .686 |
High Pressure Laminate |
.039 - .065 |
.076 - 0.127 |
.102-.163 |
.219-.294 |
.229 - .305 |
.311-.381 |
.381 - .457 |
.410-490 |
.546-.595 |
.584 - .635 |
Phenolic |
.056 - .070 |
.102 - 0.127 |
.136-.154 |
.269-.294 |
.279 - .305 |
.362-.386 |
.432 - .457 |
.444-480 |
.574-.620 |
.610 - .660 |
Hard Plastic |
.028 - .055 |
.051 - .102 |
.067-.121 |
.148-.221 |
.152 - .229 |
.181-.240 |
.203 - .254 |
.224-.285 |
.240-296 |
.254 - .305 |
Soft Plastic |
.049 - .097 |
.076 - .152 |
.086-.162 |
.168-.242 |
.178 - .254 |
.221-.278 |
.254 - .305 |
.264-.315 |
.280-375 |
.305 - .406 |
Solid Surface |
.028 - .054 |
.051 - .102 |
.065-.116 |
.146-.222 |
.152 - .229 |
.180-.246 |
.203 - .254 |
.214-266 |
.243-.297 |
.254 - .305 |
Good afternoon, I am trying to set up a CNC router and while I can find chip loading for solid carbide bits I cannot find the chip loading for Compression bits, could you please advise, I am using3,4,5 and 8 mm compression bits on MDF and plywood.
Many thanks