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


Share this post



← Older Post Newer Post →


  • 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

    Stuart Hill on

Leave a comment