Sizing Chart/Chip Load Feed Rate

 

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	4mm	6mm	8mm	10mm	12mm
Aluminium	.051 - .084	.081-.133	.102-0.155	.139-.187	.160-.210	.193-.245
Acrylic	.042 - .071	.090-150	.194-.245	.229-.279	.266-.314	.295-370
Hardwood	.038 - .064	.102-.153	.220-.270	.310-370	.400-.477	.460-513
Soft Plywood	.056 - .077	.120-.180	.270-.320	.360-.420	.445-520	.500-560
MDF/Particle Board	.047 - .082	.140-210	320-396	.430-.500	.520-590	.613-660
High Pressure Laminate	.047 -.082	.140-210	.320-396	.430-.500	.520-590	.613-660
Phenolic	.56-.070	.136-.154	.269-.294	.362-.386	.444-480	.574-.620
Hard Plastic	.028-.055	.067-.121	.148-.221	.181-.240	.224-.285	.240-296
Soft Plastic	.049-.097	.086-.162	.168-.242	221-.278	.264-.315	.280-375
Solid Surface	.028--.054	.065-.116	.146-.222	.180-.246	.214-266	.243-.297