Chipper Knife
Chipper knives for disc and drum chippers used in wood chip and pulp preparation. The steel is heat treated for a tough body that stands up to knots and hard impact, while the edge keeps an even geometry for uniform chip size.
- Drawing: required for every order (PDF / DWG / sketch) — the drawing governs
- Material options: 6CrW2Si / 9CrSi alloy tool steel
- Hardness: HRC 57–62
- Edge angle: To chipper model
- Dimensions: Length, width, thickness to machine model
Send the drawing first — we quote and produce to it, not to a catalogue size.
Request a QuoteApplications
Disc and drum chippers; wood chip production for pulp, paper and biomass fuel.
Specifications
| Material options | 6CrW2Si / 9CrSi alloy tool steel |
| Hardness | HRC 57–62 |
| Edge angle | To chipper model |
| Dimensions | Length, width, thickness to machine model |
Common Options
| Item | Options |
|---|---|
| Steel | 6CrW2Si / 9CrSi |
| Edge angle | To chipper model |
| Size | To machine model or drawing |
| Service | Resharpening of used knives available |
Machines these blades are made for
Chipper knives take impact, not just abrasion, so the steel and the bolt pattern matter as much as the size. These are the drum and disc chipper builders our blades are commonly fitted to.
Brand names describe machine compatibility only — we are not affiliated with, or an authorised distributor of, these manufacturers. Send the model or a drawing and we confirm the fit before production.
Customisation — any size, hole pattern or edge angle
| Length | 300–1200 mm |
| Width | 100–250 mm |
| Thickness | 20–50 mm |
| Hole pattern | Countersunk or through-bolted, to your rotor |
| Edge | Single or double bevel, HRC 57–62 |
| Steel | 6CrW2Si / 9CrSi |
| Order size | 1 set or per piece; resharpening available |
Frequently asked questions
Disc chipper or drum chipper - how do I know which I need?
It follows the machine on your site: disc chippers take knives mounted on a rotating disc, drum chippers take longer knives on a drum. Send a photo of the knife in place or the machine model and we identify the type.
How many usable edges does a chipper knife have?
It depends on the knife design - many chipper knives are ground on more than one long edge so the knife can be rotated before regrinding. Tell us the model and we confirm the edge count and the regrind allowance.
What steel do you use?
Chipper knives need a tough body rather than maximum hardness, because knots, stones and frozen wood cause impact damage. The grade is chosen for that balance; if you are chipping clean softwood or recycled material with contaminants, tell us and the recommendation changes.
What is the lead time?
About 15-25 days after drawing confirmation for custom knives; some common sizes can ship from stock in about a week.
By machine brand: Bruks, Vecoplan & Pallmann · Morbark, Carthage & Precision Husky · All machine brands