A splitting knife determines how the log is divided after sawing.
BTD Technics offers several variants suited to your wood type, log diameter, cutting length and desired production speed.
All BTD splitting knives are engineered to require minimal force for optimal splitting performance.
This guide explains the differences and helps you select the right splitting knife for your work.
After cutting, the splitting cylinder pushes the log against the knife, which splits the wood into several pieces.
The more sections you create, the smaller the final logs become – and the more power is required.
A well-chosen knife therefore increases efficiency while reducing the splitting force needed for the same result.
At BTD, the knives are designed so that splitting forces are minimised by shear-mounted side blades, divided into up to four stages.
| Knife type | Number of pieces | Recommended use |
| 4-way | 4 pieces | All wood types, large stoves / wood gasifiers |
| 6-way (standard) | 6 pieces | All wood types, all-round use |
| 8-way | 8 pieces | All wood types, ideal for fireplaces |
| 12-way (ring knife) | 12 pieces | For small pieces of light wood, short cutting lengths (PROplus only) |
– Need more power and larger log pieces? → Choose a 4-way knife for large stoves or wood gasifiers.
– General use? → The standard 6-way knife is suitable for most wood types.
– Smaller splitting for faster drying? → Use an 8-way knife for quicker drying, ideal for fireplaces.
– Compact firewood required? → Choose the 12-way ring knife (available only on PROplus).
– PROcompact: manual knife adjustment with locking pin (standard).
– PROcompact-S: manual knife adjustment with locking pin (standard).
– PROplus: hydraulically adjustable knives, controlled from the cab.
Can I switch between knives?
Yes, all knives are interchangeable and available as options.
Changing is simple, but always do so with the hydraulic system switched off.
Is the 12-way ring knife suitable for all wood types?
Yes, but the 12-way ring knife is only intended for lighter wood types up to approx. 40 cm diameter.
See knife options in the brochure
Ask our product specialists for advice
Order additional splitting knives
Specifications of BTD firewood processors
Maintenance and safety
PROcompact-S firewood processor