How much splitting force is required for a firewood processor?
The amount of splitting force required to process wood depends on several factors, including wood type, log diameter, splitting length and the design of the splitting knife and machine.
Factors that influence the required splitting force
Wood type
- Softwood, such as pine or spruce: generally requires less splitting force than dense hardwood.
- Hardwood, such as oak or beech: generally requires more force, especially with larger diameters or knotty timber.
- Large or heavily knotted logs: may require considerably more force depending on diameter, wood structure and splitting length.
Log diameter and splitting length
- Larger log diameters generally require more splitting force.
- Longer splitting lengths can also increase the force required.
- Knotty or irregular timber may place additional demands on the splitting process.
Splitting force is not determined by tonnage alone
The tonnage figure is important, but it does not tell the whole story. The efficiency of the complete splitting system also depends on how the wood is positioned and how the available force is transferred through the splitting knife.
Splitting knife design
- Stepwise splitting knives: can distribute the splitting force progressively through the wood.
- Shear-positioned splitting knives: can help use the available force more efficiently.
- Grain-following splitting knives: can reduce the force required by working more effectively with the grain structure of the wood.
The BTD splitting system is designed so that the available force is used efficiently throughout the splitting process.
Why machine design matters
- An efficient splitting knife design can reduce unnecessary resistance and wear.
- A stable clamping system helps keep the log correctly positioned during sawing and splitting.
- A well-designed pressing table helps prevent the wood from shifting during the splitting cycle.
BTD splitting force by model
- PROcompact: approximately 13–15 tons.
- PROcompact-S: approximately 13–15 tons.
- PROplus: approximately 16–20 tons.
The appropriate machine therefore depends not only on the required splitting force, but also on log diameter, wood type, production capacity and the overall design of the processing system.
Related links
How do splitting knives work and what are the options?
How much power (HP) is required for an attachment firewood processor?
What is the difference between the BTD PROcompact, PROcompact-S and PROplus?