How much power (hp) is required for an add-on firewood processor?

The required vehicle power for an attachment firewood processor depends on several factors, including the hydraulic capacity of the carrier vehicle, the splitting force, log dimensions and the required production capacity.

For professional attachment firewood processors, the hydraulic system is generally more important than the nominal engine power alone. A carrier vehicle must be able to provide sufficient hydraulic oil flow and working pressure, while also offering enough lifting capacity and stability for safe operation.

What determines the required vehicle power?

Hydraulic oil flow: determines how quickly the machine can perform its functions.
Working pressure: determines the available hydraulic force.
Machine weight: the carrier vehicle must safely support the firewood processor and the timber being handled.
Log diameter and wood type: larger, harder or more irregular logs require more force and can reduce production speed.
Required production capacity: higher output requires sufficient and stable hydraulic performance.

Hydraulic requirements of BTD attachment firewood processors

BTD attachment firewood processors use the hydraulic system of the carrier vehicle:

PROcompact: minimum hydraulic oil flow of 35 l/min.
PROcompact-S: minimum hydraulic oil flow of 55 l/min.
PROplus: minimum hydraulic oil flow of 55 l/min.

Depending on the model and application, the required working pressure is approximately 210–250 bar. The actual suitability of a carrier vehicle therefore cannot be assessed on engine horsepower alone.

Mobile applications

When an attachment firewood processor is used at different locations, the complete combination of machine and carrier vehicle must be suitable for safe and efficient operation.

In addition to hydraulic performance, lifting capacity, vehicle weight, stability and the mechanical attachment are important. For more information, see Which vehicles are suitable for a BTD attachment firewood processor?

Power versus production capacity

More engine power does not automatically result in a higher production capacity. The available hydraulic oil flow, working pressure and efficiency of the complete work process are more important.

BTD machines are designed to operate within defined hydraulic limits. This helps ensure consistent machine performance and protects the hydraulic system against excessive pressure or flow.

Other factors that influence production capacity

Loading and splitting area: an efficient work layout reduces unnecessary movements and waiting time.
Log length and diameter: larger logs generally require more force and handling time.
Cutting length: the selected firewood length influences the number of processing cycles.
Wood type: softwood and hardwood can behave differently during sawing and splitting.
Carrier vehicle: hydraulic capacity, lifting capacity and stability influence the practical performance of the complete combination.

Softwood and hardwood

Softwood: species such as pine or spruce generally require less splitting force.
Hardwood: species such as oak or beech generally require more force, particularly with larger diameters or knotty timber.

Which BTD machine fits your carrier vehicle?

BTD Technics offers three attachment firewood processor models:

PROcompact: compact model for carrier vehicles with a minimum hydraulic oil flow of 35 l/min.
PROcompact-S: higher-capacity compact model with a minimum hydraulic oil flow of 55 l/min.
PROplus: designed for higher capacities, larger log diameters and heavier professional applications, with a minimum hydraulic oil flow of 55 l/min.

The best choice depends on the complete combination of hydraulic capacity, lifting capacity, stability, log dimensions and required output.

Also see Which attachment firewood processor do I need?

How much vehicle power is needed for an attachment firewood processor?