1
Confirm the hours before the machine
Establish the contracted or highly probable annual hours first, in writing where possible, including the term. A harvester financed over five years against a twelve-month contract is a five-year liability supported by a one-year asset. If the hours cannot be underwritten, the correct decision is usually to hire, subcontract, or buy used at a capital level the business can absorb if the work stops.
2
Let the silviculture choose the system
Stem size, terrain, product specification and extraction distance decide cut-to-length versus full-tree long before any brand comparison starts. Small, uniform plantation stems on moderate ground favour cut-to-length; large or irregular stems, or a landing-based processing model, favour full-tree. Choosing the system after choosing the machine is how contractors end up with equipment that works against their own coupes.
3
Balance the fleet to the bottleneck
Production is set by the slowest element in the chain, not the fastest. An extra 10% of harvester capacity is worthless if the forwarder cannot clear the landing, and a fast processor idles if the skidders cannot feed it. Size each machine against the element you cannot easily change — usually extraction distance or truck turnaround — and accept deliberate spare capacity only where it buys resilience.
4
Price dealer support as a line item
Parts availability, technician travel time and loan-machine policy are not service considerations in this segment; they are production inputs. Convert them into expected downtime hours and multiply by your own hourly production value. A support arrangement that saves three breakdown days a year is worth real money, and it belongs in the machine comparison alongside price.
5
Model the whole life, not the purchase
Capital cost is the most visible number and rarely the deciding one. Fuel, ground-engaging and cutting consumables, tyres or tracks, scheduled maintenance, operator wages, finance and depreciation together dominate the hourly rate. The guide's worked example — an $800,000 machine retained five years to a $300,000 residual — carries $100,000 a year in depreciation alone before a litre of fuel is burned.