What a farm implement actually costs you to build
Most small manufacturers price by copying the firm down the road. Build the cost from the bill of materials up instead — including the four costs nobody counts.
Ask a small implement maker what his rotavator costs to build and you usually get a number that is really a memory of last year’s steel price, plus a feeling about labour. That is not a costing, and it is why firms discover at the end of a season that their best-selling machine was their worst-earning one.
Build the number, do not recall it
A workable cost resolves into six blocks. For a tractor-drawn implement:
- Bought-out components — gearbox, bearings, seals, PTO shaft, fasteners. The largest single line, and the easiest to price accurately because someone invoices you for it.
- Raw material — plate, section, shafting, blade steel. Cost the weight you actually consume, not the weight in the drawing. Offcut and scrap are real.
- Fabrication labour — measured, not estimated. Weld time is the line most often understated.
- Machining and finishing — surface preparation and paint, routinely under-costed.
- Bought-in services — heat treatment, plating, anything sent out.
- Overhead absorption — the part almost every small firm leaves out entirely.
The four that get left out
Overhead. Shed rent, power, interest, the office, the vehicle. Divide annual fixed cost by a realistic annual volume, not your best year.
The owner’s time. If you are doing design, sales, purchase and quality yourself, that is a salary the business is not paying. The day you hire someone to do it, your cost per machine rises — unless it was in the number all along.
Idle capacity. Implement demand is seasonal. A shed that runs four months carries twelve months of cost.
Warranty and rework. A small percentage, applied honestly, across every machine.
Know your own floor. Then decide what to do about the competition’s price — undercut it deliberately, or refuse to. Either is defensible. Not knowing is not.
What changes once you have the number
In our experience, three things:
- Firms stop taking certain orders, because the loss-making ones become visible.
- Discounting becomes a decision rather than a reflex.
- Conversations with dealers change, because you can hold a price and explain why.
The last one matters most. A dealer pushes hardest for the manufacturer who does not flinch, because that is the manufacturer who will still be supplying him in three years.
Common questions
- How should a small implement manufacturer calculate cost per machine?
- Build it from the bill of materials upward: bought-out components at current landed prices, raw material by actual consumed weight including scrap, direct labour by measured time rather than estimate, then an overhead rate per machine derived from annual fixed cost divided by realistic annual volume. A number recalled from memory is not a costing.
- What costs do implement manufacturers usually leave out?
- Four recur constantly: overhead absorption, the owner's own time, the cost of capacity that sits idle out of season, and warranty or rework. Leaving them out makes every machine look more profitable than it is, and the error grows with discounting.
- Why is copying a competitor's price dangerous?
- His steel contract, labour structure, machinery depreciation and cash position are not yours. He may be quoting badly because he needs cash this month. Copying the price copies circumstances you cannot see.
- How often should a costing be updated?
- Whenever a major bought-out price moves, and at minimum once a season. Steel and gearbox prices move enough within a year to turn a designed margin into a loss without anything visible changing on the shop floor.