What is your CNC machine actually worth on today’s market? Not what the books say — what a buyer actually pays today. This guide explains the six factors that determine the real market price of a used machine tool, and why book value and market price so often diverge.
The 6 factors that determine the price
1. Brand and series
Not all CNC machines lose value at the same rate. Hermle, DMG MORI (5-axis lines), Mazak, and Okuma hold their price far longer than standard entry-level brands. Three factors drive this: worldwide service availability, an active spare-parts supply, and a large installed base that creates a liquid secondary market.
A well-maintained 2015 Hermle C42 can still command solid resale value ten years after purchase — noticeably more than a comparably aged entry-level machine. The brand you choose at purchase also decides what you get back when you sell.
2. CNC control
The control is the single most important indicator of market value after the brand itself. Buyers worldwide look for machines whose operating concept their teams already know.
Value-increasing controls: Heidenhain TNC 640, Siemens 840D SL, CELOS (DMG MORI), MAZATROL SmoothG/SmoothX. Standard: Fanuc 30i, 31i, 0i — solid, no premium markup. Value-reducing: proprietary controls without an active market, Windows XP-based systems with no support.
A machine with one of the value-increasing controls listed above is noticeably worth more on the secondary market than the same machine fitted with a value-reducing, proprietary control that has no active market.
3. Spindle hours
Spindle hours measure how long the main spindle actually ran under load — the most direct indicator of mechanical wear. Power-on hours are far less informative: a machine can be switched on for eight hours a day but only running the spindle for two of them.
The thresholds differ by machine class. The hour ranges are rough guide values, not market data; the “Price impact” column describes only the direction of the effect, not its size:
Premium milling machines (Hermle, Röders, Mazak Variaxis):
| Spindle hours | Status | Price impact |
|---|---|---|
| Under 5,000 h | Very good — nearly like new | value-increasing |
| 5,000–10,000 h | Good — normal operation | neutral to slightly reducing |
| 10,000–15,000 h | Acceptable — inspection recommended | reducing |
| 15,000–25,000 h | High — spindle test report essential | clearly reducing |
| Over 25,000 h | Very high — assess the risk | strongly reducing |
Standard machines (DMG MORI, Mazak standard, Okuma):
| Spindle hours | Status | Price impact |
|---|---|---|
| Under 5,000 h | Very good | value-increasing |
| 5,000–8,000 h | Good | reference |
| 8,000–15,000 h | Normal | reducing |
| 15,000–20,000 h | High — inspection needed | clearly reducing |
| Over 20,000 h | Very high | strongly reducing |
Important: spindle hours alone say nothing about maintenance quality. 12,000 hours on a well-maintained Hermle spindle is often better than 6,000 hours on a neglected one.
4. Build year and value retention
Premium brands such as Hermle, Studer, or Reiden hold their value markedly better over the years than standard entry-level brands — and that gap widens with age. How much value actually erodes in a given case still depends on condition, spindle hours, and control.
5. Equipment and options
Not every add-on pays off equally at resale. The following increase the market price; how much depends on the model and build year, and we have no reliable public data basis for euro premiums:
- Through-spindle coolant (TSC): added value, depending on the machine.
- Large tool magazine (60+ pockets): increases the value compared with a standard magazine.
- Pallet changer or pallet pool: increase the value.
- 5-axis trunnion table vs. 3+2: a clear difference in value.
- HSK-A63 instead of SK40: premium over SK40.
- Probing systems (Renishaw): added value.
Forklift-pocket fixtures, unused auxiliary tables, and old software options with no active market: barely any premium.
6. Declared technical condition
The difference between “operational,” “minor faults,” and “out of service” is substantial in price terms:
- Operational, well maintained: reference price.
- Minor faults (coolant pump, lubrication system, door seal): small discount.
- Known spindle damage: clear discount, but never zero — the machine frame, axes, and control still carry substantial value.
- Control fault (board, panel): clear discount.
- Out of service, cause unknown: high risk discount, but the value can still be assessed.
Why book value ≠ market value
For machines with a CNC or other electronic control, German tax depreciation (AfA) rules, depending on the industry table, apply a service life of roughly 5 to 7 years (straight-line, around 14–20% per year) — shorter than for conventional machines. That means a machine five to seven years old is often at or near zero on the books, regardless of its real condition.
The market doesn’t reflect that reality. A ten-year-old Hermle C42 is fully depreciated on the books but still holds considerable value on the market. Conversely, some machines still carry a residual book value that no real buyer will pay, because the control and brand generate no demand.
Anchoring expectations to book value leads to unrealistic pricing and missed sale opportunities. The correct benchmark is always the actual market price of comparable transactions.
Three documents that increase the price
Maintenance log: Shows the machine has received regular oil, lubricant, and filter changes on schedule. Increases confidence in the machine’s condition and reduces the risk discount.
Spindle diagnostic report: A current measurement report (runout, vibration, temperature) from a service technician or spindle manufacturer. Can make a noticeable price difference on premium machines.
Original documents and manuals: Technical documentation, wiring diagrams, optional service records — increase the value for the next buyer and simplify export.
Injection moulding machines: different key figures
On injection moulding machines, the shot count replaces spindle hours as the main wear indicator. Clamping force, the condition of screw and barrel, and the control generation also matter.
Sawing machines: different key figures
On a sawing machine, saw cycles replace spindle hours as the main wear indicator. Cutting range, degree of automation, material feed, and control generation also matter — as does the condition of the blade guides and feed.
Gear-cutting machines: different key figures
On a gear-cutting machine, workpiece diameter, maximum module, control generation, accuracy documentation, and automation determine the value — not spindle hours alone.
Request a free valuation
If you want to know what your machine is concretely worth today, we need: make, model, year, spindle hours, control, and three to five photos. You’ll get an initial assessment — no obligation, no cost. You can work out an initial range as a percentage of the new price yourself in advance with the residual value calculator.