Appearance
A well-planned decommissioning recovers 10–20% of original machine value through resale and scrap. Poor planning leaves hazardous waste, lost data, and a machine that cannot be moved. Plan the end before you install the beginning.
Decommissioning Procedure
Step 1: Preparation
- [ ] Notify all stakeholders (production, maintenance, EHS, IT)
- [ ] Schedule decommissioning during planned shutdown
- [ ] Arrange rigging contractor for removal
- [ ] Prepare waste disposal contracts for coolant, oil, batteries
- [ ] Back up CNC programs, parameters, and PLC data
- [ ] Remove proprietary tooling and fixturing
Step 2: Fluids and Waste Removal
| Fluid/Waste | Disposal Method | Typical Cost |
|---|---|---|
| Coolant (water-based) | Licensed waste treatment facility | $200–500 per 1,000 L |
| Hydraulic oil | Oil recycling service | $100–300 per 200 L |
| Way lubricant | Oil recycling service | $50–200 per drum |
| Coolant sludge | Hazardous waste disposal | $500–2,000 per drum |
| Batteries (CNC backup) | Battery recycling | $20–50 |
Step 3: Disconnection
- Disconnect electrical supply (lockout/tagout)
- Disconnect coolant piping (cap all openings)
- Disconnect compressed air lines
- Label all connections for future reference (if machine is for resale)
- Remove anchor bolts and leveling pads
Step 4: Data Sanitisation
| Data Type | Location | Sanitisation Method |
|---|---|---|
| CNC part programs | CNC memory | Factory reset or secure erase |
| Machine parameters | CNC memory | Record and then clear |
| PLC program | PLC memory | Overwrite or remove memory card |
| Operator logs | HMI memory | Factory reset |
| Network configuration | Control cabinet | Document and remove |
Warning: CNC part programs may contain proprietary design data. Do not sell or scrap a machine without sanitising the CNC memory. A factory reset is not always sufficient — consult the manufacturer for secure erase procedures.
Asset Valuation and Resale
Determining Resale Value
| Machine Condition | Resale Value (% of original) | Market |
|---|---|---|
| Excellent, well-maintained, < 10 years | 30–50% | Active market |
| Good, regular maintenance, 10–20 years | 15–30% | Moderate market |
| Fair, visible wear, 20–30 years | 5–15% | Limited market |
| Poor, damaged, non-operational | Scrap value only (3–8%) | Scrap dealer |
Resale Channels
| Channel | Pros | Cons |
|---|---|---|
| Machine tool dealer | Fast sale, handles logistics | Dealer takes 20–30% commission |
| Online auction (e.g., Bidspotter) | Wide audience | Low prices, as-is basis |
| Direct sale to known buyer | Best price | Requires your effort |
| Trade-in to manufacturer | Simple, offsets new purchase | Manufacturer offers low trade-in value |
| Component harvesting | Maximises value of spares | Time-consuming, partial recovery |
Environmental Compliance
Regulations by Region
| Region | Key Regulations | Requirements |
|---|---|---|
| EU | WEEE Directive, Waste Framework Directive | Proper disposal of electronic and hazardous waste |
| US | RCRA, EPA regulations | Hazardous waste manifest for coolant, oil, batteries |
| China | Solid Waste Pollution Prevention Law | Licensed disposal required |
| UK | WEEE Regulations, Hazardous Waste Regulations | Registered waste carrier required |
Documentation to Keep
- Waste disposal manifests for all hazardous materials
- Certificate of destruction (if scrapped)
- Bill of sale (if sold)
- Data sanitisation certificate
- Decommissioning sign-off form
Replacement Timing
Signs It Is Time to Replace
| Sign | Impact |
|---|---|
| Spare parts no longer available | Any breakdown causes extended downtime |
| Annual maintenance cost exceeds 20% of replacement cost | Economically obsolete |
| Cannot meet current quality requirements | Losing customers |
| Energy cost 2× modern equivalent | Paying more to run old machine |
| No operator available with relevant experience | Skills gap |
Planning the Transition
- Order new machine 6–12 months before target decommission date
- Run old and new machines in parallel for 1–3 months (if space permits)
- Transfer tooling and workholding to new machine
- Decommission old machine only after new machine is fully qualified
- Sell or scrap old machine within 3 months of decommissioning
FAQ
How much can I get for a 20-year-old BTA machine?
Typically 10–20% of original purchase price if well-maintained, 5–10% if in fair condition. Large machines (> 10 m capacity) have limited resale market and may only fetch scrap value.
Do I need to remove the machine foundation after decommissioning?
If the space will be used for production, yes — the foundation may interfere with new equipment. Foundation removal costs $2,000–10,000 depending on size and reinforcement.
Who is responsible for decommissioning costs?
The machine owner. Budget 3–8% of the original machine value for proper decommissioning including rigging, waste disposal, and data sanitisation.
Can I donate an old machine for a tax deduction?
Yes, if the machine has marketable value and the recipient is a qualified charitable organisation. Obtain an independent appraisal to support the deduction value.
What CNC data must be preserved before decommissioning?
Machine parameters and servo tuning data (for reference on similar machines), PLC programs (may contain proprietary logic), and any custom macro programs developed in-house.
End-of-life requirements vary by region, machine type, and disposal method. Consult environmental and legal advisors for compliance with local regulations. This article reflects industry practice as of 2026.