Technical Insights — Used CNC
Buying and Owning Used CNC: Inspection, Costs, and Retrofits
Shops buy used iron all the time. The diligence step is where money is made or lost. This pillar covers inspection checklists by failure-prone subsystem, era-by-era buying guides for the major OEMs we service, total-cost-of-ownership math, and the retrofit-vs-replace decision for legacy machines.
Articles in this series
This series is just getting started — 15 articles drafting. We publish when the work on the bench warrants writing it down.
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Coming soon
Used VMC Inspection Checklist: What We Actually Check
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Coming soon
Used Mazak Buying Guide: Era-by-Era
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Coming soon
Used Haas Buying: Classic Control vs. NGC
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Coming soon
Used DMG Mori: Identifying Post-Merger Machines
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Coming soon
Used Doosan/Daewoo: Parts Continuity Across the Rename
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Coming soon
Used Okuma: OSP Era and Resale
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Coming soon
Used Fanuc-Controlled Machines: Control vs. Iron Value
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Coming soon
Legacy Fadal: Still Viable, with Caveats
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Coming soon
Hitachi Seiki Legacy: The Parts Reality
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Coming soon
Total Cost of Ownership: Used vs. New
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Coming soon
Retrofit ROI on Legacy Iron: When It Pencils
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Coming soon
Used Machine Inspection: Spindle Red Flags
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Coming soon
Used Machine Inspection: Way and Ballscrew Red Flags
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Coming soon
Used Machine Inspection: Control Red Flags
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Coming soon
Auctions vs. Broker vs. Private Sale: Buying Used CNC
When you need the work done
These articles are working notes — diagnostic logic, decision frameworks, the cost-and-lead-time math. For the service itself (quotes, scheduling, what we actually do on the bench and in the field), the page is at /repairs/.