Last verified against the primary source on Sep 11, 2026.
~$89,900 to ~$177,800 used — the wide spread reflects control (Siemens vs Heidenhain), spindle (10k vs 18k rpm) and ATC size. High-rpm spindle and TSC seal are the big cost risks; on a 5-axis, the trunnion/rotary table backlash is the defining used-machine inspection. Confirm control type and 5-axis accuracy.
Confidence 50%3 observed comparables
As of Sep 11, 2026What can make the cheap machine expensive?
| Component | Severity | Documented repair cost |
|---|---|---|
| High-speed spindle bearing | high | not yet verified |
| Coolant intrusion via TSC | high | not yet verified |
The higher-spec units run an 18,000 RPM HSK spindle; high-rpm spindles have shorter bearing life. Rebuild-vs-replace economics and runout thresholds are documented (Haas-framed, but the mechanism is general) — treat the cost band as indicative, not DMU-specific. Check runout and high-rpm noise.
Cost not yet verifiedUnits carry through-spindle coolant; the same seal/air-purge failure path washes out bearing grease. Verify the rotary-union seal and air-purge pressure.
Cost not yet verifiedInspection point (not independently sourced this pass): the tilting-rotary table is the defining wear item on a used 5-axis — inspect for backlash and clamp integrity, and test a 5-axis part for accuracy. Treat as a pre-purchase check, not a documented defect.
Cost not yet verifiedA Haas VF-series rebuild has come in between $4,800 and $7,200 … a replacement spindle for the same machine … runs $16,000 to $24,000 before install.
Common questions
How much does a used DMG Mori DMU 50 cost?
Observed listings range roughly $89,900 to $177,800 depending on age, condition, and configuration (as of 2026-09-11).
What fails on the DMG Mori DMU 50?
The most cited concerns in our evidence record: High-speed spindle bearing, Coolant intrusion via TSC, 5-axis trunnion / swivel-rotary (B/C axis). See the risk breakdown above for details and sources.
From the research record
- PRICE (SECONDARY, Machinio aggregate + live listings, as-of 2026-09-11): 2010–2014 ~$89,900–$177,800; 2015 $129,500; 2015 DMU 50 (Siemens ERGOline, 5-axis, 18k rpm, 60 ATC, TSC) and 2013 DMU 50 ECO Line (Heidenhain ERGOline, 10k CAT-40, 30 ATC) contact-for-price (https://www.machinio.com/models/dmg-mori/dmu-50). Bands are multi-listing aggregates; observations is a floor. Spread reflects control/spindle/ATC.
- CONTROL: runs Siemens OR Heidenhain, not Fanuc — mainstream, long-supported controls, but board/drive repairs are expensive and neither carries Fanuc's blanket lifetime statement (Fanuc statement fetched for contrast). Control type confirmed from Machinio listing text.
Sources
- DMG Mori DMU 50 used prices (model page)web · research-cited · accessed 2026-09-11
- Spindle Rebuild vs Replace Economicsweb · research-cited · accessed 2026-09-11
- Coolant Intrusion Damageweb · research-cited · accessed 2026-09-11
- FANUC CNC Systems (lifetime-support statement)official · verified-official · accessed 2026-09-11
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