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CNC Horizontal Machining Center (HMC)

DMG Mori NHX 4000: Used-Buy Risk, Repairs & What to Check

Used DMG Mori NHX 4000 buying guide, prices $79,900-$154,900, axis rigidity / rapid risk, repair costs and what to inspect.

Status: published
Used range$79,900–$154,900
Recallnone found
Known risks3
Sources6
Verified2026-09-05
Decision status
insufficient-data

Research queued -- not yet a public verdict.

Confidence 0%
Market context
$94,750

4 observed comparables

As of Sep 5, 2026
Failure & Downtime Exposure

What can make the cheap machine expensive?

Axis rigidity / rapid accelerationmedium

Aggressive factory rapid-acceleration settings (tuned for cycle time) can cause the machine to shake at full-speed rapids; technicians commonly reduce Fanuc acceleration parameters to control it.

Cost not yet verified
Pallet pool hydraulicsmedium

Intermittent pauses while tilting the automatic pallet changer down after moving a pallet, traced to hydraulic cylinder binding, a manifold valve fault, or a faulty proximity switch.

Cost not yet verified
Chip conveyor / controlmedium

Owners report the chip conveyor struggling to keep up with high chip volumes, plus control input latency, as recurring reliability complaints on NHX-family machines.

Cost not yet verified

Common questions

How much does a used DMG Mori NHX 4000 cost?

Observed listings range roughly $79,900 to $154,900 depending on age, condition, and configuration (as of 2026-09-05).

What fails on the DMG Mori NHX 4000?

The most cited concerns in our evidence record: Axis rigidity / rapid acceleration, Pallet pool hydraulics, Chip conveyor / control. See the risk breakdown above for details and sources.

Evidence excerpts

From the research record

  • FAILURE (2026-09-05, agent-fetched, Claude spot-verified sample): Axis rigidity / rapid acceleration: "NHX rapid accelerations have gotten more and more savage over the years in an effort to compete on cycle times. I've had techs tune down the accelerations on brand new machines." https://www.practicalmachinist.com/forum/threads/mori-shakes-aggressively.425544/
  • FAILURE (2026-09-05, agent-fetched, Claude spot-verified sample): Pallet pool hydraulics: "The unit is pausing while tilting down in the extended position after moving a pallet." https://www.practicalmachinist.com/forum/threads/intermittent-pallet-pool-hydraulic-problem.429635/
  • FAILURE (2026-09-05, agent-fetched, Claude spot-verified sample): Chip conveyor / control: "The Iron is very good, but the chip conveyor is the biggest hunk of shit around. It just can't keep up with high volumes of chips." https://www.practicalmachinist.com/forum/threads/dmg-mori-experiences-and-impressions.381657/page-3
  • NOTE (2026-09-05): The 2012 unit is listed under the pre-DMG-merger name 'Mori Seiki NHX4000' but is the same model line as the 'DMG NHX-4000', so both are counted as exact matches. A different, larger model (NHX5000, $79,900, 2012) also appeared in results and was excluded.
  • NOTE (2026-09-05): theequipmenthub.com returned no results for this model.
  • MARKET (4 real exact-model listings combined, 2026-09-05): revelationmachinery.com: $154,900 (2019), $79,900 (2012, listed as Mori Seiki NHX4000 pre-merger name, same model line); eBay: $89,500 (2017), $99,999 (2017 Gen 2). low $79,900 / median $94,750 / high $154,900.
Reference list

Sources

  1. practicalmachinist.com (failure evidence)practitioner-forum · verified · accessed 2026-09-05
  2. practicalmachinist.com (failure evidence)practitioner-forum · verified · accessed 2026-09-05
  3. practicalmachinist.com (failure evidence)practitioner-forum · verified · accessed 2026-09-05
  4. revelationmachinery.com dealer listing searchdealer-inventory-aggregator · verified · accessed 2026-09-05
  5. revelationmachinery.com dealer listings (2 exact-model, verified)dealer-inventory-aggregator · verified · accessed 2026-09-05
  6. eBay live listings (2 exact-model matches via automated engine)marketplace-observation · observed · accessed 2026-09-05