# Doosan PUMA 240B Used Price & Common Problems | CNC Ledger

> Doosan PUMA 240B: one used listing at $29,900. Documented problems: spindle bearings. What to inspect before you buy.

**Verdict:** insufficient-data

Doosan PUMA 240B (CNC lathe): real dealer prices.

**Observed used price:** $29,900–$29,900

**Documented failure risks:**
- Way covers / turcite (Rulon) box-way liner: A 2007 Puma 240B lost adhesion of the turcite (Rulon) strip on the X-axis box ways, requiring full disassembly, re-gluing, and re-scraping of all way strips; the same machine had also developed worn ('whiney') spindle bearings. A forum expert noted Doosan lathes are known for this turcite adhesion failure.
- Spindle bearings: The same 2007 Puma 240B with failed turcite way liners had also developed audibly worn spindle bearings, with a full spindle bearing rebuild estimated at $7,500-$20,000+ on top of the way-liner repair.
- Turret indexing shaft / camshaft: On a Puma 240LC, the turret stopped indexing tools on the spindle centerline; when re-tramming the turret in X and Z did not fix it, the diagnosis was a bent indexing shaft or camshaft inside the turret requiring replacement.
- Turret PRO-MOTION servo / encoder: On a Doosan/Daewoo Puma 240L, three positions on a 10-station turret showed a small reverse 'kick' of the servo during lock, persisting even after disconnecting the mechanical belt and recalibrating the encoder, pointing to a servo amplifier or encoder fault rather than mechanical wear.

## Sources
- [revelationmachinery.com dealer listing](https://revelationmachinery.com/product/doosan-puma-240b-cnc-lathe-2005-bar-feeder/) (accessed 2026-09-07)
- [revelationmachinery.com dealer listing](https://revelationmachinery.com/product/daewoo-puma-240-cnc-lathe-2005-fanuc-tailstock/) (accessed 2026-09-07)
- [practicalmachinist.com (owner/operator failure report)](https://www.practicalmachinist.com/forum/threads/doosan-puma-240-turcite-strip-replacement.365012/) (accessed 2026-09-08)
- [practicalmachinist.com (owner/operator failure report)](https://www.practicalmachinist.com/forum/threads/puma-240-lc-turret-alignment.334689/) (accessed 2026-09-08)
- [practicalmachinist.com (owner/operator failure report)](https://www.practicalmachinist.com/forum/threads/problem-with-pro-motion-doosan-daewoo-puma-240l.433465/) (accessed 2026-09-08)

_Last verified 2026-09-07. Source: CNC Ledger — https://cncledger.com/machines/doosan-puma-240b/ — every claim checked against a primary source before publication (see /methodology/)._