What to Look for When Buying a Used DN Solutions
DN Solutions machines (and their Doosan and Daewoo predecessors) are known for rigid construction, Fanuc control reliability, and strong parts availability. The same platforms span three brand eras, so inspection priorities are consistent.
On Puma and Lynx turning centers, inspect the spindle, turret, and sub-spindle. Measure spindle nose runout (target under 0.0002") and listen for bearing noise across the RPM range. Coolant ingress past front labyrinth seals is the leading cause of catastrophic spindle failure, so check the nose for rust or residue. On BMT45, BMT55, and BMT65 turrets, verify every live-tool station and look for circular crash damage around turret face bolt holes. On sub-spindle SY models, test phase-sync and clean part transfer.
On DNM, Mynx, NHP, and DVF machines, verify the spindle, ATC, and control. Test spindle runout, bearing noise, and thermal stability after warm-up. On older cam-style ATCs, confirm the tool-carousel VFD has no alarm history (a recurring issue on pre-4th-generation DNM 5700 units). Cycle the ATC through every pocket and check the Big-Plus CAT40 taper face for crash damage. On DVF 5-axis machines, measure positional repeatability with B and C axis brakes engaged versus released to indicate trunnion wear. On pre-2005 Daewoo units, confirm 3V SRAM battery status; a dead battery wipes parameters.
DN Solutions Turning Centers
Lynx Series (Compact Turning)
The Lynx series is the most widely traded compact CNC lathe on the North American used market. The Lynx 220 (A, B, C, L, M, Y, LSY variants) offers 6" and 8" chucks with optional live tooling, Y-axis, and sub-spindle. The refreshed Lynx 2100 and 2600 families are current-generation replacements.
Puma Series (Heavy-Duty Turning)
The Puma line covers 10" through 32" chucks. Puma 2100 and 2600 are the volume leaders on the used market. Larger Puma 3100, 4100, 5100 and big-bore Puma 600 through 1000 handle oil-country and heavy shaft work. Puma GT 2100/2600 and newer Puma DNT 2100/2600 (2023+) are box-way platforms. Puma TL, TT, and TW add twin-turret and twin-spindle configurations, and Puma V and VT cover vertical turning.
Puma SMX & MX Mill-Turn
The Puma SMX (2100, 2600, 3100, 5100L) combines full 5-axis milling with turning in a single setup. ST variants add a sub-spindle and lower turret. Legacy Puma MX (MX1600 through MX2600ST) remains common used. The newer DNX 2100 is a compact multitasking platform introduced in 2024.
DN Solutions Machining Centers
DNM Series (Vertical Machining)
The DNM series is DN Solutions' flagship VMC line and the most commonly traded used. DNM 4500, 5700, and 6700 are the volume leaders, with L (long-bed) and S (15,000 rpm) variants. The 2023+ DNM 4th Generation adds 15" iHMI, dual thermal compensation, and roller guides.
Mynx, VC & Large Mills
The Mynx II (5400, 6500, 7500, 9500, plus /50 heavy-taper variants) offers budget-friendly VMC performance. The VC series (430, 510, 3600) and SVM machines cover high-speed and mold work. Large VCF bridge mills and BM, DBM, DCM, GVX double-column and gantry machines handle the biggest parts.
NHP, NHM & 5-Axis
The NHP series (NHP 4000 through 8000) delivers high-speed linear-guideway horizontals with pallet changers, widely used in automotive production. The NHM series (5000, 6300, 8000) uses box guideways for heavy-duty CAT50 cutting. Legacy HP and HC machines remain on the used market. The DVF series (DVF 4000, 5000, 6500, 8000) is DN Solutions' trunnion-style 5-axis platform, with T variants adding C-axis turning. The DHF 8000 adds 800 mm pallet horizontal 5-axis, and DNM 5AX offers entry 5-axis on the DNM platform.
How to Sell Your Used DN Solutions, Doosan, or Daewoo
DN Solutions machines hold strong resale value thanks to the global installed base, Fanuc platform, and reliable support network. Puma 2100/2600, Lynx 220, DNM 4500/5700/6700, Mynx 6500, and DVF 5000 are in particularly high demand.
Resell CNC buys used DN Solutions, Doosan, and Daewoo machines nationwide.
- Contact us at (844) 478-8181 or sales@resellcnc.com.
- Free appraisal within 24 hours, no obligation.
- Accept the offer and we handle rigging, transport, and logistics.
Frequently Asked Questions About Used DN Solutions Machines
What is the difference between DN Solutions, Doosan, and Daewoo?
They are the same company's machines under three brand eras. Daewoo Heavy Industries built the Changwon factory in 1976 and produced Daewoo-badged machines through 2005. Doosan acquired the business in 2005 and produced Doosan-badged machines through 2022. DN Automotive acquired it in January 2022 and rebranded to DN Solutions in June 2022. Puma, Lynx, DNM, Mynx, DVF, and SMX model names carry across all three eras.
Is DN Solutions still part of Doosan?
No. DN Solutions is owned by DN Automotive Corporation, which acquired it in January 2022. The Doosan name was retired from machine tools on June 2, 2022. The separate Doosan Infracore construction equipment business was sold to HD Hyundai and is unrelated to DN Solutions.
What CNC control does DN Solutions use?
Fanuc is the primary control. Current machines use Fanuc 0i-MF or 0i-TF Plus on entry models and Fanuc 31i-B5 on DVF, Puma SMX, and larger platforms. Siemens 840D sl and Heidenhain iTNC 640 are available on select 5-axis models. DN Solutions layers its proprietary CUFOS operating system on top of Fanuc with DCP-i probing and DTCPC tool-center-point control.
Are used DN Solutions machines reliable?
Yes. DN Solutions and its Doosan and Daewoo predecessors are known for rigid construction and long service life. The company has delivered over 300,000 machines globally since 1976, with parts and service through DN Solutions America in Pine Brook, New Jersey and the Chicago Technical Center in Schaumburg, Illinois.
What DN Solutions models hold their value best?
Puma 2100 and 2600, Lynx 220, DNM 4500/5700/6700, Mynx 6500, and Puma SMX and MX mill-turn machines maintain strong resale values. Newer DVF 5000 5-axis machines from 2019+ hold premium pricing. Call (844) 478-8181 for current valuations.
Does Resell CNC offer financing on used DN Solutions machines?
Yes. Resell CNC offers flexible financing options to help your business acquire the equipment it needs. Contact us at (844) 478-8181 to discuss terms.
How do I sell my used DN Solutions?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every DN Solutions, Doosan, and Daewoo model nationwide. Free appraisal within 24 hours.