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What to Look for When Buying a Used INDEX
INDEX machines are built to German precision standards for continuous production turning. The brand's reputation for rigidity, accuracy, and longevity makes used units highly desirable, but proper inspection remains essential.
On turn-mill centers, check spindles, turrets, and milling. Test main and counter spindle runout across the full RPM range. On G-series machines with motorized milling spindles, verify performance under load and test the tool magazine through every station. Confirm Y-axis positioning accuracy.
On production lathes, verify turret indexing and dynamics. INDEX C100 and C200 machines use the proprietary SingleSlide guideway system for high-speed dynamics. Test each turret for smooth indexing through all positions. On 3-turret configurations, confirm simultaneous operation without interference.
On multi-spindle machines, inspect every spindle station. INDEX MS-series lathes run 6 or 8 spindles simultaneously at up to 10,000 RPM. Test each spindle for runout, bearing condition, and speed consistency. Verify Hirth coupling engagement on the spindle drum. Check all tool carriers for smooth axis travel.
Confirm the control platform and software. Current INDEX machines use Siemens 840D sl or Fanuc 31i-B controls with the INDEX iXpanel operating system. Verify the control boots cleanly, all axes home correctly, and communication with peripherals works properly.
INDEX G-Series Turn-Mill Centers
INDEX G220 & G200.3
The G220 is a powerful turn-mill center with dual motorized milling spindles, 70 or 140 magazine stations, and 6-second chip-to-chip time. With 65 mm spindle clearance and 165 mm chuck diameter, it handles complex workpieces requiring simultaneous turning and milling. The G200.3 variant offers a compact footprint for smaller work envelopes.
INDEX G300/G320 through G500/G520
The G300/G320 (76 mm spindle, 230 mm chuck) and G400/G420 (102 mm spindle, 250 mm chuck, 1400 mm turning length) scale capacity for larger aerospace and automotive workpieces. The G500/G520 extends the platform further. All G-series share dual milling spindles, large tool magazines, and the iXpanel interface.
INDEX R200 & R300
The R200 delivers high-performance complete machining in a compact footprint. The R300 provides full 5-axis turn-milling with up to 140 tools and a 6-second chip-to-chip time. Both feature independently operating milling spindles with automation options including gantry loaders and robotic cells.
INDEX Production Turning Machines
The INDEX ABC serves as a versatile production lathe available as a 2-axis CNC or full turn-mill center with Y-axis, sub-spindle, and milling drive. The C100 (42 mm spindle, 110 mm chuck) and C200 operate as twin-spindle, 2 or 3-turret machines with exceptional acceleration and the SingleSlide guideway system for high dynamics with superior vibration damping.
INDEX Multi-Spindle Automatic Lathes
The INDEX MS-series represents the pinnacle of high-volume CNC turning. The MS16-6/Plus (16/22 mm bar) offers 6 spindles at 10,000 RPM. The MS22-8 adds 8 spindles with up to 16 tool carriers. The MS32-6, MS40-6/MS40-8, and MS52-6 scale bar capacity from 32 mm through 52 mm. All MS machines feature C-axis capability, synchronous spindles, and live tooling across all stations.
TRAUB Sliding Headstock Machines
The TRAUB brand (part of the INDEX Group since 1997) produces Swiss-type automatic lathes combining sliding headstock precision with turret versatility. The TNL12, TNL20, and TNL32 cover bar diameters from 12 mm through 32 mm, built for complex small parts in medical, aerospace, and electronics applications.
How to Sell Your Used INDEX
INDEX and TRAUB machines hold strong resale value thanks to German build quality and consistent demand from precision manufacturers.
Resell CNC buys used INDEX and TRAUB machines: every model, every generation, nationwide.
- Contact us — call (844) 478-8181 or email sales@resellcnc.com.
- Free appraisal within 24 hours — no obligation.
- Accept the offer — we handle rigging, transport, and logistics.
Frequently Asked Questions About Used INDEX Machines
Are used INDEX machines reliable?
Yes. INDEX has manufactured turning machines in Germany since 1914, with majority ownership by the Eugen and Irmgard Hahn Foundation ensuring long-term stability. The global service network (80 locations) provides ongoing support.
What is the difference between INDEX and TRAUB?
Both are brands within the INDEX Group. INDEX acquired TRAUB in 1997. INDEX covers turn-mill centers, production lathes, multi-spindle automatics, and vertical turning. TRAUB specializes in sliding headstock (Swiss-type) automatic lathes. Both share the same service network and Noblesville, Indiana US headquarters.
What CNC control does INDEX use?
Current INDEX machines use Siemens 840D sl or Fanuc 31i-B controls paired with the proprietary iXpanel operating system. Legacy models may use earlier Siemens or Fanuc versions.
What INDEX models hold their value best?
G-series turn-mill centers (G220, G400), MS multi-spindle automatics, C-series production lathes, and TRAUB TNL Swiss machines all maintain strong resale values. Machines with current Siemens 840D sl controls and automation integration command premiums. Call (844) 478-8181 for current valuations.
What industries use INDEX machines?
INDEX turning machines serve aerospace, automotive, medical device, energy, and general precision manufacturing.
Does Resell CNC offer financing on used INDEX 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 INDEX?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every INDEX and TRAUB model nationwide. Free appraisal within 24 hours.