Index G220

$450,000 - $650,000 (new) Updated 2025-03-15

Key Specifications

Rapid Traverse

30 m/min (1,181 ipm)

Max Turn Length

900 mm / 1.200 mm

max bar capacity

65 mm (2.56 in)

max turning diameter

220 mm (8.66 in)

main spindle power

29 kW (39 HP)

main spindle speed

6,000 RPM

Overview

The Index G220 is a high-performance turn-mill center for complete machining of complex parts in a single setup. It features a main spindle and counter-spindle, both delivering 29 kW (39 HP) at 6,000 RPM with C-axis. Bar capacity is 65 mm (2.56 in).

The machine has two independent tool turrets plus a motorized Y-axis milling spindle delivering 12 kW at 12,000 RPM. This enables simultaneous operations -- turning with one turret while milling with the other -- dramatically reducing cycle times.

The polymer concrete base provides superior vibration damping for simultaneous multi-axis operations. Index's C200-SL control (Siemens 840D SL) with Virtual Machine simulation manages synchronized operations across all spindles and axes.

New G220 machines price $450,000-$650,000. Competes with DMG Mori CTX gamma, Mazak Integrex i-series, and Okuma Multus U-series. Index's advantage is polymer concrete base, Virtual Machine, and deep turn-mill expertise.

Full Specifications

Parameter	Value
Max Bar Capacity	65 mm (2.56 in)
Max Turning Diameter	220 mm (8.66 in)
Max Turning Length	900 mm / 1.200 mm
Main Spindle Power	29 kW (39 HP)
Main Spindle Speed	6,000 RPM
Counter Spindle Power	29 kW (39 HP)
Counter Spindle Speed	6,000 RPM
C Axis	Both spindles
Milling Spindle Power	12 kW
Milling Spindle Speed	12,000 RPM
Y Axis Travel	100 mm (+/- 50 mm)
Lower Turret Stations	Up to 12
X Axis Travel	215 mm (8.46 in)
Z Axis Travel	800 mm (31.5 in)
Rapid Traverse Rate	30 m/min (1,181 ipm)
Bed Material	Polymer concrete (mineral casting)
CNC Control	Index C200-SL (Siemens 840D SL)
Virtual Machine	Yes, with collision detection
Machine Weight	8,500 kg (18,739 lb) approx.
Guest Name	Dietary Restriction
David	None
Bob	None
Nancy	None
Mary	Vegetarian
Formula	Formula Output
Index	3
Goal	Formula
Find Marys Dietary Restriction	=INDEX(A1:D6, MATCH("Mary", A1:A6, 0), MATCH("Dietary Restriction", A1:D1, 0))
Find Who Is At Table Number 2	=INDEX(A1:D6, MATCH(2, D1:D6, 0), MATCH("Guest Name", A1:D1, 0))
Spindle Torque Max	207 Nm
Chuck Size	230 mm

Specifications sourced from index-group.com — verified 2026-03-28

Strengths & Limitations

Strengths

Complete machining with dual spindles, two turrets, and Y-axis milling spindle in single setup
Simultaneous cutting with independent turrets dramatically reduces cycle times
Polymer concrete base provides 6-8x vibration damping vs cast iron for multi-axis accuracy
Virtual Machine prevents crashes and reduces setup time on complex programs
Identical 29 kW/6,000 RPM specs on both spindles for full capability on both sides
12 kW/12,000 RPM milling spindle handles substantial milling work

Limitations

$450,000-$650,000 requires high-value complex parts to justify over simpler machines
Proprietary control and programming require dedicated training
Complex simultaneous programming needs CAM software rather than manual programming
Index's North American service footprint is smaller than DMG Mori, Mazak, or Okuma
65 mm bar capacity limits to small-to-medium bar work

Best For

Aerospace manufacturers machining complex multi-feature parts requiring 3-4 setups currently Medical device companies producing implants and instruments with complex geometry Precision contract shops needing complete machining capability Production environments where Virtual Machine simulation drives setup reduction Shops machining titanium, Inconel, and hardened steels benefiting from polymer concrete damping Alternative to DMG Mori CTX gamma or Mazak Integrex with German quality

Frequently Asked Questions

01 What does it cost?

$450,000-$650,000 new. Standard config ~$475,000-$550,000. Premium options push to $600,000-$650,000.

02 vs DMG Mori CTX gamma 2000?

Both are premium mill-turn centers. Index uses polymer concrete vs DMG Mori cast iron. Index Virtual Machine is more mature. DMG Mori has larger service network.

03 Can it replace a lathe and mill?

For many parts, yes. Turning on both spindles, Y-axis milling, and C-axis eliminates re-fixturing. 12 kW/12,000 RPM milling is substantial.

04 What is simultaneous machining?

Two cutting operations at once -- e.g., turning OD with lower turret while milling with upper spindle. Parallel processing dramatically reduces cycle time.

05 Programming software?

Index WinFlexIPS for optimization plus standard G-code from Mastercam, Esprit, GibbsCAM with post-processors.