INDEX C400
Key Specifications
Rapid Traverse
Max Turn Length
max bar capacity
max turning diameter
main spindle speed
counter spindle speed
How much does the INDEX C400 cost?
Estimated price range
Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from INDEX-Traub. Configuration moves it a long way.
Overview
The INDEX C400 is a turn-mill machine with a B-axis milling spindle, listed with 65 mm (2.559 in) bar capacity, a 120 mm (4.72 in) maximum turning diameter and 600 mm (23.62 in) of turning length. Main and counter spindle both run to 5,500 RPM, and the milling spindle reaches 10,000 RPM on a B-axis that swings from −10° to +210°, giving 5 simultaneous axes (X, Y, Z, B, C) plus the counter spindle.
The listed figures place it between two siblings. The C200 has a B-axis range of −10° to +190° and a Y-axis stroke of ±50 mm; the C400 swings further, to +210°, and has a ±70 mm Y stroke. The C600 widens Y again, to ±90 mm, and an 18-station VDI 50 turret. On the C400 the turret has 16 stations in VDI 40.
Rapid traverse is 35 m/min on X and Z and 24 m/min on Y. The control is listed as Siemens 840D sl (INDEX iXpanel). The machine weighs 11,000 kg (24,251 lb) and needs 4.2 m × 2.8 m of floor space.
Treat the listed figures as provisional: the table gives no spindle power or torque, and the 120 mm turning diameter is small for a machine of this weight, so get the envelope, spindle ratings and tooling confirmed in writing by INDEX before relying on them.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 65 mm (2.559 in) |
| Max Turning Diameter | 120 mm (4.72 in) |
| Max Turning Length | 600 mm (23.62 in) |
| Main Spindle Speed | 5,500 RPM |
| Counter Spindle Speed | 5,500 RPM |
| Milling Spindle Speed | 10,000 RPM |
| Number of Axes | 5 simultaneous (X, Y, Z, B, C + counter spindle) |
| B Axis Range | −10° to +210° |
| Turret Stations | 16 (VDI 40) |
| Y Axis Stroke | ±70 mm |
| CNC Control | Siemens 840D sl (INDEX iXpanel) |
| Rapid Traverse Rate | 35 m/min (X, Z), 24 m/min (Y) |
| Machine Weight | 11,000 kg (24,251 lb) |
| Floor Space | 4.2 m × 2.8 m |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- B-axis milling spindle to 10,000 RPM with a −10° to +210° range
- 16-station VDI 40 turret alongside the milling spindle
- Y-axis stroke of ±70 mm for off-centre features
- Main and counter spindle both to 5,500 RPM
Limitations
- Maximum turning diameter is listed at 120 mm (4.72 in), small for a machine of 11,000 kg (24,251 lb)
- Bar capacity is 65 mm (2.559 in)
- The listed figures include no spindle power or torque, so cutting capacity cannot be judged from the table
Best For
Frequently Asked Questions
01
The listed range is −10° to +210°, carrying a milling spindle that runs to 10,000 RPM. The C200 is listed with −10° to +190°, so the C400 reaches further past the vertical for undercuts and angled holes.
02
The listed figures give 65 mm (2.559 in) bar capacity, a 120 mm (4.72 in) maximum turning diameter and 600 mm (23.62 in) of turning length. Confirm these with INDEX before quoting work near any of them.
03
The C600 is listed with an 18-station VDI 50 turret, ±90 mm of Y and an 8,000 RPM milling spindle. The C400 has a 16-station VDI 40 turret, ±70 mm of Y and a faster 10,000 RPM milling spindle.
04
The listed weight is 11,000 kg (24,251 lb) and the floor space 4.2 m × 2.8 m. Rapid traverse is 35 m/min on X and Z and 24 m/min on Y. Confirm foundation and electrical requirements, which the table does not give.
Community Discussions
Comparison and buying advice
Links to community discussions. Summaries are editorial — visit the original thread for full context.
More from INDEX-Traub
Other Mill-Turn / Multi-Tasking Machines
Chiron 831 MT Twin
Mazak INTEGREX i-200H S
PAMA Speedmat VMT
DMG Mori CTX gamma 3000 TC
