INDEX R300

Est. $800,000 – $1,200,000 Specs verified 2026-10-03 · index-group.com Updated 2026-10-03

Image: index-group.com, INDEX-Traub

Key Specifications

X Travel

780 mm

Max Spindle

3,500 rpm

Tool Capacity

70 (140) tools

Rapid Traverse

30 m/min (1,181 ipm)

Spindle Power

47 / 52 kW (100%/40% duty)

number of spindles

How much does the INDEX R300 cost?

Estimated price range

Est.$800,000 – $1,200,000

Our best estimate for a multi-spindle automatic in this class — not a quote from INDEX-Traub. Configuration moves it a long way.

Overview

The INDEX R300 is a large turn-mill center for bar up to 102 mm (4 in) and chuck work on a 315 mm (12.4 in) chuck, with a maximum turning diameter of 300 mm (11.8 in). The main spindle runs to 3,500 rpm and is rated 47 / 52 kW (100%/40% duty) with 450 / 690 Nm, which puts it among machines for heavy stock: flanges, hubs and shafts from big bar.

Milling is done by a 12,000 RPM milling spindle on HSK-T63 tooling, with PSC-63 as an option. The live tool drive is listed at 24.5 kW (25% duty) and 66 / 95 Nm (100%/25% duty), enough for real milling cuts rather than only cross drilling. X travel is 780 mm. The magazine is listed as 70 (140) tools and accepts tools up to 300 mm (11.8 in) long and 5 kg (11 lb) in weight, with a tool-to-tool time of 6 s.

A counter spindle running to 5,000 RPM takes the part over for second-side work in the same cycle. Rapid traverse is 30 m/min (1,181 ipm), and the control is Siemens S840D sl.

The machine weighs approx. 18,500 kg (40,785 lb) and the power supply is listed at 114 kW, so crane access, foundation and the electrical feed all need planning before delivery. Ask INDEX for the Z travel and the magazine version behind the larger tool count, as the table does not state them.

Full Specifications

Parameter	Value
Number of Spindles	6
Max Part Length	90 mm
Spindle Speed Each	up to 8,000 rpm
Total Installed Power	approx. 60 kW
Cross Slides per Position	1 (+ optional vertical slide)
Live Tool Positions	up to 2 positions standard
Spindle Torque Max	690 Nm
Tool Change (tool-to-tool)	6 s
X-Axis Travel	780 mm
Counter Spindle Speed	5,000 RPM
Milling Spindle Speed	12,000 RPM
Max Turning Diameter	300 mm (11.8 in)
Tool Turret Stations	12 (live tooling)
Live Tool Speed	9,000 rpm
Rapid Traverse Rate	30 m/min (1,181 ipm)
CNC Control	Siemens S840D sl
Machine Weight	approx. 18,500 kg (40,785 lb)
Max Bar Capacity	102 mm (4 in)
Chuck Size	315 mm (12.4 in)
Max Spindle Speed	3,500 rpm
Spindle Motor Power	47 / 52 kW (100%/40% duty)
Spindle Torque	450 / 690 Nm (100%/40% duty)
Tooling System	HSK-T63 (optional PSC-63)
Live Tool Power	24.5 kW (25% duty)
Live Tool Torque	66 / 95 Nm (100%/25% duty)
Max Tool Length	300 mm (11.8 in)
Max Tool Diameter (full magazine)	70 (160 with constraints)
Max Tool Weight	5 kg (11 lb)
Tool Capacity	70 (140) tools
Power Supply	114 kW

Specifications sourced from index-group.com — verified 2026-10-03

Strengths & Limitations

Strengths

Main spindle rated 47 / 52 kW (100%/40% duty) and 450 / 690 Nm for heavy turning
Bar capacity of 102 mm (4 in), a 315 mm (12.4 in) chuck and 300 mm (11.8 in) turning diameter
12,000 RPM milling spindle on HSK-T63 tooling, with PSC-63 available as an option
Magazine for 70 (140) tools, taking tools up to 300 mm (11.8 in) long
780 mm of X travel and 30 m/min (1,181 ipm) rapids
Counter spindle at 5,000 RPM for second-side machining in the same cycle

Limitations

Main spindle tops out at 3,500 rpm, slow for small diameters and non-ferrous work
Tool-to-tool time is 6 s, so parts with many short tool changes lose time at the magazine
Tools are limited to 5 kg (11 lb) each, which rules out heavy boring bars
Needs a 114 kW power supply and a foundation for approx. 18,500 kg (40,785 lb)

Best For

Large flanges, hubs and housings up to 300 mm (11.8 in) diameter Heavy bar work up to 102 mm (4 in) Complete machining of turned parts that need substantial milling Parts that need long tools up to 300 mm (11.8 in)

Frequently Asked Questions

01 How big a part can the R300 turn?

The maximum turning diameter is 300 mm (11.8 in), with a 315 mm (12.4 in) chuck and bar capacity up to 102 mm (4 in). X travel is 780 mm. The table does not give Z travel, so check part length against INDEX's layout drawings.

02 What milling capability does the R300 have?

A milling spindle runs to 12,000 RPM on HSK-T63 tooling, with PSC-63 as an option. The live tool drive is listed at 24.5 kW (25% duty) and 66 / 95 Nm (100%/25% duty). A turret listed as 12 (live tooling) is also part of the table, with a live tool speed of 9,000 rpm.

03 How many tools does the R300 hold?

The magazine is listed as 70 (140) tools. Tools can be up to 300 mm (11.8 in) long and 5 kg (11 lb) in weight, and tool-to-tool change takes 6 s. Ask INDEX which magazine version the larger figure refers to.

04 What does the R300 need for installation?

The table lists a 114 kW power supply and a machine weight of approx. 18,500 kg (40,785 lb). Plan crane access, the foundation and the electrical feed before delivery. The control is Siemens S840D sl.