Stama Mill-Turn / Multi-Tasking Machines

Stama MT 733 Twin

Est. $700,000 - $1,100,000 Possible older model Updated 2026-10-03

This model was not found in Stama's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.

Key Specifications

Tool Capacity

2 x 24 (48 total) + turret

Rapid Traverse

40 m/min (1,575 ipm)

spindle count

2 (twin main spindles)

chuck diameter

210 mm (8.3 in)

spindle speed turning

5,500 RPM (main spindle)

b axis swivel

±115°

How much does the Stama MT 733 Twin cost?

Estimated price range

Est.$700,000 - $1,100,000

Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from Stama. Configuration moves it a long way.

Overview

The Stama MT 733 Twin is listed as a twin-spindle mill-turn machine: two main spindles with 210 mm (8.3 in) chucks turning at up to 5,500 RPM, worked by two milling spindles of 18 kW (24.1 hp) each that reach 18,000 RPM on HSK-A50. Stama's current lineup does not include this model, and the table is not confirmed by the maker. These are the listed figures.

Turning capacity is 320 mm (12.6 in) in diameter and 500 mm (19.7 in) in length. A bar capacity of 65 mm (2.6 in) is listed as optional, so a given machine may be set up for chuck work only. Check for the bar option if the plan is to run from stock.

The milling spindles swivel on a B axis through ±115°, which reaches both end faces of a part and the angled features between them. Tooling is listed as 24 tools per milling spindle, 48 in total, plus a turret. The table does not say how many stations the turret has or whether they are driven.

Rapids are 40 m/min (1,575 ipm). Unlike the MC 531/Mill-Turn, which is listed with a turning mode capped at 1,200 RPM, the MT 733 turns at up to 5,500 RPM, so it is the choice where turning is the main operation and milling completes the part. No axis travels, torque, weight or accuracy rows are listed, and those gaps need filling from the machine's own documents before a job is planned around it.

Full Specifications

Parameter	Value
Spindle Count	2 (twin main spindles)
Chuck Diameter	210 mm (8.3 in)
Spindle Speed Turning	5,500 RPM (main spindle)
B Axis Swivel	±115°
Milling Spindle Speed Max	18,000 RPM
Milling Spindle Taper	HSK-A50
Milling Spindle Power	2 x 18 kW (2 x 24.1 hp)
Turning Diameter Max	320 mm (12.6 in)
Turning Length Max	500 mm (19.7 in)
Rapid Traverse Rate	40 m/min (1,575 ipm)
Tool Capacity	2 x 24 (48 total) + turret
Bar Capacity	65 mm (2.6 in) optional
CNC Control	Siemens Sinumerik 840D sl

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

Two main spindles with 210 mm (8.3 in) chucks at up to 5,500 RPM
Two 18,000 RPM HSK-A50 milling spindles of 18 kW (24.1 hp) each
B axis swivel of ±115° on the milling spindles
Turning capacity of 320 mm (12.6 in) diameter by 500 mm (19.7 in) length
24 tools per milling spindle, 48 in total, plus a turret

Limitations

Bar capacity of 65 mm (2.6 in) is an option, not standard
Rapid traverse is 40 m/min (1,575 ipm), lower than the 60 m/min (2,362 ipm) listed for the MC 531/Mill-Turn
No axis travels, torque, weight or accuracy figures are listed
The turret is mentioned without a station count

Best For

Turned parts up to 320 mm (12.6 in) in diameter that also need milled features Shaft-type parts up to 500 mm (19.7 in) long Twin-spindle production of identical parts in volume Bar-fed work up to 65 mm (2.6 in) when the bar option is fitted

Frequently Asked Questions

01 What turning capacity does the MT 733 Twin have?

The listed figures give a maximum turning diameter of 320 mm (12.6 in), a maximum turning length of 500 mm (19.7 in) and a chuck diameter of 210 mm (8.3 in). The main spindles turn at up to 5,500 RPM.

02 Can the MT 733 Twin run from bar stock?

Only with the option. Bar capacity is listed as 65 mm (2.6 in) and marked optional, so it depends on how the machine was configured. Without it the machine is a chucking machine with 210 mm (8.3 in) chucks.

03 What milling spindles are fitted to the MT 733 Twin?

Two milling spindles are listed, each 18 kW (24.1 hp), with a maximum speed of 18,000 RPM and an HSK-A50 taper. They swivel on a B axis through ±115°. No torque figure appears in the table.

04 How many tools does the MT 733 Twin hold?

The tool capacity row reads 2 x 24, 48 in total, plus a turret. The magazines serve the two milling spindles. The table gives no station count for the turret, so that has to be confirmed on the machine.