DN Solutions Mill-Turn / Multi-Tasking Machines

DN Solutions SMX 2600 ST

Est. $380,000 - $520,000 Specs verified 2026-10-02 · dn-solutions.com Updated 2026-10-03

Image: dn-solutions.com, DN Solutions

Key Specifications

Y Travel

300±150 mm (11.8±5.9 in)

Max Spindle

4,000 rpm

Tool Capacity

Spindle Power

30 kW (40 hp)

Max Turn Length

1,540 mm (61 in)

chuck size

10 in

How much does the DN Solutions SMX 2600 ST cost?

Estimated price range

Est.$380,000 - $520,000

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

Overview

The DN Solutions SMX 2600 ST is a two-spindle mill-turn machine sized around a 10 in chuck, with a maximum turning diameter of 660 mm (26 in) and a turning length of 1,540 mm (61 in). Both spindles reach 4,000 rpm and both are rated 30 kW (40 hp), so neither end of the part is the weak one. The same machine is also sold under its earlier name, PUMA SMX 2600ST.

Torque is where DN's table shows a small asymmetry. The main spindle is listed at 690 N·m (509 ft-lb) and the sub-spindle at 724 N·m (534 ft-lb). The SMX 2600 and SMX 2600 S both give 724 N·m (534 ft-lb) for the main spindle, so the ST's main-spindle figure is about 5% lower than that of its siblings. Anyone planning heavy first-operation roughing should work from 690 N·m (509 ft-lb) and not assume the family figure.

DN's table stops at the turning spindles, the envelope and the size of the machine. A distributor's specification sheet for the same model supplies the rest. It lists the milling spindle at 12,000 rpm, 26 kW (35 hp) and 124 N·m (91 ft-lb), on a B-axis that swings 240° (±120°), with an 80-tool magazine taking tools up to 450 mm (17.7 in) long. The milling head travels 695 mm (27.4 in) in X1, 1,585 mm (62.4 in) in Z1 and 300±150 mm (11.8±5.9 in) in Y. Below it sits a 12-station lower turret on BMT-65 shanks, with 235 mm (9.3 in) of X2 and 1,540 mm (60.6 in) of Z2 travel. Its driven tools are listed at 5,000 rpm, 7 kW (9.4 hp) and 27 N·m (20 ft-lb): enough for drilling and light milling, while heavier milling belongs on the B-axis spindle.

The ST is also the heavy member of the family. It weighs 18,000 kg (39,683 lb), against 15,800 kg (34,833 lb) for the SMX 2600 and 16,200 kg (35,715 lb) for the SMX 2600 S, and its footprint is 5,790 × 3,021 × 2,820 mm (228 × 119 × 111 in), the last figure being the height. For larger chucking work the SMX 3100 takes a 12 in chuck and raises main-spindle torque to 1,203 N·m (887 ft-lb) at a 3,000 rpm limit, on the same 660 mm (26 in) by 1,540 mm (61 in) envelope.

Full Specifications

Parameter	Value
Chuck Size	10 in
Max Turning Diameter	660 mm (26 in)
Max Turning Length	1,540 mm (61 in)
Max Spindle Speed	4,000 rpm
Spindle Motor Power	30 kW (40 hp)
Spindle Torque	690 N·m (509 ft-lb)
Sub Spindle Speed	4,000 rpm
Sub Spindle Power	30 kW (40 hp)
Sub Spindle Torque	724 N·m (534 ft-lb)
Floor Space Required	5,790 × 3,021 × 2,820 mm (228 × 119 × 111 in)
Machine Weight	18,000 kg (39,683 lb)
Travel X1^†	695 mm (27.4 in)
Travel X2^†	235 mm (9.3 in)
Y-Axis Travel^†	300±150 mm (11.8±5.9 in)
Travel Z1^†	1,585 mm (62.4 in)
Travel Z2^†	1,540 mm (60.6 in)
B Axis Range^†	240° (±120°)
Rapid Traverse X1^†	48 m/min (1,889 in/min)
Rapid Traverse Y^†	36 m/min (1,417 in/min)
Rapid Traverse Z1^†	48 m/min (1,889 in/min)
Spindle Bore^†	82 mm (3.2 in)
Sub Spindle Bore^†	80 mm (3.15 in)
Milling Spindle Speed^†	12,000 rpm
Milling Spindle Power^†	26 kW (35 hp)
Milling Spindle Torque^†	124 N·m (91 ft-lb)
Tool Capacity^†	80
Milling Tool Diameter Max^†	90/130 mm (3.5/5.1 in)
Milling Tool Length Max^†	450 mm (17.7 in)
Tool Change Time^†	1.8 s
Lower Turret Stations^†	12
Lower Turret Boring Bar Diameter^†	40 mm (1.5 in)
Lower Turret Rotary Tool Speed^†	5,000 rpm
Lower Turret Rotary Tool Power^†	7 kW (9.4 hp)
Lower Turret Rotary Tool Torque^†	27 N·m (20 ft-lb)
Lower Turret Shank^†	BMT-65

† Not in the manufacturer's table: read from ellisontechnologies.com (authorised dealer / distributor) — verified 2026-10-03

Specifications sourced from dn-solutions.com — verified 2026-10-02

Strengths & Limitations

Strengths

Both spindles run to 4,000 rpm on 30 kW (40 hp), so first and second operations can be cut with the same speeds
Sub-spindle torque of 724 N·m (534 ft-lb) is slightly above the 690 N·m (509 ft-lb) of the main spindle, so back-end work is not the torque-limited side
Milling spindle listed at 12,000 rpm, 26 kW (35 hp) and 124 N·m (91 ft-lb), on a B-axis with 240° (±120°) of swing
12-station lower turret with driven tools at 5,000 rpm and 7 kW (9.4 hp), so turning and drilling tools stay set up while the milling head works
80-tool magazine taking tools up to 450 mm (17.7 in) long, with a listed tool change time of 1.8 s
B-axis and C-axis with 0.0001-degree control in DN's series description, for angled milling and drilling features

Limitations

Main spindle torque is 690 N·m (509 ft-lb), below the 724 N·m (534 ft-lb) DN lists for the SMX 2600 and SMX 2600 S
The 10 in chuck and 690 N·m (509 ft-lb) are light for large-diameter roughing; the SMX 3100 offers a 12 in chuck and 1,203 N·m (887 ft-lb)
At 18,000 kg (39,683 lb) it is the heaviest SMX 2600 variant, so check foundation and rigging against that figure and not the 15,800 kg (34,833 lb) of the SMX 2600
Travels, milling spindle, magazine and lower turret figures are not in DN's own table; they come from a distributor's sheet, so have them confirmed on the quotation
Lower-turret driven tools are limited to 5,000 rpm and 27 N·m (20 ft-lb), so heavier milling has to go through the B-axis spindle

Best For

Shafts and flanged parts up to 660 mm (26 in) in diameter finished on both ends in one setup Small-diameter turning that benefits from 4,000 rpm on either spindle Turned parts with angled milled or drilled features that need the B-axis and C-axis Parts within a 1,540 mm (61 in) turning length Jobs with long tool lists, drawing on the 80-tool magazine and the 12-station lower turret

Frequently Asked Questions

01 How do the two spindles of the SMX 2600 ST compare?

Both run to 4,000 rpm and both are rated 30 kW (40 hp). DN lists the main spindle at 690 N·m (509 ft-lb) and the sub-spindle at 724 N·m (534 ft-lb). With speed and power matched, a part can be transferred and finished on the second spindle with the same cutting data it was started with.

02 What size of part does the SMX 2600 ST take?

The chuck is 10 in, the maximum turning diameter is 660 mm (26 in) and the maximum turning length is 1,540 mm (61 in). The through holes are listed at 82 mm (3.2 in) on the main spindle and 80 mm (3.15 in) on the sub-spindle, so bar sized to the limit of the first will not pass through the second.

03 What milling capacity does the SMX 2600 ST have?

The milling spindle is listed at 12,000 rpm, 26 kW (35 hp) and 124 N·m (91 ft-lb), on a B-axis with 240° (±120°) of swing and 300±150 mm (11.8±5.9 in) of Y travel. The magazine holds 80 tools, with a maximum tool length of 450 mm (17.7 in) and a maximum tool diameter given as 90/130 mm (3.5/5.1 in). These figures come from a distributor's sheet and are not in DN's own table.

04 How is the SMX 2600 ST different from the SMX 2600 S?

DN's table shows the same chuck size, turning envelope, speeds and power for both, and a 724 N·m (534 ft-lb) sub-spindle on each. The differences it lists are the ST's 690 N·m (509 ft-lb) main spindle against 724 N·m (534 ft-lb) on the SMX 2600 S, and weight: 18,000 kg (39,683 lb) against 16,200 kg (35,715 lb) for the SMX 2600 S. A distributor's sheet for the ST also lists a 12-station lower turret with BMT-65 shanks, 235 mm (9.3 in) of X2 travel and 1,540 mm (60.6 in) of Z2 travel. DN's table has no turret row for either model, so confirm what the SMX 2600 S carries before choosing between them.

05 How much floor space and weight should I plan for?

DN lists a footprint of 5,790 × 3,021 × 2,820 mm (228 × 119 × 111 in), where 2,820 mm (111 in) is the height, and a machine weight of 18,000 kg (39,683 lb). The footprint is the machine alone, so leave room around it for chip handling, access to the front tool magazine and maintenance.

06 Should I choose the SMX 2600 ST or the SMX 3100?

Choose on diameter and torque. The SMX 3100 has a 12 in chuck, a 3,000 rpm limit and 1,203 N·m (887 ft-lb), with the same 660 mm (26 in) turning diameter and 1,540 mm (61 in) length. The SMX 2600 ST has a 10 in chuck, 4,000 rpm and 690 N·m (509 ft-lb) on the main spindle, plus a sub-spindle at 724 N·m (534 ft-lb).