DN Solutions Mill-Turn / Multi-Tasking Machines

DN Solutions SMX 2100 S

Est. $270,000 - $380,000 Specs verified 2026-10-02 · dn-solutions.com Updated 2026-10-02

Image: dn-solutions.com, DN Solutions

Key Specifications

Max Spindle

5,000 rpm

Spindle Power

22 kW (29 hp)

Max Turn Length

1,040 mm (41 in)

chuck size

8 in

max turning diameter

600 mm (24 in)

spindle torque

467 N·m (344 ft-lb)

How much does the DN Solutions SMX 2100 S cost?

Estimated price range

Est.$270,000 - $380,000

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 2100 S is the short-bed SMX 2100 with a second spindle that matches the first. Both are rated 5,000 rpm, 22 kW (29 hp) and 467 N·m (344 ft-lb). The chuck is 8 in, maximum turning diameter 600 mm (24 in) and maximum turning length 1,040 mm (41 in).

This is the configuration for chucking parts and short shafts that have work on both faces. The first spindle holds the blank for turning and for milling with the B-axis head; the part is then passed to the second spindle and the back is finished without a second setup. Because the second spindle has the same torque as the first, the split between the two sides can be decided by the part and the cycle time, not by which spindle is strong enough.

The second spindle adds little bulk. The SMX 2100 weighs 14,900 kg (32,849 lb) and the S weighs 15,200 kg (33,510 lb), about 2% more, and the S measures 4,845 × 2,770 × 2,777 mm (191 × 109 × 109 in) as length, width and height.

Two siblings mark the limits of this model. For shafts beyond 1,040 mm (41 in), the SMX 2100 L has 1,540 mm of turning length. For heavier cutting, the SMX 2600 S has a 10 in chuck with 30 kW (40 hp) and 724 N·m (534 ft-lb) at 4,000 rpm, and 660 mm (26 in) of turning diameter.

DN Solutions' series description lists B-axis and C-axis control in 0.0001-degree steps and thermal compensation backed by cooling of the spindle and feed axes. It gives no accuracy figures, and the table for the S has no milling-spindle, magazine or travel rows, so ask for those with the quotation.

Full Specifications

Parameter	Value
Chuck Size	8 in
Max Turning Diameter	600 mm (24 in)
Max Turning Length	1,040 mm (41 in)
Max Spindle Speed	5,000 rpm
Spindle Motor Power	22 kW (29 hp)
Spindle Torque	467 N·m (344 ft-lb)
Sub Spindle Speed	5,000 rpm
Sub Spindle Power	22 kW (29 hp)
Sub Spindle Torque	467 N·m (344 ft-lb)
Floor Space Required	4,845 × 2,770 × 2,777 mm (191 × 109 × 109 in)
Machine Weight	15,200 kg (33,510 lb)

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

Strengths & Limitations

Strengths

Second spindle matches the main spindle: 5,000 rpm, 22 kW (29 hp) and 467 N·m (344 ft-lb) on each
Front and back of a part are machined in one cycle within a 600 mm (24 in) by 1,040 mm (41 in) envelope
Only about 2% heavier than the SMX 2100: 15,200 kg (33,510 lb) against 14,900 kg (32,849 lb)
Short-bed dimensions of 4,845 × 2,770 mm (191 × 109 in) on the floor
Series description includes thermal compensation with spindle and feed-axis cooling

Limitations

Turning length is 1,040 mm (41 in); the SMX 2100 L reaches 1,540 mm
8 in chuck and 22 kW (29 hp) per spindle; the SMX 2600 S has a 10 in chuck, 30 kW (40 hp) and 724 N·m (534 ft-lb)
No accuracy figures are published in the table or the series description
Milling-spindle, tool-magazine and axis-travel figures are missing from the table for this model

Best For

Flanges, hubs and housings with turning and milling on both faces Short shafts within 1,040 mm (41 in) completed across two spindles Parts whose second side needs full 467 N·m (344 ft-lb) roughing Small-diameter work that uses 5,000 rpm on both spindles

Frequently Asked Questions

01 What does the second spindle on the SMX 2100 S offer?

The same rating as the main spindle: 5,000 rpm, 22 kW (29 hp) and 467 N·m (344 ft-lb). A part can be transferred and machined on its back face at the same cutting data, so heavy cuts do not all have to be done before the hand-off.

02 How does the SMX 2100 S compare to the SMX 2100?

The chuck size, turning diameter, turning length and main-spindle figures are the same: 8 in, 600 mm (24 in), 1,040 mm (41 in), and 5,000 rpm with 467 N·m (344 ft-lb). The SMX 2100 S has second-spindle rows in its table and weighs 15,200 kg (33,510 lb); the SMX 2100 weighs 14,900 kg (32,849 lb).

03 Can the SMX 2100 S handle long shafts?

Up to its maximum turning length of 1,040 mm (41 in). Beyond that, the SMX 2100 L and the SMX 2600 S both have 1,540 mm of turning length. The SMX 2600 S also brings a 10 in chuck and 724 N·m (534 ft-lb).

04 What does DN Solutions say about precision on this series?

The series description lists 0.0001-degree control of the B-axis and C-axis, and thermal compensation supported by cooling of the spindle and feed axes, intended to hold size over long runs. No positioning or repeatability figures are given, so request them if the parts have tight tolerances.