DN Solutions Mill-Turn / Multi-Tasking Machines

DN Solutions DNX 2100 SB

Est. $250,000 - $350,000 Specs verified 2026-10-02 · dn-solutions.com Updated 2026-10-02

Image: dn-solutions.com, DN Solutions

Key Specifications

Max Spindle

4,000 rpm

Spindle Power

22/15 kW (30/20 hp)

Max Turn Length

1,100 mm (43 in)

chuck size

255 mm (10 in)

max turning diameter

520 mm (21 in)

spindle torque

456 N-m (336 ft-lb)

How much does the DN Solutions DNX 2100 SB cost?

Estimated price range

Est.$250,000 - $350,000

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

On the DN Solutions DNX 2100 SB the two spindles are deliberately unequal. The main spindle carries a 255 mm (10 in) chuck and is rated 4,000 rpm, 22/15 kW (30/20 hp) and 456 N·m (336 ft-lb); the second spindle runs to 5,000 rpm with 18.5/15 kW (25/20 hp) and 326 N·m (240 ft-lb). Maximum turning diameter is 520 mm (21 in) and maximum turning length 1,100 mm (43 in).

That split follows the usual order of work. Heavy stock removal happens on the first side, where the larger chuck grips the raw blank and the higher torque is available. By the time the part reaches the second spindle most of the material is gone, and a faster, lighter spindle is enough for back-facing, boring and finishing. If the back of your parts needs as much torque as the front, check the 326 N·m (240 ft-lb) figure against the heaviest second-operation cut before ordering.

Two siblings bracket it. The DNX 2100 B lists the same main spindle and weighs 10,650 kg (23,479 lb), against 11,000 kg (24,251 lb) for the SB. The DNX 2100 S has the 210 mm (8 in) chuck and 326 N·m (240 ft-lb) on its main spindle at 5,000 rpm, so it is the pick when speed on bar work matters more than grip on larger blanks. The turning envelope does not change between them.

DN Solutions' description of the series covers a B-axis milling spindle with 0.0001° positioning, a built-in main spindle as standard, DSSV spindle speed variation, an alarm recovery function and a chuck position sensor meant to shorten chuck changes. A tool breakage detector in the magazine, an arm-type tool setter and a parts catcher are options. The machine is 4,615 mm (182 in) long, 2,285 mm (90 in) wide and 2,630 mm (104 in) high.

Full Specifications

Parameter	Value
Chuck Size	255 mm (10 in)
Max Turning Diameter	520 mm (21 in)
Max Turning Length	1,100 mm (43 in)
Max Spindle Speed	4,000 rpm
Spindle Motor Power	22/15 kW (30/20 hp)
Spindle Torque	456 N-m (336 ft-lb)
Sub Spindle Speed	5,000 rpm
Sub Spindle Power	18.5/15 kW (25/20 hp)
Sub Spindle Torque	326 N-m (240 ft-lb)
Floor Space Required	4,615 × 2,285 × 2,630 mm (182 × 90 × 104 in)
Machine Weight	11,000 kg (24,251 lb)

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

Strengths & Limitations

Strengths

456 N·m (336 ft-lb) and 22/15 kW (30/20 hp) at the main spindle, on a 255 mm (10 in) chuck
Second spindle runs to 5,000 rpm with 18.5/15 kW (25/20 hp) and 326 N·m (240 ft-lb) for back-side work
Same 520 mm (21 in) turning diameter and 1,100 mm (43 in) turning length as the DNX 2100 S, with about 40% more main-spindle torque
Built-in spindle and DSSV spindle speed variation are standard across the series
A chuck position sensor is included to shorten chuck changes, per DN Solutions' series description

Limitations

Main spindle tops out at 4,000 rpm, against 5,000 rpm on the DNX 2100 S, which limits surface speed on small diameters
The second spindle has 326 N·m (240 ft-lb), less than the main spindle's 456 N·m (336 ft-lb), so heavy cuts belong on the first side
Parts catcher, arm-type tool setter and in-magazine tool breakage detection are options
No milling-spindle speed, magazine capacity or axis travel is given in the table for this model

Best For

Larger blanks gripped in a 255 mm (10 in) chuck and roughed at 456 N·m (336 ft-lb) Two-operation parts whose second side is lighter finishing work at up to 5,000 rpm Shaft-type parts up to 1,100 mm (43 in) long with milled features Work up to 520 mm (21 in) in turning diameter that needs a B-axis milling spindle

Frequently Asked Questions

01 Are the two spindles of the DNX 2100 SB the same?

No. The main spindle has a 255 mm (10 in) chuck and is rated 4,000 rpm, 22/15 kW (30/20 hp) and 456 N·m (336 ft-lb). The second spindle is rated 5,000 rpm, 18.5/15 kW (25/20 hp) and 326 N·m (240 ft-lb). The main spindle has about 40% more torque; the second spindle turns 25% faster.

02 What is the difference between the DNX 2100 SB and the DNX 2100 B?

Both list the 255 mm (10 in) chuck and the 4,000 rpm, 456 N·m (336 ft-lb) main spindle. The DNX 2100 SB adds second-spindle figures to its table, 5,000 rpm and 326 N·m (240 ft-lb), and weighs 11,000 kg (24,251 lb) against 10,650 kg (23,479 lb) for the DNX 2100 B.

03 When would the DNX 2100 S be the better choice?

When the work is smaller in diameter and benefits from speed. The DNX 2100 S has a 210 mm (8 in) chuck and a 5,000 rpm main spindle with 326 N·m (240 ft-lb), identical to its second spindle. The DNX 2100 SB gives up that speed at the main spindle for 4,000 rpm and 456 N·m (336 ft-lb).

04 What are the dimensions and weight of the DNX 2100 SB?

It measures 4,615 × 2,285 × 2,630 mm (182 × 90 × 104 in) as length, width and height and weighs 11,000 kg (24,251 lb). Check the floor loading and the route into the building against those figures before delivery.