DN Solutions Mill-Turn / Multi-Tasking Machines

DN Solutions SMX 5100 XL

Est. $750,000 - $1,100,000 Specs verified 2026-10-02 · dn-solutions.com Updated 2026-10-02

Image: dn-solutions.com, DN Solutions

Key Specifications

Max Spindle

2,400 rpm

Spindle Power

37 kW (50 hp)

Max Turn Length

4,070 mm (160 in)

chuck size

15 in

max turning diameter

830 mm (33 in)

spindle torque

1,643 N·m (1,212 ft-lb)

How much does the DN Solutions SMX 5100 XL cost?

Estimated price range

Est.$750,000 - $1,100,000

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

At 4,070 mm (160 in) of turning length, the DN Solutions SMX 5100 XL is the extra-long machine of the SMX 5100 line. Maximum turning diameter is 830 mm (33 in), the chuck is 15 in, and the spindle is listed at 2,400 rpm, 37 kW (50 hp) and 1,643 N·m (1,212 ft-lb).

The spindle is the one from the SMX 5100 L, which turns 3,050 mm (120 in). What the XL changes is the bed, and the bed changes the building. The footprint is 10,749 × 3,597 × 3,398 mm (423 × 142 × 134 in) and the machine weighs 37,000 kg (81,571 lb), where the SMX 5100 L weighs 31,000 kg (68,343 lb). Width is 3,597 mm (142 in) on both, so the bay has to be longer, not deeper.

Parts that use this length are long shafts, rolls and tubes, and their own weight and stiffness become the limiting factors. A workpiece near 4,070 mm (160 in) will sag and vibrate unless it is supported, yet DN's table for this model has no tailstock, steady rest or sub-spindle rows. Ask DN what support is fitted or offered, and what part weight the machine accepts, before judging whether a job fits.

For torque-limited work there is the SMX 5100 XLB, which keeps the 4,070 mm (160 in) length and moves to a 21 in chuck with 4,200 N·m (3,098 ft-lb) at 1,500 rpm. The XL's 2,400 rpm is the better match for long parts of moderate diameter. Series features include an orthogonal structure, B-axis and C-axis control to 0.0001 degree, and an operation panel that travels side to side, which earns its place on a machine more than ten metres long.

Full Specifications

Parameter	Value
Chuck Size	15 in
Max Turning Diameter	830 mm (33 in)
Max Turning Length	4,070 mm (160 in)
Max Spindle Speed	2,400 rpm
Spindle Motor Power	37 kW (50 hp)
Spindle Torque	1,643 N·m (1,212 ft-lb)
Floor Space Required	10,749 × 3,597 × 3,398 mm (423 × 142 × 134 in)
Machine Weight	37,000 kg (81,571 lb)

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

Strengths & Limitations

Strengths

4,070 mm (160 in) turning length, against 3,050 mm (120 in) on the SMX 5100 L
830 mm (33 in) maximum turning diameter with a 15 in chuck
2,400 rpm spindle with 37 kW (50 hp) and 1,643 N·m (1,212 ft-lb), faster than the 1,500 rpm SMX 5100 XLB
Machine width stays at 3,597 mm (142 in), the same as the shorter SMX 5100 L
Side-to-side movable, swivelling operation panel described for the series, so the controls can follow the work along the bed

Limitations

Needs a 10,749 mm (423 in) long installation space and carries a machine weight of 37,000 kg (81,571 lb)
No sub-spindle, tailstock or steady rest rows in DN's table, although long parts depend on support
Torque is 1,643 N·m (1,212 ft-lb); the SMX 5100 XLB lists 4,200 N·m (3,098 ft-lb) for heavy large-diameter cuts
Milling spindle and tool magazine figures are not given for this model

Best For

Long shafts, rolls and tubes up to 4,070 mm (160 in) Long parts of moderate diameter that benefit from 2,400 rpm One-setup turning and milling of long components that are hard to re-fixture accurately Shops with the bay length for a 10,749 mm (423 in) machine

Frequently Asked Questions

01 How long a part does the SMX 5100 XL accept?

The maximum turning length is 4,070 mm (160 in) and the maximum turning diameter 830 mm (33 in). The SMX 5100 L, with the same spindle, is limited to 3,050 mm (120 in). Maximum workpiece weight is not in DN's table and is the figure to ask for when the parts are long and solid.

02 How does the SMX 5100 XL compare with the SMX 5100 XLB?

Same bed, different spindle. The SMX 5100 XL has a 15 in chuck, 2,400 rpm and 1,643 N·m (1,212 ft-lb). The SMX 5100 XLB has a 21 in chuck, 1,500 rpm and 4,200 N·m (3,098 ft-lb), and weighs 39,000 kg (85,980 lb) against 37,000 kg (81,571 lb) for the XL. Both are rated 37 kW (50 hp) and share the 10,749 × 3,597 × 3,398 mm (423 × 142 × 134 in) footprint.

03 How are long workpieces supported on the SMX 5100 XL?

DN's comparison table does not say. It lists no tailstock, steady rest or sub-spindle for this model. A part approaching 4,070 mm (160 in) needs support to hold tolerance, so make the support arrangement, and the diameters it can clamp, part of the quotation request.

04 How much space does an SMX 5100 XL need?

The footprint is 10,749 × 3,597 × 3,398 mm (423 × 142 × 134 in), with 3,398 mm (134 in) as the height. The machine weighs 37,000 kg (81,571 lb). In practice the bay must also allow a 4,070 mm (160 in) part to be lifted in and turned end for end, so plan crane coverage along the whole front.

05 Is the spindle of the SMX 5100 XL different from the shorter SMX 5100 L?

No. Both list a 15 in chuck, 2,400 rpm, 37 kW (50 hp) and 1,643 N·m (1,212 ft-lb). The difference between the two machines is the turning length, 4,070 mm (160 in) against 3,050 mm (120 in) for the SMX 5100 L, and the footprint and weight that follow from it.