DN Solutions SMX 5100 XL

$750,000 - $1,100,000 Updated 2026-03-19

Key Specifications

Max Turn Length

4070 mm

chuck size

15 inch

max turning diameter

830 mm

main spindle speed

2,400 RPM

main spindle power

37 kW (50 hp) / 1,643 Nm (1,212 ft-lbs)

machine length

10,749 mm (423.2 in)

Overview

The DN Solutions SMX 5100 XL is the extended-length variant of the SMX 5100 platform, built for shops that need serious multi-tasking capability on long, heavy workpieces. With a 15-inch chuck and over 4 meters of turning length, this machine tackles shaft work, landing gear components, and large oil and gas parts that smaller mill-turn platforms simply can't reach.

The main spindle puts out 37 kW (50 hp) at 2,400 RPM with a substantial 1,643 Nm (1,212 ft-lbs) of torque through that 15-inch chuck. That's the kind of grunt you need for roughing large-diameter steel and stainless parts without bogging down. The B-axis milling spindle provides full angular milling access, bringing machining center capability to a turning platform that handles parts up to 830 mm (32.7 in) diameter and 4,070 mm (160.2 in) in length.

At 37,000 kg (81,571 lb), the SMX 5100 XL is a serious piece of iron. The machine footprint stretches 10,749 mm long by 3,597 mm wide by 3,398 mm tall, so you'll need significant floor space and rigging capability to get it installed. That mass translates directly to vibration damping and rigidity during heavy cuts on long workpieces where chatter would otherwise be a constant battle.

The XL designation adds roughly 1,000 mm of Z-axis travel over the standard SMX 5100 L, pushing the work envelope to 4,070 mm turning length. This makes it the go-to choice for long shaft work, drill collars, and structural aerospace components. For shops already familiar with the SMX platform's FANUC-based control and Capto tooling system, the 5100 XL extends proven multi-tasking technology into the heavy, long-part space that typically requires dedicated boring mills or engine lathes. Specs sourced from DN Solutions published data.

Full Specifications

Parameter	Value
Chuck Size	15 inch
Max Turning Diameter	830 mm
Max Turning Length	4070 mm
Main Spindle Speed	2,400 RPM
Main Spindle Power	37 kW (50 hp) / 1,643 Nm (1,212 ft-lbs)
Machine Length	10,749 mm (423.2 in)
Machine Width	3,597 mm (141.6 in)
Machine Height	3,398 mm (133.8 in)
Machine Weight	37,000 kg (81,571 lb)
CNC Control	FANUC 31i-B5 with 5-axis simultaneous
Metric	IMPERIAL
Capacity	Chuck sizeMax. Turning DiameterMax. Turning Length
Left Spindle	Max. Spindle SpeedMax. Spindle PowerMax. Spindle Torque
Right Spindle	Max. Spindle SpeedMax. Spindle PowerMax. Spindle Torque
Dimensions	LengthHeightWidthWeight
Favorites	SMX5100XLB

Specifications sourced from dn-solutions.com — verified 2026-03-28

Strengths & Limitations

Strengths

4,070 mm turning length handles long shaft work, landing gear, and drill collars that exceed the reach of most competing mill-turn platforms
37 kW spindle with 1,643 Nm of torque through a 15-inch chuck delivers serious roughing power on large steel and stainless workpieces
37,000 kg machine mass provides outstanding vibration damping for stable heavy cuts on long, slender parts where chatter is a constant concern
Full B-axis milling capability eliminates secondary setups on large parts that would otherwise require a boring mill or machining center after turning
Proven SMX platform with FANUC control means existing SMX shops can scale up to this machine without retraining programmers or operators
Single-setup processing on long parts dramatically reduces accumulated positioning errors from multiple rechucking operations

Limitations

2,400 RPM main spindle speed limits small-diameter finishing operations compared to machines with 3,500+ RPM spindles
37,000 kg weight and 10.7m length require heavy rigging, reinforced foundations, and substantial floor space that many shops can't accommodate
Single-spindle configuration means no back-working without rechucking; shops needing sub-spindle capability must look at the LS variant
Price point north of $750K puts this machine out of reach for most job shops and into dedicated production or contract manufacturing territory

Best For

Oil and gas manufacturers producing long drill collars, downhole tools, and valve assemblies that need turning and milling in a single setup Aerospace shops machining landing gear components, actuator housings, and long structural parts up to 830 mm diameter and 4 meters in length Power generation facilities producing turbine shafts, generator rotors, and other long high-value components requiring multi-axis machining Contract manufacturers handling large one-off and short-run production where eliminating secondary setups justifies the investment Defense contractors producing gun barrels, missile components, and ordnance parts that demand tight tolerances over extended lengths

Frequently Asked Questions

01 What's the difference between the SMX 5100 XL and the SMX 5100 L?

The XL extends the Z-axis turning length to 4,070 mm compared to 3,050 mm on the L variant. The XL is also heavier at 37,000 kg vs 31,000 kg due to the longer bed. Both share the same 15-inch chuck, 37 kW spindle, and 830 mm max turning diameter. Pick the XL when your parts regularly exceed 3 meters in length.

02 What does a DN Solutions SMX 5100 XL cost?

New SMX 5100 XL machines typically fall between $750,000 and $1,100,000 depending on configuration. Options like high-pressure coolant, probing packages, extended tool magazines, and chip conveyors can push the price toward the upper end. Used examples, when available, typically trade in the $400K-$600K range depending on hours and condition.

03 Can the SMX 5100 XL handle heavy interrupted cuts on large forgings?

Yes. The 37,000 kg mass and robust box-way construction provide the rigidity needed for heavy interrupted cutting. The 1,643 Nm of spindle torque handles aggressive roughing on forgings and castings. That said, steady rests are recommended for long slender parts to prevent deflection during heavy cuts.

04 What foundation requirements does the SMX 5100 XL need?

At 37,000 kg, you'll need a reinforced concrete foundation designed to handle the static and dynamic loads. DN Solutions provides detailed foundation drawings, but expect a minimum of 300-400 mm thick reinforced concrete pad. The 10.7m length also means you need adequate overhead crane coverage for rigging and workpiece loading.