DN Solutions DNX 2100 B

$180,000 - $260,000 Updated 2026-03-19

Key Specifications

Max Turn Length

1100 mm

chuck size

255 mm

max turning diameter

520 mm

left spindle speed

4,000 RPM

left spindle power

22 kW (29.5 hp)

left spindle torque

456 Nm (336.3 ft-lb)

Overview

The DN Solutions DNX 2100 B is a single-spindle multitasking turning center with a 10-inch chuck and B-axis milling capability. The B in the name designates the big-bore configuration with a larger chuck and more torque than the standard DNX 2100. If you need to turn and mill parts complete in one chucking without a sub-spindle, this machine delivers that capability with the torque to back it up.

The left spindle runs at 4,000 RPM with 22 kW (29.5 hp) and a substantial 456 Nm (336.3 ft-lb) of torque. That's serious grunt for a 10-inch chuck machine and means you can take heavy roughing cuts on alloy steel, stainless, and tough materials without tiptoeing around the spindle limits. The maximum turning diameter is 520 mm (20.5 in) with a turning length of 1,100 mm (43.3 in), covering a wide range of production work.

The B-axis milling head is what turns this from a lathe into a multitasking machine. Off-center drilling, cross-holes, flats, keyways, and contoured features that would normally require a second operation on a mill can all happen while the part is still chucked. For shops running medium-complexity parts that currently bounce between a lathe and a VMC, the DNX 2100 B consolidates that into one setup and one operator.

The machine weighs 10,650 kg (23,479 lb) and measures 4,615 x 2,285 x 2,630 mm. DN Solutions runs the Fanuc 0i-Plus control with iHMI, which supports both turning and milling programming modes. The DNX 2100 B competes with machines like the Mazak Quick Turn 250MSY, Okuma LB3000 EX II MY, and Haas ST-20Y in the multitasking turning segment, though it offers more torque than most of those at the 10-inch chuck size.

Full Specifications

Parameter	Value
Chuck Size	255 mm
Max Turning Diameter	520 mm
Max Turning Length	1100 mm
Left Spindle Speed	4,000 RPM
Left Spindle Power	22 kW (29.5 hp)
Left Spindle Torque	456 Nm (336.3 ft-lb)
Machine Dimensions	4,615 x 2,285 x 2,630 mm
Machine Weight	10,650 kg (23,479 lb)
CNC Control	Fanuc 0i-Plus with 15" iHMI touchscreen
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	DNX 2100SB

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

Strengths & Limitations

Strengths

456 Nm spindle torque is outstanding for a 10-inch chuck machine — handles heavy roughing in stainless and alloy steel
B-axis milling capability eliminates secondary mill operations for off-center features, holes, and flats
1,100 mm turning length covers long shaft work that shorter machines can't reach
Single-setup multitasking reduces work-in-process and eliminates part transfer inaccuracies
10,650 kg machine weight provides rigidity for both turning and milling operations
Fanuc 0i-Plus with iHMI supports both turning and milling programming seamlessly

Limitations

No sub-spindle — parts that need backworking still require a second operation or the S/SB variant
4,000 RPM spindle speed limits surface speed on small-diameter aluminum work
B-axis milling adds programming complexity that requires operators with multitasking experience
Higher acquisition cost versus a standard 2-axis lathe — ROI depends on how many parts need milling features
10,650 kg weight requires solid floor preparation

Best For

Production shops turning parts with off-center features that currently require a second milling operation Oil and gas, hydraulic, and aerospace manufacturers making shafts, housings, and fittings with cross-holes and flats Job shops wanting to reduce setup time and WIP by completing parts in one chucking Facilities machining medium-complexity parts in stainless, alloy steel, and tough materials Shops stepping up from 2-axis lathes to multitasking without the cost of a full twin-spindle machine

Frequently Asked Questions

01 What does a DN Solutions DNX 2100 B cost?

New DNX 2100 B machines run $180,000-$260,000 depending on tooling, options, and milling head configuration. That's more than a 2-axis lathe but significantly less than a full twin-spindle multitasking machine.

02 What's the difference between the DNX 2100 B, S, and SB?

The B has a big-bore single spindle (10-inch chuck, 456 Nm torque). The S has dual spindles (8-inch chucks, sub-spindle for backworking). The SB combines the big-bore main spindle with a sub-spindle. Choose B for single-spindle torque, S for dual-spindle part completion, SB for both.

03 How does the DNX 2100 B compare to the Mazak QT 250MSY?

The DNX 2100 B offers more torque (456 vs ~350 Nm typical) in a similar footprint. The Mazak counters with its Mazatrol conversational control and potentially more milling options. Both are capable multitasking platforms — the choice often comes down to control preference and local dealer support.

04 Can the DNX 2100 B do thread milling and contouring?

Yes. The B-axis milling head with live tooling supports thread milling, contour milling, and interpolation features. The Fanuc control handles the simultaneous turning/milling axis coordination required for these operations.