DN Solutions MYNX 5400 II

$90,000 - $130,000 Updated 2026-03-19

Key Specifications

Max Spindle

8,000 RPM

Spindle Taper

ISO 40 (BT40)

Table Size

1,200 x 540 mm (47 x 21 in)

Spindle Power

15 kW (20 hp)

x axis travel

1,020 mm (40 in)

y axis travel

550 mm (22 in)

Overview

The DN Solutions MYNX 5400 II is a heavy-duty box-way VMC designed from the ground up for sustained production in demanding materials. With 1,020 x 550 x 530 mm (40 x 22 x 21 in) of axis travel, it occupies the same mid-size category as the DNM 5700, but the MYNX platform's heavier castings and wider way surfaces give it a rigidity advantage that shows up during heavy interrupted cuts.

The spindle runs an ISO 40 taper at 8,000 RPM with 15 kW (20 hp) and 286.5 Nm of torque. That torque figure is significantly higher than the DNM series' typical 117.8 Nm for a 40-taper machine, thanks to the MYNX's geared spindle head design. When you're running large face mills in cast iron or deep slotting cuts in steel, that extra torque means less tool deflection and better surface finish.

The table measures 1,200 x 540 mm with 1,000 kg load capacity. Rapid traverse rates of 30/30/24 m/min on X/Y/Z are slower than the DNM family but still adequate for production cycles. At 7,000 kg machine weight, the MYNX 5400 II's mass-to-envelope ratio is excellent — you're getting heavy-machine stability in a mid-size footprint.

The second-generation design brings improved thermal compensation and updated servo drives. The MYNX series has always been the heavy-hitter in the DN Solutions VMC lineup, and the 5400 II is where that capability starts. Shops that tried a lighter machine and found themselves fighting chatter in tough materials will appreciate what the MYNX platform brings to the table.

Full Specifications

Parameter	Value
X Axis Travel	1,020 mm (40 in)
Y Axis Travel	550 mm (22 in)
Z Axis Travel	530 mm (21 in)
Max Spindle Speed	8,000 RPM
Spindle Motor Power	15 kW (20 hp)
Spindle Torque	286.5 Nm (211 ft-lb)
Spindle Taper	ISO 40 (BT40)
Table Size	1,200 x 540 mm (47 x 21 in)
Table Load Capacity	1,000 kg (2,205 lb)
Rapid Traverse Xyz	30/30/24 m/min
Tool Magazine Capacity	30 tools
Machine Weight	7,000 kg (15,432 lb)
CNC Control	Fanuc 0i-Plus with 15" iHMI touchscreen
Max Spindle Speed	8000 r/min
X Axis Travel Distance	1020 mm
Y Axis Travel Distance	550 mm
Metric	IMPERIAL
Travels	X-Axis Travel DistanceY-Axis Travel DistanceZ-Axis Travel Distance
Feed Rates	X-Axis Rapid TraverseY-Axis Rapid TraverseZ-Axis Rapid Traverse
Main Spindle	Max. Spindle SpeedMax. Spindle PowerMax. Spindle Torque
Table	Table LengthTable WidthMaximum Workpiece weight
Dimensions	LengthHeightWidthWeight
Favorites	Mynx 9500

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

Strengths & Limitations

Strengths

286.5 Nm spindle torque is exceptional for a 40-taper machine — nearly 2.5x the DNM series' typical torque output
Heavier MYNX castings and wider box ways deliver superior rigidity compared to the DNM platform at similar travel sizes
1,000 kg table capacity handles heavy workpieces and fixtures without accuracy loss
40-taper tooling keeps costs down while the geared head delivers near-50-taper torque levels
7,000 kg machine weight provides outstanding mass-to-envelope ratio for vibration damping
Second-generation improvements in thermal compensation reduce warm-up time and dimensional drift

Limitations

Slower rapids (30/30/24 m/min) than the DNM series increase cycle times on tool-change-heavy jobs
15 kW spindle power is modest — sustained heavy cuts at high material removal rates may hit the power ceiling
1,020 mm X-travel is less than the DNM 5700's 1,050 mm — marginal but worth noting
550 mm Y-travel limits wider parts compared to the 570 mm and 670 mm class machines

Best For

Production shops running steel and cast iron parts that need exceptional 40-taper torque for heavy face milling and slotting Shops that fought chatter on lighter VMCs and want the MYNX platform's superior rigidity without stepping up to 50-taper Die and mold shops machining P20 and H13 tool steel where spindle torque and machine rigidity directly affect surface finish Facilities standardized on 40-taper tooling that need heavy-cutting capability without the cost of 50-taper tool inventory Job shops doing mixed heavy work that don't need the speed of the DNM series but demand cutting power

Frequently Asked Questions

01 What does a DN Solutions MYNX 5400 II cost?

New machines run $90,000-$130,000. The MYNX platform carries a modest premium over comparable DNM models due to the heavier castings and geared spindle head. Used Doosan-era MYNX 5400 models sell for $35,000-$65,000.

02 How does the MYNX 5400 II compare to the DNM 5700?

The MYNX 5400 II delivers 286.5 Nm torque vs the DNM 5700's 117.8 Nm — a massive difference in cutting force capability. The DNM 5700 has faster rapids (36/36/30 vs 30/30/24 m/min) and slightly more X-travel (1,050 vs 1,020 mm). Choose the MYNX for heavy cutting, the DNM for versatility and cycle time.

03 Why does the MYNX 5400 II have so much more torque than the DNM series?

The MYNX uses a geared spindle head design that multiplies motor torque through a gear reduction stage. This provides higher torque at the spindle nose at the expense of maximum RPM range. It's a deliberate design choice for heavy-duty cutting applications.

04 Is the MYNX 5400 II good for aluminum?

It'll cut aluminum fine, but it's not optimized for it. The 8,000 RPM max speed and slower rapids mean you're leaving cycle time on the table compared to a high-speed 40-taper like the DNM 5700 S at 15,000 RPM. The MYNX's torque advantage is wasted on lightweight aluminum cuts.