DN Solutions BM 2740 U

$1,000,000 - $1,500,000 Updated 2026-03-19

Key Specifications

X Travel

4,000 mm (157.5 in)

Y Travel

2,500 mm (98.4 in)

Z Travel

800 mm (31.5 in)

Max Spindle

15,000 RPM

Spindle Taper

HSK-A100

Table Size

4,000 x 2,500 mm (157.5 x 98.4 in)

Overview

The DN Solutions BM 2740 U is the big brother in DN Solutions' bridge-type 5-axis lineup, stretching the working envelope to 4,000 x 2,500 x 800 mm with a 15,000 kg table capacity. If you're cutting full-size automotive body panel dies, large aerospace structural components, or heavy-duty mold bases, this machine was designed with your workpieces in mind.

The spindle spec mirrors the BM 2035 U: 15,000 RPM, 45.9 kW (61.5 hp), 146.1 Nm (107.8 ft-lbs) of torque through an HSK-A100 taper. The universal head delivers full 5-axis positioning capability, letting you reach complex geometries and deep pockets without multiple setups. DN Solutions' dual-contact spindle design keeps vibration in check during long finishing passes where surface quality is everything.

The 4,000 x 2,500 mm table is where the BM 2740 U separates itself from the smaller BM 2035 U. That extra 500 mm in X and Y means you can clamp a complete large die set without hanging over the edges. At 15 tons of table capacity, you won't have to think twice about heavy mold blocks or large castings. The bridge construction distributes cutting forces evenly across both columns, maintaining accuracy even when the spindle is operating at the extremes of travel.

Thermal management follows DN Solutions' standard approach for this class: ball screw bearing and nut cooling, thermal displacement compensation for spindle and structure, linear scales on all axes, and environmental covers to minimize shop temperature influence. Rapid traverse runs 12 m/min on X, 16 m/min on Y, and 12 m/min on Z — slightly slower on X than the 2035 U due to the longer travel distance.

The machine tips the scales at 48,700 kg (107,364 lb), making it a serious installation project. The footprint runs 6,011 x 10,984 x 4,995 mm. You'll need a purpose-built foundation and likely crane access for installation. But for shops that need 5-axis capability on workpieces exceeding 3 meters in length, the BM 2740 U fills a gap that smaller machines simply can't reach.

Full Specifications

Parameter	Value
X-Axis Travel	4,000 mm (157.5 in)
Y-Axis Travel	2,500 mm (98.4 in)
Z-Axis Travel	800 mm (31.5 in)
Table Size	4,000 x 2,500 mm (157.5 x 98.4 in)
Max Workpiece Weight	15,000 kg (33,069 lb)
Max Spindle Speed	15,000 RPM
Spindle Motor Power	45.9 kW (61.5 hp)
Spindle Torque	146.1 Nm (107.8 ft-lbs)
Spindle Taper	HSK-A100
Rapid Traverse X	12 m/min (472 ipm)
Rapid Traverse Y	16 m/min (630 ipm)
Rapid Traverse Z	12 m/min (472 ipm)
Machine Dimensions	6,011 x 10,984 x 4,995 mm (237 x 432 x 197 in)
Machine Weight	48,700 kg (107,364 lb)
X Axis Travel Distance	4000 mm
Y Axis Travel Distance	2500 mm
Z Axis Travel Distance	800 mm
Metric	IMPERIAL
Capacity	Table to spindle nose
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 TorqueTool Taper
Table	Table LengthTable WidthMaximum Workpiece weight
Dimensions	LengthHeightWidthWeight
Favorites	BM 2740U

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

Strengths & Limitations

Strengths

4,000 x 2,500 mm table handles full-size automotive dies and large aerospace structures in a single setup
15,000 kg table capacity means you won't have to worry about weight limits on heavy mold blocks and castings
Bridge construction with symmetrical columns provides inherent thermal stability for consistent accuracy
HSK-A100 taper with dual-contact spindle delivers low-vibration cutting for high-quality surface finishes
Linear scales standard on all axes for direct position feedback independent of ballscrew condition
Comprehensive thermal compensation system keeps parts on-size during extended unattended cycles

Limitations

48,700 kg machine weight requires purpose-built foundation and significant installation planning
800 mm Z-travel may be limiting for deep cavity dies — competitors offer 1,000+ mm Z on similar-class machines
12 m/min X-axis rapid is on the slow side for a machine with 4,000 mm of X travel
Price point north of $1M puts this out of reach for smaller die/mold operations
Large footprint demands significant floor space commitment

Best For

Automotive die shops cutting full-size body panel stamping dies and large progressive dies Aerospace manufacturers machining large structural components with complex 5-axis contours Heavy mold shops producing large injection molds for automotive bumpers, dashboards, and door panels Energy sector manufacturers cutting large turbine components and generator housings Pattern shops working with oversize parts that exceed the capacity of standard 5-axis platforms

Frequently Asked Questions

01 What's the main difference between the BM 2740 U and BM 2035 U?

The BM 2740 U adds 500 mm of X-travel (4,000 vs 3,500 mm) and 450 mm of Y-travel (2,500 vs 2,050 mm), bumps the table capacity from 10,000 to 15,000 kg, and increases the table width from 1,600 to 2,500 mm. The spindle specs are identical. The 2740 U weighs about 8,700 kg more and has a larger footprint. If your parts fit on the 2035 U's table, save the money — the 2740 U is for workpieces that genuinely need the extra envelope.

02 What controls are available on the BM 2740 U?

DN Solutions typically offers Fanuc and Siemens controls on their large double-column machines. The specific controller options depend on the regional market. Check with your local DN Solutions distributor for currently available control packages. Most die/mold shops in North America spec Fanuc 31i-B Plus for this type of machine.

03 How does the BM 2740 U compare to the DCM 2740 U?

Both cover a similar working envelope, but they're fundamentally different machine architectures. The BM series uses a bridge (fixed crossrail) design while the DCM series uses a movable crossrail (W-axis). The DCM 2740 U has 1,000 mm of Z-travel versus 800 mm on the BM, plus a W-axis for additional vertical reach. The DCM is heavier (70,000 vs 48,700 kg) and more expensive. If you need the extra Z-travel and vertical flexibility, go DCM. If 800 mm Z is enough, the BM costs less and has a simpler structure.

04 What kind of surface finishes can you achieve?

With proper tooling, cutting parameters, and the universal head's 5-axis positioning, shops regularly achieve Ra 0.4-0.8 um on die/mold surfaces. The dual-contact spindle and bridge construction contribute to low-vibration cutting. For mirror finishes below Ra 0.2, you'll likely still need hand polishing, but the BM 2740 U can get you close enough to minimize bench time significantly.