DN Solutions VCF 850 L II

$300,000 - $420,000 Updated 2026-03-19

Key Specifications

Table Size

3,500 x 870 mm (137.8 x 34.3 in)

Spindle Power

26 kW (34.8 hp)

x axis travel

3,000 mm (118.1 in)

y axis travel

850 mm (33.5 in)

z axis travel

800 mm (31.5 in)

rapid traverse x

40 m/min (1,575 in/min)

Overview

The DN Solutions VCF 850 L II is a heavy-duty, large-envelope vertical machining center built for shops working on big parts that demand rigidity. With 3,000 x 850 x 800 mm travels on X, Y, and Z, it covers the kind of work that typically requires a horizontal boring mill or bridge machine — long mold bases, structural weldments, large die sets, and energy sector components.

The spindle runs at 12,000 RPM with 26 kW (34.8 hp) and 207 Nm (152.7 ft-lb) of torque through the ISO 40 taper. That torque number is substantially higher than the VCF 5500 line's 117.8 Nm, reflecting the VCF 850's heavier-duty orientation. You can push bigger face mills and take deeper cuts without worrying about stalling.

The 3,500 x 870 mm table handles workpieces up to 3,500 kg. Rapid traverse hits 40 m/min on all three axes, which is impressive for a machine this size — the 5500 L with similar X travel only manages 42 m/min. The VCF 850 L II achieves this through a well-designed carriage system on hardened box guideways.

At 24,000 kg (52,911 lb), this is a serious piece of iron. The second-generation (II) designation reflects DN Solutions' updates to thermal compensation, casting rigidity, and spindle design over the original VCF 850 L. The 850 mm Y travel and 800 mm Z travel give you access angles and clearance that narrower long-bed machines can't match, making this a true large-part machining center rather than just a long-table VMC.

DN Solutions runs the Fanuc 0i-Plus control with iHMI. For shops doing mold and die work, the control's NURBS interpolation and smoothing algorithms are essential for maintaining surface quality across the extended travel envelope. The VCF 850 L II competes with machines like the Okuma MCR-A5CII and Mazak FJV-series in the large-part vertical segment.

Full Specifications

Parameter	Value
X Axis Travel	3,000 mm (118.1 in)
Y Axis Travel	850 mm (33.5 in)
Z Axis Travel	800 mm (31.5 in)
Rapid Traverse X	40 m/min (1,575 in/min)
Rapid Traverse Y	40 m/min (1,575 in/min)
Rapid Traverse Z	40 m/min (1,575 in/min)
Spindle Speed	12,000 RPM
Spindle Motor Power	26 kW (34.8 hp)
Spindle Torque	207 Nm (152.7 ft-lb)
Table Size	3,500 x 870 mm (137.8 x 34.3 in)
Max Table Load	3,500 kg (7,716 lb)
Machine Dimensions	3,795 x 5,440 x 3,253 mm
Machine Weight	24,000 kg (52,911 lb)
CNC Control	Fanuc 0i-Plus with 15" iHMI touchscreen
Max Spindle Speed	12000 r/min
X Axis Travel Distance	3000 mm
Y Axis Travel Distance	850 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 TorqueTool Taper
Table	Table LengthTable WidthMaximum Workpiece weight
Tool Storage Capacity	No. of tool station
Dimensions	LengthHeightWidthWeight
Favorites	VCF 5500SL

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

Strengths & Limitations

Strengths

3,000 x 850 x 800 mm travel envelope handles large parts that typically require horizontal boring mills
207 Nm spindle torque enables aggressive roughing on large castings and weldments
850 mm Y and 800 mm Z travels provide access angles that narrower long-bed VMCs can't match
40 m/min rapids on all axes are fast for a machine this size and reduce non-cutting time
3,500 kg table load supports heavy workpieces without restriction
Generation II updates improve thermal compensation and casting rigidity over the original

Limitations

24,000 kg machine weight demands reinforced concrete foundations and significant rigging planning
ISO 40 taper feels undersized for a machine this large — BT50 would provide more authority for heavy roughing
3,795 x 5,440 mm footprint requires a large dedicated area in the shop
High acquisition cost positions this against horizontal boring mills and bridge machines that may offer more flexibility

Best For

Mold and die shops working on large mold bases, die sets, and press tools up to 3 meters Heavy equipment manufacturers machining large weldments and structural components Energy sector facilities processing turbine housings, valve bodies, and large plates Shops needing wide Y travel plus long X travel in a vertical configuration Facilities looking for large-part capability without the complexity of a horizontal boring mill

Frequently Asked Questions

01 What does a DN Solutions VCF 850 L II cost?

New VCF 850 L II machines run $300,000-$420,000 depending on options and configuration. That's competitive with smaller horizontal boring mills and significantly less than a bridge-type machine with comparable travels.

02 How does the VCF 850 L II compare to the VCF 850 SR II?

The L II has 3,000 mm X travel versus the SR II's 2,000 mm. Both share the same spindle, Y/Z travels, and 40 m/min rapids. The SR II weighs less (22,000 vs 24,000 kg) and takes up less floor space. Choose based on maximum part length requirements.

03 What's the advantage over a horizontal boring mill?

The VCF 850 L II is simpler to operate, program, and maintain than a horizontal boring mill. It offers faster rapids, lower acquisition cost, and a smaller footprint. The HBM counters with more axis configurations, higher spindle power options, and the ability to machine all sides of a part without repositioning.

04 Can it handle mold finishing work?

Yes. The 12,000 RPM spindle, heavy machine weight, and Fanuc control's NURBS processing make the VCF 850 L II capable of producing good surface finishes on mold work. For ultra-fine finishing, you may still want a dedicated high-speed mold machine, but for most production mold finishing, it's solid.