DN Solutions DBC 160

$800,000 - $1,300,000 Updated 2026-03-19

Key Specifications

X Travel

4,000 mm (157.5 in)

Y Travel

2,500 mm (98.4 in)

Z Travel

1,600 mm (63.0 in)

Max Spindle

2,000 RPM

Spindle Taper

ISO #50

Table Size

2,200 x 2,000 mm (86.6 x 78.7 in)

Overview

The DN Solutions DBC 160 is the largest horizontal boring mill in the standard DBC lineup, built around a massive 160 mm spindle bore for the heaviest boring operations in industrial manufacturing. When shops need to machine large castings, turbine housings, and structural components that weigh up to 20 metric tons, this is the class of machine that gets the job done.

Axis travel spans 4,000 x 2,500 x 1,600 mm (157.5 x 98.4 x 63.0 in) on X/Y/Z. The 4,000 mm X-travel matches the DBC 130 L II's reach, letting you span widely-spaced bore patterns across the full length of large parts. The 2,200 x 2,000 mm (86.6 x 78.7 in) rotary table is the largest in the DBC family, handling workpieces up to 20,000 kg (44,092 lb).

The spindle is a standout: 2,000 RPM with 45 kW (60 hp) and 3,900 Nm (2,876 ft-lbs) of torque through an ISO #50 taper. The 45 kW motor is the most powerful in the entire DBC range, and the 3,900 Nm torque figure means this machine doesn't flinch when driving large face mills and boring bars through heavy cast iron and structural steel. The 160 mm spindle bore is the real differentiator — it accepts the largest boring bars for maximum rigidity on deep, large-diameter boring operations.

Rapid traverse at 10 m/min (394 ipm) is standard for this class. At 49,000 kg (108,027 lb), the DBC 160 is the heaviest standard DBC model, providing the mass foundation that makes heavy boring accurate and vibration-free. The 9,000 x 7,900 mm (354 x 311 in) footprint is large but manageable for shops already set up for this class of work.

The DBC 160 targets the most demanding applications in energy, shipbuilding, mining, and heavy construction equipment manufacturing. It competes with the largest table-type HBMs from TOS Varnsdorf, Skoda, Pama, and Doosan's own legacy designs. For anything bigger, shops typically move to floor-type boring mills.

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	1,600 mm (63.0 in)
Table Size	2,200 x 2,000 mm (86.6 x 78.7 in)
Max Workpiece Weight	20,000 kg (44,092 lb)
Max Spindle Speed	2,000 RPM
Spindle Taper	ISO #50
Spindle Torque	3,900 Nm (2,876 ft-lbs)
Spindle Motor Power	45 kW (60 hp)
Rapid Traverse Rate	10 m/min (394 ipm)
Machine Dimensions	9,000 x 7,900 x 6,150 mm (354 x 311 x 242 in)
Machine Weight	49,000 kg (108,027 lb)
X Axis Travel Distance	4000 mm
Y Axis Travel Distance	2500 mm
Z Axis Travel Distance	1600 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
Dimensions	LengthHeightWidthWeight
Favorites	DBC 250L II

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

Strengths & Limitations

Strengths

160 mm spindle bore is the largest in the DBC family, accepting the biggest boring bars for maximum deep-hole rigidity
3,900 Nm torque and 45 kW power are the highest in the DBC lineup for sustained heavy material removal
20,000 kg table capacity handles the largest workpieces that fit on a table-type boring mill
2,200 x 2,000 mm table provides generous clamping area for large castings and weldments
4,000 mm X-travel spans widely-spaced bore patterns on the longest workpieces
49,000 kg machine weight ensures vibration-free accuracy during heavy interrupted cuts

Limitations

2,000 RPM max spindle speed limits milling performance — this is a boring-first machine
49,000 kg weight and 9 x 7.9 m footprint require major foundation work and dedicated floor space
10 m/min rapids across 4,000 mm X-travel means significant non-cutting time on long repositioning moves
Price and lead time put this in capital-planning territory — 12+ months from order to production is typical
Limited to table-mounted work — parts larger than the 2,200 x 2,000 mm table need floor-type boring mills

Best For

Power generation manufacturers machining large turbine housings, generator frames, and steam chests Shipbuilding yards boring large marine diesel engine blocks and structural castings Mining equipment manufacturers handling the heaviest frames and structural components Heavy construction equipment producers machining excavator and crane base frames Large industrial job shops that take on the biggest boring work across multiple sectors Oil and gas equipment manufacturers machining large valve bodies and blowout preventer housings

Frequently Asked Questions

01 What does the DN Solutions DBC 160 cost?

New DBC 160 pricing typically ranges from $800,000 to $1,300,000 depending on configuration. This is a major capital investment that typically includes foundation engineering ($50,000-$100,000), installation ($50,000+), and an extensive tooling package. Plan for 12-18 months lead time.

02 When do I need a 160 mm bore versus 130 mm?

The larger bore matters when you're boring deep holes above 100 mm diameter — the 160 mm bore lets you use stiffer bars that deflect less at extended lengths. If your typical boring operations involve holes under 100 mm or depths under 500 mm, the 130 mm bore machines are more cost-effective. The DBC 160's real advantage is on deep, large-diameter precision bores.

03 How does the DBC 160 compare to a floor-type boring mill?

The DBC 160 is a table-type machine limited to 20,000 kg and the table dimensions. Floor-type boring mills handle heavier workpieces (up to 100+ tons with proper floor plates) and unlimited X-travel. But floor-type machines require floor plates, angle plates, and more complex fixturing. If your parts fit the DBC 160's table, it's simpler and more efficient.

04 What kind of accuracy can the DBC 160 achieve?

Large horizontal boring mills in this class typically achieve positioning accuracy of 0.015-0.020 mm and bore diameter accuracy of 0.015-0.025 mm. The 49,000 kg machine weight and thermal stability design help maintain these tolerances over long machining cycles. Actual accuracy depends on foundation quality, ambient conditions, and operator practices.