VMC855 · VMC SERIES · MOLD & DIE HEAVY MILLING

VMC855 Heavy-Duty Wide-Saddle Vertical Machining Center

Engineered with a widened 550 mm Y-axis throat, oversized 45-size roller ways on all axes, and a 6,500 kg cast-iron structure for heavy tool steel and mold bases.

X / Y / Z Travel: 850 × 550 × 550 mm
Spindle Torque / Power: 15 / 18.5 kW (BBT40)
Guideways (X / Y / Z): 45 / 45 / 45 mm Roller
Positioning Accuracy: ±0.003 mm

Request a Quote · VMC855 Technical Specifications

Taikan VMC855 heavy-duty CNC vertical machining center machining a hardened tool-steel die block

Model Overview

The Taikan VMC855 is a heavy-duty 3-axis CNC vertical machining center engineered specifically for tool-and-die makers, P20/H13 mold bases, and high-torque structural steel milling. Compared to standard 850-class machines, the VMC855 expands Y-axis travel to 550 mm (total X/Y/Z envelope of 850 × 550 × 550 mm), upgrades all three axes to 45 mm heavy-load roller linear guideways with Ø40 mm C3 ballscrews, and increases total Fine-Grain HT300 machine mass to 6,500 kg. Its 1,000 × 550 mm worktable carries up to 800 kg. A 150 mm diameter BBT40 dual-contact spindle (face and taper contact) driven by a 15/18.5 kW (118 Nm) motor eliminates tool pull-out and deflection during aggressive roughing, while holding ±0.003 mm positioning accuracy and ±0.0015 mm repeatability for 3D mold finishing.

Design & Construction.

All-Axis 45 mm Roller Guideways & Ø40 mm C3 Ballscrews

Upgrading X, Y, and Z axes to 45-size roller linear ways boosts dynamic rigidity by 42% over standard 35-size rails during heavy interrupted cuts.

BBT40 Dual-Contact Ø150 mm Spindle Nose (118 Nm)

Simultaneous taper-and-flange contact prevents fretting corrosion, improves Z-axis depth repeatability, and extends carbide endmill life by up to 30%.

6,500 kg Widened Column & Four-Rail Base Architecture

Full-support Y-axis bedways prevent table overhang deflection when machining 800 kg die blocks at extreme X-axis travel limits.

Mold & Die Thermal Stabilization Package

Hollow-cooled ballscrews and spindle head oil-chiller circuits hold thermal drift below 8 microns during 16-hour unattended 3D surfacing runs.

Technical Specifications · VMC855

ISO 230-2 Standard

Working Capacity & Heavy Table

Item	Unit	Specification
Worktable Dimensions	mm	1000 × 550
X / Y / Z Axis Travel	mm	850 × 550 × 550
Max Table Load	kg	800
T-Slot Configuration	mm	5 × 18 × 100
Spindle Nose to Table	mm	120 – 670

High-Torque Spindle & 45-Size Guideways

Item	Unit	Specification
Spindle Taper	ISO	BBT40 Dual-Contact (150 mm Nose Dia.)
Spindle Speed	rpm	10,000 Direct-Drive (12,000 Optional)
Spindle Motor Power / Peak Torque	kW / Nm	15 / 18.5 kW · 118 Nm
Guideway Specification (X / Y / Z)	mm	45 / 45 / 45 Heavy Roller Linear Ways
Ballscrew Diameter (X / Y / Z)	mm	Ø40 / Ø40 / Ø40 (Class C3)

ATC Magazine, Accuracy & Machine Mass

Item	Unit	Specification
Automatic Tool Changer	Tools	24-Station Servo Dual-Arm ATC
Positioning Accuracy	mm	±0.003
Repeatability	mm	±0.0015
Machine Net Weight	kg	6,500

Typical Workpieces

Injection & Die-Casting Molds

H13 aluminum die-casting cavities, P20 automotive bumper & lighting mold cores, forging dies
Heavy Industrial & Energy Equipment

Duplex stainless valve bodies, mining gearbox housings, wind turbine brake calipers
Multi-Axis Rotary Fixture Cells

4th/5th-axis trunnion rotary machining of aerospace impellers and turbine brackets

Standard Configuration

· BBT40 10,000 rpm dual-contact Ø150 mm spindle (15/18.5 kW)
· 45/45/45 mm heavy roller linear guideways & Ø40 mm C3 ballscrews
· 24-station servo dual-arm ATC for heavy tool holders (up to 8 kg/tool)
· Spindle oil chiller and triple-zone chip flushing washdown system
· 6,500 kg Fine-Grain HT300 resin-sand casting with dual stress relief
· AICC II high-speed mold look-ahead smoothing algorithm

Optional Accessories

+ 12,000 rpm high-torque direct-drive BBT40 spindle
+ 30–70 bar High-Pressure Through-Spindle Coolant (CTS) with paper band filter
+ Optical Glass / Fagor absolute optical linear scales on X/Y/Z axes (±0.002 mm)
+ 4th/5th-axis CNC tilting rotary trunnion table
+ Hinged steel-belt chip conveyor with high-capacity coolant tank