Mazak VTC-300C II CNC Vertical Machining Center – Year 2005
Manufacturer:
Mazak
Model:
VTC-300C II
Machine number:
175849
Year of construction:
2005
Condition:
used
Functionality:
fully functional
Technical details
Travel distance X-axis:
1,740 mm
Travel distance Y-axis:
760 mm
Travel distance Z-axis:
840 mm
Controller model:
PC Fusion 640 M
Total height:
4,450 mm
Total length:
3,300 mm
Total width:
2,900 mm
Overall weight:
11,500 kg
Spindle speed (max.):
12,000 rpm
3-Axis Machining Center MAZAK – VTC 300C-II
Manufacturer: MAZAK
Model: VTC 300C-II
Control: PC Fusion 640M
Year of manufacture: 2005
Internal coolant supply (IKZ): 15 bar
Table length: 2000 mm
Table width: 760 mm
Feed rate X-axis: 36,000 mm/min
Feed rate Y-axis: 36,000 mm/min
Feed rate Z-axis: 36,000 mm/min
Tool holder: SK 40
Spindle power: 15 kW
Spindle speed: 12,000 rpm
Tool changer: 30 positions
Internal coolant: Yes
Number of controlled axes: 3
Chip conveyor: Yes
Cooling unit: Yes
Length: 4450 mm
Width: 3300 mm
Height: 2900 mm
Can be inspected under power.
Mazak VTC-300C II CNC Vertical Machining Center – Technical Evaluation (Year 2005)
1. Technical Evaluation Overview
The Mazak VTC-300C II is a 3-axis vertical machining center configured for large-format milling operations. Based strictly on the provided information, the machine offers extended travels of X 1,740 mm, Y 760 mm, and Z 840 mm, combined with a table size of 2,000 × 760 mm, positioning it for long or oversized workpieces within a single setup.
The spindle configuration is specified with a SK 40 tool holder, maximum spindle speed of 12,000 rpm, and spindle power of 15 kW. Tool management is handled by a 30-position automatic tool changer. The machine is equipped with internal coolant supply (IKZ) at 15 bar, a chip conveyor, and a cooling unit. Rapid feed rates are stated as 36,000 mm/min on X, Y, and Z.
Control is provided by the Mazatrol PC Fusion 640 M CNC system. The overall machine weight is 11,500 kg. Reported overall dimensions vary slightly in the provided data; the machine footprint is approximately 4,450 × 3,300 × 2,900 mm (L × W × H), which should be confirmed on site. The machine is described as fully functional and can be inspected under power.
Several parameters are not specified, including spindle torque curve, axis guideway type, positioning accuracy, and available CNC options. These should be verified during inspection.
2. What to Check Before Buying
Considering the stated specifications and the machine’s age, the following checks are technically relevant:
Mechanical and axis system:
Condition and straightness of the long X-axis (1,740 mm), including wear patterns on guideways and ballscrews.
Verification of axis backlash, repeatability, and smooth motion at both low feed and 36,000 mm/min rapid rates.
Inspection of the table surface and 2,000 × 760 mm clamping area for damage or deformation.
Spindle and tooling:
Condition of the 12,000 rpm SK 40 spindle, including bearing noise, vibration, and thermal stability under load.
Verification of spindle power delivery (15 kW) during cutting.
Tool changer operation across all 30 positions, including arm alignment and magazine condition.
Coolant and chip management:
Functional test of the 15-bar internal coolant system, including pump performance and leakage.
Condition and effectiveness of the chip conveyor and coolant filtration.
CNC and electrical system:
Operational status of the PC Fusion 640 M control, including alarm history, parameter backups, and program handling.
Inspection of electrical cabinets, drives, and cooling fans suitable for long production cycles.
3. Typical Industrial Applications
Based on the provided configuration, the VTC-300C II is technically suitable for:
Milling of long or large components requiring extended X-axis travel in a single setup.
General 3-axis machining tasks such as face milling, pocketing, and contouring on medium to large workpieces.
Applications benefiting from through-spindle coolant for drilling and milling operations.
Material types, achievable tolerances, and surface finish quality cannot be confirmed from the provided data and should be validated through testing.
4. Common Risks in Used Machines
For a used vertical machining center of this size and generation, typical risks include:
Axis wear, particularly on long-travel axes subjected to heavy use.
Spindle bearing wear, which can affect surface finish and dimensional stability.
Control system age, where long-term reliability depends on maintenance history rather than year alone.
Documentation gaps, such as missing electrical schematics, CNC backups, or maintenance records.
5. Maintenance and Service Considerations
With no service history provided, maintenance considerations are limited to general technical aspects:
Regular inspection of spindle condition, lubrication systems, and axis components is essential.
Coolant systems and chip conveyors require monitoring to prevent contamination and flow issues.
CNC parameters and machine data should be backed up prior to operation.
Any refurbishment or long-term service planning should be based on on-site inspection and functional testing rather than assumptions about maintenance intervals or spare part availability.
Final Note:
The Mazak VTC-300C II, as specified, is a large-capacity 3-axis vertical machining center with extended travels and standard SK 40 tooling. While the provided information outlines its primary capabilities, several critical technical details remain unspecified. A complete and reliable evaluation requires verification of axis condition, spindle performance, CNC configuration, and documentation through direct inspection and testing.
