Makino V77 CNC Vertical Machining Center – Year 2006
X-Axis Travel: 47.2″
Y-Axis Travel: 27.5″
Z-Axis Travel: 25.5″
Table Size: 55″ x 27.5″
Table Capacity: 5510 lb.
Table Top to Spindle Nose Distance: 9.8″ – 35.4″
Spindle Speed: 300 – 30,000 RPM
Spindle Taper: HSK-F63
Tooling: 30-ATC
Drive Motor (30 Min/Continuous): 20/14 HP
EQUIPPED WITH:
Makino Professional CNC Control
Tsudakoma RN-300 Rotary Table (s/n 021774)
Coolant-Thru Spindle
Blum Lazer Probe
Serial Number: 523
Makino V77 CNC Vertical Machining Center – Technical Evaluation (Year 2006)
1. Technical Evaluation Overview
The Makino V77 is a high-speed CNC vertical machining center manufactured in 2006, designed for precision milling with advanced spindle and control technology. Based strictly on the provided information, the machine offers X/Y/Z travels of 47.2″ / 27.5″ / 25.5″, combined with a table size of 55″ × 27.5″ and a maximum table load of 5,510 lb.
The spindle system is configured with an HSK-F63 taper and a wide speed range from 300 to 30,000 rpm, driven by a 20 HP (30 min) / 14 HP (continuous) motor. This configuration clearly positions the V77 for high-speed, high-precision machining rather than heavy low-speed cutting. The table-to-spindle nose distance of 9.8″ to 35.4″ provides flexibility for tooling and fixture setups.
Tool handling is via a 30-position automatic tool changer (ATC). Control is provided by the Makino Professional CNC Control. The machine is equipped with through-spindle coolant, a Tsudakoma RN-300 rotary table, and a Blum laser tool measurement system. Serial number is stated as 523.
Several parameters are not specified, including axis rapid rates, positioning accuracy, rotary table axis limits, and coolant pressure. These should be verified during inspection.
2. What to Check Before Buying
Considering the machine’s configuration and age, the following inspections are technically relevant:
Mechanical structure and axes:
Verification of axis straightness, backlash, and repeatability across the full 47.2″ / 27.5″ / 25.5″ travels.
Inspection of table flatness and T-slot condition (slot size not specified).
Functional testing of the RN-300 rotary table, including indexing accuracy and clamping behavior.
Spindle and tooling:
Condition of the 30,000 rpm HSK-F63 spindle, including bearing noise, vibration, and thermal stability at high speed.
Verification of spindle power delivery relative to intended cutting loads.
Reliable operation of the 30-ATC, including tool clamp/unclamp consistency for HSK tooling.
Probing, coolant, and peripherals:
Calibration and operation of the Blum laser probe for tool measurement.
Performance of through-spindle coolant (pressure not specified) and coolant filtration.
CNC and electrical system:
Health of the Makino Professional Control, including software version, options, parameter backups, and alarm history.
Condition of electrical cabinets, drives, and cooling fans.
3. Typical Industrial Applications
Based strictly on the stated specifications and equipment, the Makino V77 is technically suitable for:
High-speed precision milling of complex prismatic components.
Mold, die, and aerospace-style components requiring fine surface finishes and stable HSK tooling.
Multi-face machining using the installed Tsudakoma rotary table to reduce setups.
Specific materials, tolerances, and productivity metrics cannot be confirmed from the provided information.
4. Common Risks in Used Machines
Typical risks for used high-speed vertical machining centers of this class include:
Spindle wear, particularly critical at sustained speeds approaching 30,000 rpm.
HSK interface wear, which can affect runout and tool holding accuracy.
Rotary table wear or calibration drift, impacting positional accuracy.
Incomplete documentation, such as missing CNC backups or probing calibration records.
5. Maintenance and Service Considerations
With no service history provided, maintenance considerations are limited to general technical points:
Regular monitoring of spindle bearings, cooling performance, and vibration is essential.
Periodic verification of axis geometry and rotary table calibration is recommended.
CNC parameters, probing data, and tool management settings should be backed up prior to continued operation or relocation.
Any refurbishment or optimization planning should be based on on-site inspection and functional testing rather than assumptions.
Final Note:
The Makino V77, as specified, is a capable high-speed vertical machining center with advanced spindle technology and integrated probing and rotary capability. While the provided information outlines a strong precision-focused configuration, a complete technical evaluation requires verification of spindle condition, rotary table performance, axis accuracy, and control options through direct inspection and testing.
