Design of High Horse Power Spindle for Heavy-Duty Cutting
The gear-driven cartridge spindle is capable of reaching speeds of 4,000 to 6,000 RPM. There is a dramatic increase in spindle rigidity due to increased spindle bearing support. This along with a high horsepower spindle motor dramatically enhances the machine's cutting performance. In addition, each gear-driven spindle has a spindle oil cooler used to lower bearing temperature and prolong spindle life.

Column with Honeycomb Shape Structure
The exclusive honeycomb shape structure design is utilized on the Column of VMC-199/229. This design reinforces the headstock support and also enhances the stiffness of the structure. A high stiffness to weight ratio allows excellent dynamic performance during cutting.

Pulley-Driven Spindle
Three spindle alternatives of spindle are available. An enhanced headstock design allows the spindles to run up to 10,000 RPM. All spindles and pulley assemblies are dynamically balanced. A non-slip timing belt ensures the spindle will run smoothly, even at maximum speed.

Gear-Driven Spindle Transmission
The two-speed gear transmission allows full power utilization. All gears are made of Chrome Molybdenum alloy steel, heat treated, and precisely ground to ensure the spindle runs quietly and smoothly. Furthermore, the design of the floating tool release mechanism minimizes any pressure exerted on the spindle bearings.

Enhanced Base Design
The base of VMC-229 has 6-hardened ways that allow greater stability. Therefore, the saddle and table are fully supported along the entire X and Y-axes travels.

Belt-Driven Spindle
The spindle headstock has increased rigidity due to the wide stance design of the z-axis ways and the long surface contact between the headstock and way bars.

Double Stoppers Design
To prevent the deviation of servo motor housings and bearing housing, two stoppers are equipped for each axis to guarantee absolute axial alignment.

Ball-Bar Testing
Each machine goes through telescoping ball-bar tests to check contouring accuracy and uncover any geometric errors. This testing ensures the machine structure is both square and parallel.

Calibration with Laser Interferometer was Performed and Certified by PMC
All of our machines are calibrated according to the "VDI 3441 3σ " standard. Calibration is performed for full travel length for each axis. Each measurement is taken six times to ensure the most consistent and accurate readings.

X-Axis Chip Auger
The chip auger design provides optimal chip disposal and maximizes table cleanness.

Hand Scraping
To ensure consistent high quality, each slide way is hand-scraped. Each axis saddle has Turcite material on it and a special "*" design is used along with a "Z" pattern for efficient oil troughs. There is an excellent distribution of oil to all axes, so settling time after rapid movements is eliminated, and stick-slip during cutting is minimized.

Stiff Ballscrew Design for Greater Axial Support
All three axes use ISO Class C3 precision ground pre-loaded ballscrews with pre-tensioned supports on both ends to minimize backlash and compensate the thermal induced error.

Fluorescent Light(Option)
This option is installed with the fully enclosed splash guard. The work lights are located on the upper right hand corner and left front side, providing a well-lit table area.

Rigid Box Shape Double Deck Table
Unique AGMA designed double deck table. This unique design increases the load capacity of worktable for more variety applications, and also minimizes the deformation induced during heat treatment process.

Metal Steps (Option)
Metal steps allow the operator to load and unload work pieces easily . This feature is designed for easy operator access into the machine.