Mazak VTC-300C

The Mazak VTC-300C belongs to the VTC series, Mazak's vertical machining centers with a fixed table and a traversing spindle. Its own table lists a 2000 mm × 760 mm table, 1670 mm of X travel, 760 mm of Y and 660 mm of Z, CAT No.40 tooling, a 24-tool magazine and a spindle motor of 22 kW (30 HP) on a ten-minute rating.

Read the table against the travels. Y travel equals the 760 mm table depth, so the spindle reaches the whole surface front to back. The table is longer than the X travel, which leaves length at the ends that the spindle does not cover. Mazak says of the series that no equipment sits at either end of the long table, so a workpiece can overhang it; that spare length is where clamps, stops or the unsupported end of a long bar go.

Because the part never moves, Mazak describes the long table as a place for large, long workpieces, for several parts cut from one piece of material, or for separate setups along its length in place of a two-pallet changer. The fixed table is also described as easy to equip with robots and hydraulic fixtures. An optional center partition that turns the machine into two work zones is described for the VTC-530/20; it is not stated for the VTC-300C.

The 22 kW (30 HP) figure is a ten-minute rating, not a continuous one, and Mazak's table for this model gives no spindle speed, torque, rapid traverse or table load. Those need to come from the quotation. The FJV-35/80 is a larger step: 78.74 in (2,000 mm) of X travel, 31.5 in (800 mm) of Y, a CAT No.50 spindle, 30 tools and a 6,614 lb (3,000 kg) table load.

For programming, Mazak describes MAZATROL conversational programming for the series, along with a pocket milling cycle that keeps cutter engagement constant and a VFC function for overriding and saving cutting conditions.