Latest technology built-in spindle (also called DDS- Direct Drive Spindle) is included as standard on Victor’s new A-series lathe Vturn-A26 for utmost part surface finish quality and highest angular accuracy by Victor’s own milling turret for C-axis applications.
- Servo Driven Turret
- Fast tool indexing time 0.3 second (T-T)
- Wide carriage 650mm(25.6") in length supports the heavy turret steadily for reliable and continuous turning
- 12 station turret (face mounted for CV model)
- Maximum milling speed of 3000rpm by servo motor maintains a near constant torque output over the complete speed range.
- VDI-40 milling turret with coupling specification either DIN-5480 or DIN-1809 allows quick tool changeover with commercially available VDI tool holders.
- Direct Drive Spindle (DDS)
- The spindle motor is integrated inside the headstock to eliminate the vibrations from the belt or gear drives. This improves the spindle run-out and leads to a greater surface finish and roundness.
- The integral unit has lower inertia than traditional drives to allow faster acceleration time and to improve overall efficiency.
- No need to adjust the belt tension assures the consistent high accuracy from machine installation.
- Dual winding spindle motor (similar as a 2-step gearbox installed) offers the 27% extra torque output at low spindle speed than conventional belt-driven spindle.
- Wide span 470mm to support this bulky headstock which is circulated by oil cooling jacket to prevent the heat build-up in the motor and to minimize thermal expansion.
- NN type bearing (roller bearing) design increases loading capacity to facilitate heavy cutting and a 4-layer labyrinth cover further protects spindle bearings.
- Spindle oil cooler is included as standard to prolong bearing service life.
- Angular encoder is included as standard for Vturn-A26CV model to guarantee the actual machining accuracy ±0.01° (resolution ±0.001°) is guaranteed for C-axis milling application.
- GENUINE SLANT BED by ONE PIECE Casting.
- Superior rapid feed rates 24 / 24 m/min (945/945ipm) on X / Z axes accomplished by increased motor speed & power while maintaining high thrust force for the cutting tool.
- Z-axis ballscrew is mounted on the slant bed (P1) instead of flat machine base (P2) to minimize the distance from ballscrew to tool insert e distance and thus assures the cutting stiffness.
- One piece slant bed with homogenous Meehanite® casting distributes stress thru-out structure.
- To ensure perfect alignment in the machine structure the bed is machined in a single set-up on a large five-face machining center.
- Pre-tensioned double anchored ballcrews directly coupled with the servo motors allow heat absorption without displacement.
- Hand scraped wedge structure maintains trapped film of oil between slideway and undercarriage for smooth, even travel.
- Minimum hand-scraping density 16 DPI (Dots Per Inch) is applied on the related moving surfaces.
Machine Layout and Specification(Metric) Machine Layout and Specification(Imperial)
THE VICTOR-TAICHUNG COMPANIES
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