The two-machine Tongtai VTX Series fixed column, moving table CNC milling and tapping centers is engineered for high volume, high precision machining.
X, Y, and Z axis travels are 20″ x 15.7″ x 11.8″ (508 mm x 398 mm x 300 mm) for the VTX-5 machine, and 28″ x 15.7″ x 11.8″ (711 mm x 398 mm x 300 mm) for the larger VTX-7. Heavy Meehanite castings provide a rigid and stable machining platform.
| X | 28" | 711.2 mm |
| Y | 15.7" | 398.78 mm |
| Z | 11.8" | 299.72 mm |
| Power | 7.5 hp | 5.6 kW |
| RPM | 12,000 RPM | 12,000 RPM |
| # ATC | 21 | 21 |
| Taper | BBT-30 Dual Contact | BBT-30 Dual Contact |
| Table-L (X-Axis) | 33.5" | 850.9 mm |
| Table-W (Y-Axis) | 15.7" | 398.78 mm |
| Dimensions | 87" x 79" x 98" | 87" x 79" x 98" |
| Weight | 6,570 LBS | 6,570 LBS |
Item / Model VTX-7
Travels
Longitudinal Travel X-Axis 28″
Cross Travel Y-Axis 15.7″
Vertical Travel Z-Axis 11.8″ (13.8″ for VTX-7A)
Table to Spindle 7.9″ min. / 19.7″ max.
(21.7″ max. for VTX-7A)
Spindle Center to Column 16.3″
Table
Table Working Surface 33.5″ x 15.7″
Maximum Workload on Table 550 lbs.
Table Surface Ground / T-slotted
No. of T-slots x Width 3 x 18 mm
Table Height from Floor 33.5″
Spindle
Spindle Motor 7.5 HP (5 HP opt.)
Spindle Taper BBT-30 (Dual Contact)
RPM 0 – 12,000 (0 – 24,000 opt.)
Spindle Drive Direct Drive
ATC – Turret Type (std. for VTX-5)
Number of Tools 21
Tool Selection Bi-directional Fixed
Tool Change Time 1.4 sec. Tool to Tool
Chip to Chip Time 1.9 sec. Chip to Chip
Magazine Index Time Adjacent Station 0.1 seconds
Magazine Index Time 180° 0.8 seconds
Max Tool Diameter 3.15″ with Adjacent Tools
Max Tool Weight 6.6 lbs.
Tool Type BBT-30
Max Tool Length 7.9″
ATC – Arm Type (std. for VTX-5A)
Number of Tools 20 Tools (+1 in the Spindle)
Tool Selection Bi-directional Random
Tool Change Time .8 sec Tool to Tool
Chip to Chip Time 1.3 sec Chip to Chip
Max Tool Diameter 2.67″ with Adjacent Tools
Max Tool Weight 6.6 lbs.
Tool Type BT-30
Max Tool Length 7.9″
Ballscrews and Axis Motors
X – Y – Z Ballscrew Diameter 25mm (1″) x 16 mm Pitch
Ballscrew Type Class 3 Double Nut Pre-loaded
Ballscrew Mounting Type Double Anchored
X – Y – Z Servo Motor HP 2.0 – 3.0 – 3.0 HP
Servo Motor Mounting Direct Coupled
Feeds
Rapid Traverse Rate X, Y, Z 2,362 IPM
Acceleration 1.2G
Cutting Feed Rate 0.01 – 787 IPM
Positioning Accuracy ± .0003″ Full Stroke
Repeatability ± .0002″
General
Coolant Tank Capacity 30 Gallons
Floor Space 87″ x 79″ x 98″
Machine Power Source 208/220 Volts, 3 Phase 40 Amps*
Air Source 90 PSI
Machine Weight 6,570 lbs.
