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Tongtai VTX Series – Vertical Milling & Tapping Centers

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.

The machines feature roller-type linear slideways to maximize rigidity and control machine motion. Class 3, 25mm (1″)-dia. ballscrews with a double nut pre-loaded design permit a standard rapid traverse rate of 2,362 ipm (60 m/min) for all axes and acceleration of 1.2G. An APS (Absolute Pulse Coder) servo system enables the machine to be started from any position.

VTX machines are equipped with either a 21 tool turret-type or 20 tool arm-type automatic tool changing system. With the 21-station changer, change times are 1.4 seconds tool to tool and 1.9 seconds chip to chip. The 20-tool high-speed arm-type changer reduces tool change times to 0.8 seconds and 1.3 seconds chip to chip.

The machines’ standard 7.5 hp, 12,000 RPM direct drive spindle provides rigid tap speeds up to 6,000 rpm. An optional 24,000 rpm direct drive spindle delivers high cutting speeds for aluminum and magnesium parts as well as graphite. A BBT-30 (Big Plus dual-contact) taper is standard for rigid milling. Through-spindle coolant capability is standard, as is a spindle chiller. The machines’ bed flushing system provides efficient chip removal.

The standard Mitsubishi M80A control features a 10.4″ (265 mm) touch screen with intuitive smart phone type operation and is suitable for a wide range of applications from production to high speed machining applications.

Specifications
Standard Equipment
Optional Accessories
Related Machines
Videos

Specifications

Item / Model	VTX-5	VTX-7
Travels
Longitudinal Travel X-Axis	20″	28″
Cross Travel Y-Axis	15.7″	15.7″
Vertical Travel Z-Axis	11.8″ (13.8″ for VTX-5A)	11.8″ (13.8″ for VTX-7A)
Table to Spindle	7.9″ min. / 19.7″ max. (21.7″ max. for VTX-5A)	7.9″ min. / 19.7″ max. (21.7″ max. for VTX-7A)
Spindle Center to Column	16.3″
Table
Table Working Surface	23.6″ x 15.7″	33.5″ x 15.7″
Maximum Workload on Table	550 lbs.	550 lbs.
Table Surface	Ground / T-slotted	Ground / T-slotted
No. of T-slots x Width	3 x 18 mm	3 x 18 mm
Table Height from Floor	33.5″	33.5″
Spindle
Spindle Motor	7.5 HP (5 HP opt.)	7.5 HP (5 HP opt.)
Spindle Taper	BBT-30 (Dual Contact)	BBT-30 (Dual Contact)
RPM	0 – 12,000 (0 – 24,000 opt.)	0 – 12,000 (0 – 24,000 opt.)
Spindle Drive	Direct Drive	Direct Drive
ATC – Turret Type (std. for VTX-5)
Number of Tools	21	21
Tool Selection	Bi-directional Fixed	Bi-directional Fixed
Tool Change Time	1.4 sec. Tool to Tool	1.4 sec. Tool to Tool
Chip to Chip Time	1.9 sec. Chip to Chip	1.9 sec. Chip to Chip
Magazine Index Time Adjacent Station	0.1 seconds	0.1 seconds
Magazine Index Time 180°	0.8 seconds	0.8 seconds
Max Tool Diameter	3.15″ with Adjacent Tools	3.15″ with Adjacent Tools
Max Tool Weight	6.6 lbs.	6.6 lbs.
Tool Type	BBT-30	BBT-30
Max Tool Length	7.9″	7.9″
ATC – Arm Type (std. for VTX-5A)
Number of Tools	20 Tools (+1 in the Spindle)	20 Tools (+1 in the Spindle)
Tool Selection	Bi-directional Random	Bi-directional Random
Tool Change Time	.8 sec Tool to Tool	.8 sec Tool to Tool
Chip to Chip Time	1.3 sec Chip to Chip	1.3 sec Chip to Chip
Max Tool Diameter	2.67″ with Adjacent Tools	2.67″ with Adjacent Tools
Max Tool Weight	6.6 lbs.	6.6 lbs.
Tool Type	BT-30	BT-30
Max Tool Length	7.9″	7.9″
Ballscrews and Axis Motors
X – Y – Z Ballscrew Diameter	25mm (1″) x 16 mm Pitch	25mm (1″) x 16 mm Pitch
Ballscrew Type	Class 3 Double Nut Pre-loaded	Class 3 Double Nut Pre-loaded
Ballscrew Mounting Type	Double Anchored	Double Anchored
X – Y – Z Servo Motor HP	2.0 – 3.0 – 3.0 HP	2.0 – 3.0 – 3.0 HP
Servo Motor Mounting	Direct Coupled	Direct Coupled
Feeds
Rapid Traverse Rate X, Y, Z	2,362 IPM	2,362 IPM
Acceleration	1.2G	1.2G
Cutting Feed Rate	0.01 – 787 IPM	0.01 – 787 IPM
Positioning Accuracy	± .0003″ Full Stroke	± .0003″ Full Stroke
Repeatability	± .0002″	± .0002″
General
Coolant Tank Capacity	30 Gallons	30 Gallons
Floor Space	87″ x 63″ x 98″	87″ x 79″ x 98″
Machine Power Source	208/220 Volts, 3 Phase 40 Amps*	208/220 Volts, 3 Phase 40 Amps*
Air Source	90 PSI	90 PSI
Machine Weight	6,270 lbs.	6,570 lbs.

* Consult AMT or Local Distributor for exact power requirements when ordering

Standard Equipment

Flood Coolant System with washdown hose
Air Blast for spindle
Auto Lubrication with alarm
Full Machine Enclosure
Halogen Work Lamp
Chip Flushing System
Preparation for Coolant Through the Spindle (pump system not included)
Rigid Tapping
3 Color Operation Light
Spindle Cooler

Optional Accessories

Marposs VOP optical wireless part probe installed with training
Marposs VOTS optical wireless tool setter installed with training
Marposs VOP part probe + VOTS tool setter PACKAGE installed with training
Marposs WRP radio wireless part probe installed with training
Marposs WOTS radio wireless tool setter installed with training
Marposs WRP radio part probe + WOTS radio tool setter PACKAGE installed with training
Marposs ML75P laser tool setter installed with training
Auto Tool Presetter (Renishaw TS-27 Wired)
Auto Tool Presetter (Renishaw OTS Wireless)
Renishaw NC4+ F145/85 3.35” laser tool setter (hardware only kit)
Renishaw NC4+ F145/85 3.35” laser tool setter installed with 2 days of training
Renishaw OMP-40 part probe for 2-D surfaces (hardware only kit)
Renishaw OMP-40 part probe installed with 2 days training
Renishaw OMP-400 part probe for 3-D surfaces (hardware only kit)
Renishaw OMP-400 part probe installed with 2 days training
Mitsubishi AC Drive for 4th Axis and 4th Axis interface cable set
Mitsubishi AC Drive for 5th Axis and 5th Axis interface cable set
Ganro DR-120 4.7” rotary table with servo motor (4^th axis interface req’d)
Ganro DR-170 6.7”rotary table with servo motor (4^th axis interface req’d)
Ganro DR-200 8” rotary table with servo motor (4^th axis interface req’d)
Mitsubishi M830S control in place of M80A control
440 / 460 / 480 Volt operation
High pressure coolant thru spindle 300 PSI
High pressure coolant thru spindle 1000 PSI
24,000 RPM, 5HP direct drive spindle
Automatic power off
Chip shower system
Column riser block 4” or 6”
Column riser block 8”, 10”, or 12”
Automatic doors
Additional 8 sets of M codes for fixture interfacing
Additional HYD unit and plumbing to supply fixture hydraulics
Caterpillar type chip conveyor
Oil Skimmer
Donaldson Torit MiniMist 1200 centrifugal mist collector
Graphite milling package with dust collection system, lid on top of machine, complete and installed

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