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The Tongtai VP-8 is a high-speed vertical that combines speed, rigidity and precision in a heavy duty Vertical Machining Center for mass production. This machine has features not found on competitive machines at any price. It features large 35mm linear ways on all axes with large diameter pre-tensioned ballscrews and a large diameter rigid spindle for heavy cutting. High power servo motors allow the VP-8 to rapid at 1890 IPM in the X and Y axes with very fast acc / dec times. The Z axis, without a mechanical counterbalance, rapids at 1417 IPM and is ideal for high feed rates. Acceleration in X, Y, and Z is 1.18G, 1.0G, 0.7G respectively. As in any high-quality machine tool, the VP-8 is made from heavy Meehanite FC-30 castings. Cast iron has the strength and vibration dampening characteristics necessary for excellent surface finishes and long cutting tool life. The delta, or triangulated, design distributes cutting forces effectively and provides a rigid and stable machining platform.
A standard 24 tool high-speed synchronous arm type automatic tool changer provides fast 2.0 second tool changes with average chip to chip time of only 3.6 seconds for maximum productivity. The 70mm (2.75”) spindle shaft has 6 bearings for unparalleled stiffness and cutting stability. The standard spindle is 10,000 RPM direct drive dual contact (Big Plus) 40 taper and is oil cooled for thermal stability. A standard 20HP direct drive spindle motor with electronic high / low switch gear provides a range of power and torque. Standard twin screw type chip conveyors remove nearly all chips from the machining area and discharges at the rear of the machine to minimize cleaning time. From there a standard caterpillar lift-up style chip conveyor carries chips to a hopper.
The machine is also prepared for high pressure coolant through the spindle. Optional 300 PSI or 1000 PSI coolant pumps can be added to further enhance productivity. In addition, a standard full splash cover is installed on top of the machine to contain all chips and coolant.
The 36mm (1.4”) diameter ballscrews are class 3 with a double nut pre-loaded design. To eliminate thermal growth and promote high accuracy and high speed positioning, the ballscrews are pre-tensioned. High torque servo motors are direct coupled to the ballscrews for accuracy.
The Mitsubishi M80A control is standard and is suitable for a wide range of applications from production to high speed machining applications. The M80A control features a 10.4” touch screen with intuitive smart phone type operation. A dedicated CNC CPU provides phenomenal processing speeds. An all new high response servo system with 1,000,000 pulse encoders is provided for state-of-the-art speed and accuracy. The Mitsubishi control comes with an industry leading 3 year parts and labor warranty!
Learn more about the vertical machining centers that Absolute Machine Tools has to offer by visiting us on the web – http://absolutemachine.com/vertical-machining-centers.
Absolute Machine Tools, Inc.
7420 Industrial Pkwy Dr
Lorain, OH 44053