With rapid traverse speeds up to 2,362 ipm in all axes and acceleration of 1.2 g, the Tongtai VTX series of drilling and tapping centers are fast, affordable solutions for high-precision, high-volume machining applications. The machines’ compact 87 x 63 in. footprint conserves shop floor space, and a fixed column/moving table type design with Meehanite cast-iron frames and roller-type linear slideways provide rigidity and fast, precise movement.
Two types of high-speed ATC systems are available. The 21-tool turret-type ATC on VTX-5 and VTX-7 models offers tool change time of 1.4 seconds tool-to-tool and 1.9 seconds chip-to-chip. VTX-5A and 7A versions have a 20-tool arm-type ATC system that reduces tool change time to 0.8 seconds tool-to-tool and 1.3 seconds chip-to-chip.
The 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 speeds for machining aluminum and magnesium parts and is an excellent choice for processing graphite. A BBT-30 (Big Plus dual contact) taper is standard for rigid milling. Coolant-through the spindle preparation also is standard, as is a spindle chiller.
A Mitsubishi M80A control is standard and is suitable for applications ranging from production to high-speed machining. It features a 10.4-in. touch screen with intuitive smart-phone type operation. A dedicated CNC CPU provides outstanding processing speeds. State-of-the-art speed and accuracy results from an all-new high-response servo system with 1,000,000 pulse encoders. The Mitsubishi M80A control comes with industry-leading 3-year parts and labor warranty. A Fanuc OiM-F control with 8.4-in. LCD with a 2-year warranty is also available. Absolute Machine Tools partner Tongtai formerly was the Taiwanese OEM for Japanese machine tool builder Hitachi-Seiki.
