New TONGTAI GT-630-5AX | 5-Axis Vertical Machining Centers

Description

The four-machine Tongtai MDV and GT Series of high speed, high accuracy 5-axis trunnion table machining centers is engineered for complex, precise machining of mold, die, aerospace and medical parts. The machines have heavy Meehanite castings, roller-type linear guideways in linear axes, and zero-backlash roller gear mechanisms in tilt and rotary axes to maximize rigidity and precision. Large diameter double-anchored and pre-tensioned ballscrews with least increment input of 0.0001mm/ 0.00001″ produce positioning accuracy of +/- 0.003mm (0.00012″) and repeatability of 0.0025 mm (0.0001″) with scales.

GT-630
5 Axis Machining Center with Built-In Trunnion Table

Description

The Tongtai GT-630 is a high speed, high accuracy 5 axis trunnion table machining center. This machine delivers outstanding overall performance and value for the complex machining of mold, die, aerospace, and medical parts. The machine features strength from a heavy meehanite casting. Precision comes from roller type linear guideways in the linear axes and a unique, no backlash roller gear mechanism in tilt and rotary axes. Large diameter double anchored and pre-tensioned ballscrews along with least increment input of .0001mm/ .00001” allows positioning accuracy of +/-.00012” and repeatability of .0001” (with scales).

Along with precision comes speed. Rapid traverse rates of 1890”/min in all axes reduce non-cutting times. Powerful servo motors are direct coupled to the large diameter ballscrews. The Z axis produces 2,640 lbs of thrust. A precision, powerful, 30HP (Fanuc) / 39HP (Heidenhain), 15,000 RPM integral spindle provides both low end torque and high speed finishing ability. The spindle is available in both Big Plus 40 taper or HSK-63A. 20,000 RPM integral spindles are also available. The standard spindle is equipped with thermal and vibration protection. In addition, spindle thermal compensation software is standard.

At the heart of the machine is the Japanese built trunnion table. The tilt / rotary table utilizes high torque, high speed, direct drive torque motors and hydraulic clamping. High speed rotation of 100 RPM on the rotary axis and 50 RPM in the tilt axis reduces cycle time. Since this is torque motor system with NO BACKLASH, the table delivers outstanding accuracy of +/- 7 arc seconds and repeatability of only +/- 2 arc seconds utilizing the standard high accuracy rotary scales. A rotary union to supply hydraulics for fixtures is standard!

The GT-630 features and excellent mechanical design. The double column type design feature a patented slide system that is driven at the center of gravity (DCG). DCG provides high speed movement and dynamic stability. The machine design is compact and ergonomic. The center trough, rear discharge chip conveyor allows complete and efficient removal of chips.

The standard 32 tool ATC is extremely reliable and changes tools in only a few seconds! The ATC is mounted in the center – rear of the machine for easy maintenance and is easily accessible for changing out tools. This design minimizes the machine footprint, saving valuable floor space.

An impressive list of standard features includes a center trough caterpillar type conveyor that discharges at the rear of the machine, a high volume 100 gallon coolant system, and a full machine enclosure (including the top) to contain chips and coolant. Your choice of Fanuc controls provides the ideal combination for all types of application. The Fanuc 31iM-B is standard for most job shop and high speed 3-D applications, using the machine in a 4 + 1 axis mode where the 5th axis is positioning only. The Fanuc 31iM-B5 is available for applications requiring simultaneous 5 axis contouring. Both controls feature the new Alpha I servo system with 1,000,000 pulse encoders. The fully loaded Heidenhain TNC-i530 is also available for high performance full 5 axis machining.