Jyoti VMC 70 Linear features linear motors

The VMC 70 Linear is the first Jyoti machine tool to feature linear motors. Dual linear motors are used on all axes for maximum dynamics and accuracy for high quality and faster production rates. As there are no mechanical transmission elements, such as lead screws or couplings, natural oscillations and the effects of elasticity, backlash and friction are largely negated. The linear motors are protected from the machining environment and maintained under controlled temperature with a separate chiller unit. Weighing a hefty 21,000 kg the complete machine body is a monoblock construction reinforced with engineered concrete that dampens the high load vibrations of the machine and also reduces noise resonance. The gantry design Y-axis has two drives synchronised by separate position measuring systems to prevent unequal forces. A fixed 900 by 800 mm worktable and the twin-column construction of the gantry ensures minimal moving mass to achieve better machine dynamics while cutting heavier jobs, up to 2,000 kg, with precision. With rapid traverse rates of 100 m/min, axes acceleration of up to 18 m/s2 and cutting feedrates of up to 30 m/min the machine's high dynamics and considerable feed forces improve the speed of machining.