Long Grinding Length Grinding Machine 4m Length 600 Dia M194

Massive: "Massive" effectively conveys the sense of great size and capacity required for handling 4-meter workpieces and heavy loads. Alternatives like "Large" or "Big" are too generic.

Rigorous: "Rigorous" captures the meaning of being extremely sturdy, strict, and uncompromising in construction for stability. "Robust" or "Sturdy" are also good, but "Rigorous" emphasizes the demanding nature of the requirement.

Precise: "Precise" is the direct and universally understood term for high accuracy in machining. "Precision" (as a noun) could also start the point ("Precision:"), but "Precise" maintains the adjective pattern.

Smart: "Smart" is widely used in manufacturing contexts (Smart Factory, Smart Manufacturing) to indicate intelligence, advanced control, and automation capabilities inherent in modern CNC systems. "Intelligent" is also perfectly valid.