GMC4520 Extra-Large CNC Gantry Machining Center – 4.5m Travel for Heavy-Duty Industrial Components

Product Overview:
The GMC4520 is a powerhouse in large-scale precision engineering, specifically designed for ultra-long workpieces and heavy industrial molds. With an expansive 4500mm x 1800mm worktable and a robust 34-ton machine weight, this gantry center provides the ultimate stability for high-torque milling. Built on a foundation of high-strength resin-sand cast iron and reinforced with a three-dimensional optimized rib structure, the GMC4520 minimizes thermal deformation and maximizes cutting rigidity for the most demanding projects.

Core Advantages:

  • Massive Working Envelope: Featuring a 4500mm X-axis and 2000mm Y-axis travel, it is the ideal choice for aerospace frames, automotive large-die processing, and energy sector components.
  • Superior Z-Axis Rigidity: The spindle box utilizes a square ram structure supported by four heavy-duty roller linear guides, ensuring smooth vertical movement and excellent vibration absorption during deep-cavity cutting.
  • Precision Drive System: Equipped with 36Nm high-torque servo motors on all three axes and pre-stretched ball screws, achieving a positioning accuracy of 0.03mm over the full 4.5-meter length.
  • Advanced Dynamic Balance: A Liquid Nitrogen Balance System maintains Z-axis stability, reducing motor load and ensuring consistent precision during high-speed feed rates.
  • Industrial Protection: Fully enclosed shielding with a stainless steel telescopic X-axis cover and organ-style Y-axis protection ensures a clean, safe, and durable operating environment.

Applications:
Ideal for heavy-duty milling, drilling, and boring of large steel plates, casting molds, and complex structural parts where precision over a large surface area is non-negotiable.

Quote on request Typical lead time 4–6 days · ISO-minded QA