GMC4520 CNC Gantry Machining Center
GMC4520 Extra-Large CNC Gantry Machining Center – 4.5m Travel for Heavy-Duty Industrial Components
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.
| Item | Specification | Details |
| Worktable | Table Size | 4500mm x 1800mm |
| Max. Load Capacity | 8T | |
| T-slot (Width x Gap x Qty) | 22 x 200 x 7 | |
| Travel Range | X-axis Travel | 4500 mm |
| Y-axis Travel | 2000 mm | |
| Z-axis Travel | 1000 mm | |
| Distance Between Columns | 2000 mm | |
| Spindle | Speed Range | 6000 r/min |
| Motor Power | 15 / 18.5 kW | |
| Max Torque | 143 NM | |
| Spindle to Table (Min/Max) | 200 - 1120 mm | |
| Taper | BT50 / 190 | |
| Servo & Feed | Motor Torque (X/Y/Z) | 36 / 36 / 36 Nm |
| Rapid Traverse (X/Y/Z) | 10 / 10 / 10 m/min | |
| Cutting Feed Rate | 1 - 10000 mm/min | |
| Accuracy | Positioning (X/Y/Z) | 0.03 / 0.018 / 0.015 mm |
| Repeatability (X/Y/Z) | 0.02 / 0.015 / 0.012 mm | |
| Squareness (X/Y) | ±0.015 / 300 mm | |
| General | Machine Weight (Approx.) | 34T |
| Overall Dimensions | 11000 x 3500 x 3700 mm |