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Large gantry CNC machines are important equipment in modern manufacturing. They are favored for their high rigidity, high precision and large working space, and are particularly suitable for processing large and complex workpieces. With the continuous advancement of technology, the performance and functions of these machine tools are continuously improving to meet the growing needs of the manufacturing industry.
Product Introduction
The large gantry CNC machines are typically designed with high rigidity, such as through the use of a gantry frame structure, to ensure stable support and achieve precise machining accuracy. They are engineered to have a large workspace, with an expansive worktable and travel space that can handle large workpieces and cater to a variety of machining requirements. Many of these machines also feature multi-axis linkage capabilities, often five or more axes, enabling them to execute intricate three-dimensional machining tasks. High-speed machining is facilitated by the inclusion of high-speed spindles and rapid movement systems, which reduce machining time and enhance production efficiency. Furthermore, these machines often come with automation functions like an Automatic Tool Change system (ATC), automatic workpiece measurement systems, and automated workpiece clamping systems, all of which minimize manual intervention and increase the level of automation in the machining process.

①. Dual Motor with Anti-Backlash Transmission Structure
High Precision, Heavy Load, High Speed, Low Noise, Longer Service Life.
②. Gear Transmission
High Precision, Heavy Load, High Speed, Low Noise, Longer Service Life.
③. Square Ram and Sliding Seat Structure
Dimension:500x500, Heavy-Duty Design;
Direct-Driven Design;
Large-Size and Heavy-Duty design ensures that the ram is firmly connected;
Three extended sliders at the top and four standard sliders at the bottom.
④. Vertical / Horizontal Automatic Tool Magazine
⑤. Italy BF Gear Box
High-performance speed, low noise. It could expand the motor's constant power range. It is easy to install. The machine can be used in conjunction with multiple series of motors. It can adapt to high-strength tension and small size.
⑥. Extended Angle Milling Head
⑦. Automatic Hydraulic Angle Milling Head
⑧. Two-Way Spindle Angle Milling Head
New design Large CNC Double Column Gantry GMMD-21046 Parameters
| Model | GMMD-21046 | ||
| Subject | Specifications | Units | |
| Travel | X-Axis | mm | 22000 |
| Y-Axis | mm | 4600 | |
| Z-Axis | mm | 1500 | |
| Spindle Nose to Worktable | mm | 350-1850 | |
| Three-Axis Guideway | X/Geared Transmission , Y/ Heavy Load Roller Linear Guideway, Z/T-Shape Slide | ||
| Door Width | 4600 | ||
| Type of Ram | Square-Type Ram (500 * 500) | ||
| Worktable | Worktable Size(L*W) | mm | 21000*3500 |
| Maximum Table Load | t | 50 | |
| T-Slot | mm | 36*200 | |
| Spindle | Spindle Type | type | BBT-50 |
| Spindle R.P.M. | rpm | 6000 | |
| Spindle Drive Type | DDS | ||
| Feedrate | Rapid Traverse (X/Y/Z) | m/min | 6/8/8 |
| Cutting Feedrate (X/Y/Z) | m/min | 6 | |
| Tool Changer | ATC | 24 (Option: 40/60) | |
| Motor | Spindle Motor | KW | 17-42 |
| Three-Axis Servo Motor | KW | 5.2/5.2/5.2 | |
| Power Required | Power Requirement | kva | 60 |
| Air Pressure Requirement | kg/cm² | 6^8 | |
| Others | External Dimensions (L*W*H) | mm | 24000x5860x5800 |
| Gross Weight | t | 173 | |
Standard Accessories
| Automatic Tool Change System (ATC) | Wheel Truing Base | Geared Box |
| Tool Library | PLC Controller | Leveling Bolts and Pads |
| Cooling System | Touch Screen | M30 Auto Off |
Options
| Optical Linear Scale | Diamond Pen | Oil Mist System |
| CTS | Magnetic Cooling System | Oil Skimmer |
| 20T/40T/60T ATC | Grinding Wheel Balance Frame | Manual/Semi-Auto 90Milling Head |
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