large cnc milling machine
A large cnc milling machine is a type of milling machine used in industrial settings for machining large workpieces. The large cnc milling machine is Moving column type. In this type of machine, the column (the vertical part of the machine that holds the milling spindle) moves along the length of the bed, while the workpiece remains stationary on the bed or table.This design allows for machining of very large and heavy workpieces because the entire column can move along the length of the machine, providing greater flexibility and reach compared to traditional fixed-column milling machines. These machines are commonly used in industries such as aerospace, automotive, and marine for milling large components like aircraft wings, automobile frames, or ship structures.
| Performance | FRT-SP10400 | FRT-SP120450 | FRT-SP150550 | FRT-SP20650 | |
| Travel | |||||
| Work table travel(X/Y/Z) | mm | 10000/4350/1500 | 12000/4850/1500 | 15000/6850/2000 | 20000/6850/2000 |
| Distance from spindle surface to worktable | mm | 100-1600 | 500-2000 | 500-2500 | 500-2500 |
| Gantry Width | mm | 4000 | 4500 | 5500 | 6500 |
| Rail way | Two linear guide rail, one hardened rail | ||||
| Work table | |||||
| Table size | mm | 10000x3500 | 12000x40000 | 15000x4800 | 20000x5800 |
| The maximum load capacity of the workbench | T | 15/㎡ | 15/㎡ | 15/㎡ | 15/㎡ |
| Splindle | |||||
| The spindle taper(model sleeve diameter) | mm | BT50/195 | BT50/220 | BT50/230 | BT50/260 |
| The spindle motor power | kw | 45 | 55 | 65 | 70 |
| Splindle speed | rpm | 4000 | 4000 | 3500 | 3000 |
| Accuracy | |||||
| Position Precision | mm | 0.02/1000 | 0.02/1000 | 0.02/1000 | 0.02/1000 |
| Repeated position precision | mm | ±0.015 | ±0.015 | ±0.015 | ±0.015 |
| Size | |||||
| Net weight | T | 160 | 180 | 220 | 280 |
Large Working Envelope: These machines typically have a large working envelope, allowing them to accommodate oversized workpieces.
High Rigidity: They are built with heavy-duty structures to ensure stability and rigidity during machining operations, even when dealing with large and heavy materials.
Versatile Spindle Configurations: They can be equipped with various spindle configurations, including high-speed spindles for light machining and high-torque spindles for heavy cutting.
Multi-axis Capability: Many gantry mills offer multi-axis machining capabilities, including simultaneous 5-axis or even more complex configurations, enabling intricate machining operations.
Precision Control: Advanced control systems ensure precise movement of the column and cutting tools, resulting in high-quality surface finishes and tight tolerances.
Automatic Tool Changers: They often feature automatic tool changers, allowing for continuous machining without manual intervention.
Coolant Systems: Equipped with efficient coolant systems to dissipate heat generated during machining and prolong tool life.
Functions
Milling: Gantry mills are primarily used for milling operations, including face milling, contouring, and pocket milling.
Drilling: They can perform drilling operations on large workpieces with precision.
Tapping: Some models are capable of tapping threads into workpieces.
Boring: Capable of boring large-diameter holes accurately.
Surface Finishing: Gantry mills can achieve high-quality surface finishes on large components.
applications
Aerospace: Used for machining aircraft components such as wing skins, fuselage sections, and engine parts.
Automotive: Utilized in the manufacturing of car frames, engine blocks, and transmission housings.
Marine: Employed for machining ship components like propellers, shafts, and hull sections.
Heavy Machinery: Used in industries producing large machinery components like turbines, generators, and hydraulic cylinders.
Mold and Die Making: Gantry mills are used for manufacturing large molds and dies for the plastics, automotive, and aerospace industries.
In summary, moving column large gantry mills are robust and versatile machining centers capable of handling large and heavy workpieces with precision, making them essential equipment in various industries requiring machining of oversized components.
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