Description
Industrial CNC Tube Laser Cutter LT240 – 2KW Fiber Laser System
The LT240 CNC Tube Laser Cutter is a high-performance industrial solution engineered for the precision processing of metal pipes and profiles. Equipped with a 2000W fiber laser source and a 240mm automatic pneumatic chuck system, this machine is designed for high-throughput environments requiring consistent accuracy across diverse geometries, including round, square, rectangular, and various open profiles like U-beams and L-angles.
The LT240 architecture prioritizes structural rigidity and thermal stability. The machine bed is constructed from high-tensile carbon steel, subjected to rigorous heat treatment and vibration stress relief to ensure the frame remains deformation-free over decades of continuous operation. This stability is critical for maintaining the micron-level tolerances required in automotive, aerospace, and heavy machinery manufacturing.
High-Precision 240mm Automatic Pneumatic Chuck System
The heart of the LT240 is its dual-chuck pneumatic clamping system. Unlike manual or semi-automatic alternatives, the LT240 utilizes fully integrated pneumatic actuators that provide self-centering capabilities. This ensures that the tube is perfectly aligned with the rotational axis (A/B axis) within seconds, significantly reducing setup times and human error.
The 240mm diameter capacity allows for a wide range of industrial applications. The chucks are designed with a multi-point clamping pressure regulation system, which is essential when processing thin-walled tubes. By adjusting the pneumatic pressure via the CNC interface, operators can prevent tube deformation while maintaining enough clamping force to handle high-speed rotations and rapid accelerations. The chucks also feature a through-hole design, facilitating the processing of long-format raw materials without manual repositioning.
Zero-Tailing Technology and Material Efficiency
Material waste is a primary cost driver in tube fabrication. The LT240 incorporates a specialized “Zero-Tailing” or “Ultra-Short Tailing” mechanical configuration. By utilizing a synchronized movement between the front and rear chucks, the system allows the cutting head to process material extremely close to the clamping point. In a standard two-chuck configuration, the LT240 minimizes scrap to less than 100mm. When configured with an optional three-chuck system, the machine can achieve near-zero tailing, effectively utilizing the entire length of the raw material and maximizing ROI per pipe.
2KW Fiber Laser Source and Optical Path Stability
The 2000W fiber laser source provides the optimal balance between power consumption and cutting thickness. The system utilizes a high-quality fiber resonator (IPG or Raycus) known for its high wall-plug efficiency and beam quality (M² < 1.1). The 1070nm wavelength is ideal for high-absorption rates in carbon steel, stainless steel, aluminum, and brass.
The optical path is fully enclosed and pressurized with filtered air to prevent dust contamination. The cutting head features an autofocus mechanism that adjusts the focal point in real-time based on the material thickness and the specific profile geometry. This is particularly important for square and rectangular tubes, where the distance between the nozzle and the material surface changes rapidly at the corners. The autofocus system ensures a consistent kerf width and a burr-free finish across the entire perimeter of the tube.
Motion Control and Drive Mechanics
To translate the 2KW laser power into productive output, the LT240 employs a high-dynamic motion system. The X and Y axes are driven by Yaskawa or Delta high-torque servo motors coupled with precision rack and pinion sets (YYC/APEX). The rotational axes (A/B) utilize high-precision gear reducers to ensure zero backlash during high-speed indexing.
The linear guides are sourced from HIWIN or PMI, featuring a heavy-duty load rating and high-speed capability. The integration of these components allows the LT240 to achieve positioning accuracies of ±0.03mm and repeatability of ±0.02mm. This level of precision is maintained even during high-speed cornering, thanks to the advanced look-ahead algorithms in the CNC controller.
CypTube CNC Control and Nesting Integration
The LT240 is powered by the CypTube CNC system, an industry-standard interface specifically optimized for tube laser cutting. The software supports the direct import of 3D CAD files (IGS, STEP formats), eliminating the need for complex manual programming. The integrated nesting software automatically calculates the most efficient layout of parts on the raw tube, accounting for weld seams and material defects.
Key features of the control system include:
– Automatic centering and deviation compensation for bowed or twisted tubes.
– Real-time monitoring of gas pressure and laser power.
– “Frog-jump” lift logic to minimize non-productive travel time between cuts.
– Corner power modulation to prevent over-burning on sharp radii.
Technical Specifications Table
| Parameter | Technical Specification |
|---|---|
| Laser Source Power | 2000W (2KW) Fiber Laser |
| Maximum Tube Diameter (Round) | 240mm |
| Maximum Tube Side (Square) | 170mm x 170mm |
| Maximum Tube Length | 6000mm (Optional 9000mm/12000mm) |
| Chuck Type | Full-Stroke Pneumatic Automatic Chuck |
| X/Y Axis Positioning Accuracy | ±0.03mm |
| X/Y Axis Re-positioning Accuracy | ±0.02mm | Maximum Rotation Speed | 120 RPM |
| Maximum Acceleration | 1.0G |
| Minimum Tail Material | ≤100mm (Standard) / <50mm (Optional) |
| CNC Control System | CypTube / HypCut |
| Cutting Head | Raytools / Precitec with Auto-Focus |
| Servo Motor System | Yaskawa (Japan) / Delta (Taiwan) |
| Linear Guide Rails | HIWIN / PMI (Taiwan) |
| Cooling System | Dual-Temperature Industrial Water Chiller |
| Power Supply Requirements | 380V/50Hz/60Hz (3-Phase) |
| Auxiliary Gas Support | Oxygen (O2), Nitrogen (N2), Compressed Air |
| Machine Weight | Approx. 4,500 kg |
Industrial Applications and Material Versatility
The LT240 is designed for versatility across multiple sectors. In the furniture industry, it provides clean, weld-ready cuts on thin-walled steel tubing. In the construction and infrastructure sector, it handles heavy-duty profiles for structural frames. The ability to cut complex geometries—such as interlocking joints, miter cuts, and intricate hole patterns—removes the need for secondary processes like drilling, milling, or sawing.
The 2KW power rating is particularly effective for:
– Carbon Steel: Up to 16mm thickness.
– Stainless Steel: Up to 8mm thickness.
– Aluminum: Up to 6mm thickness.
– Brass/Copper: Up to 4mm thickness.
By utilizing Nitrogen as an auxiliary gas, the LT240 produces oxide-free edges on stainless steel, which is critical for components that require subsequent painting or high-aesthetic finishes. For carbon steel, Oxygen-assisted cutting provides high speeds on thicker sections, while high-pressure compressed air can be used as a cost-effective alternative for thinner gauges.
Maintenance and Long-Term Reliability
The LT240 is engineered for low maintenance. The fiber laser source has a diode life exceeding 100,000 hours, requiring no internal gas or mirror alignments. The machine includes an automatic lubrication system that services the linear guides and rack-and-pinion assemblies at programmed intervals, ensuring smooth motion and preventing premature wear. The electrical cabinet is dust-proof and equipped with an independent air conditioner to maintain optimal operating temperatures for the CNC controller and servo drives, even in harsh industrial environments.