Open Cabinet Laser Hardening Machine

Product Overview

This machine features an open cabinet design, combined with a high-power fiber laser and precision motion control system, specially developed for surface laser hardening of large, heavy, and complex-shaped metal components. The open architecture facilitates workpiece lifting, clamping, and in-process inspection, eliminating size limitations of enclosed equipment. Widely used in heavy machinery, metallurgical equipment, mining machinery, shipbuilding, and wind power industries, it significantly enhances surface hardness, wear resistance, and service life through laser phase transformation hardening—an ideal upgrade to traditional surface hardening methods.

Features

– **Open Structure**: Three-side open cabinet with overhead lifting space easily accommodates extra-long, extra-wide, and ultra-heavy workpieces, offering convenient clamping and excellent operational visibility.

– **High-Power Laser**: Equipped with high-performance fiber lasers ranging from 2000W to over 6000W, delivering high energy density, rapid heating, and controllable hardened depth.

– **Precision Motion Control**: Gantry or cantilever motion system with high-precision linear guides and servo drives achieves repeatability of ±0.05mm, ensuring accurate scanning trajectories.

– **Intelligent Temperature Control**: Integrated infrared pyrometer and closed-loop feedback monitor real-time temperature, automatically adjusting laser output for consistent hardened layer quality.

– **Versatile Hardening Head**: Optional rectangular, circular, wobble, or wide-beam spots adapt to various hardening widths and shapes; equipped with collision protection and auto-focus for enhanced safety.

Advantages

– **Distortion-Free Hardening**: Concentrated laser energy minimizes heat input and overall temperature rise, resulting in virtually no thermal deformation—ideal for precision guides, rolls, and long components.

– **Significant Hardness Increase**: Achieves refined martensitic structures, boosting surface hardness by 15%-25% over conventional methods, multiplying wear resistance and extending component life.

– **Eco-Friendly**: No quenching fluids, no smoke or oil pollution; energy consumption only 1/5 of induction hardening, aligning with low-carbon manufacturing.

– **Flexible Production**: Open design supports quick changeovers for various workpiece types; flexible programming accommodates both single-piece small batches and mass production.

– **Selective Hardening**: Precisely targets wear-prone areas, retaining core toughness for superior overall performance.

– **Easy Maintenance**: Open layout simplifies optical alignment, lens cleaning, and laser maintenance, reducing downtime.

Applications

– **Heavy Machinery**: Hardening of large gears, ring gears, mill housings, crusher hammers, excavator buckets, and other wear-resistant components.

– **Metallurgical Equipment**: Surface hardening of rolls, conveyor rollers, pinch rolls, guide plates, chute liners, and high-temperature wear parts.

– **Mining Machinery**: Wear treatment of coal mill rollers, crusher jaws, screens, conveyor drums, and abrasion-resistant parts.

– **Shipbuilding**: Hardening of stern shafts, rudder stocks, deck machinery components, propeller shafts for corrosion and wear protection.

– **Wind Power**: Strengthening of main shafts, yaw bearings, pitch bearings, gearbox gears, and other critical components.

– **Mold Manufacturing**: Local hardening of large stamping dies, forging dies, die-casting mold surfaces to extend mold life.

– **General Machinery**: Precision hardening of machine tool guides, lead screws, hydraulic piston rods, valve sealing faces, and cutting edges.

Technical Specifications

| Parameter | Value |

| Laser Power | 2000W / 3000W / 4000W / 6000W (optional) |

| Travel Range | X: 3000mm, Y: 1500mm, Z: 800mm (customizable) |

| Repeatability | ±0.05mm |

| Hardening Width | Single pass: 2mm – 20mm (adjustable) |

| Hardened Depth | 0.2mm – 2.5mm (adjustable) |

| Scanning Speed | 5 – 50 mm/s |

| Cooling Method | Water cooling / Air cooling |