Laser-Oxyfuel Hybrid Cutting Machine Capable of Cutting Ultra-Thick 200mm Carbon Steel Plates

The CK-3200-FCG Laser-Flame Hybrid Fiber Laser Cutting Machine innovatively integrates fiber laser cutting technology with flame cutting technology, providing an integrated solution for efficient processing of both medium-thickness sheets and ultra-thick carbon steel plates.

The machine is capable of handling conventional metal sheet processing as well as carbon steel plates with thicknesses of up to 200mm. By reducing the need for multiple machines, it effectively lowers equipment investment and production space costs. It is an ideal solution for high-efficiency manufacturing in industries such as steel structures, machinery manufacturing, heavy equipment fabrication, and engineering processing.

The CK-3200-FCG supports two cutting modes: Pure Laser Cutting and Laser-Flame Hybrid Cutting (Laser-Oxyfuel Hybrid Cutting), allowing operators to switch between modes with one click according to material thickness and production requirements.

• ⚡ Pure Laser Cutting Mode

  In pure laser cutting mode, the machine can stably process commonly used metal materials, including carbon steel, aluminum, and stainless steel plates with thicknesses ranging from 1mm to 50mm.

  With its high-energy-density laser beam, the machine delivers high-speed cutting performance and precise dimensional control, meeting the requirements of high-volume and high-precision processing for medium and thin metal sheets.

• 🔥 Laser-Flame Hybrid Cutting Mode

  The laser-flame hybrid cutting mode is designed for ultra-thick carbon steel processing, achieving a maximum cutting thickness of 200mm.

  During the cutting process, the system automatically ignites the mixed fuel gas (such as propane) and oxygen, generating a surrounding flame. At the same time, the laser beam rapidly heats the material to its ignition temperature. The laser then creates an initial piercing hole on the plate surface, after which the system performs laser-flame hybrid cutting.

  During cutting, the moving laser beam continuously heats the cutting front to maintain the material at its ignition point. Meanwhile, high-pressure oxygen is injected into the heated metal area, triggering an intense oxidation reaction that penetrates the thick plate. The high-pressure oxygen flow removes the molten slag, forming a clean cutting kerf.

  After processing, the cut surface features excellent verticality, smoothness, and uniform cutting marks. Even if a small amount of slag remains, it can be easily removed.

  The laser preheating function effectively eliminates the long preheating time required in conventional oxyfuel cutting, significantly improving thick-plate cutting efficiency. Laser-assisted cutting also produces a narrower kerf, a smaller heat-affected zone (HAZ), and improved cut-edge verticality.

To meet the pre-processing requirements of the steel structure and heavy manufacturing industries, the CK-3200-FCG comes standard with a professional bevel cutting system equipped with a high-performance AB rotary bevel cutting axis, enabling dynamic verticality compensation. The system supports bevel cutting within a range of ±45° under both laser cutting and laser-flame hybrid cutting modes. It can perform common bevel types including V, X, Y, and K grooves, as well as complex processes such as intersecting line cutting and variable-angle bevel cutting.

The CK-3200-FCG adopts a ground-rail modular bed design, which meets ultra-large-format processing requirements while effectively lowering the machine's center of gravity and improving operational stability. The modular bed structure allows flexible expansion and enables customization of the working dimensions according to actual production requirements.

The machine bed and worktable feature a separated structural design, effectively reducing the impact of high-temperature cutting heat on the main structure, minimizing the risk of thermal deformation, and maintaining long-term machining accuracy and stability.

The machine adopts a dual-level worktable configuration:

• High-level worktable: Designed specifically for precision fiber laser cutting, meeting the requirements of high-accuracy processing for medium and thin metal sheets.
• Low-level worktable: Designed for laser-flame hybrid cutting of thick plates, offering higher load capacity and impact resistance to ensure stable processing of large and heavy steel plates.

Details of the Large-Format Laser-Flame Hybrid Cutting Machine

Ground-rail modular machine bed

The machine bed adopts a modular design, allowing flexible expansion according to production requirements. The ground-rail structure significantly lowers the machine's center of gravity, enabling support for larger working areas while improving overall stability.

Modular large-format worktable

The worktable features an extra-large working area of 12,000mm × 3,200mm and supports modular expansion, allowing flexible adaptation to workpieces of various sizes.

Maxphotonics(MAX) 20kW fiber laser source

Equipped with a 20kW ultra-high-power fiber laser source, the machine easily handles thick-plate cutting applications while delivering outstanding reliability and continuous operation capability.

BOCHU BLTF60 laser cutting head

The BLTF60 is a high-end laser cutting head from BOCHU, compatible with both standard laser cutting and laser-flame hybrid cutting. The mode switching process can be completed within 60 seconds by simply replacing the nozzle, providing efficient and convenient operation.

The laser head also features an intelligent ignition function, which automatically ignites the fuel gas before piercing without any manual intervention.

In addition, it integrates advanced functions including:

• Piercing slag removal
• Verticality correction
• Fuel gas leakage detection
• Independent monitoring of three gases

With the addition of A/B rotary axes, the laser head can perform bevel cutting with a maximum angle of 45°.

Bevel cutting with intelligent compensation

It supports bevel cutting up to ±45° under both laser cutting mode and laser-flame hybrid cutting mode, including common bevel types such as V, X, Y, and K grooves.

The system automatically adjusts cutting parameters to compensate for verticality deviation, ensuring consistent processing quality.

Automatic ignition & automatic slag removal

The system-controlled automatic ignition function improves operational convenience and safety.

The automatic slag removal function cleans molten residue generated during the piercing process before cutting, effectively preventing slag adhesion from affecting cut quality.

Safety light curtain protection

A safety light curtain is installed on the crossbeam to monitor the working area in real time. When personnel or foreign objects enter the protected zone, the machine immediately stops operation, providing comprehensive protection for operators.

Hanli 20kW chiller

The 20kW chiller provides a maximum cooling capacity of 50kW and delivers efficient cooling for both the laser source and cutting head.

Equipped with a high-flow pump, the system enables faster coolant circulation, improved heat transfer efficiency, and precise temperature control with an accuracy of ±1°C.

Fully enclosed cable carrier

The fully enclosed cable carrier organizes and houses most of the cables, preventing cable tangling while protecting the cables from damage caused by laser radiation or flame cutting heat

BOCHU FSCUT9100 system

The FSCUT9100 is a high-end bus-based laser cutting control system developed by BOCHU for medium- and high-power laser cutting machines.

It supports advanced functions including:

• Deformation compensation
• Bevel editing
• Bevel nesting
• Convex head cutting
• Secondary bevel cutting
• Vision calibration

Technical Parameters of the Large-Format Laser-Oxyfuel Hybrid Cutting Machine

Cutting Capabilities of the Large-Format Laser-Flame Hybrid Cutting Machine

Note: The parameters provided above are for reference only. Actual cutting performance may be affected by various factors, including material quality, gas quality, and other operating conditions. Therefore, these parameters shall not be used as the basis for equipment acceptance or quality claims. CATEKCNC reserves the right of final interpretation.

Features of the Large-Format Laser-Flame Hybrid Cutting Machine

1. Ground-Rail Machine Bed with Modular Worktable

The laser cutting machine features a ground-rail machine bed with an expandable design to accommodate various production requirements. Standard bed lengths are available in 12 m, 14 m, 20 m, 24 m, and 28 m, providing flexible solutions for processing metal plates of different sizes.

The ground-rail structure lowers the machine's center of gravity, providing excellent stability while supporting extra-large-format processing.

The worktable is structurally separated from the machine bed, effectively preventing heat generated during cutting from being transferred to the machine structure. This design also minimizes vibration transmission from the machine to the worktable, helping maintain cutting accuracy and long-term structural stability.

The modular worktable allows individual table sections to be added or removed according to production requirements. Its modular design also makes slag removal, routine maintenance, and component replacement faster and more convenient.

2. Maxphotonics 20kW Fiber Laser Source

The machine is equipped with a 20kW Maxphotonics fiber laser source featuring a 1080 nm center wavelength and a continuously adjustable power range from 10% to 100%.

Depending on the fiber core diameter (150 μm–200 μm), the Beam Parameter Product (BPP) ranges from 5 to 6.5 mm·mrad, ensuring outstanding cutting precision and excellent edge quality.

The laser source offers high electro-optical conversion efficiency, superior beam quality, and stable energy output, making it ideal for both high-speed thin-sheet cutting and ultra-thick plate processing.

3. BOCHU BLTF60 Intelligent Laser Cutting Head

The BOCHU BLTF60 intelligent laser cutting head supports both pure laser cutting and laser-flame hybrid cutting, with mode switching completed in as little as 60 seconds.

Its automatic ignition function ignites the fuel gas before the piercing process begins, eliminating manual operation while improving both productivity and operational safety.

The cutting head also features automatic piercing slag removal and automatic verticality correction, ensuring more stable cutting performance and smoother cut surfaces.

For enhanced operational safety, the BLTF60 incorporates a comprehensive gas monitoring and protection system. Integrated sensors continuously monitor fuel gas concentration, while the control software displays real-time operating status. In the event of abnormal gas conditions, the system immediately issues an alarm and automatically stops the machine. This intelligent monitoring system ensures stable gas supply, reduces cutting defects, minimizes safety risks, and improves overall process reliability.

The cutting head is also equipped with a collision protection mechanism. In the event of accidental contact with a workpiece, the lower section of the cutting head quickly separates from the upper assembly, significantly reducing the risk of damage and minimizing maintenance costs.

4. Dual Cutting Modes: Pure Laser & Laser-Flame Hybrid

The machine supports both pure laser cutting and laser-flame hybrid cutting, allowing rapid switching between the two modes to accommodate different material thicknesses and processing requirements.

Pure laser cutting mode is designed for high-speed, high-precision processing of thin and medium-thickness metal sheets.

Laser-flame hybrid cutting mode is specifically developed for machining ultra-thick carbon steel plates, with a maximum cutting capacity of 200 mm, making it an ideal solution for heavy-duty thick-plate applications.

Both cutting modes support bevel cutting, enabling the production of a wide range of bevel types, including V-, X-, Y-, and K-grooves, to meet various welding preparation requirements.

5. Inovance EtherCAT Absolute Servo System

The machine is equipped with Inovance EtherCAT bus servo motors featuring 23-bit absolute encoders, providing high positioning resolution and outstanding repeatability.

With an IP54 protection rating, the servo motors are designed to operate reliably in demanding industrial environments characterized by dust, continuous operation, and heavy workloads.

The motors incorporate an optimized electromagnetic design, a high-efficiency forced-air cooling system, and built-in thermal protection to improve heat dissipation and operational reliability, ensuring stable performance even during prolonged high-load operation.

Based on the EtherCAT industrial Ethernet fieldbus communication protocol, the servo system enables fully integrated bus control with simplified wiring, reliable signal transmission, and highly accurate multi-axis synchronization, further enhancing the machine's motion control performance and machining accuracy.

6. KOFON High-Precision Planetary Gear Reducers

The machine is equipped with KOFON high-precision planetary gear reducers manufactured from low-carbon alloy steel. The gears undergo deep carburizing and quenching heat treatment, achieving a surface hardness of up to HRC 60.

The reducers feature gear backlash of less than 3 arc-minutes and gear accuracy compliant with the ISO Grade 4 standard, ensuring highly accurate power transmission.

Finite Element Analysis (FEA) is used to optimize gear strength, while world-class gear grinding equipment is employed to precisely refine the tooth profile and lead geometry. This minimizes meshing impact and operating noise while significantly extending gearbox service life.

Each reducer is factory-filled with high-performance lubricating grease, providing virtually maintenance-free operation throughout its service life.

7. Safety Light Curtain

The laser-flame hybrid cutting machine is equipped with high-sensitivity safety light curtains on both the front and rear sides of the crossbeam, creating a complete protective barrier around the working area.

During machine operation and movement, the system continuously monitors the surrounding environment in real time. Once personnel or foreign objects enter the hazardous operating zone, the safety system immediately sends an alarm signal and triggers an emergency stop, rapidly interrupting dangerous movements.

This effectively prevents collision-related safety incidents and provides comprehensive protection for operators throughout the production process.

8. Hanli 20kW Chiller

The Hanli 20kW chiller system provides independent cooling for both the laser source and the laser cutting head.

Equipped with a user-friendly digital temperature controller, high-quality compressor, and condenser, the chiller delivers efficient and reliable cooling performance.

It provides a maximum cooling capacity of 50kW and features a 160L water tank capacity. Temperature fluctuations can be controlled within ±1°C, while the system supports a wide operating temperature range of -20°C to 40°C, ensuring stable operation under various industrial conditions.

9. Fully Automatic Lubrication System

The machine is equipped with a fully automatic centralized lubrication system, which automatically supplies lubricant to key transmission components such as guide rails and ball screws according to preset lubrication intervals and quantities.

This eliminates the need for frequent manual lubrication and significantly reduces daily maintenance workload.

Compared with manual lubrication, the automatic lubrication system provides more precise, uniform, and continuous lubrication, ensuring that all transmission components remain in optimal operating condition.

It effectively reduces mechanical wear, extends component service life, and ensures long-term equipment stability and consistent machining accuracy.

10. Fully Enclosed Cable Carrier & Bellows Protective Covers

The laser-flame hybrid cutting machine adopts a fully enclosed cable carrier system for organized and secure cable management. It effectively prevents cable pulling, bending, and wear, ensuring stable electrical signal transmission and long-term cable reliability.

The X/Y axes are equipped with fully enclosed bellows protective covers, which effectively isolate dust, smoke, and sparks generated during cutting, preventing damage to cables and protecting critical transmission components from heat and contamination.

11. BOCHU FSCUT9100 System

For advanced human-machine interaction and intelligent process control, the machine is equipped with the BOCHU FSCUT9100 bus-based laser cutting control system and the WKB-V6H wireless controller.

The control system supports a wide range of advanced functions, including:

Deformation Compensation: The system adopts proprietary algorithms to compensate for plate deformation, effectively improving bevel cutting accuracy and ensuring consistent processing quality.

Bevel Editing: The system supports conventional bevel types such as V, Y, X, and K grooves, as well as special bevel geometries including intersecting bevels, variable-angle bevels, and square-to-round transition bevels. It is optimized for various cutting strategies, including single-pass cutting and multi-pass cutting, significantly improving drawing efficiency and process flexibility.

Bevel Nesting: The professional CypNest nesting software supports CAD/Tekla/Tribon (AM) part file import, bevel editing, and mixed nesting of straight-cut and bevel-cut parts, greatly simplifying the entire workflow from drawing → nesting → machining.

Secondary Bevel Cutting: The system supports secondary bevel cutting on parts that have already been straight-cut, enabling efficient material utilization and reducing waste.

Vision Calibration: The vision calibration system provides highly accurate model parameter recognition with fast data acquisition. One-click calibration makes operation simple and convenient, while eliminating the need for mechanical adjustment during future maintenance.

Convex Head Cutting: The system supports hole cutting on pressure vessel heads and end caps, making it widely applicable in industries such as pressure vessel manufacturing and wind power equipment fabrication.

Applications of the Large-Format Laser-Flame Hybrid Cutting Machine

Construction Machinery Industry

Industry Demands: The construction machinery industry involves the manufacturing of structurally complex components designed for extremely demanding load-bearing conditions, including excavators, loaders, bulldozers, agricultural machinery frames, mining equipment protection plates, crane outriggers, hydraulic components, and chassis parts. Typical materials include high manganese steel, high-strength alloy steel, Q355B, and Q235 thick carbon steel plates. Most workpieces are medium- and thick-plate components requiring excellent structural stability, load-bearing strength, dimensional accuracy, and cut-edge quality.

Reasons for Selection: The heavy-duty laser-flame hybrid cutting machine combines laser cutting and flame cutting technologies, enabling efficient processing of high-strength, high-hardness, and thick metal materials. It can easily perform high-efficiency cutting and bevel processing on thick carbon steel, alloy steel, and manganese steel, making it an ideal solution for heavy machinery component manufacturing.

Steel Structure Construction Industry

Industry Demands: The steel structure construction industry mainly involves the fabrication of industrial building structures, bridge structures, steel structure facilities, large machine frames, structural columns, beams, connection plates, reinforcement supports, and other components. Common materials include Q235B and Q355B carbon steel plates, low-alloy high-strength steel plates, and large-format steel plates. Workpieces are generally large in size with a wide range of material thicknesses, requiring high-volume production, full-sheet nesting, and bevel processing. Strict requirements are placed on cutting edge verticality, flatness, and assembly accuracy.

Reasons for Selection: The laser-flame hybrid cutting machine adopts a ground-rail machine bed, supporting ultra-large-format plate processing without the need for segmented cutting and reassembly, effectively eliminating cumulative errors caused by plate splicing. The laser-flame hybrid cutting capability enables stable and efficient processing of extremely thick plates commonly used in steel structure fabrication.

Shipbuilding & Heavy Marine Industry

Industry Demands: The shipbuilding and heavy marine industry mainly involves the processing of heavy components such as ship deck structures, bulkhead panels, marine protection plates, pipe supports, ship ballast components, port crane components, reinforcement connectors, and hull embedded parts. Typical materials include high-strength steel, wear-resistant carbon steel, and thick alloy steel plates. These materials feature excellent corrosion resistance, impact resistance, and high strength, while workpieces are generally characterized by large dimensions and substantial thickness.

Reasons for Selection: The ground-rail laser-flame hybrid cutting machine features an ultra-large working area and supports plate cutting up to 200mm thick, covering almost all commonly used plate thickness requirements in shipbuilding applications. In addition, shipyards commonly use powder marking to identify subsequent welding positions on steel plates. The FSCUT9100 laser cutting control system provides an automated solution integrating laser cutting and powder marking, significantly improving powder marking efficiency and reducing manual operation requirements in shipbuilding production.

Wind Power & Renewable Energy Industry

Industry Demands: The wind power and renewable energy industry mainly processes components such as wind turbine tower connectors, support structures, base ballast plates, protective panels, reinforced structural components, tower flange connection plates, and maintenance brackets. Typical materials include low-alloy low-temperature-resistant steel plates, Q235 carbon steel plates, and high-strength steel plates. These materials feature excellent low-temperature resistance, fatigue resistance, and high strength, making them suitable for harsh outdoor operating environments. Workpieces are generally large-sized and heavy-duty structural components, requiring strict control of cutting accuracy, bevel consistency, and structural strength.

Reasons for Selection: The machine’s ultra-large worktable enables full-sheet cutting of oversized wind power components. The laser-flame hybrid cutting mode provides stable processing capability for high-strength, weather-resistant thick plates used in wind power equipment, meeting the demanding requirements of renewable energy component manufacturing.

Pressure Vessel & Tank Manufacturing Industry

Industry Demands: The pressure vessel and tank manufacturing industry mainly involves the processing of key components such as gas storage tanks, pressure vessels, water tanks, flange plates, pipe seat openings, tank reinforcement rings, and end-cap components. Common materials include Q245R and Q345R pressure vessel steel plates, thick carbon steel plates, and low-alloy heat-resistant steel plates. Workpieces are often curved or irregularly shaped components, circular flanges, and curved head sections. Due to complex processing requirements, extremely high standards are placed on hole-cutting accuracy, bevel angles, and plate flatness. The quality of these components directly affects the sealing performance, pressure resistance, and operational safety of the finished vessels.

Reasons for Selection: The fiber laser and flame hybrid cutting machine is equipped with a professional bevel cutting system, enabling flat cutting and multi-angle bevel processing to precisely meet the welding preparation requirements of pressure vessel manufacturing. In addition, head cutting is one of the key advantages of the FSCUT9100 system, supporting irregular bevel cutting on vessel heads and precision hole cutting on flange components.

Rail Transit Manufacturing Industry

Industry Demands: The rail transit manufacturing industry mainly processes critical load-bearing structural components such as locomotive underframes, bogie frames, side beams, cross beams, traction beams, and coupler mounting plates. Typical materials include Q345E, Q460E weather-resistant structural steel, and other high-strength steels. Large underframe components can reach lengths of more than ten meters, requiring extremely high dimensional accuracy and geometric tolerances. Bogie components often feature complex contours with extensive requirements for Y-grooves, K-grooves, single-sided V-grooves, and intersecting line cutting. Strict consistency is required for bevel angles and root face dimensions.

Reasons for Selection: The CK-3200-FCG's ground-rail long-stroke machine bed is ideally suited for full-sheet processing of locomotive underframes and large structural components, ensuring overall dimensional accuracy for ultra-long workpieces. The pure fiber laser cutting mode enables high-speed, high-precision processing of irregular medium- and thin-sheet components up to 50mm thick, delivering smooth cut edges and minimal dimensional deviation. The laser-flame hybrid cutting mode provides stable processing capability for thick carbon steel structural components exceeding 50mm. Combined with the AB rotary axis and advanced control system, the machine can accurately perform complex bevel cutting and intersecting line processing, including Y- and K-grooves, in a single setup, meeting the high-precision welding and assembly requirements of bogies and other critical rail transit components.