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Heavy Duty Tube Laser Cutting Machine LX-K73

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Heavy Duty Tube Laser Cutting Machine LX-K73 | LONX LASER

The LX-K73 Heavy Duty Tube Laser Cutting Machine by LONX LASER is a robust, high-precision industrial laser pipe processing system specifically engineered for massive structural steel, large-diameter pipes, and heavy profiles.

Designed to replace traditional sawing, drilling, and manual plasma cutting, the LX-K73 integrates a 730mm full-stroke pneumatic chuck system, 33-ton heavy-duty annealed machine bed, and intelligent follow-up support mechanism. With a single-tube loading capacity of up to 4,000 kg and processing length up to 12 meters, the LX-K73 provides an unparalleled laser cutting solution for structural steel fabrication, shipbuilding, and heavy machinery industries

???? Core Highlights

  • Extra-Large Processing Range: Cuts round tubes up to Φ710mm and square tubes up to 500x500mm.

  • Massive Payload Capacity: Supports individual pipe weights up to 4,000 kg (<=333 kg/m).

  • Ultra-Short Tailing (Zero-Tailing): Advanced chuck avoidance mechanism ensures zero tailing under applicable conditions, maximizing raw material utilization.

  • Versatile Profile Processing: Easily cuts H-beams, I-beams, channel steel, angle steel, and custom structural profiles.

 Key Applications & Compatible Materials

Target Industries

  • Steel Structure & Tower Construction: Precision processing of heavy structural columns, trusses, and beam connection holes.

  • Shipbuilding & Marine Engineering: High-efficiency thick-walled marine pipe cutting.

  • Bridge Engineering & Infrastructure: Heavy profile cutting with structural integrity.

  • Petroleum Pipelines & Engineering Machinery: Precision pipe cutting for oil rigs and heavy machinery frames.


Processing Capabilities & Materials

  • Materials: Carbon steel, stainless steel, aluminum alloy, copper, and special steel alloys.

  • Profiles Supported: Round tubes, square tubes, rectangular tubes, Channel Steel (10#-40#), Angle Steel (50x50-250x250mm), I-Beam (10#-45#), and H-Beam (HW, HM, HN series).

Main Structural Components & Intelligent Systems

  1. Annealed Machine Bed Frame: Welded from premium steel plates and subjected to high-temperature annealing and precision gantry milling, guaranteeing zero structural deformation over decades of high-intensity operations.

  2. 730mm Full-Stroke Pneumatic Chuck: Features a rail-driven four-jaw mechanism providing up to 25 rpm rotational speed and 0.05 mm repeat accuracy, holding heavy 4000 kg pipes securely.

  3. Multi-Point Follow-Up Support System: Dynamically adjusts support height according to pipe rotation to minimize sag and ensure cutting consistency on 12m long heavy pipes.

  4. BOCHU Intelligent CNC & Nesting System: Supports automatic edge finding, four-sided tube centering, weld seam avoidance, leapfrog cutting, and rapid profile file conversion (IGS/STEP).


Technical Parameters

Item

Parameter

Note

Tube processing range

(length × size)

12000mm×φ50-710mm

12000mm×□50-500mm

50≤rectangular tube side length≤500mm

For round tubes >690mm and square/rectangular tubes with side length >480mm, manual loading is required.

Profile processing range

(national standard)

Channel steel

10#(100X48mm)-40#(400X104mm)

Profiles440mm require manual loading


Equal angle steel

50x50mm-250x250mm



I-beam 10#(100X68mm)-45#(450X152mm)



H-beam

HW100X100mm-400X400mm

HM150X100mm-488X300mm

HN100X50mm-500X200mm


X/Y-axis positioning accuracy

±0.05mm/1000mm


X/Y-axis repeat positioning accuracy

±0.03mm


Maximum Y-axis positioning speed

30m/min

Positioning speed varies with tube weight.

Maximum B-axis positioning speed

25rpm


Loading length

6000-12000mm


Unloading length

0-12000mm


Tail length

≥0mm


Maximum material weight

4000kg

Material weight ≤333Kg/m

 Cutting Speed & Performance Guide (12,000W Fiber Laser)

MaterialWall Thickness (mm)Cutting Assist GasCutting Speed (m/min)
Carbon Steel2.0 mmAir

11.0 - 13.0 m/min

Carbon Steel6.0 mmAir / Oxygen

3.8 - 5.0 m/min

Carbon Steel10.0 mmOxygen

1.8 - 2.5 m/min

Carbon Steel16.0 mmOxygen

0.8 - 1.2 m/min

Carbon Steel25.0 mmOxygen

0.6 - 0.8 m/min

Stainless Steel2.0 mmAir / Nitrogen

10.0 - 12.0 m/min

Stainless Steel6.0 mmNitrogen

3.0 - 4.0 m/min

Stainless Steel14.0 mmNitrogen

1.2 - 1.5 m/min


Frequently Asked Questions (FAQ)

Q1: What is the maximum tube diameter and weight capacity of the LX-K73 heavy duty tube laser cutting machine?

Answer: The LX-K73 supports round pipes up to Φ710mm in diameter, square tubes up to 500x500mm, and a maximum single-tube load capacity of 4,000 kg across a 12-meter processing length.

Q2: Can the LX-K73 cut heavy structural steel profiles like H-beams and channel steel?

Answer: Yes, the LX-K73 is equipped to process Channel Steel (10#-40#), Angle Steel (up to 250x250mm), I-Beams (10#-45#), and H-Beams.

Q3: How does the machine minimize raw material scrap?

Answer: The LX-K73 adopts a movable front chuck mechanism and advanced nesting algorithms, enabling ultra-short tailing (<=20mm) to substantially lower material waste costs.


Send message
  • Address: No.16 Xi'An Road, Danzao Town, Nanhai District, Foshan City, China
  • Email: lx@lxcuttingmachine.com
  • WhatsApp: +86 17368207110
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