Laser tube cutting machine for large tubes and profiles LAZIRON QGJ800

A 20 kW laser tube cutting machine solves a problem every structural steel shop knows well: large tubes and heavy profiles go through too many operations before they reach the welding station. It is designed for steel construction companies, automotive suppliers and metalworking shops that process steel, aluminium and stainless steel.

In the production flow, this laser tube cutting machine sits between the raw material store and the welding station. It replaces the classic sequence of sawing, marking out and manual grinding of contours: the whole bar goes in and comes out cut to size, with joint cut-outs and edges already prepared. The CNC control takes over these operations and keeps manual adjustments to a minimum, so an operator supervises the process instead of carrying it out step by step. If you also work with smaller sections, see the full range of laser cutting machines for tubes.

Before an investment like this, it is worth weighing up what outsourced cutting costs you today: transport in both directions, lead times you do not control and parts that arrive without bevels. The advantages below are the ones you see directly in production.

Advantages of laser cutting for large tubes and profiles

• Wide range of sections: a single laser tube cutting machine covers round tubes of 150–800 mm, square tubes of 150–600 mm and profiles with a flange of 100–600 mm. You no longer split orders between several machines depending on diameter or shape.

• ±45° bevelling directly on the machine: the laser head works at an angle, so weld edges come out ready prepared. The separate bevelling operation with a torch or grinder disappears, and welders receive uniform joint gaps, part after part.

• 20 kW laser power: pierce cutting on thicknesses of 1–30 mm, from thin-walled tubes to thick structural sections. The same source handles both light and heavy parts, without changing the cutting process.

• CNC control, repeatable results: the automated process gives the same dimension on the first and the last part of a batch. Manual adjustments are kept to a minimum, which shortens working times and lowers the risk of scrap caused by marking errors.

• Efficient use of material: complex contours are cut directly, with minimal waste. On large diameter tubes, every bar end you save shows up in the cost per part and in your raw material stock.

• Clean edges on steel, aluminium and stainless steel: laser cutting leaves smooth edges, so finishing work is reduced and the part moves to assembly faster.

Technical specifications of the LAZIRON QGJ800 laser tube cutting machine

Applications: laser metal cutting in steel construction, automotive and metalworking

In steel construction, the QGJ800 cuts the tubes and profiles for industrial halls, trusses, columns and support structures. For companies that deliver industrial halls or support structures, an in-house laser tube cutting machine means control over lead times: you no longer wait for a cutting subcontractor, and parts arrive with edges already prepared for welding. Large diameter round tubes, square tubes and profiles are processed at the same station, with the same program.

In the automotive industry and in metalworking shops, what matters is complex contours, cut-outs for joints and repeatable series. For laser metal cutting on tubes and profiles, the CNC control keeps the same geometry from one part to the next, and material is used with minimal losses. Rectangular, square or round tube cutting, plus profiles: all on a single machine, with no transfers between machines.

For cutting service providers, the machine widens the range of orders you can accept: large diameter tubes and profiles with a web of up to 600 mm are exactly the parts many shops turn down or pass on. With ±45° bevelling done on the machine, you can deliver ready-to-weld parts to your customer instead of bars cut to length, which raises the value of every order.

The machine is built with CE-certified components, in line with the requirements of the Machinery Directive 2006/42/EC, which simplifies acceptance and the documentation for your investment. If your flow also includes H-beams with a large web, see also the laser cutting line for H-beams and profiles, which works on the same principle.

One detail that matters when planning your hall: the machine measures 30 m × 6 m, so it needs space for the full bar at the infeed and for the cut parts at the outfeed. Our team discusses the layout with you before delivery, so the machine fits naturally between the tube store and the assembly area, without unnecessary handling with the overhead crane. At the same time we establish which sections and thicknesses you process most often, so commissioning starts directly on your own parts.

How the laser tube cutting machine works

The cycle on a laser tube cutting machine like the QGJ800 is short and predictable, from program to ready-to-weld part. The steps below describe the typical flow for an order of tubes or profiles:

1. Preparing the program: the part contour, cut-outs and bevels are defined in the CNC program, and the control system automates the cutting.

2. Piercing and cutting: the 20 kW laser pierces the wall and cuts thicknesses of 1–30 mm, following the programmed contour.

3. Bevelling the edges: where the part needs a weld preparation, the head tilts up to ±45° and prepares the edge in the same pass.

4. Unloading the parts: the parts come out cut to size, with clean edges, ready for assembly and welding.

Because the program stays saved in the control system, a recurring order can be repeated without new adjustments, and the result stays the same regardless of the operator.

What Uzinex provides

• Delivery, installation and commissioning, with operator training on your own parts.

• 60-month warranty and service with on-site response in under 24 hours in Romania (24–72 hours in other countries).

• Technical documentation for EU-funded, PNRR and public procurement projects.