Hebei Juliang Technology Co., Ltd. is one of the leading manufacturers and suppliers of plate fiber laser cutting machine in China. Please feel free to buy CE approved machinery made in China here from our factory. All customized machines are with high quality and competitive price.

What a Plate Laser Cutter Actually Does

A plate fiber laser cutting machine is a CNC system built for processing thicker metal plates - typically 10mm to 60mm and beyond - that standard sheet metal lasers struggle with. The machine uses a high-power fiber laser source, typically 6kW to 20kW or more, delivered through a fiber optic cable to a cutting head that moves along a gantry. The CNC coordinates motion, power, gas, and focus automatically.

What Makes Plate Cutting Different

The physics changes when you move from sheet to plate. On thin material, the beam goes through quickly. The heat-affected zone is small. The material stays flat. On thick plate, the beam takes longer to penetrate. The heat builds up. The material expands. The cut quality depends on managing that heat.

A plate laser cutter handles this through higher power and active focus control. A 6kW machine cuts 20mm steel at about 2-3 m/min. A 20kW machine cuts the same thickness about 30% faster.

The edge quality is what separates laser from plasma on thick plate. Plasma leaves a rough edge with a wide kerf and significant heat-affected zone. Grinding adds 15-25% to labor time on thick plate jobs. Laser leaves a clean edge that goes straight to welding. No grinding required.

Case

A small metalworking shop in Shandong, run by a father and son, specialized in custom brackets, frames, and repair parts. Their workshop was modest, with a tight budget. For a long time, their only tools for cutting were an angle grinder and a chop saw.

The owner explained, 'Half my day was spent just on cutting and tidying up, and the edges were never neat. We always had to grind them down afterward anyway.'

They invested in a compact 1.5kW laser cutter, which they easily installed in their existing space. The owner now uses it for a few hours daily.

He shared, 'My mornings used to be dedicated to cutting. Now, I can immediately focus on what the customer requires. The laser handles the cutting while I attend to other tasks.'

Qualification certificate

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Industry Solutions

Choose the plan that suits you best.

Can a plate laser cut aluminum and stainless?

Yes. Stainless requires nitrogen assist gas to prevent edge oxidation. Aluminum requires faster cutting speed - about 30-50% faster than steel of the same thickness - to prevent heat buildup.

How does the machine stay accurate over 12 meters?

The bed is built in modular sections. Each section is independent and stress-relieved. Thermal expansion doesn't transfer between sections. The gantry uses bilateral drive to stay square.

What's the most common cause of poor cut quality on stainless steel?

Focus position drift. Stainless reflects the beam more than carbon steel. The reflected heat causes the focus lens to expand and drift. The operator blames the gas or the material. The real problem is the lens heating up. If you see inconsistent cuts on stainless, check focus position first.

What's the real operating cost difference between plasma and laser on thick plate?

Plasma consumables on 50mm plate cost about 4-5 times more per hour than laser consumables. The laser cuts faster, so the per-part cost is often lower despite higher equipment costs. The breakeven point is typically around 30-40mm thickness. Below that, laser is usually cheaper per part. Above that, plasma can win on cost depending on volume.