Hebei Juliang Technology Co., Ltd. is one of the leading manufacturers and suppliers of cnc plasma cutting machine for metal 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.

Brief Overview of Portable CNC Cutting Machines

Computer numerical control plasma cutters are digitally operated thermal cutting systems for conductive metal processing. A high-velocity ionized plasma jet melts and cuts materials along pre-programmed routes derived from CAD designs.

Thermal behaviour differs significantly among metal workpieces. Carbon steel oxidizes easily during cutting, stainless steel needs matched gas setups, and aluminum transfers heat away quickly. The unit allows parameter adjustments for individual materials to achieve stable cutting results on all frequently used metals.

Differences in Plasma Cutting for Carbon Steel, Stainless Steel & Aluminum

Plasma cutting melts metal with ionized high-temperature gas and removes molten material via gas flow. While the working principle is universal, cutting parameters must be adjusted for different metals to ensure stable results.

Plasma arcs power the cutting process. Compressed air or mixed gases pass through the torch nozzle and are heated by electric arcs into 20,000–30,000°C plasma. This high-temperature plasma melts metal, and fast gas flow clears molten material to form cutting seams.

Compressed air works well for carbon steel cutting, producing clean edges with little dross. Carbon steel also cuts faster than stainless steel and aluminum at the same thickness.

Oxygen leaves rough edges on stainless steel. Nitrogen or argon-hydrogen blends deliver smoother finishes. Though cutting speed is slower, the finished surface often requires no secondary polishing.

Aluminum's high thermal conductivity makes heat dissipate rapidly during cutting. It needs higher amperage than steel, and mismatched parameters cause uneven edges. Nitrogen or argon-hydrogen mixtures optimize aluminum cutting quality.

The CNC system saves exclusive parameters for different metals. Operators select material and thickness, and the system automatically matches cutting speed, gas pressure and current, simplifying operation and reducing material waste.

The built-in torch height control stabilizes torch-workpiece distance through arc voltage feedback. It compensates for aluminum's thermal deformation during cutting, effectively maintaining consistent cutting precision.

Scene presentation

Equipment Operational Metrics
Max speed	10,000 mm/min
Machine weight	100 kg
Repeatability	±0.1 mm
Positioning accuracy	±0.3 mm / 1000 mm
Control system	Fangling F5210H

Actual Machining Cases From Cooperative Factories

A metal furniture manufacturer in Selangor had been outsourcing all CNC cutting to a third-party job shop. To keep costs manageable, they committed to bulk purchases of pre-cut Steel cable fixation approximately $25,000 in material inventory at any given time. Lead times averaged two weeks, and the lack of in-house control meant design changes or urgent orders were nearly impossible to accommodate.

After installing a 1500×3000mm CNC plasma cutting system with 100A power, the company brought all cutting operations in-house.

Common Questions About Our CNC Metal Cutting Machines

What metals can a CNC plasma cutting machine cut?

For carbon steel, compressed air offers the fastest cuts with very little dross. Stainless steel needs nitrogen or argon-hydrogen gas to achieve a clean, polished edge, and it cuts more slowly than carbon steel. Aluminum's high thermal conductivity means you'll need more amperage to cut the same thickness, and you'll have to watch the torch height carefully to manage heat distortion. Our machine saves different settings for each metal, so changing materials is as simple as picking from the menu.

What can be customized?

Colors, sizes and accessories can be customized.

How does cutting stainless steel with plasma affect the edge quality?

Plasma cutting stainless steel with nitrogen or argon-hydrogen gas produces a clean, polished edge that typically requires no secondary finishing. The edge is bright and smooth, suitable for visible components like kitchen equipment, architectural panels, and decorative elements. The cut edge is free of the oxidation that would occur if compressed air were used.