Precautions For Cutting Torch Of Sheet Metal Plasma Cutter

Sheet metal plasma cutter feature automated height control technology that helps ensure proper pierce and cut heights.

Precautions for cutting torch of plasma metal cutting machine：

1. Make sure that the torch joint is well insulated;

2. When cutting, the water-cooled cutting torch should be selected. The current-carrying capacity of the air-cooled cutting torch is too small, and it should be avoided as much as possible;

3. Check and solve the waterway system when the water-cooled torch is working, do not work in an environment with too low temperature;

4. After the electric grade is burned, it should be replaced in time;

5. Discharge the accumulated water in the air filter pressure reducer in time. If the water content in the compressed air is too much, consider adding a 1-2 filter;

6. After replacing the electrode nozzle, the metal pressure cap should be pressed in time;

7. The ceramic protective sleeve on the cutting torch should be replaced in time;

Selecting Plasma Cutting Machines plasma cnc machine

A variety of factors should be considered when selecting a plasma cutting machine. To start, determine the thickness of the material cut on a frequent basis. Higher amperage machines are better suited for thicker materials while lower amperage machines provide better control and cuts on thinner materials.

Other factors to consider are the machine's starting cycle and visibility. Plasma machines using high frequency starting interfere with computers and other nearby electronic devices. Machines with alternative starting methods exist to address such problems. Application of a smaller torch or an extended nozzle facilitates the working visibility, which is critical in achieving cutting accuracy. 

Plasma machines operate at extreme temperatures and use a high voltage spark to initiate the process. Evaluate safety features integrated into the machines, such as safety sensors that prevent an arc from starting unless a nozzle is in place, to avoid exposure to hazardous conditions.

Advantages of Sheet metal plasma cutter

Able to cut all conductive materials. Flame cutting, though also suitable for cutting thick metals, is limited to ferrous metals only.

Great quality for thickness up to 50 mm.

Maximum thickness up to 150 mm.

Comparatively cheap for medium thickness cuts.

Best way to cut medium thickness stainless steel and aluminium.

CNC machines are available to provide high precision and repeatability.

Can cut in water, resulting in smaller HAZ. Also reduces noise levels.

Smaller cutting kerf compared to flame cutting.

Quicker cutting speed than oxyfuel.

Disadvantages of Sheet metal plasma cutter

Larger HAZ compared to laser cutting.

Quality with thinner sheets and plates not as good as laser cutting.

Tolerances not as precise as laser cutting.

Does not reach thicknesses like waterjet or flame cutting.

Leaves a HAZ which waterjet does not.

Wider kerf than laser cutting.