How does a CNC flame cutting machine usually operate?

A CNC flame cutting machine, also known as a CNC flame cutter, is an industrial cutting tool used to cut thick sheet metal or thin plates. It uses a combination of gas and oxygen to create a controlled flame that melts and removes metal from the cutting path. The machine is used to facilitate the plasma cutting process, which utilises an accelerated jet of hot plasma to cut conductive materials. In addition, due to its fast and accurate cutting, it is a popular choice for large corporations and small hobby shop applications.SUNNA is a professional manufacturer of gantry CNC plasma cutting machines. Our plasma cutting machines are highly popular in the industry. Compared with fibre laser cutting machine, plasma cutting machine can easily cut the same thickness or thicker material.

The following is an overview of how a CNC flame cutting machine usually operates:

1. Material Preparation: The metal sheet or plate to be cut is placed on the cutting table or platform. It is securely clamped or fixed in place to ensure stability during the cutting process.

2. GAS SUPPLY: The machine has a gas supply system that provides the necessary gas, usually acetylene or propane, and oxygen. These gases are mixed in precise proportions to produce a combustible flame.

3. Ignition and preheating: CNC flame cutting machines have a torch or burner that ignites a mixture of gas and oxygen. The torch is located above the material and the preheating process begins. The preheating flame raises the temperature of the metal in the cutting path.

4. CNC Control: The machine is equipped with a computer numerical control (CNC) system that controls the movement of the torch. The operator programs the desired cut path into the CNC system or imports a pre-designed cut pattern.

CNC flame cutting machines are typically used to cut thick sheet metal, often more than 1 inch (25 mm) thick. They are suitable for materials such as carbon steel, stainless steel and aluminium. However, flame cutting produces a larger heat affected zone than other cutting methods and may require additional post-cutting operations for surface finishing. CNC plasma cutting machines are widely used in the metal fabrication industry due to their versatility and ability to cut a wide range of metals. These machines use a plasma torch to generate a high-temperature plasma arc to melt and cut metal.

When you are considering purchasing a CNC plasma cutting machine, it is important to evaluate the specific requirements of your application, such as the type of material required, thickness, and cutting speed. Factors such as the manufacturer's or supplier's after-sales support, warranty, training and service availability should also be considered. In order to make an informed decision, it is advisable to contact several suppliers, compare their products and request a quotation based on your specific requirements. This will help you identify the most suitable CNC plasma cutter for your needs and budget.