Electro-pneumatic regulator for laser cutting ITV-GJ: eliminate burrs and dross

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Is your laser cutting machine facing the following problems:

• Burrs and slag always present on cut surfaces?

• Slow and inefficient piercing on thick plates?

• Overburning and deformation at sharp corners during high-speed cutting?

• Rising consumption of nitrogen and other assist gases driving up your operating costs?

These common problems in laser cutting are often related to unstable or inaccurate assist gas pressure control.

Solution: Use an electronic pressure regulator ITV-JG to ensure stable pressure output.

1. Why is pressure control critical in laser cutting?

Laser cutting machines use different auxiliary gases to cut different materials. The pressure and flow rate of the auxiliary gas required vary depending on the thickness of the cutting material. Precise control of auxiliary gas is a key factor in achieving high-quality cutting. 

Usually has the following functions:

① Combustion and reaction: For example, using oxygen to cut carbon steel. Oxygen reacts chemically with high-temperature metal to accelerate the cutting process.

② Blowing away slag: Core function. The gas must be at the right pressure and flow rate to quickly and thoroughly blow away the molten metal residue at the moment the laser beam cuts the metal, thus forming a smooth and clean incision.

③ Protection and cooling: For example, using nitrogen to cut stainless steel. High-purity nitrogen can effectively isolate the air, prevent oxidation of the incision, and protect the optical lens from contamination and damage.

2. VPC Product Solutions: Module ITV-JG

ITV-JG laser cutting integrated module is a compact gas control unit combining an ITV electro-pneumatic regulator and a high-speed solenoid valve. Designed for CNC laser cutting systems, it offers precise pressure regulation and rapid gas switching.

① Electro-pneumatic regulator ITV

ITV electronic pneumatic regulator is mainly used in laser cutting machine to adjust the gas pressure, so as to control the gas injection amount in the cutting head.

• Electrical signal control with built-in pressure sensor for closed-loop feedback.

• Capable of simultaneously controlling three gases (O₂ / N₂ / Air).

• Supports remote and programmable control.

• High control accuracy and fast response.

• Multiple models available: Manufacturers can choose different types of electric proportional valves according to different working conditions and market demands. For example, high-power cutting equipment is usually equipped with high-voltage electric proportional valves to achieve fast cutting.

ITV 1030

ITV 2050

ITV 2090

② High-speed solenoid valve

Used to accurately control the opening and closing of auxiliary gas during laser cutting to improve cutting quality and efficiency.

• Suitable for high pressure environments.

• Two-way/three-way gas selection, internal integrated check valve.

• Suitable for high pressure nitrogen, oxygen and compressed air.

• Direct-acting structure, no need for external compressed air as pilot air source.

3. Module ITV-JG VS Traditional Pressure Regulator

4. FAQ

① Can it directly replace the electric proportional valve of brands such as SMC/Festo?

Yes. ITV-JG is designed as industry standard in electrical interface (0-10V/4-20mA) and gas line connection, and can be easily replaced in most cases.

② How does it achieve automatic switching between nitrogen and oxygen?

The module integrates a solenoid valve and dual pressure setting function. Your CNC system only needs to give a switching signal, and the module can automatically close/open the corresponding gas path and immediately switch to the preset nitrogen (high pressure) or oxygen (low pressure) pressure value. The whole process is fast and seamless.

③ Is installation and commissioning complicated?

The installation is very simple. Due to the high degree of integration, you only need to connect the air inlet, air outlet and power/signal wires. We provide detailed installation manuals and online technical support.

④ Is it compatible with laser cutting machines of various brands?

As long as your equipment CNC system can provide standard 0-10V or 4-20mA analog control signals, it can be perfectly compatible with ITV-JG.

Laser cutting is widely used in the fields of automobile, shipbuilding, aviation, nuclear industry, machinery manufacturing, steel, textile, petroleum, etc. VPC products can be perfectly applied to various laser cutting equipment. If you are interested in this product, please contact VPC Pneumatic!