The 500A plasma surfacing torch consists of three essential parts: the upper part, lower part, and insulator. The upper component securely fixes the tungsten pole and facilitates water and electric connections. The lower component houses the nozzle and forms part of the water-cooled cavity, integrating pipelines for water, electricity, gas, and powder.

Insulators provide necessary separation and connection between the upper and lower sections. The design ensures that protection gas diffuses completely inside the torch for uniform shielding. Additionally, the powder feeding pipeline is internally inlaid to ensure an unobstructed feeding system.

• Replacement of nozzles, sealing rings, and central rings must be performed during machine shutdown.
• Maintain the torch position higher than the water tank to prevent cooling water from entering the powder channel.
• Ensure the pilot arc is off when disassembling the tungsten pole.
• Always inspect sealing rings for scratches and ensure proper placement in the groove.
• Stand on dry insulating mats and use dry insulating gloves; never use wet or damaged protective gear.
• Avoid touching live components or hot parts with bare hands.
• Allow for a cooling period during continuous use.