FAQ

• What is the PT40 tube-to-tubesheet orbital welding machine used for?

  The PT40 is a "scalpel-grade" automated precision welding terminal designed for tube-to-tubesheet connection welding. Paired with the FXT20 programmable power source, it achieves all-position automatic TIG welding for tube diameters from φ12mm to φ38mm. It is specifically engineered to replace manual welding in boilers and heat exchangers, ensuring 100% consistency and eliminating quality fluctuations.

• Why choose an automated tubesheet welder over manual welding?

  Automated systems like the PT40 solve three major pain points: difficult welder recruitment, quality inconsistency, and low efficiency. It transforms master-level craftsmanship into digital parameters, allowing ordinary operators to produce high-precision, leak-free welds that meet nuclear-grade safety standards.

• What pipe diameters and materials can the PT40 tubesheet welder handle?

  The PT40 supports an outer diameter range of φ12mm to φ38mm. It is compatible with a variety of critical materials including carbon steel, stainless steel, and titanium alloy. For mainstream tube diameters, it uses a standard 0°/7° dual-angle slide base to ensure perfect electrode positioning for different joint types.

• Is the PT40 suitable for welding in narrow or restricted spaces?

  Yes. The PT40 features an extreme lightweight design, weighing only 3kg with dimensions of 300×150×143mm. This allows it to easily extend into narrow tube boxes and compact heat exchanger shells where traditional large automatic welding machines or manual torches cannot operate effectively.

• How fast is the clamping process for the PT40 welding head?

  The PT40 utilizes an innovative 180° handle-triggered elastic collet mechanism. This radial and axial dual positioning system allows a single operator to complete the entire clamping process in just 30 seconds, compared to the typical 5 minutes required by traditional methods, significantly boosting productivity.

• Can the PT40 tubesheet welder support 24-hour continuous operation?

  Yes. The PT40 features a full water-cooling design that protects the gear shaft, turntable, and tungsten electrode holder. With a cooling water flow of ≥600ml/min and a 100A duty cycle of 70%, it can handle long-duration, high-intensity welding tasks without performance degradation or torch burn-out.

• In which industries is the PT40 orbital tubesheet welder typically applied?

  The PT40 is widely used in boiler manufacturing (economizers, superheaters), heat exchanger production, nuclear power equipment (steam generators), and the chemical industry (reactors and condensers). It is the ideal solution for high-pressure and corrosion-resistant environments where leak-free seal welding is mandatory.

• What safety protections are included with the PT40 welding system?

  Safety is paramount. The PT40 includes leakage protection, a silver-plated conductive ring for reliable grounding, and an emergency stop function. It also features a water-cooling flow monitor that alarms if the flow drops below 450ml/min, preventing equipment damage and ensuring operator safety in industrial environments.