In the manufacturing of core industrial equipment such as heat exchangers, boilers and pressure vessels, tube-to-tube sheet welding is a key process that determines the pressure resistance, sealing performance and service life of equipment. Faced with the connection of thousands of tubes and tube sheets, traditional manual welding has low efficiency, unstable quality, and high operation risks in high-altitude and narrow confined spaces. Mwelding MWP series all-position tube sheet welding machine reconstructs tube sheet welding standards with intelligent automation technology, becoming core equipment for efficient and reliable industrial manufacturing.

Industry Pain Points: Why is Tube Sheet Welding Hard to Break Through?

• Large Batch & Low Efficiency: Tube sheets are densely arranged with hundreds to thousands of welding joints per plate. Manual welding takes 10-15 minutes per joint, relying heavily on senior welders, which easily causes construction delays in mass production.

• Narrow Space & High Operation Risk: The internal space of heat exchangers and boilers is narrow, making it difficult for welding torches to reach deep inside. Long-term bending and overhead working brings high labor intensity, together with risks of high-altitude and high-temperature operation.

• Unstable Quality & High Rework Rate: Manual welding is greatly affected by human factors, prone to defects like porosity, slag inclusion and incomplete penetration. The one-time pass rate is only 80%-85%, leakage often occurs in pressure tests, resulting in high rework costs.

• High Cost & Labor Shortage: Senior welders command high salaries with high turnover. Technical talent gap directly affects production stability, leaving enterprises under dual pressure of difficult recruitment and high labor costs.

  
  

Core Product: Mwelding MWP Series, Specially Developed for Tube Sheet Welding

Mwelding MWP Series (MWP-38, MWP-65, MWP-102, etc.) All-position Automatic Tube Sheet Welding Equipment adopts TIG welding technology, supporting autogenous welding and wire filler welding. It adapts to stainless steel, carbon steel, titanium alloy and other materials, covers pipe diameter Φ6-102mm, and meets two welding forms: flush tube and extended tube.

✅ Full-position Dead-angle Free, Flexible Operation in Narrow Spaces

Adopting 360° rotation non-twist design with lightweight welding torch (2-10KG), it can easily go deep into dense tube sheet gaps and work freely in narrow spaces.

Pneumatic elastic expanding mandrel fixture achieves positioning accuracy of ±0.05mm, fast clamping in 10 seconds, firmly fixing welding joints to avoid welding deviation.

✅ Intelligent Efficient Manufacturing, Efficiency Increased by Over 3 Times

Each automatic welding joint only takes 2-3 minutes, 3-5 times more efficient than manual welding. Equipped with full circulation water cooling + central rod direct cooling for expanding mandrel, it can continuously weld 2000 times without shutdown. High duty cycle perfectly adapts to mass continuous production.

✅ Precision Welding, One-time Welding Pass Rate ≥98%

Built-in professional welding parameter library matches pipe diameter, wall thickness and material with one click without repeated debugging, keeping the welding process stable constantly. Multi-gas path protection and precise arc length control realize one-side welding and double-side forming. The weld seam is smooth, full, oxidation-free and defect-free, with pressure resistance higher than base metal.

It collects welding parameters in real time and dynamically adjusts energy output to eliminate porosity, incomplete penetration and other defects.

✅ Intelligent & User-friendly, Zero-threshold Operation

Matched with MWA-200/MWA-400 integrated intelligent power supply, equipped with 10-inch touch screen, supporting parameter storage, one-click recall and fault self-inspection.

Modular design with core components imported from Germany, compact, portable and durable. It supports hanger suspension fixing for flexible working range.

Application Scenarios: Covering High-end Manufacturing Needs of All Industries

• Energy & Power Industry: Tube sheet welding for nuclear power, thermal power, power plant boiler heat exchangers and condensers, high temperature and pressure resistant, compliant with nuclear-grade quality standards.

• Chemical & Pressure Vessel Industry: Tube sheet welding for petrochemical heat exchangers, reaction kettles and pressure vessels, corrosion resistant and leakage proof, adapting to harsh chemical working conditions.

• HVAC & Refrigeration Industry: Central air conditioning evaporators, condensers and heat pump heat exchangers, suitable for dense small diameter (Φ9.52-25mm) tube sheet welding with guaranteed efficiency and precision.

• Food & Pharmaceutical Industry: Sanitary heat exchangers and biological fermentation equipment tube sheets, 316L stainless steel hygienic welding without impurities and dead corners, compliant with GMP standards.

• Water Treatment / Semiconductor Liquid Cooling Industry: Precision tube sheet welding for pure water equipment heat exchangers and semiconductor liquid cooling heat dissipation tube bundles to ensure sealing performance and heat dissipation stability.

• Shipbuilding / Military Industry: Marine heat exchangers and military pressure vessel tube sheets, vibration and corrosion resistant, compliant with classification society and military quality specifications.

Service Guarantee: Full-process Support for Worry-free Use

Customized Service: Customized welding torches and fixtures can be provided according to pipe diameter, tube spacing and material to adapt to special working conditions.

Technical Support: On-site installation and commissioning, one-on-one operation training, 24-hour online technical response, full-process escort.

After-sales Guarantee: 1-year equipment warranty, lifetime maintenance, core components with high durability and low failure rate.

Welding Trial Service: Free sample welding service is provided for you to witness the welding effect intuitively and purchase with confidence.