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The KHGT pipe-to-pipe butt welding machine is designed for high-precision butt welding of pipes with diameters ranging from 19–80 mm. It is suitable for materials such as carbon steel, stainless steel, and alloy steel. The machine consists of a welding power source, control system, cooling system, wire feed mechanism, and welding head workstation. It features oscillation current control (OSC) and arc voltage control (AVC) functions, effectively eliminating manual operation errors. It utilizes a PLC intelligent control system and a touchscreen human-machine interface, and can store up to 100 welding programs, enabling fully automated intelligent welding.

KHB12-80 Tube Sheet automatic welding machine is a specialized auto arc welding machine whereby the arc is rotated mechanically through 360° around a static work piece of tube to tube sheet with tube specification φ12～φ80 mm.

This longitudinal seam welder is an advanced automated welding system designed for high-precision welding of cylindrical or flat workpieces. It utilizes dual front and rear gas shielding, with the rear gas supply automatically staged to ensure consistent shielding. With its precise clamping system and smooth torch movement, the longitudinal seam welder delivers uniform, clean, and reliable welds, making it ideal for carbon steel, stainless steel, and alloy applications in pressure vessel, chemical equipment, and storage tank fabrication.

This circumference welding machine is a highly efficient, dual-gun, dual-station automatic welding system designed specifically for welding the inner and outer circumferences of long pipes and double flanges. It flexibly accommodates a variety of welding methods, including TIG, double-shielded arc welding, MIG/MAG welding, and plasma welding, to accommodate diverse materials and process requirements. The circumference welding system boasts a high degree of automation, significantly improving welding efficiency and quality, making it ideal for high-volume circumference welding of pipe flanges.

This seam tracking welding is a universal automatic welding equipment for butt longitudinal seam welding. It can be used for high-quality welding of materials such as carbon steel, low alloy steel, stainless steel, aluminum and its alloys, and can select argon arc welding (with or without wire), melting gas shielded welding (CO2/MIG/MAG), plasma welding, submerged arc welding and other welding power sources to form a set of longitudinal seam automatic welding system.

The kehui orbital pipe welder is designed for high-precision, automated pipe welding in all positions. By securing the workpiece and rotating the welding carriage around it, the orbital welder ensures uniform welds with consistent penetration and excellent repeatability. The orbital pipe welder is ideal for industries such as pipeline manufacturing, food and pharmaceutical production, and power generation, where consistent, clean weld quality is crucial.

The closed head tube to tube welding machine is designed for precision orbital welding of tubes and pipes, offering both open and closed welding heads to meet diverse project needs.The machine adopts an advanced inverter power source and a proprietary control system with intelligent software, ensuring stable arc performance and high-quality welds even under complex working conditions. Ideal for industries requiring reliable and repeatable welds, this tube to tube welding machine delivers superior performance and long-term operational stability.

The closed-head orbital welding machine adopts advanced pulsed TIG (argon arc) welding technology to achieve precise, high-quality welding of enclosed pipes and fittings. With intelligent control of heat input and arc stability, it minimizes material deformation while ensuring smooth, uniform welds. The closed welding head provides excellent gas protection, preventing oxidation and guaranteeing clean, aesthetic seams. Designed for high efficiency and repeatability, this closed-head orbital welding machine is ideal for fully automated pipe welding operations that demand accuracy and consistency.

This robot tube to tubesheet joints system is independently developed by Kehui. The whole system realizes unmanned operation of tube sheets, efficient TIG welding, one person multi-machine control, improves production efficiency and reduces labor intensity. It is suitable for general tube sheet automatic welding in industries such as boilers, power construction, and chemical industry. Combining intelligent automation technology with excellent welding performance, it can perform fast and stable welding operations on tube sheets of different materials and specifications.