Precision Tube Making Machine for Heating Element Tubes (13.5*0.7mm)

In the fields of electric heating appliances, high-end household appliances, and precision industrial components, the requirements for the accuracy, surface finish, and material purity of stainless steel round tubes are extremely stringent. The 13.5mm outer diameter and 0.7mm wall thickness specification, widely used for the core elements of heating tubes, is particularly critical, as its production quality directly determines the heating efficiency, safety, and lifespan of the final product.

ST Machineries' TIG Welding Tube Production Line, designed specifically for such precision needs, utilizes advanced Tungsten Inert Gas (TIG) welding technology. It specializes in producing high-precision, high-quality thin-walled bright-finished round tubes from 304 stainless steel, providing reliable core material manufacturing solutions for downstream industries.

Our TIG Welding Tube Mill is deeply optimized for the typical 13.5*0.7mm specification, ensuring exceptional stability and consistency in production.

Stainless Steel Round Tube Making Machine

1. High-Precision Forming and Sizing System

• Employs multi-pass precision roll forming technology to ensure the strip is coiled uniformly and steadily into a tube, achieving precise control over the 13.5mm outer diameter within strict tolerance ranges.
• Optimized forming force and guide systems for the 0.7mm thin-wall characteristic effectively prevent scratches, wrinkles, or ridges during the forming process.

2. Advanced TIG (Argon Arc) Welding Process

• Welding is performed under the full protection of inert gas (typically argon), resulting in an oxide-free weld zone with a pure, dense, and smooth weld seam.
• The process features concentrated and controllable heat input, minimizing the heat-affected zone on the 0.7mm thin-walled tube body, significantly reducing the risk of deformation and burn-through, and maintaining the overall roundness of the tube.
• The chemical composition of the weld seam is highly consistent with the base material (304 stainless steel), offering excellent corrosion resistance and passing rigorous flattening, flaring, and other tests.

3. In-Line Bright Annealing & Finishing Technology

• Features in-line weld seam solution heat treatment and bright annealing (optional configuration) to eliminate welding stress, homogenize the microstructure of the weld and base metal, and restore the inherent corrosion resistance of 304 stainless steel.
• Integrated multi-die sizing and precision straightening units ensure the finished tubes possess exceptional straightness and surface finish, ready for direct use in the wire-winding assembly of heating elements.

The high-quality 304 stainless steel bright-finished round tubes produced by this equipment serve as ideal base materials for the following industries:

Heating Element Manufacturing:
Core tube material for various industrial and domestic heating elements, used in water heaters, ovens, coffee makers, industrial ovens, etc.

High-End Household Appliances & Kitchenware:
Used in high-end electric kettles, steam generators, dishwasher heating assemblies, and other components requiring clean, corrosion-resistant flow paths or heating parts.

Automotive Components:

Precision tubular parts for car seat heaters, compact oil heaters, sensor protection tubes, etc.

Medical Devices & Laboratory Equipment:

Fluid transfer tubes and structural components demanding high cleanliness and corrosion resistance.

Other Precision Industries:

Instrument housings, fiber optic sleeves, decorative bright tubes, etc.

ST Machineries is a certified high-tech enterprise specializing in the R&D and manufacturing of stainless steel tube mill systems. With a state-of-the-art production facility spanning over 20,000 square meters and a team of 200+ skilled engineers and technicians, we deliver more than 300 tube mill lines annually. Our equipment is exported to 50+ countries across North America, Europe, Southeast Asia, and the Middle East. From initial consultation and custom engineering to installation, commissioning, and operator training, we provide end-to-end solutions tailored to your production needs.

Contact us today to request a detailed technical proposal and customized quotation for your 13.5×0.7mm 304 stainless steel TIG tube mill project.