CE Certification E71T1 Welding Wire Butt Welding Machine Supplier & Suppliers

E71T1 (AWS A5.20 E71T-1C / T-1M) represents the global workhorse of gas-shielded flux-cored arc welding (FCAW). Utilized heavily in heavy equipment manufacturing, shipbuilding, structural steel frames, and offshore platform construction, E71T1 offers superior deposition rates, excellent all-position weldability, and low spatter. The production of E71T1 wire, however, is a highly complex metallurgical and mechanical process. The core of this process requires transforming flat steel strips into thin tubular structures packed with fluxing powders.

To produce E71T1 flux-cored wires down to final diameters of 1.2mm, 1.4mm, or 1.6mm, raw coils of low-carbon steel strip must be slit, joined, cleaned, roll-formed, filled with precisely blended flux powder, closed, and then drawn down over multiple reduction passes. This requires continuous feed line operations. Thus, a CE-certified steel strip butt welding machine is not merely an auxiliary unit; it is the fundamental gatekeeper of structural integrity and continuous workflow.

Traditional welding methods at the coil joining stage often suffer from variable thermal profile control. The resulting weld joints are typically harder or softer than the parent material, leading to localized thinning or catastrophic snapping when subjected to the high-tensile drawing stresses in straight-line drawing machines. Modern CE-certified E71T1 butt welders address this issue using sophisticated, PLC-controlled resistance butt welding and automated tempering cycles.

The joining process utilizes precise hydraulic clamping to ensure perfect planar alignment of the slit strip ends. The shearing unit, integrated within the welder frame, creates clean, square edges. The welding sequence initiates a high-current, low-voltage pulse that fuses the ends without introducing external gas inclusions. Following the weld, an automated induction annealing protocol cools the seam uniformly. This mimics the grain structure of the parent steel strip, neutralizing high-hardness martensitic structures and guaranteeing that the weld zone matches the ductibility of the base metal. As a result, the wire drawing cassette can reduce the wire diameter through multiple passes without experiencing tensile failure.

Operating high-speed drawing machinery and high-current electrical welding systems poses clear industrial risks. CE certification is a strict regulatory framework that guarantees machinery safety, electromagnetic compatibility (EMC), and low-voltage electrical safety under European standards. For manufacturers in Europe, North America, and high-standard industrial regions, importing CE-certified equipment ensures compliance with local occupational health and safety laws.

Beijing Orient Pengsheng Tech. Co., Ltd. addresses these requirements by integrating premium electrical components, fail-safe interlocking optical guards, structured emergency stop circuits, and heavy shielding to meet European Machinery Directives. Our E71T1 welding wire butt welding machines, along with our high-speed straight-line drawing units, are designed to perform reliably under continuous three-shift operations. This minimizes the total cost of ownership and ensures smooth regulatory audits for our global clients.