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High-frequency straight seam pipe welding machines are specialized equipment used to produce straight seam welded steel pipes, widely used in construction, petroleum, automotive manufacturing, and other fields. The following is key information from the comprehensive search results:

I. Equipment Type and Technical Features
High-frequency straight seam pipe welding machines

Using high-frequency induction heating (1-800kHz) or inverter welding technology, welding speeds can reach 120m/min and are suitable for materials such as mild steel, galvanized steel, and stainless steel.

Typical applications include API-5L oil pipelines (Ø60-508mm) and automotive roller tubes (Ø13-38mm).

Fully Automatic CNC Models

Equipped with a PLC control system, these machines enable automatic sizing and straightening, such as the Henkel 40X-120 models (welding speeds of 15-100m/min and rated power of 450kW).

Some models integrate AI control and high-precision sensors, enabling fully automated production.