High-frequency pipe welded machinery is the special equipment to product welded pipe of low

carbon steel or low alloy steel material, that is feeding the steel belt into the machinery, turning into

the tube by forming roller, then using high-frequency proximity effect and skin effect to make the

tube reach the welding temperature, and completing the welding under the squeezing roller extrusion,

then through cooling, sizing and straightening to get the required steel pipe.

Technical process

Uncoiler--> Straightening end--> Pipe straightener--> Shear&Welder--> Storage--> Forming, H.F.

welding--> sizing mill--> Flying saw--> Pipe straightener used for original pipe--> Flatter-->

Hydraulic or scateless test equipment--> Roller conveyor and conveyor table-->Packing device-->

Electric control system

Features

1. High Precision: quality of pipe can be reached to ±0.03mm, which is used to produce high

precision pipe, such as cylinder tube, transmission shaft tube, etc.

2. High Speed: Running speed can be reach 150m/min.

3. Quick Change System: small diameter tube mill adopts complete fast change structure, greatly

reduce the time of roller changing. Large diameter pipe mill adopts exclusive quick change system.

4. Roller Common Use System: “FFX” Forming& Direct Forming to Square, can save 60 - 80%

roller cost for user.

5. Special Tube Mill for: Large diameter with thin wall thickness, Small diameter with large wall

thickness, High strength section steel, “9” shape pipe, etc.