ISO9001 ERW325 High Frequency Tube Milling Machine 20-60m/Min

ERW325 Advanced Technology High Frequency Straight Seam Steel Pipe Machine API Tube Mill

Product Details

This high-frequency welding pipe mill is specialized equipment to produce high frequency straight seam welded pipes for structural pipe and industrial pipe with Φ140mm~Φ325mm and wall thickness of 4.0~12.7mm. Through optimization design, best materials choice, and accurately fabrication and rolls, the whole line can be reached high precision and high speed. Within suitable range of pipe diameter and wall thickness, pipe production speed can be adjusted.

API pipe mill is specialized for manufacturing straight welded pipe for petroleum and gas pipelines. Taking hot-rolled steel as raw material, it produce required pipes through cold roll forming and suitable welding methods like H.F. welding, submerged arc welding and so on. The whole production line adopts ‘ZTF’ forming technology.

Technical flow

Scroll up → Uncoiler → Straightening end → Flattener → Auto-shear and welding → Horizontal accumulator → Strip UT → Forming(ZTF) → H.F. Induction welding → Removing external burr → Removing inner burr → Burnishing → Online detection → Seam annealer → Air cooling → Water cooling → Sizing → Cut off → Roll table → Flattening test → End-facing and chamfering → Hydrostatic test → Off-line UT test → Drifter → Inspection → Weighing and length measurement → Coating & printing → Packing → Warehouse

Usage

ERW pipe mill is used to produce API, EN,ASTM,GB/T etc pipe to transport water, gas and oil, also can produce construction pipe.

Product Parameter

Model List

Note: We can design and manufacture pipe making machine according to customers' requirements.

Product Technique

ZTZG is one of three executive directors of 'China Steel Structure Association' 

and one of China's top ten pipe making machinery brands. 

With over 20 years of sales and R&D, ZTZG has acheived multiple China's first along with

several patents that lead the pipe making industry in China. We look foward to make

better, steadier, and more economical machines in the future.