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API Pipe Mill

Description



API pipe millis specialized for manufacturing straight welded pipe for petroleumand gas pipelines. Taking hot-rolled steel as raw material, it produce required pipes through cold roll forming andsuitable welding methods likeH.F. welding, submerged arc welding and so on. The whole production line adopts “ZTF”forming technology which is developed by ourselvescombined with advanced Japanese FFX technology. ( It is no need to change rollers in breakdown section)

Materials:L245,L360,A53,J55,N80 ,X42,X46,X52,X56,X60,X65,X70

Equipment advantages:
√Successfully manufactured China's largest straight seam API pipe production linewith Max OD 720mm
√Apply to high strength steel and big thickness
√ZTF forming processsave roller up to 60%
√Electric control and automatic adjustment, high precision,high roller change speed

Technical flow

Scroll up→Uncoiler→Straightening end→Flattener→Auto-Shear and Welding→Horizontal Accumulator→Strip UT→Forming(ZTF) →H.F. induction welding→Removing externalburr→Removing inner burr→Burnishing→Online Detection→Seam annealer→Air cooling→Water cooling→Sizing→Cut off→Rolltable→Flattening Test→End-facingand chamfering→Hydrostatictest→Off-line UT test→Drifter→inspection→Weighing and length measurement→Coating & Printing→Packing→Warehouse


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

Model Round pipe
mm
Thickness
mm
Working spead
m/min
ERW140 Ф60-Ф140 2.0-5.0 60
ERW165 Ф76-Ф165 2.0-6.0 50
ERW219 Ф89-Ф219 2.0-8.0 50
ERW273 Ф114-Ф273 3.0-10.0 45
ERW325 Ф140-Ф325 4.0-12.7 40
ERW377 Ф165-Ф377 4.0-14.0 35
ERW406 Ф219-Ф406 6.0-16.0 30
ERW508 Ф273-Ф508 6.0-18.0 25
ERW660 Ф325-Ф660 6.0-20.0 20
ERW720 Ф355-Ф720 6.0-22.0 20


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