Galvanized Spiral Welded Pipe Mill Line Corrugated Post-Tension Duct Machine

                Galvanized Spiral Welded Pipe mill Line Corrugated Post-tension Duct Machine  Product DescriptionSpiral welded pipe mill is used to roll the low carbon steel/ low alloy steel strip into tube by a certain forming angle, further weld it into steel pipe by sub-merged arc welder.Large diameter pipes can be produced with narrow steel strip. Machine production rangeWe can provide you below size or custommzed according to your requirements   SeriesMin Pipe O.D.Max Pipe O.D.Min ThicknessMax ThicknessCoil widthMax Production capacityArea mmmmmmmmmmton/yearm2LH600219 - 508325 - 8202 - 44 - 10400 - 6008000 - 1200020×96LH800219 - 508406 - 12202 - 44 - 12400 - 8009000 - 1700020×96LH1050219 - 508630 - 16202 - 44 - 14450 - 105016000 - 2300024×108LH1250406 - 610820 - 16203 - 68 - 18500 - 125026000 - 3500024×108LH1550406 - 6101420 - 3200+3 - 612 - 25.4+500 - 155036000 - 7600026×125LH2000406 - 6102020 - 3200+4 - 620 - 25.4+1000 - 200077000 - 9300030×180  Machine Application InFor liquid delivery: water supply& drainage; For gas delivery: coal gas, steam and LPG; For structural use: piling pipe, structural pipe in the field of bridge, dock, road, and construction, etcProduction process flowFeeding→uncoiling→leveling→shearing& butt welding→rotary shear→edge milling→main drive→pre-bend& guide board→forming→inside welding→outside welding→cutting off→pull out→end-facing& beveling→hydrotesting→collectionOur parternersCertifications Exhibition display Packaging & Shipping FAQ1. Are you manufacturer or trading company?We are manufacturer with 30 years experience , Which is located in Hebei Province ,China . 2. What shall we do if don't know how to operate your machine?    We can dispatch our engineers to your country and you can also send your engineers to our  factory for learning operation. Besides, there are detailed installation and operating instructions attached, We have telephone and email support at 24 hours per day.  3. What are your payment terms?    We support T/T, L/C, D/P, D/A, Western Union and so on. TT, 30% in advance, 70% balance before the shipment.4. How long is the warranty period of your machine?    1 year .   /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1