The forming fundamental of tube mill: the slit strip is formed into approximate round steel tube without welding by the forming mill,and then the tube’s edge is melted and welded by the HF induction welder and the welded seam is squeezed Immediately after welding at welding section of tube mill .At this stage, the steel pipe welding is completed, the welded tube through cooling and sizing mill and straightening stand, the final precision steel round or square&rectangular tube is done.
1) ERW76 welded tube mill is one model of ERW tube mills .The ERW76 welded tube mill utilizes HF induction welding to manufacture Ø32mm---Ø76mm steel tube and 25X25mm---60x60mm square tube and 30X20---40X80mm rectangular tube with the thickness 0.8--4.0mm .
2) ERW76 welded tube mill has conventional forming technology, it is ideal for round tube , square&rectangular tube.best control on the tube dimension tolerance and length accuracy.
3) For the square and rectangular tube production . We can provide 2 forming processes as option .
Option1: the steel strip is shaped into round tube by forming machine .after HF welding , the round tube is shaped into square or rectangular tube by sizing machine ,and then the square or rectangular tube is straightened by 2 -Turkey head .
Option2:The steel strip is shaped into round tube by forming machine .after HF welding , the round tube is shaped into square or rectangular tube by 3-Turkey head ,and then the square or rectangular tube is straightened by the 4th -Turkey head .
One of the forming processes can be determined as per the quantity of square&rectangular and round tube .so that the roller investment can be saved maximum.
4) ERW76 welded tube mill is a tailored-made steel tube production line . We are able to design and manufacture the tube mill as per customer’s requirement ,Such as ,the steel tube diameter and thickness , raw material type and raw material yield strength ,specification of tube mill and your floor space dimension,power supply condition .
Before making quotation ,we will send the customer a request form to customer’s specific requirement. So that we make quotation that completely meet customer’s demand.
5) We are not only a provider of tube mill, but also a provider of solution for the problem that arise in the course of Pre-sales, in sales, and after-sales.
Raw Material specification | The Material | HR/CR carbon steel .Galvanized steel |
Width | 100mm-240mm | |
Thickness: | 0.8mm-4.0mm | |
Coil ID | φ450- φ550mm | |
Coil OD | Max :φ1600mm | |
Coil Weight | 1.5-3.0.Tons | |
Steel tube specification | Round Pipe | 32mm-76mm |
Square & Rectangular Pipe | 25*25mm-60*60mm | |
20*30mm-40*80mm | ||
Wall Thickness | 0.8-4.0mm(Round Pipe) | |
0.8-3.0mm(Square&rectangular tube) | ||
Speed of tube mill | Max.130m/min | |
Pipe Length | 3m-12m,can be defined by the customer | |
The required floor space | 65mX6m(L*W) | |
Total power | 650KW | |
Hydraulic Uncoiler→Shear and end welding machine( strip joiner) →Accumulator→forming machine→HF welding →Eddy current testing →Water Cooling→Sizing machine→ Flying Saw →Run out table→ Packing → Warehouse Storage.
1. We have gradually abandoned the idea of designing only two-dimensional drawings. We now design not only two-dimensional drawings but also 3D drawings.
With advanced 3D modeling and drafting software, allows us to analyze functionality of each part and make any improvements as needed.We can promptly detect design errors.
2. 31 sets of CNC vertical machining center and 6 sets of CNC horizontal machining center,3 sets CNC boring machine , 2 set of heavy duty CNC gantry milling machine have been in use. This lead to tight accuracy and high productivity, In this way, errors caused by match machining can be avoided, Meanwhile, the delivery time can be ensured.
3. With the advanced COPPRA software , Out engineer not only calculate the roller weight but also design roller at high efficiency.
1. Heavy Industrial Structures and Frames (Core Applications)
1) Heavy Machinery Frames: Cabs and panels for CNC machine tools, injection molding machines, die-casting machines, printing presses, and construction machinery.
2) Industrial Assembly Lines and Automation Equipment: Frames and guide rails for large conveyor lines, assembly lines, robotic workstations, and elevators.
3) Warehousing Systems: Columns and beams for heavy-duty racking and drive-through racking, with load capacities up to several tons.
4) Steel Platforms and Stairs: Factory operating platforms, equipment maintenance platforms, and emergency stairs (typically using patterned plate or grating for steps).
1) Steel Structures: Main and secondary beams, and purlins for small factories, warehouses, gymnasiums, and supermarkets (lighter than traditional H-beams, suitable for buildings with shorter spans).
2) Large Building Decoration and Curtain Wall Frames: The supporting steel structure behind the glass and stone curtain walls of high-rise buildings.
3) Bridges and Passageways: Pedestrian overpasses and load-bearing structures for pedestrian walkways within factories.
5) Large Guardrails and Protection Systems: Highway crash barriers, factory wall guardrails, and heavy-duty protective covers for machinery and equipment.
3. Fluid and Gas Transportation (Main Applications for Round Tubes)
1) Round tubes of this specification can withstand higher pressures and are used in more critical transportation routes.
2) Industrial Piping Systems: Main compressed air pipelines, circulating water pipelines, and hydraulic pipelines within factories.
3) Oil and Gas Transportation: Low-pressure oil and gas gathering and transportation pipelines.
4) Municipal Engineering: Water and heating supply networks within residential communities.
1) Automobiles and Commercial Vehicles: Automobile chassis components, auxiliary structures for truck chassis, bus body frames, and luggage racks.
2) Specialized Vehicles: Superstructures for specialized vehicles such as sanitation trucks, fire trucks, and RVs.
3) Agricultural Machinery: Frames and protective structures for agricultural machinery such as tractors and harvesters.
4) Rail Transit: Internal structures such as seat frames and luggage racks within train and subway cars.
1) Flagpoles and Light Poles: Standard flagpoles used in schools, squares, and stadiums, as well as garden and streetlight poles along roadsides (tapered poles are typically required, but straight poles can also be used for internal structures or smaller poles).
2) Sports Facilities: Bases for large basketball hoops, goal frames for soccer balls, fence posts for tennis courts, and bleacher supports for gymnasiums.
3) Greenhouses: Load-bearing columns and main arches for large multi-span greenhouses.
