Shijiazhuang Zhongtai Pipe Technology Development Co., Ltd
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Green Mild Steel Energy Supply Pipe Easy To Operate Square pipe mill
Direct Square to Square Pipe Mill Introduction:
It is directly roll the steel strip and bend it to square & rectangular shape, then weld it to finish the formation.It has several distinct advantages:
1.Compare with round into square & rectangle forming way, this way is better for the shape at the edge of cross section, comparatively, semidiameter of inner arc is Small, and the brim is flat, outlook is regular.
2.the whole line load is low, especially the sizing parts.
3.The width of steel strip is small about 2.4-3% than round into square & rectangle, it can save the consume of raw material.
4.It adapt the multi-point bending way, avoid the axial force and side abrasion, reduce the forming step while ensure the quality, meanwhile it reduce the power wastage and roller abrasion.
5.It adapt the combined type roller on the most of the stands, it realize that one set of roller can produce dozens of square & rectangle pipe with different specification, it decrease the store of roller, low the cost about 80% on roller, Fast the bankroll turnover, short the time one new product design.
Square Tube Mill Product Parameter:
| Product & yield | Round Pipe | 273mm-508mm Thickness:3.0mm-18mm |
| Square & rectangle tube | 210mm×210mm-400mm×400mm Thickness:3.0mm-18mm | |
| Length | 6m-12m Length Tolerance:±3mm | |
| Production Speed | 25-45m/min | |
| Production Capacity | 30000ton/year | |
| Consumption | Mill Installed Capacity | 220kw |
| Line Area | 300m(length)×20m(width) | |
| Worker | 6-8 workers | |
| Raw Material | Carbon Steel Coil | Carbon steel coil Q235B(ASTM GR·D,σs 230) |
| Width | 840mm-1600mm Thickness:3.0mm-18mm | |
| Coil ID | 580-700mm | |
| Coil OD | Max 2300mm | |
| Coil Weight | 30.0t |
Technical flow
Scrolling up→ Uncoiling → Shear and Welding→ Spiral accumulator→ Forming → H.F. induction welding→ External burr removing→ Cooling → Sizing→ Flying saw → Run out table →Inspecting→ Packing→ Warehouse
Model List:
| Model | Round pipe mm | Square pipe mm | Thickness mm | Working spead m/min |
| ERW20 | Ф8-Ф20 | 6x6-15x15 | 0.3-1.5 | 120 |
| ERW32 | Ф10-Ф32 | 10x10-25x25 | 0.5-2.0 | 120 |
| ERW50 | Ф20-Ф50 | 15x15-40x40 | 0.8-3.0 | 120 |
| ERW76 | Ф32-Ф76 | 25x25-60x60 | 1.2-4.0 | 120 |
| ERW89 | Ф42-Ф89 | 35x35-70x70 | 1.5-4.5 | 110 |
| ERW114 | Ф48-Ф114 | 40x40-90x90 | 1.5-4.5 | 65 |
| ERW140 | Ф60-Ф140 | 50x50-110x110 | 2.0-5.0 | 60 |
| ERW165 | Ф76-Ф165 | 60x60-130x130 | 2.0-6.0 | 50 |
| ERW219 | Ф89-Ф219 | 70x70-170x170 | 2.0-8.0 | 50 |
| ERW273 | Ф114-Ф273 | 90x90-210x210 | 3.0-10.0 | 45 |
| ERW325 | Ф140-Ф325 | 110x110-250x250 | 4.0-12.7 | 40 |
| ERW377 | Ф165-Ф377 | 130x130-280x280 | 4.0-14.0 | 35 |
| ERW406 | Ф219-Ф406 | 170x170-330x330 | 6.0-16.0 | 30 |
| ERW508 | Ф273-Ф508 | 210x210-400x400 | 6.0-18.0 | 25 |
| ERW660 | Ф325-Ф660 | 250x250-500x500 | 6.0-20.0 | 20 |
| ERW720 | Ф355-Ф720 | 300x300-600x600 | 6.0-22.0 | 20 |
Square Tube Mill Auxiliary Machines:
Customers can trust us to buy the auxiliary machines. Our choice of suppliers for the auxiliary parts is made after 22 years of experience.
Un-coiler
Function: Used for supporting strip steel coil and open it as strip steel so as to make preparation for the pipe forming process.
Shearing butt welding
2 Types: Automatic & Manual
Function: Shear & end welder parallel cuts the head of the strip coming out of uncoiler and the tail of the strip steel going into the accumulator, and weld them together to form a smooth and continuous line of strip steel.
Strip Accumulator
Function: Accumulator is used to accumulate strip steel from uncoiler and provide strip steel to forming unit. It leaves time for the shear & end welder for strip welding and stores certain amount of strip for continuous forming.
Solid State High Frequency Welder
Function: The welder is used for welding edge heating with high-frequency heating device. The whole set of solid-state H.F welder comprises of rectifying cabinet, inverter, output cabinet, connecting optical fiber, closed loop water cooling system, central operator console, and mechanical adjustment device.
Saw Cutting System
Function: Flying saw is used to cut tube during static and motion status in continuously production into desired length.
Straightening Machine
Function:Straightening machine is a finishing equipment for the high-frequency straight seam welded pipe production line, which is used to straighten the steel pipe to eliminate the stress and bending after the steel pipe forming and welding.
Automatic Stacking and Packing Machine
Function: Electrical control using PLC control, touch screen, to achieve human-computer dialogue, manual, automatic between the free conversion.
Company Introduction
FAQ:
Q:Are you manufacturer?
A:Yes,we are manufacturer. We have 4 factories ( Machining, Assembling, Heat treatment, and
Moulding ). We also have our own R&D department. Welcome to visit us.
Q:What kind of payment term do you do?
A: We do T/T and L/C.
Q:What info do you need before giving me the price and proposal?
A: Since we design individual machine based on our customer's requirement, we need your desired
products' basic dimension, including all the pipe diameter(or tube length), thickness range , usage,
raw material steel grade, coil weight, and degree of automation.
Q: What should I do if I just start a new business?
A:Contact us immediately ,we provide free consultant for pre-sales service .Also we can help you
solve the raw material (steel coil) purchase, worker training, international market price, and more.
Q:How do you do QA?
A:We have special team to do strict QA,this is one of our strengths:
(1)Every gear box will be tested for 8 hours with oil inside to guarantee there is no leak.
(2)Every shaft will be inspected for the centering jumpiness.
(3)Every roller will be checked to make sure its in the range of tolerance critical parts will be
inspected for all dimensions.
Q:Why I should choose you? what are the differences between you and other Chinese suppliers?
A:We are concentrate on pipe making machines for more than 20 years. We have constructed many
steady trading partners in Asia,Africa, middle east, Europe, and South America throughout the years.
Our innovative designed production line and each single unit of the production line are not only
economical but also practical.