The welded pipe mill is a front swing intermittent production line, which is currently a mature and reliable advanced process and technology internationally. We have adopted latest internationally and domestically leading technology, with the main objectives of achieving advanced domestic levels in product quality, production costs, various consumption indicators, and labor productivity.
This welded pipe mill is a complete spiral welded pipe equipment that integrates mechanical, electrical automation control, and hydraulic control.
This machine is designed and manufactured with equipment safety operation protection devices and operator safety protection facilities. To protect the operational safety of important equipment and the safety of operators. If there is a self-protection function in the pressing mechanism of the delivery machine when there is a sudden change in plate thickness. The operability and safety of the entire equipment have been qualitatively improved.
Our company has more than ten years of experience in producing spiral welded pipe mill, and actively introduces and absorbs German MEG technology. The technical level has reached the international advanced level. Strictly control and strive for excellence in the manufacturing process. The products made can be completely comparable to foreign mills, but the price is less than 1/3 of that of foreign, which has a high cost-effectiveness.
This mill is the most advanced model of our company, with the following new and patented technologies:
Automatic centering function of uncoiler (patented technology):
The operation console of the uncoiler of this mill is equipped with a "center" button. When this button is pressed, the double cone head of the uncoiler will automatically align with the center line of the mill, making the center of the steel coil automatically align with the center of the mill. This way, the center of the steel plate fed is consistent with the center, without the need for vertical rollers to adjust back and forth, improving production efficiency and reducing instability in the production process.
Main Technical Parameters of the Mill
1.1 Raw Material Parameters
Steel coil width: 300-750 mm
Steel coil material: ST37, ST44, ST52
Outer diameter of steel coil: Φ 1100~ Φ 2200 mm
Inner diameter of steel coil: Φ 610~ Φ 760 mm
Single weight of steel coil: Mac×15 t
Steel plate thickness: δ= 3-9 mm;
1.2 Product Parameters
Outer diameter of steel pipe: Φ168.3 ~ Φ609.6 mm;
Steel pipe wall thickness: 3-10 mm
Steel pipe length: 4-12 m;
Delivery speed: 0.5~3.5 m/min
Welding speed: 0.6~3.2 m/min
1.3 Product Solution
1.4 Basic Parameters
Operation form: front swing, intermittent production, center feeding, center positioning;
Host preparation section: stop the machine and load the material on the head;
Forming method: intermittent production with front swing, central positioning, right spiral winding forming;
Production line direction: right in and left out
Forming angle : 45 °~75 °;
Maximum pitch of steel pipe: ≤ 1300mm;
Pipe unloading method: pipe dropper unloading;
Welding method: inner single wire and outer single wire submerged arc welding;
Delivery speed: 0.5-3.5m/min;
Welding speed: 0.8-3.2m/min;
Total installed capacity:~200KW;
Floor area: 24×150 m2
Factory height: Rail height 6 meters;
1.5 Process Flow:
Loading coil - Uncoiling - Pinching and leveling - Electric vertical roller - Shearing and butt welding - Electric vertical roller - Disc shear - Delivery - Pre bending guide plate - Forming - Internal and External welding - Fixed length cutting - Pipe dropper - Finished product.
