More than 23 years…
High Frequency (HF) longitudinal welded pipe production line / pipe making machine / tube mill is designed to produce welded pipes of 114mm to 720mm in OD and with a maximum wall thickness of 22mm, as well as corresponding square and rectangular pipe.
It utilizes the round-to-square technique while allowing customers to use one set of rollers to produce all square pipe range within the set range, and shared-use break-down section rollers when producing round pipe, saving significant roller cost and increase productivity. Combined with our technique, it allows full automatic adjustment of roller position with minimum to none need of manual adjustment, reducing labor maintenance cost and risk of hazard.
Scrolling Up→ Uncoiling → Shear and Welding→ Accumulator→ Forming→ HF induction Welding→ External Burr Removing→ Cooling → Sizing→ Flying Saw → Run Out Table →Inspecting→ Packing→ Warehouse
Highly automated one-button operation. Servo motor automatic positioning.
Round-to-square Share-roller technique. Only 1 set of rollers to fulfill all specifications.
Data transmission is achieved by connecting PLC main station with network.
| Line Component | Uncoiler Shear & end welder Accumulator Forming & sizing machine H.F welder Flying saw Stacking & packing machine |
| Special | Hydraulic testing machine, intermediate frequency annealing machine, ultrasonic flaw detection machine, etc. |
|
Material |
High strength steel, Low carbon steel, GI, etc |
| Strip Steel Width | 90 mm- 400mm |
| Strip Steel Thickness | 1.2 - 4.0mm |
|
Strip Steel Coil |
Inner diameter:Φ 508-610 mm Outer diameter:Φ Max.2000 mm Weight: Max=4.0 T |
| Round Pipe | Φ8-Φ89 mm |
| Thickness | 1.2-4.0 mm |
| Square Tube | 10×10-70×70 mm |
| Thickness | 1.2-4.0 mm |
| Rectangular Tube | 20×40-50×100 mm |
| Thickness | 1.2-4.0 mm |
| Length | 6-12 m |
| Forming Speed | 50-120 m/min (Attn: Max pipe diameter thickness doesn’t correspond with the max speed) |
| Feeding Direction | Left feeding (or right feeding), option by customer |
| Electric Installed Capacity | Approx. 600 kw |
| Production Line Size | 70×6 m |
| Color of Machines | Blue or customized |
| Yearly Out-put | About 40,000 tons |
Line speed can be up to 120m/min.
Low unit wastage and low production cost.
Diameter error is only 0.5/100 of the pipe OD.
Shijiazhuang Zhongtai Pipe Technology Development Co., Ltd.was established in 2000 locating in Shijiazhuang, the capital city of Hebei Province. The factory covers an area of 67,000 square meters. Our main products consist high frequency straight welded pipe production line, cold roll steel production line, multi-function cold roll steel/welded pipe production line, slitting line production line, stainless steel pipe mill, various pipe mill auxiliary equipment and rollers, etc.