Shandong Xincheng Pipe Co., Ltd. is one of the most reliable manufacturers and suppliers of dredging spiral steel pipe in China, also supports customized service. Welcome to buy premium dredging spiral steel pipe for sale here from our factory. If you have any enquiry about free sample, please feel free to email us.
1.Dredging steel pipes are formed using external control or internal control roller forming methods.
2.Before forming, the steel plate undergoes leveling, edge trimming, edge planing, surface cleaning, conveying, and pre-bending treatment.
3.A weld seam gap control device is used to ensure the welding gap meets welding requirements. The pipe diameter, misalignment, and weld gap are strictly controlled.
4.An air plasma cutting machine is used to cut the steel pipe into individual lengths. For each batch of dredging steel pipes, the first three pipes must undergo strict initial inspection, including:
Mechanical properties of welds
Chemical composition
Fusion condition
Surface quality of the pipe
Non-destructive testing (NDT)
Only after confirming the manufacturing process is qualified can full-scale production begin.
5.Each dredging steel pipe undergoes a hydrostatic pressure test. The pressure uses radial sealing, and both pressure and time are strictly controlled by a computerized hydrostatic testing system. Test parameters are automatically recorded and printed
An electric contact pressure gauge is used to control the pressure of hydraulic cylinders on both sides of the conveyor, ensuring stable material transport.
Dredging Steel Pipe Technical Parameters:
Pipe length: usually 6–12 meters per piece
Production Capacity:
Our company relies on strong equipment capabilities and technical talent advantages, with complete and strict testing methods. We can produce dredging steel pipes with diameters of 200–1200 mm and wall thickness of 5–32 mm in various specifications. Customized production is available according to customer requirements.
