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How to Diagnose and Correct Common Plate Rolling Defects in Cylinders
A rolled cylinder can look acceptable when it leaves the machine but still create problems at the next operation. A small cone shape can prevent

Minimum Rolling Diameter and Springback for Rolled Steel Cylinders
Minimum rolling diameter is one of the most misunderstood figures in cylindrical sheet metal fabrication. A machine specification may list a reference diameter, but that

HOGI Automatic rolling welding production line
(Standard configuration: CNC four-roll plate bending machine + lifting-type longitudinal seam welding machine; automated production line for shells/shell sections; suitable for fan casings, stainless steel

Common Troubleshooting and Routine Maintenance for Longitudinal Seam Welding Machines
Once a longitudinal seam welding machine is installed and running, its long-term performance depends more on how it is maintained and how quickly problems are

Working Principle of a Longitudinal Seam Welding System for Tanks and Ducts
A longitudinal seam welding system is more than a welding torch moving along a straight line. It combines mechanical positioning, precise motion control, stable heat

How to Choose a Longitudinal Seam Welding Machine for Tanks and Ducts
When fabricating air tanks, gas cylinders, stainless chimneys or HVAC ducts, the quality of the longitudinal seam often determines the overall performance of the product.

