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Tube mill of Part of the roll changing 

The non-roller-changing round tube mill is a new product developed by our company. When changing product specifications, all the forming machines do not need to replace the rolls. The fine-forming stand that used to need to replace the rolls does not need to replace the rolls on our unit. In this way, it can be Save a lot of roll investment, especially suitable for large and medium-sized mills. When changing product specifications, the adjustment of the rolls is also automated. Just enter the parameters such as pipe diameter, wall thickness, and material on the HMI, and all the rolls will be automatically adjusted to the appropriate position, and the material will be started directly for production. This saves a lot of adjustment time when changing models, makes it possible to produce multiple varieties and small batches of orders, increases the operation rate of the unit, and improves the start-up rate of the unit. And the automatic computer changeover can also make the adjustment accurate, reduce the error of manual adjustment, improve the yield of the unit, and increase the economic benefit of the unit.This unit can produce excellent API standard steel pipes, as well as general fluid steel pipes and structural steel pipes.

Recommended unit specifications

Process flow

Coiling - Uncoiling - Leveling - Shear Butt Welding - Looper Storage - Fine Leveling - Forming - High Frequency Welding - Water Cooling - On-Line Ultrasonic Testing - Intermediate Frequency Annealing - Stable Pulling - Air Cooling - Water Cooling - Sizing - Flying Saw Cut to length - flat head chamfering - hydraulic test - off-line ultrasonic welding seam and pipe body inspection - weighing and measuring length spray marking - finished product collection.