Milling Type Flying Cutoff

CNC orbital milling type cold saw cutoff is a new-generation high-tech equipment on ERW tube mill line&OCTG production line. It’s able to cut on-line in form of orbital milling, the medium and large tube products precisely into pre-set length, with the results of a beautiful cutting surface of smooth and burr free. It is completely […]

Heat Treatment

The OCTG heat treatment line integrates quenching, tempering, normalizing and annealing processes, providing full‑process thermal treatment for seamless casing, tubing and drill pipes to meet mechanical property requirements of API 5CT (J55, K55, N80, L80, P110, Q125 etc.). It adopts advanced continuous roller‑hearth furnace or induction heating system, with high‑precision temperature control and uniform heating. […]

Expander

The hydraulic expander is core forming equipment for OCTG (Oil Country Tubular Goods) production lines, specially designed for diameter expansion, inner‑outer surface finishing and dimensional correction of seamless oil casing, tubing and drill pipes. It eliminates pipe ovality, uneven wall thickness and dimensional deviation after piercing and rolling, ensuring consistent outer diameter, roundness and straightness […]

Solid State HF Welder

High Frequency Induction Solid State Welder is a specialized machine that uses H.F. electromagnetic induction to heat and join metals without melting the base materials.

Forming & Sizing Group

With W forming technology applied, the forming section is designed for continuous forming of steel strip into tubular shape.In the welding section,an H.F. induction welder is utilized.Then the tube is cooled in the cooling section.The outside diameter of the tube will be fined tuned at the sizing section of the mill line to the required […]

Cold Flying Saw

Cold saw flying cutoff adopts globally advanced motion control computer system, which helps realize to cut the tube, while remaining synchronized speed with tube mill line, precisely at pre-set cut length with a beautiful burr-free cutting surface. Cold flying saw own sophisticated programming, and S-curve control of travelling carriage starting and returning, to minimize mechanical […]

H.F.Induction Solid State Welder

Advantage High temperature and high voltage resistance Device miniaturization and lightweight Low loss and high frequency

Forming & Sizing Groups

With W forming technology applied, the forming section is designed for continuous forming of steel strip into tubular shape.In the welding section,an H.F. induction welder is utilized.Then the tube is cooled in the cooling section.The outside diameter of the tube will be fined tuned at the sizing section of the mill line to the required […]

Horizontal Table/Spiral Accumulator

Horizontal table/spiral accumulator is installed between the shear end welder and forming mill, the strip accumulator stores the strips of a large amount enough to allow for continuously supplying the strips to tube mill when loading next coil and shearing and butt welding the ends of strips. It plays an important role of ensuring a […]

Shear End Welder

Shear end welder is mainly applied at tube mill line. It shears the irregular parts of the tail and head of the coil, and then butt weld the ends of the consequent coil strips. After the completion of butt welding, the welded strip is fed into the accumulator for continuous production. We guarantee stable welding […]

Flattener

Flattener is applied to level the head and tail of the coil. The coil head and tail, after being leveled, are fed onto the shear end welding equipment to be shear end welder. Equipped at the entrance of equipment with adjustable center aligning vertical rolls, easily adjust the position of the strips to ensure the […]

Single Drum Un-coiler

The main function of the un-coiler is to receive the steel coils transported by the loading trolley, support the coils, and open the coils to feed them to the flattener or the next work process. It is one of the important equipment in the welded tube production line, preparing the steel strip for the tube […]