TPT November 2009

T ube M ills and R oll F orming L ines

Dual capacity high-frequency quick-change welded tube mill system is lauched to market

T&H LEMONT has commissioned a new dual capacity, quick change tube mill system. This dual capacity mill is capable of producing standard mechanical rounds and hollow structural shapes for both small and large sizes. The dual capacity tube mill system was developed by T&H Lemont in conjunction with Searing Industries, USA. Searing Industries approached T&H Lemont with the need to increase production of a wide range of structural products on a single production platform. The dual capacity mill allows for a greater range of production sizes in a minimal amount of floor space. In effect, the dual capacity mill gives a pipe and tube producer the ability to produce a range of pipe and tubing normally produced from two different sized mills. With a dual capacity mill, the entire entry and exit equipment are designed to be universal; as are the mill bases and drive systems. The “dual capacity” of this mill is realised by two different (size) sets of quick change subplates designed to mount on a single mill base system while utilising a universal drive system. One set of subplate mounted driven stands (T&H Model WU35M-12) was designed for producing “mother” tubes from 1.250" to 5" with wall thickness from 0.083 to 0.25". The second set of subplates (T&H Model WU60M-12) was designed to produce “mother” tubes from 3.75" to 8" diameter with wall thickness from 0.125" to 0.5".

The distance between the stands was optimised on each set of subplates for the products produced. Each set of subplates included three driven squaring clusters to form the shapes. Production was furthermore increased and change- over times minimised by employing the new T&H autoset automatic stand adjusting system. This motorised, programmable system allows the operator to electronically dial in the roll stands for proven recipes of individual product and gauge changes. Additionally, this mill was designed to be serviced by an overhead crane system assisting in the change out of the subplates. The subplates are held to the base by a

quick release hydraulic clamping system, which allows the subplates to be connected rigidly and precisely to the mill base and, when necessary, disconnected from the base quickly and efficiently. “The increased capacity of this new mill enhances our ability to meet the needs of our customers and at the same time keeps our plant overhead to a minimum, keeping us extremely competitive in these changing markets,” stated Lee Searing, president of Searing Industries.

T&H Lemont – USA Fax: +1 708 482 1802 Email: bcharvat@thlemont.com Website: www.thlemont.com

 The T&H Lemont dual capacity tube mill

Chinese manufacturer with US partnership unveils new pipe mills and cold-rolled machines

DALIAN Sage Group, China, has four subsidiaries and one institution, specialising in designing, developing and producing new tech products, and engaged in designing and manufacturing large metallurgy machinery. With a design team of almost one hundred middle and senior engineers, the company manufactures pipe mills, cold- rolled forming lines and stainless steel welded pipe lines. In 1995, Dalian Sage formed a joint venture with a US company with more than 90 years’ history in manufacturing HF welded

equipment and cold-rolled forming steel equipment. The equipment manufactured by Dalian Sage is sold to most areas of China, USA, Russia, Indonesia, Thailand and other areas of Southeast Asia. The company’s main production line equipment includes ERW mill lines, cold- forming mills, direct changing into square and rectangular pipe mills, stainless steel pipe mills, cross shear mills, pipe processing finishing line equipment and large diameter straight seam TIG welding pipe mills. Individual machines include

uncoilers, levellers, shear and butt welders, vertical/horizontal spiral accumulators, computerised length and cutting machines, pipe flatteners, end-facing and bevellers, tension reducing machines, 4-roll hot sizing machines, edge planers, and hydro testers using backlash radial sealing technique, satisfying API standards. Dalian Sage Group – China Fax: +86 411 39318111 Email: sage@mail.dlptt.ln.cn Website: www.csage.com

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