TPT March 2010

S traightening T echnology and E quipment

Automatic line for tube straightening and cutting RAVNI Technologies, France, is the manufacturer of the MDC10-TU- CFS automatic cutting line capable of straightening and cutting steel tubes, copper tubes, stainless steel tubes, and alloy materials. The machine operates with coils in a diameter range of 3-10mm. The standard line includes a single or double motorized encoiler synchronised with the machine, two feeding stations with Top grade and high chromium rolls SHANDONG Province SiFang Technical Development Co Ltd, China, is a manufacturer of top-grade rolls, with a focus on high chromium rolls for pipe straightening and ERW welding pipe processing. Such rolls are made from high chromium alloy

rollers or caterpillar, a rotating straightener and a slitting saw cutting unit. The straightness of the cut tube is in the region of 0.1mm and 0.2mm/m. The feeding speed and straightener speed are synchronised. All components of the line, operated by a programmable touch- screen, are designed to take advantage of this synchronisation. All the tools can be changed very quickly and the straightener is equipped with two preset cassettes allowing changing of tools without upsetting the regulations. A flying cut is available on all models. Ravni provides the service for the installation, training and setup of the machine all over the world. material through casting. They have properties including good wear resistance, uniform hardness from surface to core, and high tenacity. Steel rolled by high chromium roll also has a brighter surface. High chromium roll can be used in seamless pipe straightening and ERW welding pipe processing. Service results from customers show that the service life of high chromium rolls is two to three times that of forged steel rolls. According to SiFang,

The MDC10-TU-CFS machine

Ravni Technologies – France Fax: +33 477 90 58 65 Email: info@ravni.com Website: www.ravni.com

which specialises in producing rolls with high wear resistance capacity, the popularity of high chromium rolls is increasing among companies manufacturing seamless pipes. The company manufactures rolls of up to 2m OD and up to 10t in weight. Shandong Province SiFang Technical Development Co Ltd – China

Email: sdsf@vip.163.com Website: www.cnsdsf.com

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