1. Structure principle

Self-aligned welding rotator including one power and one idle, after load on the work-piece, the roll will auto suit the work-piece, no need to adjust the center distance. The transmission mechanism: motor, multi step speed adjustable, roll, it can adopts frequency speed adjust.

2. Technical parameter

SAR-30 Series

● Maximum load capacity: 30T

● Suitable work-piece range: 600-4200mm

● Roller linear speed: 6-60m/h

● Speed adjust mode: frequency steepless speed adjust

● Motor power: 3KW

● Rubber roller diameter and width: 400*120mm

● Metal roller diameter and width: 2*390*40mm

SAR-50 Series

● Maximum load capacity: 50T

● Suitable work piece range: 750-4800mm

● Roller linear speed: 6-60m/h

● Speed adjust mode: frequency steepless speed adjust

● Motor power: 4KW

● Rubber roller diameter and width: 450*120mm

● Metal roller diameter and width: 2*440*50mm

SAR-100 Series

● Maximum load capacity: 100T

● Suitable work piece range: 1000-5500mm

● Roller linear speed: 6-60m/h

● Speed adjust mode: frequency steepless speed adjust

● Motor power: 5.5KW

● Rubber roller diameter and width: 500*120mm

● Metal roller diameter and width: 2*490*80mm

SAR-200 Series

● Maximum load capacity: 200T

● Suitable work piece range: 1800-8000mm

● Roller linear speed: 6-60m/h

● Speed adjust mode: frequency steepless speed adjust

● Motor power: 7.5KW

● Metal roller diameter and width: 550*260mm

        Friendship Machinery is a world leader in automatic welding machine for steel fabrication field and industrial pipeline construction projects, providing an extensive range of equipment for a variety of project applications.

        Year after year, automatic welding systems from Friendship Machinery are designed, tested, used, and continuously upgraded in every type of environment. Our customers enjoy industry-leading repair rates that are constantly improving: from less than 5% in 2001 to less than 2% in 2012.

        The performance record of our specially designed and manufactured automatic welding machine is the backbone of Friendship Machinery's reputation. The proven ability of every set machine is why customers have returned to us repeatedly for new applications, designs and machinery as their products change and expand. We are proud of that fact.

        Our main products: H&I beam welding line, T beam welding line, box column beam line, CNC multi-head plate cutting line, beam assembly machine, straightening equipment, steel pipe welding line, shot blasting machine, CNC flame/plasma cutting equipment, welding assisting machinery incl. Welding manipulator, welding positioner, turning roll (welding rotator), Membrane wall panel production line, which are widely used in many industries like aerospace, petrochemical, metallurgy, shipbuilding, chemical equipment, boiler pressure vessels, steel structure construction, etc.

        Since 1990s, the market for steel structure building industry boomed. With fast development, very short period for construction and beautiful external appearance, as well reasonable price was occupied in the market of building industry. We invest more on developing roll forming machine such as Metal roof &wall panels machines, C&Z purlin machines drywall Stud-track forming machines , Metal decks machines , No- girder and Column curves forming machines, Guard rails forming machines , Downspout pipes forming machines and so on.