Tools for tubes
Ernst Blissenbach: innovation in inside tube scarfing technology
Ernst Blissenbach GmbH is an international developer, manufacturer, and world market leader of inside tube scarfing tools for longitudinally welded tubes. On a national level, this leadership is confirmed by prestigious recognitions such as the TOP 100, the Mannesmann Innovation Award, and the Industry Award, which consistently rank Blissenbach among the most innovative companies in Germany.
For more than 30 years, the company’s pioneering spirit and continuous innovation have established Ernst Blissenbach as a leading supplier of inside tube scarfing systems. Its high-end tools, some of them patented, are developed from the customer's perspective to provide tube and plant manufacturers with maximum robustness, sustainability, and cost effectiveness for complex production processes. Tube producers and plant manufacturers around the world rely on Blissenbach products, process-technologies, and services.
The company's innovations enable safer, easier, more environmentally compatible and more economical production of longitudinally welded tubes through the BLISSart® Systems, helping customers remain competitive in an evolving market.
The versatility of the Blissart multipurpose tool
From the customer’s perspective, a brand represents trust built on proven performance. This principle has been demonstrated for many years by the Blissart inside tube scarfing tools for longitudinally welded tubes from Ernst Blissenbach GmbH, which are designed to perform their primary task: deburring the inside of pipes.
However, a hydraulic Blissart tool can also be converted into a weld bead rolling tool in just a few simple steps. The conversion is carried out by replacing the standard notched roller with a weld bead roller, featuring a continuous profile that flattens the weld bead. During this process, removing the cutting ring holder is also recommended.
Advantages of weld bead rolling
A major advantage of this method is the elimination of waste generated during the process, including small chips or, in the worst-case scenario, long ribbon-like chips.
Depending on the material and wall thickness, seam rolling can achieve a seam protrusion of approximately 0.1 to 0.2 mm, which may be entirely sufficient for many applications. To generate the required counterpressure, the pipe should also be supported externally in the area of the seam roller.
Suitable for different tool configurations
The suitability of a seam rolling tool ultimately depends on the end customer's specifications. The weld bead rollers can be easily integrated into both mechanical tools with a double-lever arm and hydraulic tools manufactured by Ernst Blissenbach GmbH.
The company is available to answer technical questions and provide personalized advice on selecting the most suitable solution for specific production requirements.
