Ideal for cross-shaped cracks that occur on the upper part of the cylinder head or cracks that have developed from plug holes or bearing holes.
■□■ A completely new metal crack repair that is not welding ■□■ The "C Series Pin" is a representative screw that showcases LNS's excellent technology. The CASTMASTER (C Series Pin) does not diffuse cracks; rather, it works in the opposite direction. In short, this pin features a special form of thread known as a "Spiral hook," which has a different angle compared to conventional screws. It pulls the crack areas together and secures them permanently. The key point is the thread shape, which differs from standard screws. It is better to use the largest diameter pin possible, and it can be applied from a thickness of 0.25" (approximately 6mm). For more details, please contact us.
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basic information
【Features】 By shaping the upper part of the screw thread to have a downward-facing thread that is oriented differently from the lower thread, pockets are formed between the threads. By providing these pockets, when the screw is tightened, the surrounding metal base material is engaged into the pocket side. This action creates a sealed state between the special screw and the metal wall. As the screw is tightened, it hooks into the pocket section with a downward angle of 30 degrees at the top of the screw, and when tightened further, a force is applied that pulls the screw upward. When an upward force acts on the screw itself, the surface of the upward 20-degree screw thread and the surrounding metal come into close contact. Furthermore, as the upward force on the screw increases, the surrounding metal that is in contact with the upward 20-degree screw thread is drawn inward. Ultimately, when the surrounding metal is in close contact with the screw thread and the proper torque is reached, it breaks at the neck portion of the screw head. After that, surface finishing work is performed (overlap work). As a result, when tightened with the C series pin, sealing and tensile strength are generated. By overlapping these C pins during installation, airtightness is maintained. ● For further details, please contact us.
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<We provide nationwide support> LNS JAPAN Co., Ltd. is an engineering company that performs maintenance and repairs on cracks and damages in equipment and metal structures across various industries (such as petroleum, chemicals, power generation facilities, ships, heavy equipment, automobiles, steelmaking, etc.) using the METAL STITCHING method. Currently, most of the critical equipment used across industries is facing a tough situation regarding new capital investment due to the global economic downturn. In Japan's industries, welding technology, which is widely used for metal repairs, has recently led to significant damage to many pieces of equipment and critical assets due to a shortage of skilled craftsmen and inexperienced welding repairs, with many cases worsening. Our company is the only certified company in Japan and is committed to continuous technological development in collaboration with our parent company, LOCK-N-STITCH INC, which continues to leap and grow as a global enterprise. We promise to ensure that our repairs do not cause deformation or secondary cracks due to heat, which have been issues with traditional welding repairs, while also shortening construction periods and reducing costs, thereby extending the life of equipment and ensuring high quality and prompt maintenance. For repairs where fire is not desired or where time is limited, please contact LNS JAPAN.
