What is the LOCK-N-STITCH LNS method? Metal crack repair technology
LOCK-N-STITCH (LNS method) is sold and repaired by LNS JAPAN Co., Ltd. in Japan.
This is a technology that uses specially designed screws and reinforcement materials (LOCK) at the metal crack site to physically remove the crack with a metal touch and bond the metal together.
■□■ A completely new method for repairing metal cracks that does not involve welding ■□■ The process consists of drilling → tapping → inserting special screws and reinforcement materials (LOCK), and unlike traditional welding repairs, it does not apply heat that could damage the base material of the equipment. By avoiding the application of heat, secondary cracks do not occur, and heat treatment and machining are also unnecessary. As a result, repairs can be completed in a short period, leading to extended equipment life with improved precision, durability, and low costs. For more details, please contact us.
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basic information
**Advantages of LNS Repair** *Comparison of LNS technology with welding and existing similar products* ○ Repair Time Repairs can be completed quickly and safely using air-operated tools that do not require complex methods like preheating. ○ Ease of Installation Using a specific jig and following a manual, work of the same quality can be performed regardless of the installer. ○ Surface Treatment The shoulder of the screw of the LNS C-pin is inserted inside the surface, remaining concealed during installation, allowing for a clean surface treatment after installation due to metal-to-metal contact. ○ Maintenance of Air Tightness The LNS C-pin is installed evenly without uneven stress during installation, maintaining air tightness without the need for epoxy or adhesives used in other similar products, allowing for high-pressure air tightness. ○ Pulling Force The LNS C-pin and reinforcement lock provide strong pulling force by being installed at all crack locations. ○ Versatile Application With various sizes of screws and reinforcement locks in LNS products, they can be applied diversely depending on the repair situation and conditions, particularly suitable for corners and rounded corners. ○ On-Site Work In most cases, repairs can be done on-site, and overseas business trips are also possible. ● For more details, please contact us.
Price information
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Delivery Time
※The delivery date may vary depending on the content, so please feel free to contact us.
Applications/Examples of results
【Cement Plant Equipment Achievements】 ○ Gearbox Casing ○ Roller Tire ○ Kiln Tire ○ Trunnion ○ Girth Gear ○ Raw Material Silo Discharge SF Case ○ Compressor Casing ○ Finish Mill Body Crack Repair 【Power Generation Equipment Achievements】 ○ Steam Turbine Casing ○ Gas Turbine Casing ○ Boiler Section ○ Pump Casing etc. 【General Industrial Machinery Achievements】 ○ Press Machinery (Automotive) ○ Pumps ○ Bases ○ Injection Molding Machines ○ General Purpose Engines ○ Marine Engines Others For more details, please contact us.
Detailed information
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EDM Pump Casing Crack Repair Repair the pump casing crack using the LNS method in two days. For metal crack repairs, please contact "LNS JAPAN." We will solve your maintenance concerns.
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Company information
<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.