RA Power Solutions specializes in metal stitching and metal locking, offering a trusted and effective solution for repairing cracked or damaged cast iron components. Unlike traditional welding, which can cause heat-induced stress and distortion, our cold repair techniques ensure structural integrity without compromising the original material properties.
What is Metal Stitching and Metal Locking?
Metal stitching and metal locking are specialized cold repair techniques used to restore cracked or damaged cast iron and other metal components without welding or heat application. These methods are widely used in industries where heat-based repairs could cause further damage, distortion, or weakening of the material.
Metal Stitching
Metal stitching is a mechanical repair process that joins broken metal parts by inserting precision-engineered metal stitches along the crack. These stitches restore the strength and integrity of the component while keeping the original structure intact. The process involves:
- Drilling holes along the crack in a controlled manner.
- Connecting the holes with a milled slot to create a secure stitching channel.
- Installing metal stitches or keys that pull the broken sections together, creating a seamless repair.
Metal Locking
Metal locking is an advanced reinforcement technique that works alongside metal stitching. And Enhance the repair’s strength. It involves placing metal locks perpendicular to the crack to distribute stress evenly, preventing further damage. This makes the repair permanent, durable, and capable of withstanding high loads and pressure.
Why Choose RA Power Solutions?
- 44+ Years of Experience – The only company in India with decades of expertise in metal surgery, metal locking, and metal stitching.
- Onsite Repairs – No need to dismantle heavy machinery; we repair components at your location, minimizing downtime.
- Global Reach – Our team has successfully completed over 1000 crack repair projects worldwide, serving industries across various sectors.
- Trusted by Leading Companies – Major corporations in India and internationally rely on us for cost-effective and high-quality repairs of heavy cast iron components.
At RA Power Solutions, we use portable and lightweight equipment, allowing our skilled technicians to provide onsite repair services at any plant or site in India and worldwide. With over 44 years of experience, we are the only company in India. With a proven track record in metal locking and metal stitching. Our expertise has made us a trusted partner for major companies globally.
Leading industries in India and across the world rely on our services. For crack repair and restoration of heavy cast iron components.
For more information on metal stitching service providers, metal stitching, cast iron stitching, or cracked engine block repair. please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
FAQs
The metal locking process is a mechanical repair method used to fix cracks or breaks in metal components without welding. It involves inserting metal locks and pins to restore structural integrity, making it ideal for cast iron or machinery repairs where heat from welding is not suitable.
We repair cracked metal by using special stitching pins. These pins are carefully installed by drilling and tapping along the crack, pulling the sides together. This creates a strong, interlocking row of pins that seals the crack and restores pressure-tight strength.
At RA Power Solutions, we use several proven methods to repair cracks commonly found in engine components. The most popular techniques include:
Tapping and Plugging – Sealing the crack by inserting metal plugs to restore strength and prevent leakage.
Sealants – Applying industrial-grade sealants for minor cracks that don’t require heavy machining.
Sleeve Insertion – Fitting a strong metal sleeve to reinforce and protect the damaged area.
Holes are carefully drilled along the length of the crack, then tapped and filled with special stitching studs. Each stud overlaps slightly with the previous one, creating a tight, pressure-resistant seal. This is the core step of the metal stitching process, where the crack is effectively replaced by a solid row of studs. After installation, the surface is peened for added strength, and any excess material is smoothly ground off.
Metal stitching is a mechanical repair method where we carefully drill and tap along the length of the crack, then insert special interlocking stitching pins. This creates a strong, pressure-tight seal—without the need for heat or welding.
