RA Power Solutions has built a strong reputation as a global leader in metal stitching and metal locking services, specializing in repairing cracked or damaged cast iron components. With over 44 years of experience, the company provides onsite, heat-free repairs that effectively restore the structural integrity of cast iron parts, including engine blocks, turbine casings, and industrial machinery. What is Metal Stitching and Metal Locking? Metal stitching and metal locking are advanced cold repair techniques used to restore fractures or cracks in cast metal without applying heat. This method helps prevent additional stress or distortion that could compromise the component's integrity. The process involves drilling and tapping holes along the crack, inserting specialized stitching pins, and securing them with locks or keys to form a durable, pressure-tight repair. These techniques are particularly useful for cast iron, which is difficult to weld due to its brittle nature and sensi...