Case Studies: Onsite Thread Repair

Royce Onsite Machining is a leading provider of precision on-site line boring services, designed specifically for large plant components that are impractical to transport to a workshop. Our expert team specialises in machining individual bores on items such as diesel engine bedplates, cylinder blocks, liner landings (including inserts), and various other large equipment that have experienced wear or erosion.

Our on-site line boring services encompass a wide range of capabilities, including the machining and alignment of multiple in-line bores, such as main journal pockets, with exceptional accuracy—even when the bores are spaced several metres apart. Trust Royce Onsite Machining for reliable and efficient solutions to your machining needs.

Crankshafts are often subjected to increased hardness and bending (runout) due to high heat exposure and rapid cooling following a failure. This process frequently leads to conditions that exceed OEM tolerance limits, resulting in significant stress on the component.

At Royce Onsite Machining, we employ specialised ceramic blankets to carry out controlled crankpin annealing—a precise heat treatment method aimed at decreasing both hardness and runout. When used alongside our advanced precision machining services, this technique effectively restores crankshafts to meet OEM specifications.

Our annealing process can lower crankpin hardness by up to 300 HB, effectively mitigating harmful excess hardness and considerably enhancing the longevity of your crankshaft.

Royce Onsite Machining promptly addressed a time-sensitive repair of a damaged prop shaft flange face within just one day. Utilising specialised equipment, we established the bore as the datum and precisely machined the flange face. Our work adhered strictly to OEM specifications, allowing for a maximum material removal of 4.5 mm. Trust Royce Onsite Machining for efficient and reliable repairs that meet industry standards.