The main journal shapes the rotational center of a crankshaft. The grinding, machining, and polishing of crankshaft main journals is one of our specializations. On every repair, OEM tolerances and surface finish requirements are guaranteed. The diameter that can be accommodated is only constrained by the amount of engine space that can be used to mount our equipment. This kind of operation necessitates rotating the crankshaft. Typically, the engine barring gear is utilized for this. This kind of repair is frequently carried out on larger engines because smaller engines have limited access. B&W, ᴍᴀɴ, Mirrlees, Pielstick, Sulzer, and Wartsila are examples of common brands.
From their headquarters in the UK, our highly sᴋɪʟʟed professionals perform precise on-site repairs to large diesel engine crankshafts and crankpins all over the world. With our innovative, portable equipment, our specialists can rapidly get your engine going when they arrive at your location. We are the top crankshaft repair experts in the UK with 70 years of industry experience.
Nicol & Andrew, formed in 1952, was the first business in the world to carry out in-situ machining and repairs on marine propulsion units. To do the task on-site, we created the necessary equipment. While the engine was still running, our innovative “Orbitool” tooling ᴍᴇᴛʜod revolutionized crankshaft repair. The crankshaft does not need to be removed or rotated because the Orbital system revolves around the d crankpin. There will be a significant decrease in downtime for clients who have crankshaft (crankpin and main journal) problems. A repair can frequently be finished in just two or three days.
Almost every engine can be fitted with our engine-specific tooling. Small generator crankshafts all the way up to larger main engine types are accommodated in terms of sizes. The standard range for journal sizes is 75mm to 1000mm, and if necessary, even farther.
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Video resource: The Mechanic
