Our team have decades of experience, going back as far as the 1980s, Royce Onsite Machining has built an extensive knowledge base in on-site crankshaft repairs. Our expert teams quickly deploy a wide range of machining skills and techniques for crankshaft, crankpin, and main bearing repairs on both large and small engines.
We have successfully completed numerous complex on-site repairs worldwide, enabling our customers to avoid the costly and risky process of engine strip-down and remote workshop removal.
Trusted Global Experts in Emergency Crankshaft Grinding
Royce Onsite Machining is recognised globally as a leading provider of emergency in-situ crankshaft grinding and machining services, supporting all major industries across every continent.
Advanced Orbital Machining Technology
Our crankshaft repair services utilise the latest orbital machining technology. Our skilled technicians specialise in refurbishing crankshafts, crankpins, and main journal bearings on land-based sites and aboard sea-going vessels. Our offshore-trained engineers are also available to travel worldwide, including offshore oil and gas platforms.
We maintain a vast inventory of portable orbital machining equipment, which can be shipped or hand-carried globally. Our equipment includes orbital turning, grinding, honing, and superfinishing tools that operate without shaft rotation. This allows us to machine and polish all sizes and shapes of crankpin journals (also known as “big end” or “large end” journals) and grind main journal bearings on-site to precise OEM standards.
Industries and Equipment Serviced
We provide on-site crankshaft repair and grinding for a wide range of equipment, including:
- Diesel engine crankshafts (4-stroke and 2-stroke main and auxiliary engines)
- Reciprocating compressor crankshafts
- Forging press crankshafts
- Steam engine crankshafts
- Pump crankshafts
- Motor crankshafts
Partnership with OEMs and Clients
We work closely with OEMs, engineers, and site managers to ensure every in-situ machining project is delivered efficiently and meets stringent industry standards. Our management team brings over 50 years of combined experience, ensuring skilled technicians and the right equipment arrive exactly where and when needed.
Royce Onsite Machining has earned a reputation for delivering high-quality results on every on-site machining project worldwide.
Crankshaft Repair & Recovery Services
- Rapid inspection of crankpin bearing journals and main bearing journals
- Non-destructive testing (Magnetic Particle Inspection) to detect cracks
- Electronic hardness testing
- Peen straightening for bent shafts
- On-site machining, grinding, honing, and superfinishing of crankpin and main bearing journals
- Annealing and portable heat treating to remove hard spots and heat damage
- Machining of counterbalance weight surfaces, including thread repairs
