OUR SERVICES
Crankshaft & Connecting Rod Reconditioning
Washington Iron Works delivers precision industrial crankshaft reconditioning, large-scale crankshaft grinding, connecting rod resizing, and metallurgical testing.
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Industrial Crankshaft & Connecting Rod Reconditioning Services
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Uncompromising Microscopic Precision for High-Load Powertrains
Large-bore industrial engines and heavy reciprocating compressors operate under thousands of pounds of continuous firing pressure. Within these heavy mechanical systems, clearances between the crankshaft journals and hydrodynamic bearings are incredibly fine. Even a microscopic deviation in journal roundness, minor shaft taper, or subtle axial misalignment will disrupt the protective oil film layer. This leads to immediate metal-to-metal contact, severe thermal expansion, friction damage, and eventual catastrophic engine block destruction.
Because the margins for error are nonexistent, reconditioning these massive powertrain components requires specialized machine tools, temperature-controlled execution, and veteran technical expertise. Our dedicated crankshaft and rod reconditioning department utilizes a methodical approach to component restoration. We treat every asset that enters our facility with rigorous engineering discipline. Rather than executing simple surface polishes, our technicians thoroughly evaluate the component’s structural integrity, correct subtle geometric twists or bends, and precision-grind friction surfaces to flawless finishes. This calculated process minimizes friction, optimizes oil clearance retention, and extends the overall operational lifespan of your engine or compressor fleet.
We are Here for You 24/7
Our Crankshaft & Rod Reconditioning Capabilities
Operating out of our high-capacity industrial shops, our technicians utilize specialized, large-scale grinding machinery, meticulous resizing tools, and advanced quality-control instrumentation.
Large-Scale Industrial Crankshaft Grinding
Our facility is equipped with heavy-duty, long-bed crankshaft grinding machines designed to accommodate massive, high-tonnage shafts from large-bore industrial engines and compressors.
- Geometric Correction: We analyze the shaft for runout and straightness, adjusting the machinery to eliminate any axial distortion.
- Precision Grinding: Our master machinists precision-grind worn main journals and crankpins to exact undersizes, removing surface score lines, ridges, and heat checks while maintaining original factory fillet radii to prevent structural stress points.
- Micro-Polishing: Every ground journal undergoes a multi-stage micro-polishing process to achieve a mirror-like finish, lowering friction coefficients and maximizing bearing life.
Precision Connecting Rod Resizing & Overhauls
Connecting rods experience relentless tension and compression cycles that can cause the big-end and small-end bores to stretch, become out-of-round, or twist over time.
- Our Process: We thoroughly clean and inspect the rods, check for axial alignment, and grind the mating faces of the rod and cap.
- Resizing: Once reassembled and torqued to exact specification, we hone the internal diameter back to its original, perfectly concentric OEM dimension, ensuring proper bearing shell crush and seating.
- Pin Bushing Replacement: We install and precision-bore new small-end wrist pin bushings, guaranteeing perfect parallelism with the crankpin journal.
Structural Integrity & Non-Destructive Testing (NDT)
Before any grinding or machining begins, every component undergoes rigorous non-destructive testing. We utilize high-resolution magnetic particle inspection (MT) across the entire shaft and rod body, particularly around critical oil holes and fillet radiuses, to isolate subsurface micro-fissures or material fatigue that could compromise the component under load.
Supporting Heavy Reciprocating Infrastructure
Our specialized reconditioning capabilities keep critical high-horsepower fleets running across the country
Midstream Oil & Gas
Reconditioning large crankshafts and rods for massive natural gas pipeline transmission compressors.
Power Generation Utilities
Restoring high-capacity diesel and gas-fired stationary power-generation engines.
Marine Propulsion
Precision grinding for large-bore marine diesel engines, tugboat shafts, and auxiliary power units.
Heavy Industrial Pressing
Reconditioning eccentric shafts and heavy-duty connecting links for massive forging and stamping presses.
Restore Your Powertrain Reliability
Don’t risk a catastrophic engine or compressor failure due to worn journals or out-of-round rods. Contact our specialized reconditioning team today to discuss your component measurements, request a detailed quote, or coordinate logistics for your heavy machinery assets.
