February 12, 2024

In-Situ Crankshaft Grinding & Crankpin Restoration Services

Restored 4-stroke crankpin journal after in-situ grinding by KIMI technicians

When a crankshaft’s breakdown occurs and you need to get back in operation quickly, the on-site recovery team from KIMI is the solution.

With more than 20 years of in-situ machining experience, KIMI has successfully completed over 300 crankshaft grinding and annealing projects on engines manufactured by leading OEMs, including MAN B&W, Yanmar, Daihatsu, Wärtsilä, MAK, and Hyundai Himsen.

In-situ grinding process on 4-stroke crankpin journals by KIMI Boarding Teams
In-situ grinding process on 4-stroke crankpin journals restoring roundness and surface finish.
In-situ grinding of 4-stroke crankshaft crankpin by KIMI Boarding Teams
In-situ grinding of a 4-Stroke crankshaft by KIMI Boarding Teams restoring crankpin roundness and surface finish according to the OEM repair scheme.
Worn 4-stroke crankshaft journal before in-situ grinding at KIMI
Worn 4-stroke crankpin journal before in-situ grinding
Certified KIMI technician performing NDT inspection on 4-stroke crankshaft journals after in-situ grinding
NDT inspection by a certified KIMI technician on 4-stroke crankshaft journals after the in-situ restoration process.
In-situ annealing of 4-stroke crankpin journals by KIMI Boarding Teams
In-situ annealing of 4-Stroke crankpin journals for controlled hardness restoration and stress relief.
Restored 4-stroke crankpin journal after in-situ grinding by KIMI technicians
Restored 4-Stroke crankpin journal following in-situ grinding process performed by KIMI technicians.

Indicated Crankshaft Types

BERGEN 32/40 L9PHFMAN B&W 6L48/60
DAIHATSU 6DC-17MAN B&W 9L21/31
DAIHATSU 8DK-32SULZER 12ZAV 40S
HYUNDAI HIMSEN 7H17/28WARTSILA 9L20
MAK 6M25WARTSILA 6R32D
MAK 8M32CYANMAR 6N18AL-UV
MAN B&W 5L23/30HYANMAR M200AL-DT

Why KIMIs

Custom-Designed Grinding Tooling for Any Crankshaft Type, Ensuring OEM-Compliant Journal Restoration.

Crankpin Grinding & Annealing from Ø135 mm to Ø600 mm, including Fillet and Oil Bore Reconditioning.

Level II EN473-Certified Engineers Performing NDT, Hardness, Roughness and Alignment Checks in Accordance with ISO 17025.

24/7 Support Ensuring Immediate Response to Critical Operational Needs.

Key Benefits

Reduced Downtime by Eliminating the Need for Crankshaft Removal.

Cost Savings by Avoiding Crankshaft Replacement and Purchase.

Precision Grinding Built on Experience and Continuous Innovation to Deliver Superior Results.

In-Situ Grinding

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