​Reconditioning Of Engine Parts

2-Stroke Engine Parts Reconditioning​

Cylinder Head

• Water jacket o-ring groove area reconditioning

• Liner landing surface reconditioning

• Exhaust seat landing area reconditioning

• Injector hole crack repair by Inconel 

 

Exhaust Valve Spindle & Seat

• Exhaust valve spindle Inconel reconditioning

• Exhaust valve spindle stem reconditioning by thermal spraying and grinding

• Exhaust valve seat reconditioning

 

Piston Crown

• Ring groove reconditioning by hard chrome plating

• Top surface reconditioning by Inconel 625

 

Piston Skirt

• Piston skirt rubbing bandage replacement

 

Piston Rod

• Piston rod reconditioning by laser cladding and grinding

 

Cylinder Liner

• Cylinder liner honing

• LDM measurement in-situ

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4-Stroke Engine Parts Reconditioning

Crankshaft

• Inspection (OD measurement, MPI crack test, hardness check, run-out measurement)

• Grinding in workshop

• Grinding in-situ

• Polishing and superfinishing

• Crankshaft straightening

• Annealing (heat treatment) of overhardened journals

 

Bedplate or Engine Block

• Engine block inspection

• Laser or optical bore alignment measurement

• In-line boring of main bearing bores

• Cast iron welding or metal stitching

• Grinding of liner landing surface

• In-line boring of camshaft housing 

• Broken stud removal by machining

 

Connecting Rod

• Connecting rod inspection, crack test, straightness check

• Big end bore reconditioning

• CNC machining of serration faces

• Small end bush replacement

 

Cylinder Head

• Inspection and reporting

• Chemical cleaning

• Pressure testing

• Inlet & exhaust valve grinding

• Valve seat grinding

• Valve seat removal and assembly

• Valve guide removal and assembly

• Machining of seat pocket to oversize

• Injector sleeve removal and assembly

• Surface grinding

• Cast iron welding or laser cladding on cylinder head

• Valve Seat fabrication

• Reconditioning of rockerarms

 

Cylinder Liner

• Inspection, crack test and reporting

• Liner honing

• Machining of liner bottom landing surface

• Local repairs by laser cladding

 

Piston

• Inspection and reporting

• Reconditioning of ring grooves by laser cladding or hard chroming

• Machining of piston crown and skirt contact surfaces

• Polishing of piston and piston pin

 

Water Jacket

• Inspection and reporting

• Reconditioning of water jackets by laser cladding

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On-Site Machining & Alignment Services

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White Metal Bearing Repairs

Our workshop specializes in centrifugal white metal casting, using a class-approved process to ensure the highest quality and reliability. We offer a wide range of white metal alloys, tailored to meet the specific requirements of your application.

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World-Class Stern tube Repairs

Our expertise and advanced facilities enable us to provide some of the fastest stern tube repairs in the industry. With a focus on efficiency and precision, we deliver exceptional results that minimize downtime and keep your vessel operational.

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Laser Cladding & Thermal Spraying

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• DMI DUBAI

• DMI Dalian (CHINA)

• DMI Nantong (CHINA)

• DMI HOUSTON (USA)

• DMI Guangzhou (CHINA)

• DMI Drechsler GmbH (Germany)

• DMI Offshore (Singapore)

 

DMI are world leaders in the surface treatment of new and the repair of worn components for all industries. New components are surface treated to reduce manufacturing costs and to improve performance. Worn components are surface treated to return them to original or better than original condition. Processes include weld overlaying, metal spraying, hard chrome, nickel & zinc electroplating, anodising, alocroming, PTFE coatings, phosphating, painting, machining, grinding and honing.