MAN B&W S50MC-C S50MC L50MC Piston Crown
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Engine Series:Â Two-stroke, low-speed marine diesel engines (MC/MC-C types) with crosshead design for propulsion in large vessels.
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Bore Size:Â 500 mm nominal bore, optimized for high combustion efficiency and power output.
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Stroke Length:Â Approximately 2,000 mm (S50MC/S50MC-C), with L50MC variant offering longer stroke for improved efficiency.
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Cylinder Configurations:Â Inline 6S50MC-C to 12S50MC-C; adaptable to S50MC and L50MC for various power ratings up to 12,000 kW.
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Power Output:Â 7,500-8,500 kW per engine (depending on cylinder count and rpm: 127-140 rpm).
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MAN B&W S50MC-C S50MC L50MC Piston Crown
The MAN B&W S50MC-C, S50MC, and L50MC piston crown is the most important part at the top of two-stroke marine diesel engines with a 500mm bore. Made of steel that can handle high temperatures and pressures, it can handle harsh combustion conditions while making sure that power is transferred efficiently and lasts a long time.
This piston crown has chrome-plated ring grooves and a piston cleaning ring to keep carbon from building up. This helps the engine run at its best in tough marine conditions.
It works perfectly with the MC/MC-C engine family, which makes it great for container ships and bulk carriers. It also needs less maintenance and gets better fuel economy.
Model Details:
-> Compatible with MAN B&W S50MC-C (compact camshaft-controlled), S50MC, and L50MC (long-stroke variants) engines, these pistons feature a bore of 500mm and stroke around 2000mm.
-> The crown height varies slightly (267-272mm), with weights of 220-225kg, and includes four ring grooves: one top at 12.5mm and three lower at 9.5mm.
-> Designed per MAN project guides (e.g., S50MC-C8-TII), it bolts to the piston rod and skirt for robust assembly.
Technical Specifications
| Specification | Details |
|---|---|
| Engine Models | S50MC-C, S50MC, L50MCÂ |
| Bore | 500 mm |
| Crown Height | 267-272 mm |
| Weight | 220-225 kg |
| Material | Heat-resistant forged steel |
| Ring Grooves | 4 total; Top: 12.5 mm (CPR type), Lower 3: 9.5 mm (oblique cut) ​ |
| Screw Diameter | 12 mm ​ |
| Cooling | Oil-cooled via piston rod bore |
Applications:
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High-load marine diesel operations requiring reliable combustion efficiency.​
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Retrofit and overhaul for S50MC and L50MC two-stroke engines in shipping fleets.​
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Offshore support vessels and tankers demanding durable piston components.
30 DAYS RETURN POLICY
RETURNS ACCEPTED IN 30 DAYS. BUYER PAYS THE SHIPPING CHARGES. RESTOCKING FEES 20%.
NOTE:
IF THE ITEM COMES UNDER CUSTOMS, THE BUYER WILL BE FULLY RESPONSIBLE FOR DUTIES & OTHER CHARGES. WE AS A SELLER DO NOT ACCEPT THE RETURN AND REFUND IN THIS CASE. KINDLY CONNECT WITH US BEFORE PURCHASING AND ITEM OR IF YOU HAVE ANY OTHER QUERIES.
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