"> Mycom / Mayekawa (Japan) N Series
⚓ Working on this equipment?
Ask the AI troubleshooter, log your hours on board and turn them into invoice-ready service reports — for this exact model.
Start free — 14 days →
No credit card required
🔧 5 verified suppliers & service companies for Mycom / Mayekawa (Japan) in the Maritime Network Find suppliers →
Mycom / Mayekawa (Japan)

N Series

Mayekawa Manufacturing (trade name Mycom) is a Japanese refrigeration compressor manufacturer from Tokyo, founded 1924. The N series is Mycom's standard reciprocating compressor for marine refrigeration systems, especially on Japanese fish processing ships and tuna fishing vessels. Mycom is also a pioneer in CO2 refrigeration systems (transcritical/subcritical) and is one of the first manufacturers to offer marine-approved CO2 compressors.

30-500 kW cooling
Capacity
R717 (Ammonia) / R22 / R404A / CO2
Medium

Components & Design

Component data being added…

Technical Data

type Open-Drive Reciprocating Compressor
variant count approx 5
period start year 1980
drive type Electric (external motor)
construction Cast iron, open-drive, W-arrangement

🤖 Ask about this model

One free question — answered like a marine engineer. No account needed.

Common failures & inspection points

Valve plate cracking from liquid slugging
Shaft seal leakage on NH3 systems
Oil pressure differential switch malfunction
Capacity unloader solenoid valve failure

Service & Maintenance

Valve overhaul every 8,000-12,000 hrs. Shaft seal every 4,000-6,000 hrs (NH3). Oil analysis every 2,000 hrs. Complete overhaul 30,000-40,000 hrs.

Suppliers & Spare Parts

Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.

📄 Request sourcing links & documents
🛠 Manage this equipment in your fleet

Cases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.

Start free trial →
🔎 Suppliers & service for this equipment

Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.

Maritime Network →

Replacement Parts

Mycom/Mayekawa (Tokyo). Service in Japan, Korea, Singapore, Europe (Belgium). Lead time: 2-4 weeks Asia, 4-6 weeks elsewhere.
Equipment Model #37716 · ✓ still in production