OceanSphereFree accountLog inDEENPL
OceanSphereENGINES
Library› Engine Room› Auxiliary Engines› Auxiliary Engine (Generator Set)› Wärtsilä 12VW34DF-GS-50Hz

12VW34DF-GS-50Hz

Auxiliary Engine (Generator Set) · Auxiliary Engines

Class-certified type (DNV register) · technical data sheet not yet verified
4,560 kWPower
12Cylinders
340 mmBore
400 mmStroke
10 454 x 3 350 x 4 374Dimensions

The Wärtsilä 12VW34DF-GS-50Hz operates on a four-stroke, turbocharged, intercooled, non-reversible design, featuring a dual-fuel capability for both LNG and HFO. This 12-cylinder engine boasts a bore of 340 mm and a stroke of 400 mm, delivering a power output of 4560 kW at 750 rpm. It is part of the W34DF-GS family and is designed for a 50 Hz frequency. The engine's 4-stroke cycle, combined with turbocharging and intercooling, ensures efficient combustion and high power output. The 12VW34DF-GS-50Hz is designed for use in various marine applications, providing reliable and efficient power generation. --- Please let me know if you'd like me to write product descriptions for other Wärtsilä models.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Power per cylinder (main engine 34DF)500 kW @ 750 rpm
Power per cylinder (auxiliary 34DF)520 kW @ 720-750 rpm
Mean effective pressure (main)20.0-19.8 bar
Piston speed9.6-10.0 m/s
Compression ratio (16V/20V)12.6:1
Engine type4-stroke, turbocharged intercooled non-reversible
Swept volume per cylinder36.3 dm³
34DF Max output (16V main)8000 kW
34DF/34SG Max output (20V genset)9800 kW
34SG designSpark-ignited, lean-burn, pre-chamber
20V34SG dimensionsL:12.7m × W:3.3m × H:4.65m
20V34SG weight131,500 kg
Dimensions10 454 x 3 350 x 4 374 mm🔖
Power (kW)4560
Speed (rpm)750
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationV
Genset Output (kW)4332
Genset Output (kVA)5415
Frequency (Hz)50
📄
Download datasheet (PDF) (125 KB)
Need this part?

Request a quote for this model.

Free of charge — send us your request for Wärtsilä equipment. Our team checks it and replies by e-mail.

Makers and authorised dealers rarely quote marine equipment without the vessel. With these details we can check availability and prices faster; without them we may have to ask first, which can cost a few days. If you cannot share the vessel, a photo of the equipment’s rating plate does the same job — attach it below or send it as a reply to our confirmation e-mail.

Your contact details are not published. No account required.
Related models

Also in Auxiliary Engine (Generator Set).

Other models of the same equipment type, Wärtsilä first.

By manufacturer CaterpillarMAN Energy SolutionsWärtsiläScaniaVolvo PentaMaK (Caterpillar)CumminsDeereHanshinPerkinsDaihatsuBaudouinMTUYanmarWeichaiAll manufacturersSpare parts by equipmentNew here? Create a free account Can't read the plate? Try the nameplate scanner All Wärtsilä models More like 12VW34DF-GS-50Hz
Would you like to know more?

A person reads every request and replies by e-mail.

Tell us what you need for this Wärtsilä 12VW34DF-GS-50Hz — a part, a service call, a second opinion. Are you Wärtsilä? Claim this brand page.

Service engineer? Write the day report for this 12VW34DF-GS-50Hz in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →

Frequently asked

Three things people ask first.

Is this model's data free?

Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.

Can you find a part for this exact model?

Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.

The specifications look wrong — what now?

Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.