Reliable, sustainable and high-quality contract manufacturing

JMC Engine is one of the leading contract manufacturers in precision machining and component production in Europe. Our specialties are cast iron components that require accuracy and extremely high level of quality, such as cylinder heads, valve guide mechanisms and fuel injection systems.

Premier expertise and seamless collaboration

Straightforward cooperation is the hallmark of the JMC Engine’s work ethic. We demonstrate our expertise in every detail and with each series delivered. Besides having the most modern machinery in the industry, precision machining of cast iron demands comprehensive experience from design to execution.

With our specialized expertise, we have earned appreciation and established ourselves as a reliable quality partner among international partners. From a single source, we deliver complete solutions which are currently used by the world’s leading engine manufacturers.

  • Expert serial production for global operators
  • Global customer base and supplier network
  • Exceptional resource of experts and top-level machinery

Significant savings in time and money

Partnering with us translates into significant time and money savings. Rather than juggling multiple suppliers, you will receive products like assembled cylinder heads or valve guide blocks, from a singular location. Our commitment to personalized service is evident from the beginning—you’ll immediately notice we’re on the same wavelength. We understand the demands of engine and equipment manufacturing and know how to achieve high-quality results cost-effectively. Our professional pride is your strength in managing your quality component sourcing.

  • Flexible and reliable expert always at your service
  • Continuous improvement is in our culture
  • Subcontracting chain management on behalf of the customer
  • High-class quality and delivery accuracy


Our service covers all units through machining, deburring, pressure testing and assembly – from supplier network to personnel and proudly finished end products.

We promise

hiqh-quality products  •  delivery accuracy  •  a competitive cost level

We serve our customers by effective management of the entire production chain, which includes the subcontractor network, acquisition of materials and services, production and manufacturing methods, and assembly services. Our emphasis on continuous development guarantees the effectiveness of the entire process.

A transparent service is the key to a trust-based partnership.


We are your one-stop shop – from sourcing to production and assembly.


You specify the machining and assembly settings required. We get it done, at the right time and with the right quality.

Professional pride

We want to be proud of our work and improve ourselves constantly. We believe you are the same.


An open partnership ensures better reliability! Our long-term partners appreciate our openness. Our hard work ensures our partners can trust us and focus on developing their own business operations.

When our partner succeeds, JMC Engine succeeds!

Our business idea is to help our partners prosper. The goal of cooperation is to improve our partners’ competitive position in the international markets.

Long term customer relationships for more than over 20 years:   

Wärtsilä, which supplies marine engines, machinery and equipment, as well as power plants based on oil, gas and dual-fuel engines.     

Woodward L’Orange is one of the leading manufacturers of injection systems for large engines worldwide.   

Innio Jenbacher provides hydrogen-ready power generation to businesses and industries striving for a greener future.  


Maintaining a modern and efficient machine equipment is our top priority. We improve our machine and tool expertise systematically so that we can always offer the most optimal solution for our customers.

Our production technology suppor effective and high-quality serial production. In the core of technology there are several horizontal machining centres, connected to automatic multipallet handling systems and large toolmagazines. In turning we have several amount of effective lathes with robot handling. In quality control there is 3D coordinate measurement machines and huge amount of other measurement equipments.

Machining Centres

MCM iTank 1450 5-Axis Centre (2 units)
x = 1450 mm
y = 1200 mm
z = 1500 mm
10 pallets 800 * 630

MCM Clock 1300 MP10 
x = 1300 mm
y = 1300 mm
z = 1300 mm
10 pallets 800 * 630

MCM Clock 1200 MP10 (3 units)
x = 1200 mm
y = 850 mm
z = 850 mm
10 pallets 630 * 630 mm

DN Solutions NHM6300
x = 1050 mm
y = 850 mm
z = 1000 mm
Pallet size 630 * 630 mm

Matsuura MC-900HG
x = 920 mm
y = 920 mm
z = 910 mm
10 pallets 630 * 630 mm

Doosan ACE-HM1000MC
x = 2100 mm
y = 1250 mm
z = 1250 mm
Pallet size 1250 * 1000

Daewoo ACE-HM800MC (2 units)
x = 1250 mm
y = 1000 mm
z = 1000 mm
Pallet size 800 * 800

Quality Control

Zeiss Accura 3D coordinate measurement machine (2 units)
x = 1200 mm
y = 2400 mm
z = 1000 mm

Zeiss Eclipse 3D coordinate measurement machine
x = 700 mm
y = 1000 mm
z = 580 mm


Doosan TT2500 (3 units)
turning diameter 390 mm
turning lenght 300
bar diameter 76 mm

Mori Seiki NT 4250 / 1500SZ
x = 750 m
x = 195 mm (revolver 2)
y = ±210 mm
z = 1550+ 100 mm
z = 1525 mm (revolver 2)
b = ± 120
turning diameter 660 mm
turning length 1542 mm
bar diameter 80 mm

Daewoo Puma 300 MSC 
turning diameter 355 mm
turning lenght 565 mm
bar diameter 102 mm

Daewoo Puma TX-200-Y 
turning diameter 300 mm
turning lenght 200 mm
bar diameter 65 mm

Daewoo Puma 8 HC 
turning diameter 350 mm
turning lenght 400 mm
bar diameter 52 mm

Daewoo Puma 12L-B (2 units) 
turning diameter 480 mm
turning lenght 1020 mm
bar diameter 90 mm

Takisawa TMM-200 Module-1 
turning diameter 240 mm
turning lenght 660 mm
bar diameter


By using of robots we ensure the most effective handling of products and processes in production.

In machining:

Fanuc R-2000iC /125 L
Motoman UP600N -robot (2009)
Motoman ES165N -100

In finishing of products:

Fanuc R-2000iC / 165 F


Quality is paramount to us and it’s in the core of everything we do. The quality of our operation is proven every day in products that fulfill even the most demanding quality standards.

Sustainability Policy

The JMC Engine Oy’s sustainability policy’s purpose is to define our goals regarding sustainable business operation. It shows our commitment to reduce our impact on the surrounding environment and improve our role in the society. It serves as a guide for our future decisions. The sustainability policy consists of three different policies, which are Environmental Policy, Labor and Human Rights Policy and Business Ethics Policy.

Environmental Policy

JMC Engine Oy’s operations are guided by the quality and environmental management system which is based on ISO9001- and 14001-standards. The environmental impacts of our operation concern the use of energy and the waste created by production. We are committed to operating with responsible manner in all environmental aspects. We monitor and control the energy usage and the recycling of various types of waste.

Northern quality as a foundation for international success

JMC Engine, a Finnish contract manufacturer for machine and equipment builders, was established in 1997. We are based in Ruukki, Finland. We’re proud to share a visual representation of our journey – a map highlighting all the locations across Europe where we are active daily. Besides Europe, we are regularly delivering to our customers in China.

We produce sub-assemblies and serve as a serial production contract partner for major international operators. Our core is still in the machining of cast iron components. 

From the perspective of European metropolises, our location may seem remote, but we have turned this into a motivation for quality. The only way to succeed is to specialize, serve and do the best work in Europe in our field. 

JMC map

Contact us

JMC Engine Oy
Ahlströmintie 1 M
Tel. +358 (0)8 2708 550


Sales Director
Mr Mikko Lassila

Mobile +358 44 778 75 59
Emails for the personnel: