ANDRITZ Warkaus Works Oy, Varkaus, Finland

ANDRITZ Warkaus Works is a boiler manufacturer located in Varkaus, Finland. The company supplies the most demanding pressure-bearing components for chemical recovery boilers and power boilers for industrial applications.

ANDRITZ Warkaus Works offers products and services for new boilers as well as rebuilds or modernizations of existing boilers in compliance with the quality and safety criteria in the destination country.

Our staff is highly skilled. Our technicians and specialists have the qualifications to weld, fabricate, coordinate, and ensure the quality of the components required for demanding boiler manufacturing work. Our people have extensive experience in boiler manufacturing. ANDRITZ Warkaus Works maintains this level of experience by selecting the most promising younger workers and mentoring them through an in-house training program to ensure they remain the Best-in-Class boiler manufacturing company in the world.

The expertise of our staff at ANDRITZ Warkaus Works is coupled with modern and highly efficient production tools to ensure that we meet customer expectations as well as the required national and international codes and standards. We deliver our products and services to global markets primarily through ANDRITZ worldwide organization. Over 90% of our products are exported: to Europe, North and South America, Asia, and Oceania.


Our manufacturing and office facilities cover an area of approximately 14,000 m². Our state-of-the-art production lines are highly automated and feature the most advanced equipment to ensure fast and high-quality deliveries.

Quality and environment

We operate with certified ISO 9001 and ISO 3834-2 quality systems and hold a Certificate for Authorization for ASME Boiler manufacturing and assembly . Our manufacturing processes for pressure-bearing components adhere to the strictest codes and standards for pressure parts. Our operations have been audited to ensure compliance with these requirements and approved through the granting of manufacturing permits that are renewed regularly.

We manufacture products for the most modern and environmentally friendly industrial boilers. Our manufacturing processes comply with general environmental legislation, and we strive to minimize the environmental impact of our own operations. Our operations comply with all relevant occupational health and safety standards.

ANDRITZ Warkaus Works Oy | Varkaus

History of ANDRITZ Warkaus Works Oy

2020 Design of new facilities begins

2019 New name ANDRITZ Warkaus Works Oy

2019 Investment in in-house paint shop

2019 Workshop starts utilizing LEAN daily management

2013 ANDRITZ Oy acquires full ownership of Warkaus Works Oy

2000 Warkaus Works Oy is established by Foster Wheeler and ANDRITZ

1995 Foster Wheeler acquires Ahlstrom's power boiler business

1940's Production of industrial and utility boilers begin

1909 Ahlström acquires engineering operations of the business

1866 Shipyard and marine boiler works are established in Varkaus

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ANDRITZ Savonlinna Works Oy

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Contact us
ANDRITZ Warkaus Works Oy
Relanderinkatu 2, P.O. Box 247
FI-78201 Varkaus
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  • ISO 9001:2015 and ISO 3834-2_2015

    Warkaus Works Oy: ISO 9001:2015, ISA 3834-2:2005

    PDF : 44 KB
  • ASME S certificate

    Certificate of Authorization ASME (American Society of Mechanical Engineers) Certificate to Warkaus Works Oy

    PDF : 717 KB
  • National Board Certificate

    The National Board Certificate for Warkaus Works Oy

    PDF : 1.4 MB
  • Manufacture License of Special Equipment PRC


    PDF : 935 KB
  • OHSAS 18001:2007

    Warkaus Works Oy: OHSAS 18001:2007

    PDF : 40 KB
  • TÜV Certificate

    TUV Austria Certificate 15HST0018

    PDF : 125 KB