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Heatmasters Oy, an international supplier of heat treatment services and equipment, founded in 1974, is teaming up with a surface treatment company. The parent company of Heatmasters, Haarniska Holding Oy, has acquired the majority of the stock of Carelia Corro, which specializes in outsourced surface treatment and surface treatment consultation services. The acquisition is already the third since Heatmasters transferred from Panostaja Oyj to Haarniska Holding’s ownership in the summer of 2021.

“Heatmasters’ and Carelia Corro’s businesses support each other,” says Kalle Reponen, a shareholder of Haarniska Holding and Chairman of the Board of Heatmasters, and continues: “Heatmasters’ customers will now receive surface treatment from Carelia Corro from the same shop, and on the other hand, Heatmasters’ extensive contacts within the European manufacturing industry opens up unique opportunities for the implementation of Carelia Corro’s growth strategy.”

“From Carelia Corro’s point of view, it is great to become part of a dynamic industrial group, which from many points of view gives new ideas for the growth and development of the company”, says Carelia Corro’s CEO Miikka Kuutilo, who will also continue as a shareholder of Carelia Corro.

The two previous acquisitions have already supported Heatmasters’ equipment business, while the Carelia Corro deal will strengthen the group’s service business. Experience and know-how, flexibility and high quality are at the center of the operations of both companies.

“Heatmasters’ professional team has always been known among its customers for its wizard-like expertise. It is a pleasure and an honor to welcome another highly skilled company to Haarniska Holding’s chivalrous family,” Haarniska Holding’s shareholder and CEO of Heatmasters Ilkka Mujunen rejoices.

Heatmasters is a company specializing in heat treatment and other industrial services and equipment, with offices in Hollola, Turku, and Varkaus, as well as in Będzin, which is located in southern Poland. Heatmasters also operates in the Baltics through its associate company Heatmasters Baltic. Dubbed the wizards of metal, Heatmasters works on projects around the world in addition to their home market, and the company’s equipment is sold in more than thirty countries.

Carelia Corro, founded in 2017, specializes in industrial surface treatment and operates on the premises of its leading customers in Jyväskylä, Lievestuore, Savonlinna, and Varkaus. Carelia Corro has long-term surface treatment expertise with strong and versatile experience in anti-corrosion painting as well as extensive networks in the field. The company’s goal is to challenge the current players in the market with an agile and cost-effective business model.

Heatmasters’ heat treatment specialists provided heat treatment services during repair works at a paper mill in Egypt. Our team was on-site for several weeks, completing preheating and post-weld heat treatment (PWHT) services during several weld repairs on a drum pulper and its support rings.

During welding repairs, the integrity of a component where a crack has been found, such as this drum pulper, is restored. Cracks can appear during in-service or already in the manufacturing process. A slot is milled in order to remove the crack, after which it is filled. The welding process can be any kind of arc, beam, or gas welding process. However, manual arc welding is the most common method for repair welding. Preheating may be required during the welding process, and the component may need to be post-weld heat treated in order to reduce residual stresses and/or restore material microstructure. In this case, local heat treatment was possible, which means that only a part of the structure was heat treated. This is in contrast to global heat treatment where the entire structure is heat treated by placing it in a furnace.

Our technicians specialize in on-site local heat treatment works at nuclear power plants, power plants, oil refineries, pulp & paper mills, and within chemical and offshore industry projects. All of Heatmasters’s heat treatment solutions adhere to our comprehensive quality management system and industry regulations.

Thanks to our locations across Europe, we are also able to provide rapid responses for our customers, which is often a requirement for critical repair works. After being contacted by a customer, our teams are able to start heat treatment works within Europe in a matter of days. Click here to read more about a related paper mill repair project requiring rapid response from Heatmasters.

Find out more about Heatmasters’ heat treatment and industrial services.

Our wizards of metal use mobile heat treatment units are designed and manufactured by Heatmasters, equipped with modern temperature control systems. This ensures rapid and accurate heat treatment, along with digital documentation for each heating process completed.

During this project, Heatmasters experts were equipped with Heatmasters HM406T_R26 mobile heat treatment units. These portable, fully-automatic units have 6 channels and a power output of 40 kW with a weight of only 170 kg.

Read more about the equipment utilized during this project.  

Heatmasters Representatives across the globe provide flexible, high-quality heat treatment solutions and heat treatment equipment with local technical support and reliable service, ensuring Heatmasters end-users’ heat treatment challenges are solved comfortably, anywhere.

Arcent has provided professional solutions to their customers’ metal welding and cutting requirements in Singapore and the SEA region since 2011. Now, as part of their vision to be a one-stop solutions provider, Arcent will additionally provide their customers with high-quality heat treatment equipment from Heatmasters.

“Since 2011, we have been the trusted and reliable supplier of high-quality cutting and welding equipment for industry-leaders in Singapore and the surrounding countries. Our cooperation with Heatmasters will provide our customers with access to reliable, modern and cost-effective heat treatment solutions.”
-Jimmy Lim, General Manager, Arcent (Singapore) Pte Ltd

Arcent in Singapore Expo during the 2017 Manufacturing Technology Asia Show

Arcent currently has many active projects with companies like Keppel FELS Group, Sembcorp Marine Group, Singapore Technologies Marine, Singapore Civil Defence Force, Pratt Whitney Group, Rolls Royce Singapore, Hiap Seng Engineering, PEC Limited, HSL Constructor & Wong Fong Engineering Works (1988).

Heatmasters will provide Arcent and their customers with support and high-quality heat treatment equipment. Since many of Arcent’s customers are utilizing manual and semi-automatic welding and cutting solutions, we will also share knowledge with Arcent regarding the integration of heat treatment equipment into their end-users’ manual and semi-automatic welding and cutting processes.

Visit www.arcentwelding.com to find out more.

During the final months of 2021, the Wizards of Metal started an interesting heat treatment project at the Górażdże Cement plant, the largest, most modern cement plant in Europe. The project involved the fast mobilization of a large team of Heatmasters heat treatment specialists, equipped with multiple heat treatment units suitable for continuous preheating of the clinker rotary kiln’s components.

Górażdże Cement Plant

The Górażdże Cement plant is located in Chorula, a village in south-western Poland. The plant is owned by Heidelberg Cement Group and began operations in 1977. During the plants’ history, there have been many development and modernization investments, which have strengthened its position at the forefront of the largest and most modern cement plants in Europe.

The plant has technological lines for firing Portland clinker, including two rotary kilns for burning clinker and four cement mills. Raw materials used for production include limestone and marl which are obtained from two nearby mines.

Scope of Project and Heat Treatment at the Cement Plant

Our team received news of urgent repairs requiring preheating. Within a few days, they were on-site, ready to start working. The clinker rotary kiln’s components were to be repaired/replaced, and the process included disassembly, welding with continuous preheating, followed by reassembly.

 
Welding works were completed by one of our partners on-site. They were also responsible for the detachment of the rotary kiln components, welding works, and attaching the new components (requiring utmost accuracy).

The tube in the below images was rotated by 45 degrees for welding, twice per day. This meant that during the preheating process, cables from our heat treatment machines, and all the flexible ceramic heaters had to be reconnected several times.
 

 
Our operators utilized Heatmasters’ flexible heating elements, which were attached to the component with pins that were welded onto the surface.

 

Equipment for Preheating

Our operators were equipped with Heatmasters semi-automatic preheating units. These thyristor-controlled transformer-type units have been designed with usability in mind: their simple and lightweight structure allows effortless mobility and efficient pre-heating at any location.
Several HM403T heat treatment units and accessories such as thermocouple wire, insulation material, and Heatmasters’ flexible ceramic heating elements were required to get this job done.

 
These units are designed for on-site preheating works, and they feature our BTC Temperature Control System. It is a simple, bulletproof system that allows the user to set the holding temperatures and control heating and cooling ramps with just a few buttons.
The HM403T has a power output of 40kW and 3 heating channels. Heatmasters also offers 6-channel and higher power-output models.
 
For any heat treatment processes which require documentation, such as post-weld heat treatment, Heatmasters suggests and utilizes our fully automatic units. These feature a digital, computer-based temperature control system. This control system allows complete process control, digital documentation, and features such as on-site/remote

Half a century of experience in on-site works has allowed us to design equipment and solutions that are innovative and designed with industry requirements such as ease-of-use and a long product lifetime in mind!
 

Heat Treatment and Industrial Services

Heatmasters looks forward to future challenges utilizing our knowledge and long-term experience in high-quality heat treatment and industrial services.
In addition to on-site pre-heating and post-weld heat treatment (PWHT), Heatmasters provides custom-tailored solutions including:
• Heat treatment of workpieces in fixed furnaces
• Heat treatment of large workpieces in portable temporary furnaces
• Refractory dry-outs
• Wide range of industrial services (NDT, surface treatment, welding, etc.)
• High-tech heat treatment equipment (furnaces, transformers, temperature control systems, etc.)
• Modernizations for all manufacturer’s heat treatment equipment

Click here to read more about the Górażdże Cement plant.

In the picture are Bo-Ole Lundqvist, CEO of Temptec (left), and Ilkka Mujunen, CEO of Heatmasters (right).

On 3.2.2022, Heatmasters has signed an agreement to acquire Temptec’s furnace- and maintenance business. With the acquisition, Heatmasters’ portfolio of furnaces and equipment will be further diversified, and we will significantly strengthen our position as a supplier and life-cycle services partner for the industrial and heat treatment furnace sector.

Temptec is a well-known supplier of high-quality electric and gas-fired industrial furnaces. Founded in 1995, the family-owned company has a long history in the furnace industry, and its’ customers are found in a wide range of industries, such as quarries, hot-dip galvanizing plants, forges, foundries, machinery, and manufacturing industry, chemical process industry, electrical engineering industry, and research and development laboratories.

Ilkka Mujunen, CEO of Heatmasters, comments:
“We are very pleased with this acquisition, which will reinforce Heatmasters’ process and product expertise in the furnace sector, whilst bringing new opportunities to cooperate with several industry-leading companies.”

The Temptec product range includes laboratory furnaces, chamber furnaces, pit furnaces, car bottom/bogie hearth furnaces, top-hat furnaces, continuous feed-through furnaces, drum furnaces, and hot-dip galvanizing equipment. All solutions are engineered to order.
In addition, we provide maintenance, measurement, and calibration services to the users of these furnaces.

“I look forward to meeting new customers so that we can continue to ensure the smooth operation of Temptec furnaces and galvanizing solutions.”
-Markku Pyykkö, Business Manager at Heatmasters

“From the beginning, Temptec has understood customer requirements for high-performance and reliable solutions, and the company aims to be a leader and pioneer in technical solutions. I am very pleased that Heatmasters’ professionals will continue to provide services for existing equipment base and also providing new industrial furnaces.”
-Bo-Ole Lundqvist, CEO at Temptec

 
In the picture above, a Temptec sintering furnace / gas-heated chamber-furnace.
Dimensions: 1,4m x 0,6m x 1,1m.
Operating temperature: 1200 °C

 
In the picture above, a Temptec fully-automatic convection furnace with continuous feed-through.
Dimensions: 0,9m x 0,4m x 2,2m.
Operating temperature: 500 °C

This is the second significant acquisition made by Heatmasters within the past six months. Heatmasters also acquired the service and maintenance business of Sarlin furnaces. Read more.

For more information, please contact:
Ilkka Mujunen
e-mail: ilkka.mujunen(@)heatmasters.net

Heatmasters is an international industrial services and equipment provider specializing in heat treatment, NDT -inspection, surface treatment, and other services for maintenance of process plants and the manufacturing industry.