Kemppi Welders Guide: Why TEC Products Made the Switch

If you’ve been a TEC Products customer for a while, you may have noticed our welding machine range now centres on Kemppi welders. We’ve moved from Fronius to a full line-up of Kemppi welding machines, covering MIG, TIG, and MMA, designed to meet the demands of professional welders and the most demanding welding tasks.

This wasn’t a quick decision. It came down to finding Kemppi welding equipment that better meets the day-to-day welding tasks of our customers, from workshop fabrication to site work and heavy industrial applications. Kemppi, a pioneering company and one of the forerunners of arc welding, offers a strong balance of performance, usability, and value, backed by proven engineering, advanced features, and a wide product family.

Who Are Kemppi?

Kemppi is a Finnish welding equipment manufacturer founded in 1949 in Lahti, Finland. Still a privately owned family company, now in its third generation, Kemppi has built a reputation in the welding industry for practical innovation, reliability, and expertise in welding technology.

They were responsible for developing the world’s first inverter-based welding power source back in 1977, a breakthrough that transformed how welding machines are built. Since then, Kemppi has continued to focus on improving how welding machines perform in real working environments, with a strong commitment to energy efficiency and user-friendly designs.

What sets Kemppi welding apart is their focus on usability as much as performance. Their machines are designed to be easy to set up, energy efficient, and consistent across different materials and applications. For professional welders, that means fewer complications, more control, and better results over time.

Kemppi MIG Welders: From Workshop to Industrial Use

Kemppi’s MIG welding range covers everything from compact workshop machines to high-output industrial systems. Whether you’re carrying out light fabrication or running production work, there’s a machine suited to the welding tasks you face.

Master M Pulse MIG Series

The Kemppi Master M Pulse MIG range is one of the newest additions to the line-up and reflects where the industry is heading, with more fabricators moving towards pulse MIG for improved control and finish.

• Advanced pulse MIG functionality for better control on thin and mixed materials
• Improved arc stability and smoother transfer, especially on stainless and aluminium
• Designed for workshop and production environments where weld quality and consistency matter

Pulse MIG allows you to achieve cleaner welds with less spatter, helping reduce post-weld clean-up without compromising weld quality. For many professional welders, it’s becoming the go-to option where both appearance and efficiency are important.

MinarcMig Evo 170 & 200

The MinarcMig Evo range is designed for portability and simplicity.

• 230V single-phase input
• Compact, lightweight design
• Ideal for maintenance, installation, and light fabrication

These machines are well suited to engineers who need something reliable and easy to move between jobs, without sacrificing weld quality.

Kempact RA Series

The Kempact RA range is aimed at workshop environments where consistency, efficiency, and reliability matter.

• Synergic MIG control for easier setup
• Suitable for regular fabrication work
• Models available in different amperage outputs

If you’re working on repeat jobs or general fabrication, this range helps improve setup speed and overall workflow, with accessories and torches designed to enhance productivity.

FastMig X5 Series

For industrial applications, the FastMig X5 is built for high-output performance.

• Multi-process capability
• 400A to 500A output range
• Designed for heavy fabrication and production

This is the type of system used where uptime, consistency, and productivity are critical across various industries.

Kemppi TIG Welders: Precision Where It Matters

Kemppi TIG welders are designed for applications where control, finish, and accuracy are key, particularly when working with stainless steel and aluminium.

MasterTig 235 AC/DC

The MasterTig 235 is a versatile AC/DC TIG machine suited to workshop and production use.

• AC/DC capability for aluminium and steel
• Available in air-cooled and water-cooled setups
• Stable arc performance and consistent control

This is a strong option for fabrication environments where material types vary, and weld quality is critical.

MinarcT 223 AC/DC

The MinarcT 223 AC/DC is a portable TIG machine designed for site work.

• AC/DC capability for aluminium and steel
• Available in air-cooled and water-cooled setups
• Stable arc performance and consistent control

This machine combines reliability and advanced features to meet the demands of professional welders working in the field.

Why We Chose Kemppi

Fronius and Kemppi are both well-respected European manufacturers (Fronius is Austrian, Kemppi is Finnish) and both produce high-quality welding equipment. The decision to move to Kemppi wasn’t about replacing one with something “better,” it was about selecting a range that better fits how our customers work and their welding industry needs.

Kemppi stood out for a few key reasons:

• European-built equipment with consistent manufacturing quality
• 3-year warranty across the range, giving added confidence for long-term use
• Strong value across the range, from entry-level to industrial systems
• User-friendly machines that reduce setup time and improve efficiency
• Energy-efficient designs that support long-term running costs
• A wide product family covering MIG, TIG and multi-process systems
• Reliable UK support and availability

For many customers, the combination of European manufacturing and warranty support is a key factor, particularly when compared to lower-cost imported alternatives.

Which Kemppi Welder Is Right for You?

Choosing the right machine depends on what you’re welding, where you’re working and how often you’re using it. Here’s a quick guide to help narrow things down:

If you need	We recommend	Price from
A portable MIG for light work	MinarcMig Evo 170	~£270 ex VAT
A workshop MIG with easy setup	Kempact RA 251A	~£2,265 ex VAT
An industrial multi-process system	FastMig X5 400	~£6,413 ex VAT
An AC/DC TIG for aluminium	MasterTig 235	~£4,369 ex VAT
A portable TIG for site work	MinarcT 223	~£3,038 ex VAT

If you’re unsure, it’s always worth matching the machine to your most common type of work rather than trying to cover everything with one setup.

Shop the Full Kemppi Range

You can browse the full Kemppi range through TEC Products, including MIG, TIG and multi-process machines.

If you’d rather talk it through, our team is always available to help you choose the right setup based on your work, materials and budget.

Frequently Asked Questions

Are Kemppi welders good for beginners? 

Kemppi machines are built for professional use, but models like the MinarcMig Evo and Kempact RA are approachable thanks to their simple setup and synergic MIG control. If you’re unsure where to start, our team can point you in the right direction.

What’s the difference between MIG, TIG and MMA welding? 

MIG is fast and versatile, making it the go-to for general fabrication. TIG offers greater precision and a cleaner finish, ideal for stainless steel and aluminium. MMA (stick welding) is the most portable and handles outdoor or site conditions well. Kemppi covers all three.

Why did TEC Products switch from Fronius to Kemppi? 

Both are well-regarded European manufacturers. Our move to Kemppi came down to finding a range that better fits how our customers work, offering strong value, energy efficiency, ease of use, and reliable UK support across the full product family.

Can I get support and spare parts for Kemppi machines in the UK? 

Yes. Kemppi has a well-established UK presence with good parts availability and technical support. If you need help sourcing accessories or consumables, our team is on hand to assist.