About us
1990
welding since
ISO 9001
certified, with Design
131
lab-tested weld schedules
Denver
designed and built in Colorado
858 and 726 fixture on the benchAt a glance
Since 1990, and the data to show for it
- 1
1990
Founded
Weld technology sales, service and education begin.
- 2
2015
ISO 9001 approval
Original approval on August 11, 2015, with Design.
- 3
2024
Certificate renewed
Current ISO 9001:2015 certificate issued July 23, 2024.
- 4
Today
Denver, Colorado
Designing, building and testing percussion welders, with lab data we publish.
- lab-tested weld schedules
- 131
- materials
- 33
- material pairs
- 68
How a project works
From your weld challenge to production
You know early whether percussion welding fits. Many of our customers are under NDA, so we keep their names private.
- 01
Evaluate the application
Based on your materials and weld specifications, we assess whether percussion welding is a good fit.
- 02
Process evaluation
We test whether the weld specifications can be achieved. Free applications tests of your materials are available.
- 03
Process development
With positive results, we develop the process. It is usually done in your environment, or at MTI MicroWelding if you prefer.
- 04
Inspection and production
Welds are inspected visually, by mechanical testing, or with the Percussion Weld Monitor. We provide operator training and weld parameter documentation.
858 and 726 fixture on the benchChapter 01 / 08
Who we are
Percussion Welder, part of MTI MicroWelding, has been providing advanced weld technology sales, service and education since 1990 from Denver, Colorado. We design and manufacture percussion welding equipment: the Model 858 Percussion Welder, the Model 726 Bench Fixture, the Model 808 Actuator and the Percussion Weld Monitor.
We support the joining of similar and dissimilar metals for industries ranging from medical device to automotive, electronics, aerospace and defense, and we do it with no solder, filler or flux.
Chapter 02 / 08
What we do
- Equipment: we design and build the 858 Percussion Welder, the 726 Bench Fixture, the actuator and the Percussion Weld Monitor.
- Applications work: free applications tests of your materials, process evaluation and process development, usually in your environment or at our lab if you prefer. See our services.
- Education and service: operator training, weld parameter documentation and service for the equipment we build.
The 726 bench fixtureWant to see it on your parts?
Send samples and we'll run test welds before you commit.
Gallery
Inside the shop
Where the 858 and 726 are built, and the welds they make.
Chapter 03 / 08
Quality you can verify
MTI MicroWelding is certified to ISO 9001:2015 with Design by Smithers Quality Assessments (certificate 15.223.1). The certified scope is the design, manufacturing, sales, distribution and servicing of percussion welding and percussion welding equipment.
The certificate and our quality policy are public: see the quality documents.


Chapter 04 / 08
Built and tested in our own lab
We build our equipment in Denver and test it ourselves. Every weld schedule we publish comes from our own lab experiments: 131 schedules across 33 materials and 68 material pairs. They are starting points, not guarantees, and every application is validated on your own parts.
You can explore the data yourself in the Parameter Finder, the weld schedules table and the material compatibility checker.
858 power supply assemblies
Building and testing an 858Chapter 05 / 08
How we work with customers
Your challenge becomes ours. Every project starts with your weld challenge and moves in stages, so you know early whether percussion welding fits: we evaluate the application, run a process evaluation, develop the process with you and support inspection and production.
Many of our customers are under non-disclosure agreements, so you will not see customer names here. We are happy to talk through your own requirements, and we can run live, in-person tests at our lab in Denver.
Loading a wire into the fixtureWant to see it on your parts?
Send samples and we'll run test welds before you commit.
Chapter 06 / 08
Straight answers
We will tell you honestly whether percussion welding is the right solution for your joint, or whether it is not.
- We publish our lab data, and we say plainly that it is a starting point, not a guarantee.
- We recommend changing one setting at a time and validating joint strength on your own parts before production.
- If your pair is not in our data, we say so and offer a test instead of guessing.
Chapter 07 / 08
Meet Collin
Collin Eidsness, Owner and Director, oversees the design, manufacture, sales and service of our percussion welding equipment.
Reach the team at 303-536-7838 or sales@percussionwelder.com.
Chapter 08 / 08
Put Percussion Welder to the test
The Percussion Welder uses a rapid, accurate weld process for joining small metal parts that can be difficult to join. It joins similar and dissimilar metals in milliseconds, with minimal heat effect on the metals and no solder, filler or flux.
Where to next
Micro Welding Services
Micro welding services from MTI MicroWelding: dissimilar metals joining, free applications tests, process development, prototype and R&D welding and training. Start with your weld challenge.
Open →Quality Documents
MTI MicroWelding is ISO 9001:2015 certified with Design through Smithers. Read our quality policy, the certified scope, and how to ask about your requirements.
Open →Why It’s Different
Percussion welding joins dissimilar metals in milliseconds with no filler, solder or flux and a minimal heat-affected zone. See what is different, and test it.
Open →858 Percussion Welder
The Model 858 is a capacitor discharge micro welder for thermocouple wire, fine wire and dissimilar metals. No filler, minimal HAZ. Call 303-536-7838.
Open →FAQ
Who is Percussion Welder?
Percussion Welder, part of MTI MicroWelding, has provided advanced weld technology sales, service and education since 1990. We design and manufacture percussion welding equipment and support the joining of similar and dissimilar metals.
Where are you located?
7100 N Broadway, Building 2, Suite RS, Denver, Colorado 80221. Call 303-536-7838 or email sales@percussionwelder.com. We can run live, in-person tests at our lab.
Are you certified?
Yes. MTI MicroWelding is certified to ISO 9001:2015 with Design by Smithers Quality Assessments (certificate 15.223.1). The scope is the design, manufacturing, sales, distribution and servicing of percussion welding and percussion welding equipment.
Who runs the company?
Collin Eidsness is the owner and director, overseeing the design, manufacture, sales and service of our percussion welding equipment.
Can you name your customers?
Many of the companies we work with are under non-disclosure agreements, so we do not publish customer names. We work with medical device, automotive, electronics, aerospace and defense customers. Ask us about your requirements.
Can you test my materials?
Yes. Free applications tests of your materials are available, and we can run live, in-person tests at our lab in Denver.
Still have a question? Tell us your weld challenge and an engineer will reply.
Start here
Bring a small-part joining problem and see it welded. Free applications tests of your materials are available.
Prefer to talk? Book a demo or call 303-536-7838

