Looking for a reliable HPDC tool doctor? You've come to the right place.
We don't just repair – we bring aluminum die casting tools back to life,
from small molds to giga casting solutions.
With decades of industry experience, precision craftsmanship and fast response times, we support foundries and toolmakers in their work.
Whether it's reviving a tool that has seen better days, maintenance or assembly, precision is not an option for us, but a basic requirement.
The cornerstones of our services
Durability
We know exactly how much a die-casting tool is worth and how long it should keep performing. That's why we maintain every tool as if it were our own investment.
A well-maintained tool never loses its value. It simply proves it was worth taking care of.
Fast response time
When production stops, every minute counts.That's when we move the fastest and work the smartest.
Best performance under high pressure.
Reliability
We don't wait for tools to break. We act before downtime begins. We go where we're needed, ensuring your tool is back in operation before reliability even becomes a question.
For us, trust isn't a slogan, it's the foundation of the next production run.
Experience
This trade isn't something we learned, it's what we were born into. As a second-generation team with over 30 years of experience, we solve even the most complex issues efficiently and precisely.
You don't need explanations, you need results and we know that.
Guarantee
We stand behind every job we complete.If any issue arises, we return with priority recall to inspect and correct our own intervention.
At no extra cost.
At 4SI Special Tool Service, we don't believe in slogans — we believe in work well done.
The world of high-pressure die-casting tools leaves no room for uncertainty.
A single misalignment, a faulty cooling line or a worn insert can stop production for hours or compromise the quality of an entire batch. No manufacturer can afford that.
A well-maintained tool isn't just reliable — it's profitable.
Its true value is proven when it performs flawlessly in serial production.
Our goal is simple: to restore every tool to full operational condition
and maintain it at a level that guarantees the next production run starts without hesitation.
Our work begins where others give up.
