TTE, MSCED, TRD

Aluminum Extrusion Dies with a 90%+ First-Run-Rate

Our die makers have designed and built dies for more than 500,000 unique aluminum extrusion profiles. We know the failure modes and how to design around them, and more than 90% of our dies run successfully on the first trial.

90%+ First-Run Success Rate
90 % +
Dies Produced
1.9 MM+
Unique Profiles
500 K
New Designs Every Week
165 +
Die Diameter
4"- 43 "

Solid, Hollow, & semi-hollow Dies, 4"-43"

Every die we produce is designed around the profile, the alloy, the press it’s running in, and how you run it. We know the failure modes your profile is likely to cause and correct for them before the steel is cut.

Two team members inspecting finished aluminum extrusion dies laid out in front of a CNC machining center.
The face of a six-port aluminum extrusion die mandrel showing porting and web layout.
The machined face of a complex hollow aluminum extrusion die mandrel showing porting and web layout.
Aluminum extrusion die being cut on a CNC machining center with a long-reach end mill.
Aluminum extrusion die being laser scanned during inspection, with scan data on the laptop behind the bench.
Die maker finishing an aluminum extrusion die at a shop bench, backlit to check the profile opening.
A machined die mandrel and die cap for a hollow aluminum extrusion die that is used to make automotive extrusions.
A machined die mandrel and die cap for a hollow aluminum extrusion die.
A solid aluminum extrusion die with two cavities for a window frame profile used in building and construction.
Hollow aluminum extrusion die with an internally webbed structural framing profile, shown from the exit face.
A hollow aluminum extrusion die cap for a rectangular architectural tube profile.
An aluminum extrusion die that is used to make refrigeration extrusions.

Die Types We Build

Solid Dies

Hollow Dies

Bridge Dies

Spider Dies

Drill Port Dies

Seal-Off Dies

If your profile doesn’t fit any of these, send it to us anyway. Odds are we’ve seen something similar.

Why Dies Fail a First Trial

and How We Design Around it

A press waiting on die rework costs the average extruder about $2,500 an hour by our calculations, or $60,000 a day.

Most failed first trials trace back to unbalanced flow or die deflection, both of which can be corrected in the design before steel is cut. Here’s how we do that:

Balanced Flow

Unbalanced flow causes most bad first trials. It shows up as bow and twist. We tune bearing length section by section so the whole profile exits at one speed.

Deflection control

Caving or dishing under billet pressure lets the bearing lose its edge. We size the backer and bolster to your press tonnage, not just your press diameter.

One design standard

Every engineer at every location follows the same documented design standards, so your die doesn’t depend on who was at the desk that day.

Final design review 

Each design is checked to confirm it will work in your press with your specified alloy.

Repeatable geometry

Our CAD/CAM systems run networked into CNC, so a die you reorder six months from now is cut to the same geometry.

Flow simulation

When a profile is complex enough to warrant it, we simulate the die with your alloy and press operating parameters to find flow problems before the steel is cut.

That’s what’s behind our 90%+ first-run success rate.

In-House Heat Treat and Nitriding for Longer Die Life

A lower-priced die that fails early costs more per pound extruded than a higher-priced one that’s built to last. Our steel selection, heat treat, and surface finish processes, combined with our design expertise, improve extrusion speed and total pounds extruded over the life of the die.

Basket of aluminum extrusion dies glowing orange as it lifts out of a fluidized bed hardening furnace.
Aluminum extrusion dies glowing orange on the transfer table outside a conventional heat treat furnace.

Our Michigan and Alabama locations heat treat and nitride in-house. Smaller dies run on an automated fluidized bed line, and larger dies go through conventional high-heat furnaces. Both routes cool the tooling in temperature-controlled chambers and finish with tempering. We also recommend nitriding for most dies, which is also offered in-house.

We also recommend nitriding for most dies, which is also offered in-house.

On-Site Technical Support

Our 17 technical specialists average 29 years each in aluminum extrusion, most of it earned in customers’ shops. They visit more than 100 customers a year for on-site troubleshooting and training.

  • On-site troubleshooting and die repair
  • Die repair training for your die shop staff
  • Die shop management consulting
  • Process audits
  • Overall equipment efficiency (OEE) improvements
  • Best-practice development for extrusion operations
  • Pre-press install preparation and planning
  • New press start-up support to resolve tooling and extrusion issues at launch
  • Preventive maintenance support
  • Product development and design for extrusion (DFE)

A die only runs as well as the process around it, so we’d rather be standing at your press. If something in your shop isn’t performing the way it should, ask us to come look at it.

Die Correction and Repair

Members of our rework team average 21 years of die correction experience, and flow correction and die repair are their entire job. Your die goes to one of our four die correctors, who stays on it until it’s done. Every correction is documented, so the next one starts from a record instead of memory.

Die maker hand-finishing the mandrel of a multi-port hollow aluminum extrusion die.
Die maker working the profile openings of a two-cavity aluminum extrusion die held in a bench vise.
Die maker hand-finishing the port openings of a hollow aluminum extrusion die, backlit to show the flow paths.

We’ll also tell you when a die isn’t worth repairing. One that’s been shortened past its limit or choked twice isn’t coming back. Sometimes the honest answer is a new die, and you’d rather hear that before you’ve spent two weeks finding out.

Aluminum Extrusion Die FAQ

Die FAQs
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What type of die is best for my aluminum extrusion profile?

It starts with whether the profile has an enclosed void. Solid dies make profiles without one, like angles, flats, and rods. Hollow dies make tubes and other profiles with voids: a mandrel holds the shape the aluminum flows around, the metal splits around it, and it welds back together before it exits the die. From there, your alloy, wall thicknesses, and press settle the details. If you're not sure where your profile falls, send it to us.

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Why do aluminum extrusion dies fail on the first trial?

Most bad first trials come from unbalanced flow, which shows up as bow and twist in the profile. The next most common cause is deflection, where the die caves or dishes under billet pressure and the bearing loses its edge. We tune bearing length section by section and size the backer and bolster to your press tonnage to prevent both.

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When is an extrusion die not worth repairing?

When it's been shortened past its limit or choked twice. At that point a new die is usually the better spend, and we'll tell you so before you've spent two weeks finding out.

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What sizes of aluminum extrusion dies do you make?

Solid and hollow dies from 4" to 43" in diameter, for presses running billets from 3" to 30". Each one is designed around your press, alloy, and profile.

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Should every extrusion die be nitrided?

No. Nitriding hardens the surface of the die so the bearing wears slower, but it adds cost and makes the die harder to rework. That's why many extruders skip it on dies for short runs. It's your call die by die, and we nitride in-house at our Michigan and Alabama locations.

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How often should an extrusion die be renitrided?

Three to four times over a die's life is common good practice, and the first renitride matters most. The nitrided case is a thin surface layer. Once aluminum washes it off the bearing, the bearing wears fast and die life drops, so if the first renitride waits too long, there's no bearing left to protect. Any nitrided die that comes back to us for rework gets renitrided.

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What is die correction?

Die correction is reworking a die after a trial so the profile comes out in tolerance, usually by adjusting bearing lengths so metal flows evenly across the profile. Our rework team is four dedicated die correctors averaging 21+ years each. Every correction is documented, so the next one starts from a record instead of memory.

Wherever You’re Located, We’re Here to Help

17 strategic locations in North America to meet the needs of our diverse customer base.

Get to know us. Get in touch today.

We have the resources to meet any part or production challenge. Let’s talk about what that means for you.

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