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Field Note: MCE Installs a Bolt-In Retrofit in a Bliss Hammer Mill in Texas
On October 5, 2026, Midwest Custom Engineering bolted a retrofit system directly into an existing Bliss hammer mill at a customer site in Texas.
No new mill. No new footprint. The retrofit went into the housing that was already there.
What Was Installed
The MCE retrofit re-profiles the grinding chamber inside an existing Bliss housing. With the new chamber profile, the rotor works against more of the screen on every revolution, so more material is sized per pass.
That's the core idea behind the retrofit: same mill, same footprint, more of the screen doing the work. We explain the design in Bliss Hammer Mill Retrofit: Same Housing, More of the Screen Doing the Work.
Why Bolt-In Matters
For a plant, replacing a hammer mill means more than the price of the machine. It can mean new foundations, new transitions, rerouted conveying and a longer outage. A bolt-in retrofit avoids that. It installs directly into the existing Bliss hammer mill, so the plant keeps its layout and works within a planned shutdown.
What the Retrofit Is Built to Deliver
More screen in use. More of the installed screen area goes to work instead of being under-used.
A better grind. More screen contact per revolution gives a finer, more consistent product.
More capacity. More working screen area means more material through the same mill.
Results depend on the mill, the material and the operating conditions.
Is Your Bliss Mill a Candidate?
If your mill's housing, drive and frame are sound but the job has outgrown how it's configured, a retrofit is worth evaluating. Start with the questions to ask before retrofitting a Bliss hammer mill, or read Retrofit or Replace? to see how the options compare.
Frequently Asked Questions
When and where was the retrofit installed?
On October 5, 2026, at a customer site in Texas, in an existing Bliss hammer mill.
Did the plant need a new mill or foundation?
No. The retrofit bolted directly into the existing Bliss hammer mill.
What does the retrofit change?
It re-profiles the grinding chamber inside the existing housing so the rotor works against more of the screen on every revolution.
Talk to MCE About a Retrofit
Send us your Bliss model, what you're grinding and what's limiting the mill today. We'll tell you whether a bolt-in retrofit is the right fit.
MAIN LINE: +1-772-200-4060
PARTS HOTLINE: +1-772-300-9035
EMAIL: info@usemce.com
Midwest Custom Engineering is an independent manufacturer of aftermarket replacement components. We are not affiliated with, endorsed by, or sponsored by Bliss Industries, CPM, or OneCPM. All trademarks are the property of their respective owners. Model references are used solely to identify equipment compatibility.
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