As the preminent stainless steel contractor for a range of industries...


with the man power to handle the job...




Miller Mechanical Services, Inc. (MMSI) is a North American company specializing in metal fabrication and installation as well as the general maintenance of the pulp & paper industry.

We provide engineering solutions to a wide range of industries through metal work technology, fabrication and construction. We maintain “R” and “U” stamps that allow for fabrication, alteration and repair of ASME code vessels in the shop as well as the field.

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Sample Products & Services


ASME Pressure VesselsASME Pressure Vessels

API Storage VesselsAPI Storage Vessels

Curved Slot Screen DesignCurved Slot Screen Design



Heat ExchangersHeat Exchangers


Learn about our FLOW Mach 4 Waterjet with Dynamic XD technology! Faster, more accurate bevel and 3D cutting.

Latest News


Speciality Washers Cut Via Miller’s Waterjet

Miller’s waterjet is as versatile as your product and volume require.  Whether your needs are single units or thousands of units, Miller can accommodate your requirements while saving both time … Read more...

Spray Nozzles for a Biofuel Plant (Plus 1)

Pictured below are spray nozzle manifolds for a biofuel plant located in the Midwest. They have been fabricated with 304L stainless. All welds are pressure tight for 200psi water pressure.   … Read more...

A Combined Effort for a Repair with A Quick Turnaround

The top separator head from a pulp and paper mill in Maine arrived late one evening mid week. The fabricators began working on it right away.   Then the more difficult work … Read more...