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Maynard Steel Casting Company

OUR HISTORY

Founded in 1907 by Charles Maynard, the company began as Maynard Electric Steel Casting Company. In 1913, it was acquired by Sylvester Wabiszewski and renamed Maynard Steel Casting Company. More than a century later, Maynard still operates from its original location on Milwaukee’s south side.

Today, Maynard is recognized as a global leader in manufacturing highly engineered, low-carbon alloy steel castings, with finished weights ranging from 1,000 to 35,000 pounds.

For nearly 125 years, we’ve built strong, lasting partnerships with our customers and employees by listening closely, working collaboratively, and continuously innovating. This spirit of teamwork and commitment drives our shared pursuit of excellence and long-term success.
From pattern design to metallurgy, melting through finishing, we bring deep expertise, precision, and craftsmanship to every casting. Our experienced team isn’t just a workforce; they’re partners in engineering, manufacturing, quality assurance, and procurement who ensure reliable, high-quality results at every stage.
FOUNDATION
1907
Maynard Steel Founded
Founded by Charles Maynard. Original location at 716 Reed Street, Milwaukee.
FOUNDATION
1913
Ownership Change
Sylvester Wabiszewski purchases Maynard Electric Steel Casting Company, establishing Maynard Steel Casting Company.
FOUNDATION
1918
Maynard Steel Founded
Maynard builds new facility at present location on South 27th Street - a 120' x 300' building, 36,000 ft².
THE EARLY YEARS
1920-1929
Major Growth Period
Maynard steel casting shipments grow to exceed 10,000 tons per annum.

Expansions Added:

  • 200' extension of the plant, new cleaning room, and pattern storage facility
  • Cranes, boilers, ovens, molding machines, pattern shop
  • Delivery truck, sandblast machines, annealing furnaces
  • 100KW generator and tumble blast machines
The early years
1929-1932
The Great Depression
Sales decreased nearly 90%, employment dropped from 400 to less than 90.
THE early years
1936-1939
Industry Recovery
Casting industry experiences shaky recovery, failed unionization attempt by Steel Workers of America, substantial plant renovation.
THE greatest era
1941-1945
World War II Production
Steel casting industry in full recovery, stretching US foundry capacities.

Wartime Achievements:

  • Employment exceeds 600, production exceeds 16,000 tons per annum
  • Awarded Army-Navy "E" flag for excellence in production
  • Added cranes, magnets, hoists, wheel abrators, 2000KVA transformers
  • Mixers, rollover, shakeout, sand-conditioning, roto-clone systems, bumper molding machines
Post-war years
1946-1955
Post-War Expansion
Maynard exceeds 19,000 tons per annum.

Major Additions:

  • 50' x 121' warehouse added
  • Critical east end of facility expanded 60'
  • 6-ton furnace, core machine, arcade molding machine
  • 600 AMP welders, heat treating furnaces, gas heating furnace
  • Push-off molding machines, sand mullers, presses, 750 KVA transformer, core ovens
post-war years
1948
Papal Recognition
Sylvester Wabiszewski is made a Knight of the Order of St. Gregory by Pope Pius XII.
the next generations
1962
Leadership Transition
Sylvester Wabiszewski dies September 13, 1962, at age 62.
The Next Generations
1960-1978
Automation Revolution
Advanced Blomatic automated mold making system installed with continuous molding and pouring lines.

Major Developments:

  • Employment exceeds 725
  • Water recycling system saves 220K gallons daily (55M+ gallons annually)
  • New building and fully outfitted metallurgical lab
  • 25,000 ft² increase in support services area
The next generations
1980s
High-Tech Expansion
70' x 500' High Bay Foundry and Cleaning rooms added with 2 50t and 1 30t crane, 2 bottom car heat treat ovens, 35,000 gallon quench tank, 25 ton arc-melt furnace, roto-blast room with 12' cart, and state-of-the-art 3D MAGMA solidification tool.
the next generations
1984
Global Mining Partnership
Global mining industry leader awards Maynard as their primary supplier after shuttering their captive foundry.
the next generations
1988
Sand Reclaim System
Vibra-mill, mechanical sand reclaim/conditioning system added.
The next generations
1992
Defense Contract
Major US Defense contractor awards Maynard long-term business for steel armor castings.
the next century
2008
Fourth Generation Leadership
Mike Wabiszewski, founding family's 4th generation, promoted to President. Core areas updated with 2 TOM 350XL sand mixers with SMART gates and pumps.
The next century
2009
Equipment Upgrade
Large sand mixer updated with TOM 1200 with SMART gates and pumps.
the next century
2012
Environmental Upgrades
Updated and upgraded foundry dust collection systems added over arc-furnaces.
the next century
2015
Blast Room Upgrade
New roto-blast room with 12' car (5 shot blast wheels top/sides) installed
The next century
2020
Facility Milestone
Maynard Steel Casting Company, still at South 27th Street, occupies 420,000 ft².
The next century
2021
Mixer System Upgrade
Large sand mixers and conveyor systems updated with 270° TOM 1800 articulating mixer with SMART gates and pumps.
The next century
2022
High-Tech Expansion
Deborah Sandahl/Wabiszewski named President and CEO, establishing Maynard as a Women-Owned Small Business (US SBA WOSB).
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