• Welcome to Expert Cores of Wisconsin


We can blow cores in range from ounces up to 350 lbs. Our machines are designed to be extremely flexible in setup of existing mounting setups on vertically and horizontally parted core boxes.


Shell resin cores in a multitude of sand mixes, silica, ceramic, zircon and low-hexa sands from ounces up to 20+ pounds.


We have a no-bake loop where we can produce cores and molds of up to 1,500 pounds.


We produce cores up to 1000 pounds in a multitude of sand mixes.  We collaborate and consult with our customers to achieve the highest level of quality from their core equipment.

What We Do

Expert Cores of Wisconsin has been an integral link in our customer’s silica sand core supply chain strategy since March of 1996. Our origins grew out of a need expressed by the ferrous and non-ferrous foundry industries for a competitively priced, rapid response, silica sand core supplier in the mid-west.

How We Got Here

In 2007 Expert moved to its current location. This new central Milwaukee location provides an expanded work space of 30,000 square feet and allows an opportunity to develop a more lean work flow and ergonomic work space for our approximately 50 employees.

Our abilities embody a high degree of flexibility in order to accept our customers various core equipment. We provide core making equipment that is by design, easy to use and maintain and has quick set-up characteristics.

Quality Every Time

Our lean work flow layout and flexible core making equipment allows Expert to ship most customer core orders in 5 working days or less from the date of order.  Quick order filling and flexible core making equipment are only the beginning of the story at Expert. Core quality the first time, and every time.

ISO 9001-2015

Expert Cores of Wisconsin is an ISO 9001-2015 registered company which develops and deploys a dedicated “Core Box Process Sheet” for each core that accompanies every shop order.

Our core sand mixers are bar code driven to provide over 67 different sand mixes and each has three curing speeds to facilitate core work and set up time optimization.

We have also expanded our sand laboratory where sand mixes and sand mixer calibration is assessed on a daily basis.