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2026 Green Sand Production Seminar (GSPS)

Tuesday, September 1, 2026 to Wednesday, September 2, 2026
70 Seats Remaining

Join us September 1 & 2 in Hoffman Estates, IL at American Colloid Company for this members-only two-day seminar. We will focus on all the Green Sand basics! From Incoming material to what is meant by "clay activation". We will learn about the different parts of a muller and maintenance best practices. We will follow the sand grain through molding, pouring, shakeout, all the way to disposal or return sand. We will dive into both primary and secondary sand tests, and what they are measuring and how to best utilize the data you collect. The seminar will discuss dust collection, measuring your system volume and other critical operational green sand parameters. If you are new to the sand system, or have been running sand tests, but want to know what their significance is, this is the seminar for you. 

Anyone from your member company is invited to attend!


Production personnel or members of any area of management can benefit from learning more about the science and controls beyond on-the-floor training.


Recommended Hotel:

Marriott Chicago Northwest: 4800 Hoffman Blvd, Hoffman Estates, IL 60192

Room Block Information is coming soon! 

Agenda

September 1
8:30 AM - 9:00 AM Welcome & Overview; Life Cycle of a Sand Grain & Water High level overview of a foundry green sand system
The necessary evil, water. 
How to measure it, and why it's critical to have the right amount
Water Classification: Free Water, Water in the Clay, Cooling Water
Sand Cooling
Key Test: Moisture, Temperature, Compactability
Presented by Michelle Ring, DIS
8:50 AM - 9:30 AM Sand Raw sand: How it is processed, measured and transported
Type, Shape and Sizing
Sand Segregation & Contamination
Key Tests: pH, ADV, GFN, Screen Distribution
Presented By: Dorthoy Havlin, The Nugent Sand Company
9:45 AM - 10:05 AM Open Discussion Open Discussion Q&A on Silo Maintenance, Segregation & Transportation of Raw Materials
10:05 AM - 10:45 AM Clay A closer look at What is Bentonite Clay?
How is it processed?
Different types of clays
Clay Additives
Clay Activation - The need for water continued
Key Test: Methylene Blue
Presented by Liam Miller, American Colloid Co
10:45 AM - 11:15 AM Carbon Seacoal & Carbonaceous Materials
Causticized Lignite
Why seacoal control is especially important in Ductile Iron
Key Tests: LOI, Carbon/Sulfur, Volatiles
Presented by Kiel Krause, American Colloid Co
11:30 AM - 12:00 PM Field Trip: Run the Test Moisture, Compactability, GFN, Screens, MB Clay, Carbon/Sulfur
1:00 PM - 2:00 PM Mulling & Mixing Adding Energy! More on coating sand grains with clay
Mullers and Mixers - what is happening inside the big steel box?
Plows/Wheels, Wear & Settings (basic)
Types: Mixer, Batch Muller, Continuous Muller
Mull cycle - why you should know yours
Key Test: Total Oil & Grease
Presented By: Tom Arenholz, Simpson Technologies
2:00 PM - 2:30 PM Open Discussion Open Discussion Q&A on Muller Maintenance
2:45 PM - 3:30 PM Automated Compactability Controller How it works
Controller Equations: Key Measurements, TCC, SPC
Consideration of testing location / distance to molding
Key Tests: Sand Temperature, Conductivity, Compactability (again), Green Strength, Batch Weight
3:30 PM - 4:00 PM Workshop Workshop: Collecting Data
4:00 PM - 4:45 PM Molding Molding Types and Functions including: Flask vs. Flaskless & Horizontal vs Vertical
Squeeze pressure, venting, mold transfer and handling, Operational Considerations
Molding Specific Defects
Key Test: Mold Hardness
Presented by: Matt Meyer, Sinto America
September 2
8:15 AM - 9:00 AM Pouring & Cooling Pouring and effects on the mold
Mold Metal Interface (including mold coatings)
Mold Breakdown
Time and thermal effects on sand and ductile iron (metallurgically speaking)
Key Tests: Wet Tensile & Hot Strength
Presented By Eric Nelson with EN Consulting
9:00 AM - 9:30 AM Field Trip: Run the Test Mold Hardness, Specimen Weight, Green Strength, Permeability, AFS Clay, Wet Tensile, Hot Strength
9:45 AM - 10:45 AM Shakeout, Return Sand, Disposal & Dust Collection Dust Collection
Shakeout & Shot Blast Operations 
Attrition, Core Butt Removal & Sand Carryout
In-house Reclamation: Mechanical, Thermal, Advanced Oxidation
Disposal & Beneficial Reuse
Key Tests: AFS Clay,  Surface Finish & Dust Sampling
Presented By: Jay Morrison, Carpenter Brothers, Inc.
10:45 AM - 11:15 AM Workshop: Workshop: Mass Balance Systems with Al Jacobson & David Kesse
11:30 AM - 12:00 PM Lab Testing - Additional Tests & Best Practices Sample Collection
Gage R&R / Consistency between operators / shifts
Calibration of equipment / drift
3rd Party Testing: Frequency, Reading the Reports, Sample packaging
Key Tests: Specimen Weight & Permeability
With Kiel Krause
12:00 PM - 12:30 PM Workshop Workshop: BYOSS: Reading a Sand Plant Drawing (Bringing your own Sand System Map is optional but encouraged)
1:30 PM - 3:30 PM Hypothetical Scenarios & Applying What You've Learned See real world examples of issues that come up. Case Studies and Examples of what to do:
System Volume - Importance of keeping it full
System Turnover time  - What it effects
How to determine Testing Frequency
Increasing line speed and other effects of Job Mix Changes
Correlation vs Causation 
Core Loading and New Sand Addition (Key Test: Ammoniacal Nitrogen)
Presentations by: Al Jacobson, American Colloid Co & David Kesse, Elkem
3:30 PM - 3:45 PM Scrap Review of Common Sand Related Scrap Defects
3:45 PM - 4:30 PM Open Discussion Bring your suspected sand related defects and let's all take a look and make predictions and map out next steps of action.

Registration Information

For More Information:

Tammie Sparks
Tammie Sparks

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Cancellation Policy: No registration fees will be refunded for cancellations made less than 10 full business days prior to the meeting start date.  Registered no-shows, who have not paid in advance, will be invoiced for the event.  If you wish to cancel, contact us at admin@ductile.org or call 262-532-2440 EXT 312

Based upon the advance registrations, DIS commits to a guaranteed meal count for that event, prior to the event. DIS pays for those meals regardless of whether all registered individuals actually attend the event.

Please note that DIS has no control over the hotel cancellation policies, and all individuals are responsible for their own hotel reservations and cancellations.