A Division ofSeilkop Industries, Inc.Seilkop Industries, Inc.
HITECH Shapes & Designs a Division of Seilkop Industries, Inc.

Custom Engineering & Development of Emergency Resourcing of Engine Cooling Components

A tier 1 automotive manufacturing customer contracted Hitech to design and develop a Sinto/DISA compatible 20” x 24” shell mold pattern after their original plastic component failed when exposed to heat. The thermostat housing components as shown below were machined from 4140 steel employing our high speed vertical milling equipment, maintaining the tightest tolerances of ±0.0005”. We were able to achieve the exacting machining tolerances of all tooling for fit and function, without flash. The completed pattern featured multiple core boxes and assembly fixtures, exhibiting a .2 micron machined to 1micron hand polished finish. No secondary finishing methods were required due to the fine surface left by our high speed milling technology.

The tooling was subjected to full dimensional and functionality testing to ensure quality and integrity. The produced thermostat housing component measures 4” x 6” x 4” after casting, as specified by the customer supplied 2D CAD drawings. Turnaround time for this project was 3 weeks, shipped to the customer in Cincinnati, OH. For more details about this housing component pattern design and fabrication, or the full menu of services and capabilities available please see the table below or contact us directly.

Stripper Type Core Box CAD Drawing
Stripper Type Core Box CAD Drawing

(Click image to enlarge)

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Highlights of this Project

Product Description
Sinto/DISA 20 x 24” pattern with multiple core boxes and assembly fixtures.
Capabilities Applied/Processes
No secondary finish required because high speed milling technology utilized.
Equipment Used to Manufacture Part
Vertical milling machine
Overall Part Dimensions
4” x 6” x 4”
Tightest Tolerances
Material Used
4140 Steel
Material Finish
3.2micron machined to 1 micron hand polish
In Process Testing/Inspection Performed
Dimensional Testing, Functionality Testing
Industry for Use
Aluminum Green sand foundry
N/A Job Shop 1 time tooling
Delivery/Turnaround Time
3 weeks
Delivery Location
Cincinnati, OH
Standards Met
Customer Specifications, 2D/3D CAD Drawing
Product Name
Shell Mold Pattern

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