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Precision Wire Forming of a Stainless Steel Square Center Power Spring for the Food Preparation Industry

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This part displays our wide range of manufacturing flexibility through the forming of spring tempered, stainless flat stock material into this specialty power spring. We utilize custom tooling to control the flat material through a cam-less CNC open-faced wire forming machine programmed to bend and shape the part with tailored forming tools built by our experienced toolmakers. A strong setup, controlled working environment and the use of positional probes helps us ensure dimensional accuracy and hold tight tolerance requirements throughout the entirety of our production run.

A manufacturer of food preparation equipment contracted us to manufacture this square-centered power spring for one of their product lines. After helping our customer fine-tune their design through the prototyping stage, Sterling Spring manufactures over 140,000 of these power springs annually, delivered clean with no sharp edges, to this customer in Chicago. To learn more about this project, see the table below or contact us directly.

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Precision Wire Forming of a Stainless Steel Square Center Power Spring for the Food Preparation Industry

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Stainless Steel Square Center Power Spring- Project Details

Product Description This Spiral Spring is used on industrial food preparation equipment.
Precision Wire Forming Capabilities Applied/Processes Flat Stock Wire Forming
Stress Relief
Equipment Used to Manufacture Part
CNC Machinery (2mm)
Open Faced Camless Machine
Position Probe
Custom Forming Tools
Custom Rollers and Quill
Fully Calibrated Oven
Overall Part Dimensions
Square Length: 0.250"
Square Width: 0.230"
Outside Diameter: 0.720"
Wire Thickness: 0.020"
Wire Width: 0.187"
Tightest Tolerances ± 0.015"
Angular: ± 1°
Material Used
301 Stainless Steel Full Hard
.020" x .187" Spring Tempered, Slit Edged, Flat Stock
ASTM A666
AMS 5519N
Material Finish Clean and No Sharp Edges
In process testing/inspection performed Critical Lengths and Diameters
Position in relation to the center of the spring using a positional probe set to automatically turn off the machine if the probed position is not attained.
Industry for Use Food Preparation Industry
Volume 140,000/year
Delivery/Turnaround Time 3-4 weeks/release
Delivery Location Illinois
Standards Met Customer supplied print, 2D CAD Drawing
Product Name Square Center Spiral Spring

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