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Precision Wire Forming & CNC Coiling of Generator Spring for the Camping Industry

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The compression spring highlighted in this portfolio is a product of our precision wire forming and coiling capabilities. This part features a very tight spring index with variable pitch which makes the diameter dimensions difficult to hold throughout the length of this 8.75" spring.

The spring is made out of 0.058" music wire and is coiled on one of our CNC coilers. Tight print tolerances and the inside diameter/outside diameter specifications on the print demand careful quality control and attention. As such, Sterling Spring's skilled tool makers fabricated custom gauges to check dimensions for the initial and in-process inspections. The finished springs were then phosphate coated by one of our preferred suppliers and delivered to the customer in Wichita, Kansas. We provide 11,000 of this precision spring to this customer annually. For more information, see the table below or contact us directly.

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Precision Wire Forming & CNC Coiling of Generator Spring for the Camping Industry

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Wire Formed Generator Spring - Project Details

Product Description This spring is a component on a personal generator.
Precision Wire Forming Capabilities Applied/Processes
Wire Forming/Coiling
Stress Relief (in-house)
Phosphate Coating (outsourced)
Equipment Used to Manufacture Part #1 CNC Coiler
Overall Part Dimensions Length: 8.75" ±0.150"
O.D.: ø 0.212" +0.010"/-0.003"
I.D.: ø 0.082"
Tightest Tolerances ± 0.005"
Material Used 0.058" Music Wire
Material Finish Phosphate Coated (Dry)
In process testing/inspection performed
Overall Length
Outside Diameter
Inside Diameter
Custom Gauge built for In Process Testing
Industry for Use Camping Industry
Volume 11,000/year
Delivery/Turnaround Time 3-4 weeks
Delivery Location Kansas
Standards Met Customer supplied print, 2D CAD Drawing
Product Name Generator Coil

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