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Compression Springs

Steel Compression Spring
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Steel Compression Spring

A client from the lawn and garden industry came to us for a spring that would be used on a commercial grade lawn mower. They needed a standard design compression spring with ground ends and a zinc plated yellow dichromate finish. We fabricated this compression spring on our CNC spring former and our CNC spring grinder from 0.112" diameter spring steel music wire. The springs were de-burred, plated with yellow zinc, and heat treated to 500°F.

The final dimensions of the springs measured 0.720" outer diameter, 0.496" inner diameter, and 3.000" of free length with coil specifications of 87.4 lb/in. spring rate, 13.5 total coils, and 11.5 active coils. All compression springs passed dimensional and visual inspections and tension/load testing. We produced 500 units in 3 weeks while upholding tightest tolerances of ±0.008".

Working closely with each client to design and produce springs that meet their specifications, Kehr-Buffalo Wire Frame's knowledge and experience sets us above the competition.

Please contact us to learn more about this fabrication of a steel compression spring project or refer to the table below.

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Highlights of this Steel Compression Spring Project

Product Description This spring is used on a commercial grade lawn mower
Precision Spring Capabilities
Spring Forming
Heat Treating
Equipment Used to Manufacture Part CNC spring former
CNC spring grinder
Overall Part Dimensions O.D.: ∅ 0.720"
I.D.: ∅ 0.496
Free Length: 3.000"
Tightest Tolerances ± 0.008"
Material Used Music Wire – Spring Steel
Dia.: ∅ 0.112"
Material Finish Yellow Zinc Plated
Coil Specifications Spring Rate: 87.4 lbs./inch
Total Coils: 13.5
Active Coils: 11.5
Heat Treated: 500°F
In process testing/inspection
Dimensional Inspection, Visual Inspections, Tension/Load Testing
Industry for Use Commercial lawn and garden equipment
Volume 500
Delivery/Turnaround Time 3 weeks
Delivery Location New York State
Standards Met Customer Specifications, 2D CAD Drawing
Product Name Compression Spring
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