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The ASSOCIATED SPRING RAYMOND 104-507 is a medium heavy-duty die spring engineered for use in stamping dies, punch presses, and industrial tooling applications. It features a trapezoidal wire cross-section, which provides a higher load capacity per unit of compressed length compared to standard round-wire springs. The 104-507 delivers a maximum deflection load of 284.9 pounds with a spring rate of 461 pounds per inch, making it suitable for applications that demand consistent, repeatable force. Constructed from chromium alloy steel, it resists fatigue and deformation under cyclic loading conditions common in production tooling environments.
This die spring is designed for installation on die sets and tooling assemblies where a 1 inch hole diameter and 1/2 inch rod diameter are specified. The 1-3/4 inch free length suits applications with moderate travel requirements. Color coding follows the industry-standard red designation for medium heavy-duty duty rating, allowing quick visual identification during die maintenance and setup. Typical installers include tool-and-die makers, press technicians, and maintenance machinists working in metal fabrication, stamping, and forming operations.
Designed as an OEM-style replacement or standard fitment for die sets and tooling assemblies requiring a 1 inch hole diameter, 1/2 inch rod diameter, and 1-3/4 inch free length die spring in the medium heavy-duty red duty class.
Installation is typically performed by qualified tool-and-die technicians or maintenance machinists. Before replacing a die spring, de-energize all press equipment and relieve any stored mechanical energy in the tooling assembly. Ensure the rod and hole dimensions of the die set match the spring specifications before installation. Do not compress the spring beyond its rated maximum deflection of 0.65 inches, as overcompression accelerates fatigue and reduces service life.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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