Associated Spring Raymond 103-448 Die Spring Blue

Product Description

The ASSOCIATED SPRING RAYMOND 103-448 is a medium-duty die spring engineered for use in stamping dies, punch presses, and industrial tooling applications. Built from chromium alloy steel with a trapezoidal wire profile, it delivers consistent load performance across its 12-inch free length. The spring carries a maximum deflection load of 144 pounds at a maximum deflection of 6 inches, with a spring rate of 24 pounds per inch. The blue color coding follows standard die spring duty classification, making identification straightforward during tooling setup and maintenance. This part is sold individually and weighs approximately 0.5 pounds.

This die spring is suited for medium-duty press tooling in manufacturing and fabrication environments. It fits over a 3/8-inch guide rod and seats inside a 3/4-inch hole diameter pocket. Typical applications include stripper plates, lifters, and return mechanisms in progressive and compound dies. Installation and replacement are performed by tool and die makers, machine builders, or maintenance technicians working on stamping and forming equipment.

Key Features

• 12-inch free length with 6-inch maximum deflection for significant working travel
• 144-pound maximum deflection load at a 24 lb/inch spring rate
• Trapezoidal wire cross-section for higher load capacity relative to round wire
• Chromium alloy steel construction for fatigue resistance under cyclic loading
• Blue color coding identifies medium-duty rating per industry die spring standards
• Certified to ISO 9001:2008 and ISO/TS 16949:2009; TUV Rheinland Registered; ANAB Accredited

Compatibility

Designed for use in standard die spring applications requiring a 3/4-inch hole diameter, 3/8-inch rod diameter, and 12-inch free length with medium-duty load characteristics.

Installation Notes

Die springs should be installed by qualified tool and die personnel with the guide rod properly centered to prevent lateral loading and premature wear. Always confirm the pocket bore and rod diameter match the spring dimensions before installation. Inspect seating surfaces for burrs or damage that could cause uneven load distribution. Replace springs in matched sets when used in multi-spring tooling arrangements to maintain balanced stripping or ejection force.