Associated Spring Raymond 104-405 Die Spring Red Medium Heavy-duty

Product Description

The ASSOCIATED SPRING RAYMOND 104-405 is a medium heavy-duty die spring designed for use in stamping dies, punch presses, and similar tooling applications. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers a spring rate of 380 pounds per inch and a maximum deflection load of 175.8 pounds over a maximum deflection of 0.46 inches. The red color coding identifies the medium heavy-duty duty rating per industry-standard die spring classifications. Licensed HVAC, tooling, and industrial maintenance professionals install this type of spring during die set assembly or scheduled die maintenance.

This die spring is suited for use in metal stamping dies, injection mold tooling, and industrial press applications where controlled, repeatable spring force is required. The 0.75-inch hole diameter accommodates standard die set guide posts, and the 0.375-inch rod diameter provides clearance for standard guide rods. The 1.25-inch free length makes it appropriate for compact die sets with limited spring pocket depth. It is commonly installed in both OEM die builds and die repair or replacement scenarios in manufacturing environments.

Key Features

• Trapezoidal wire cross-section delivers higher load capacity per inch of deflection compared to round wire designs
• Medium heavy-duty rating with a spring rate of 380 pounds per inch
• Maximum deflection load of 175.8 pounds at 0.46 inches of travel
• Chromium alloy steel construction for durability under cyclic loading
• Red color coding for fast duty-rating identification during die assembly
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 certified quality systems

Compatibility

Designed as a standard-dimension replacement die spring for medium heavy-duty applications requiring a 0.75-inch hole diameter, 0.375-inch rod diameter, and 1.25-inch free length in stamping dies and industrial tooling.

Installation Notes

Installation is performed by tooling technicians or die maintenance personnel during die set assembly or repair. Always relieve all press pressure and lock out the press before removing or replacing die springs. Inspect the spring pocket and guide rod for wear or damage before seating the new spring. Do not compress the spring beyond its rated maximum deflection during setup or operation.