Associated Spring Raymond 203-828 Light-duty Die Spring

Product Description

The ASSOCIATED SPRING RAYMOND 203-828 is a light-duty die spring designed for use in stamping dies, punch presses, and tooling fixtures. It features a trapezoidal wire cross-section, which provides a higher load capacity relative to its envelope size compared to round-wire springs. The spring is manufactured from chromium alloy steel and finished in green to indicate its light-duty load rating. With a free length of 7 inches (178 millimeters), a rod diameter of 25 millimeters, and a hole diameter of 50 millimeters, it fits standard die set configurations. It is installed and serviced by tool and die makers, press technicians, and maintenance machinists.

This die spring is suited for light-duty press tooling applications in both production and maintenance environments. It is used where controlled, repeatable spring force is required within a confined die space. The 203-828 conforms to ISO 10243, making it interchangeable with other ISO-standard light-duty die springs of the same load class and envelope dimensions. Typical applications include stripper plates, pressure pads, and component ejection systems in metal stamping and forming operations.

Key Features

• Trapezoidal wire shape delivers higher load density within a compact die envelope
• Chromium alloy steel construction for fatigue resistance under repeated cycling
• Green color coding identifies light-duty load rating at a glance
• Conforms to ISO 10243 for interchangeability with ISO-standard die springs
• Maximum deflection load of 829.99 pounds (3,692 N) at full travel to solid
• Maximum deflection of 71 millimeters provides defined travel-to-solid reference for die design

Compatibility

Conforms to ISO 10243 light-duty specifications with a 50-millimeter hole diameter and 25-millimeter rod diameter, making it a drop-in replacement for any ISO 10243 light-duty die spring of equivalent envelope dimensions in standard die sets.

Installation Notes

Die spring replacement is performed by qualified tool and die makers or maintenance technicians with the press locked out and de-energized per OSHA lockout/tagout procedures. The spring should be seated fully in the counterbore with the rod centered through the inner diameter before any press cycling. Do not compress the spring beyond its travel-to-solid dimension during setup or testing. Inspect the mating bore and rod for wear or misalignment before installing a replacement spring.