Associated Spring Raymond 203-306 Die Spring 1.5 in Green

Product Description

The ASSOCIATED SPRING RAYMOND 203-306 is a green-coded die spring engineered for precision tooling and stamping die applications. Built from chromium alloy steel with a trapezoidal wire cross-section, this spring delivers consistent force and repeatable deflection under high-cycle industrial loads. The free length measures 1-1/2 inches (38.00 mm), with a rod diameter of 8.00 mm and a hole diameter of 16.00 mm. Maximum deflection reaches 15.60 mm, with a maximum deflection load of 301.10 N and a spring rate of 110.21 N/mm. The green color coding follows ISO 10243 standards, indicating a medium-light load class suitable for moderate-duty tooling setups.

This die spring is used in stamping dies, punch press tooling, molds, and fixture assemblies across manufacturing and fabrication environments. The ISO 10243-compliant sizing makes it a direct-fit option in die sets designed around metric interchangeable spring standards. Typical installers include toolmakers, die setters, and maintenance machinists working in production stamping, metal forming, and injection mold tooling environments. Green-series springs in this size range are commonly specified where moderate force with controlled deflection is required.

Key Features

• Chromium alloy steel construction for high-cycle fatigue resistance
• Trapezoidal wire cross-section maximizes solid height efficiency and load capacity
• Green color code per ISO 10243 identifies medium-light load class at a glance
• Free length of 1-1/2 inches (38.00 mm) with 15.60 mm maximum deflection travel
• Spring rate of 110.21 N/mm for predictable, linear force response
• Manufactured under ISO 9001:2008 and ISO/TS 16949:2009 quality systems

Compatibility

Designed as an ISO 10243-compliant replacement or specification die spring for stamping dies, punch tooling, and mold assemblies requiring an 8.00 mm rod diameter, 16.00 mm hole diameter, and 38.00 mm free length in the green medium-light load class.

Installation Notes

Die springs should be installed by qualified toolmakers or die setters with the press or tooling fully de-energized and locked out per applicable machine-guarding standards. Confirm rod and bore diameters match the spring before seating to avoid side loading, which accelerates fatigue failure. Do not compress beyond the rated maximum deflection of 15.60 mm, as operating at or beyond solid height significantly reduces service life. Inspect springs for set, cracking, or discoloration at each die maintenance interval.