Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm
Roll over image to zoom in Click on image to zoom
Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mmBlue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mmBlue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mmBlue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mmBlue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mmBlue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm

Blue-Light Duty Load Compression Spring Die Springs O.D:8-22mm Length:20-175mm

HomeDIYer
No reviews

By HomeDIYer®

Price:
$3.64 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact BLIK Diners Club Discover EPS Google Pay iDEAL Wero JCB Maestro Mastercard Multibanco MobilePay PayPal Przelewy24 Shop Pay Twint Union Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Limited Offer — Spend More, Save More
Spend $55+
Save $5
Spend $100+
Save $10
Spend $200+
Save $25
✅ Discount applied automatically at checkout 🚚 Free shipping on orders over $89
HomeDIYer DIY Expert Support

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri  8:30 AM – 8:00 PM
WhatsApp
24-Hour Fast Ship
Arrives in 3–14 Days
Worldwide Shipping
30-Day Returns
1 tree planted with every purchase

Description

Blue-Light Duty Compression Die Springs — Reliable Elastic Return for M8–M22 Applications

When a stamping die, injection mold, or DIY automation fixture loses its consistent return force, the entire process suffers — misaligned parts, uneven strokes, and premature tooling wear. Blue-light duty compression die springs are engineered for makers, small workshops, and tooling engineers who need a dependable, low-to-medium load elastic element without over-engineering the assembly.

These die springs feature a round wire coil construction with a blue-coded finish that identifies the light load rating per ISO 10243 / JIS B 5012 conventions. Outer diameter ranges from 8 mm (≈0.31 in) to 22 mm (≈0.87 in), with free lengths spanning 20 mm (≈0.79 in) to 175 mm (≈6.89 in). Wire diameter and coil count vary by size; see variant options for exact per-size specifications.

Typical use cases include punch-and-die return mechanisms in sheet metal stamping, stripper plate actuation in progressive dies, spring-loaded clamps and fixtures in CNC workholding, and custom linear actuator return stages in DIY automation projects — all scenarios where a compact, consistent blue-light load spring reduces setup time and improves repeatability.

⚙️ Compatibility: Designed for standard die-set guide posts and spring pockets. Verify bore diameter and free-length clearance against your tooling drawing before ordering. Metric thread sizes M8–M22 guide post compatibility — see variant options for per-size fit data.

✅ Key Features of These Blue-Light Duty Compression Die Springs

🔵 Blue-Light Load Rating

Color-coded blue per ISO 10243 / JIS B 5012 light-duty classification, providing consistent low-to-medium return force suitable for stripper plates and light clamping fixtures.

📐 Wide Size Range

O.D. 8–22 mm and free length 20–175 mm in a single product family, letting you standardize on one supplier across multiple tooling stations.

🔩 Round Wire Coil Construction

Uniform round wire cross-section delivers predictable load-deflection behavior and even stress distribution across the coil body.

🛡️ Corrosion-Resistant Finish

Surface treatment helps resist oxidation in typical workshop and light industrial environments; avoid prolonged exposure to aggressive chemicals or standing water.

📦 Flexible Quantity Options

Available in packs of 1 or 5 pieces per order, so you can prototype with a single spring or stock a small batch for production runs without over-ordering.

🔄 Drop-In Replacement Geometry

Outer diameter and free-length dimensions follow standard die-spring pocket conventions, making these a straightforward swap for worn or broken springs in existing tooling.

📐 Technical Specifications — Compression Die Springs

Load Rating Blue-Light duty (ISO 10243 / JIS B 5012)
Outer Diameter (O.D.) 8 mm – 22 mm (≈0.31 in – 0.87 in)
Free Length 20 mm – 175 mm (≈0.79 in – 6.89 in)
Wire Cross-Section Round wire
Wire Diameter See variant options
Inner Diameter (I.D.) See variant options
Spring Rate See variant options
Maximum Deflection See variant options
Material Spring steel alloy (exact grade: Contact us to confirm)
Surface Finish Corrosion-resistant coating; blue color identification
Quantity per Pack 1 pc or 5 pcs (select above)
Standard Reference ISO 10243 / JIS B 5012 (blue-light class)

❓ Frequently Asked Questions

How do I choose the right outer diameter and free length for my die?

Match the O.D. to your spring pocket bore (the spring O.D. should be 0.5–1 mm smaller than the pocket diameter for clearance). Choose a free length that gives you the required working stroke plus at least 15–20% safety margin to avoid coil bind. Refer to your tooling drawing for pocket depth and required deflection, then select the closest standard size from the variant list above.

What does "blue-light duty" mean, and how does it compare to other color ratings?

Die springs are color-coded by load class. Blue indicates the lightest standard load rating — suitable for stripper plates, light clamping, and low-force return applications. Yellow is light-medium, red is medium, green is heavy, and brown is extra-heavy. If your application requires significant clamping force or high-cycle fatigue resistance, consider stepping up to a heavier color class.

Are these springs corrosion-resistant enough for a humid workshop environment?

The surface coating provides basic protection against oxidation in typical indoor workshop conditions. For environments with coolant mist, cutting fluid splash, or high humidity, we recommend periodic light oiling and storing unused springs in a dry location. For aggressive chemical environments, contact us to confirm suitability before ordering.

Can I use these springs as a direct replacement for worn die springs in existing tooling?

Yes, provided you match the O.D., free length, and load class (blue-light) of the original spring. Measure the pocket bore and the original spring's free length before ordering. If the original spring has compressed or taken a set, measure the pocket depth and required stroke instead, then select accordingly.

What is the maximum deflection I should use in service?

For blue-light duty die springs, a working deflection of up to approximately 30–40% of free length is typical for standard-cycle applications. Exceeding 40% deflection per stroke significantly reduces fatigue life. For high-cycle tooling (over 500,000 strokes), keep working deflection below 25–30% of free length. Exact maximum deflection per size is listed in the variant specifications — contact us if you need the data sheet for a specific size.

Do you sell individual springs or only in packs?

Both options are available. Select "1" in the Qty(pcs) option for a single spring, or "5" for a pack of five. The 5-pack price reflects a per-unit discount compared to buying singles, making it cost-effective for stocking common sizes used across multiple tooling setups.

What thread sizes or guide posts are these springs compatible with?

The O.D. range of 8–22 mm covers guide post and spring pocket sizes commonly associated with M8 through M22 metric guide post diameters in standard die sets. Always verify the inner diameter (I.D.) of the specific spring size against your guide post O.D. — the guide post should pass through the spring I.D. with a small clearance. See variant options for per-size I.D. data or contact us to confirm fit.

🛒 Select your Outer Diameter × Length and Qty above, then add to cart.

You may also like

Recently viewed