OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel
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OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring SteelOD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel

OD 10mm ID 5mm Compression Spring Mould Die Spring Light Heavy Duty Spring Steel

HomeDIYer
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By HomeDIYer®

Price:
$2.30 USD
Stock:
In stock (500 units), ready to be shipped

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Description

OD 10mm ID 5mm Compression Die Springs — Reliable Force for Molds, Fixtures & DIY Automation

When a mold fails to eject cleanly or a fixture loses its return force mid-run, the culprit is almost always an undersized or worn compression spring. Engineers, toolmakers, and serious DIY makers who work with injection molds, stamping dies, and precision jigs need a spring that delivers consistent load across thousands of cycles without fatigue. These OD 10mm ID 5mm mould die compression springs are engineered for exactly that demand, available in four duty ratings so you can match spring force to your actual application load.

Each spring features an outer diameter of 10mm (0.394 in) and an inner diameter of 5mm (0.197 in), wound from spring steel with a color-coded finish that identifies duty rating at a glance. Free lengths range from 15mm (0.59 in) to 150mm (5.91 in), covering a wide span of stroke requirements. The wire diameter varies by duty rating — lighter duties use finer wire for lower initial loads, while heavier duties use thicker wire for higher force output across the same travel range.

Typical use cases include injection mold ejector-pin return systems, progressive stamping die stripper plates, pneumatic fixture clamp return mechanisms, and custom DIY automation projects where a compact 10mm OD spring fits into a counterbored pocket. The color coding — Yellow (Extra Light), Blue (Light), Red (Medium), Green (Heavy), Brown (Super Heavy) — makes it straightforward to swap duty ratings during prototyping without measuring wire diameter by hand.

⚙️ Compatibility: Fits standard 10mm OD spring pockets with a 5mm guide pin or mandrel. Verify free length and compressed length against your stroke requirement before ordering.

✅ Key Features of These OD 10mm ID 5mm Compression Die Springs

🎨 5 Duty Ratings, Color-Coded

Yellow (Extra Light), Blue (Light), Red (Medium), Green (Heavy), and Brown (Super Heavy) — select the force level your application requires without guesswork.

📏 Wide Length Range: 15–150mm

Free lengths from 15mm (0.59 in) to 150mm (5.91 in) cover short-stroke ejector pins through long-travel stripper plates in a single product family.

🔩 Precision OD 10mm / ID 5mm

Consistent outer and inner diameters ensure drop-in fit into standard 10mm counterbored pockets and onto 5mm guide pins or mandrels.

🔄 Spring Steel Construction

Wound from spring steel for repeatable load-deflection characteristics and resistance to set under sustained compression across extended duty cycles.

📦 Flexible Pack Quantities

Available in 1-piece, 4-piece, and 10-piece packs — order a single spring for a repair or a multi-pack for production tooling without overstocking.

🛠️ Broad Application Fit

Suited for injection mold ejector return, stamping die stripper plates, pneumatic fixture clamps, and compact DIY automation builds where a 10mm OD spring is specified.

📐 Technical Specifications — OD 10mm ID 5mm Compression Die Springs

Outer Diameter (OD) 10mm (0.394 in)
Inner Diameter (ID) 5mm (0.197 in)
Free Length Range 15mm – 150mm (0.59 in – 5.91 in)
Duty Ratings Available Extra Light (Yellow) / Light (Blue) / Medium (Red) / Heavy (Green) / Super Heavy (Brown)
Wire Diameter See variant options
Material Spring Steel
Surface Finish Color-coded paint by duty rating
Pack Quantity Options 1 pcs / 4 pcs / 10 pcs
Spring Type Compression (Mould / Die Spring)
End Type See variant options
Spring Rate See variant options

❓ Frequently Asked Questions

How do I choose the right duty rating (colour) for my application?

Match the duty rating to the load your application requires at the working deflection. Yellow (Extra Light) suits light ejector-pin return with minimal force. Blue (Light) and Red (Medium) cover general-purpose mold and fixture work. Green (Heavy) and Brown (Super Heavy) are for high-force stripper plates or applications where the spring operates near maximum deflection. If you are unsure, start with Medium (Red) and adjust based on measured return force.

How do I select the correct free length?

Measure your available pocket depth (the space the spring occupies when the mold or fixture is fully open). The spring free length should be equal to or slightly less than that pocket depth. Then verify that the compressed length at maximum stroke does not exceed the spring's solid height — compressing a spring to solid height causes permanent set and rapid failure.

What is the maximum safe deflection for these springs?

As a general guideline for mould die springs, working deflection should not exceed 30–40% of free length for Extra Light and Light duty, and up to 40–50% for Medium through Super Heavy duty. Exceeding these limits accelerates fatigue. Refer to the specific spring rate data for your selected variant to calculate exact working loads.

Are these springs corrosion-resistant?

These springs are wound from spring steel with a color-coded paint finish. The paint provides a degree of surface protection, but spring steel is not inherently stainless. For environments with moisture, coolant exposure, or chemical contact, consider applying a light oil coating during storage and installation, or contact us to confirm suitability for your specific environment.

Will a 5mm guide pin fit inside the spring?

Yes. The inner diameter is 5mm, which is designed to accept a 5mm guide pin or mandrel. This keeps the spring aligned during compression and prevents lateral buckling, especially important for longer free lengths (75mm and above). Ensure the guide pin has adequate clearance and a smooth surface finish to avoid abrasion on the spring coils.

Can I use these springs in a DIY automation or robotics project?

Yes. The compact 10mm OD makes these springs well-suited for DIY automation builds, 3D-printer bed leveling mechanisms, linear actuator return systems, and small robotic gripper return springs. Select the duty rating based on the return force you need and the stroke your mechanism travels. The 1-piece pack option lets you prototype with a single spring before committing to a larger quantity.

What is the difference between the 1-piece, 4-piece, and 10-piece packs?

All packs contain identical springs — the only difference is quantity. The 1-piece pack is ideal for replacement or prototyping. The 4-piece pack suits small production molds with multiple ejector pins. The 10-piece pack offers a lower per-unit cost for production tooling or when stocking spares for ongoing maintenance.

🛒 Select your Colour, Length, and Pack Quantity above, then add to cart.

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