Urethane Springs — Round Type
Cylindrical polyurethane springs in heavy duty, economy, low repulsion, and porous foam grades. Solid, through-hole, counterbore, and configurable-length options. Direct drop-in replacement for metal die springs.
Products in This Category
EX Series Heavy-Duty Urethane Pillar Springs (Through Hole)
EX series heavy-duty urethane pillar springs with a through hole for load-bearing die cushioning. Urethane shore A90 supports stable performance. Request a q...
View Details
EX Series Heavy Duty Urethane Springs Pillar Hourglass
EX Series heavy duty urethane springs with pillar hourglass shape and shore A90 for heavy loads. Max elongation 30%—stable deflection for die return.
View Details
Heavy Duty Urethane Pillar Springs - A Series, Through Hole
Heavy Duty Urethane Pillar Springs - A Series, Through Hole. Shore A90 for heavy loads and up to 25% elongation during use. Contact us to request a quote.
View Details
E Series Heavy Duty Urethane Springs - Pillar Type Through Hole
E Series heavy duty urethane springs with pillar shape and through hole design for load-bearing applications. Shore A90 urethane for stable performance. Requ...
View Details
EL Series Heavy Load Urethane Pillar Springs Through Hole
EL Series heavy load urethane pillar springs for through-hole assemblies. Shore A90 urethanes offer load capacity for reliable return in tooling systems. Ord...
View Details
Heavy Duty Urethane Springs Pillar Shape
Heavy Duty Urethane Springs with pillar shape for heavy loads (Shore A90). Choose hole or no-hole versions for stable force in tooling assemblies.
View Details
Heavy Load Urethane Pillar Springs Through Hole
Heavy Load Urethane Pillar Springs Through Hole for demanding applications. AX/CX urethane formulation with Shore A90 support stable deflection control. Requ...
View Details
AZ Type Heavy Duty Urethane Springs Pillars - Counterbore
AZ type heavy duty urethane springs pillars with counterbore for secure mounting. Built for heavy loads and stable deflection. Request a quote.
View Details
AZX Type Heavy Load Urethane Pillar Springs with Counterbore
AZX type heavy load urethane pillar springs with counterbore for stable die return. Shore A90 heavy-duty urethane resists compression set—request a quote.
View Details
AE Type Heavy-Load Urethane Pillars Through Hole
AE type heavy-load urethane pillars through hole for molding and industrial fixtures. Shore A90 urethane with a pillar shape for stable support under load. C...
View Details
Economy Urethane Springs - CE/LAE Pillar Shape Long Type
Economy Urethane Springs with pillar shape (CE/LAE types) for long loading support. Heavy-load urethane material improves stability under compression.
View Details
Heavy Load Urethane Pillars (AEX, CEX Series)
Heavy Load Urethane Pillar Springs from MISUMI in the AEX / CEX series. Shore A90 urethane for stable heavy-load support in configurable lengths—request a qu...
View Details
Porous Urethane Foam for High-Deflection PA Series
Porous Urethane Foam for High-Deflection PA Series with pillar shape and through hole design. High-deflection urethane for controlled compression. Request a ...
View Details
Porous Urethane Foam High-Deflection Pillar Type (PLA Series)
Porous Urethane Foam High-Deflection Pillar Type (PLA Series) for load-bearing cushioning and improved deflection control in dies. Consult MISUMI.
View Details
AN Series Low Repulsion Urethane Pillar Springs (Through Hole)
AN Series low repulsion urethane pillar springs with through hole construction for stable return in tooling. AN type for controlled deflection—request a quote.
View Details
LAN Series Low Repulsion Urethane Pillar Springs
LAN Series Low Repulsion Urethane Pillar Springs for stable return in die and tooling. Shore A70 low repulsion urethane, through hole options. Request a quote.
View Details
AZ Type Urethane Pillar Springs - Low Repulsion Counterbore
AZ type urethane pillar springs with low repulsion urethanes (Shore A70) and counterbore type design for controlled compression. MISUMI.
View Details
AZNX Series Low Repulsion Urethane Springs Pillars, Counterbore
AZNX Series low repulsion urethane springs pillar type with counterbore holes. (Shore A70) Helps control movement and load response in tooling setups.
View Details
Inch Marshmellow Die Springs - Urethane Springs for Heavy Loads
Inch Marshmellow Die Springs from Lamina use shore A90 urethane for heavy loads. Pillar-style support with hole/counterbore helps reduce wear—request a quote.
View Details
Marshmellow Die Springs Metric Urethane Springs
Marshmellow Die Springs Metric Urethane Springs for heavy-load mold support. Urethane Springs with Shore A 90, pillar form and counterbore for stable setup.
View Details
Formathane Urethane Springs (Inch) Low Repulsion
Formathane urethane springs in inch sizes use low repulsion urethanes for reliable shock absorption and stable elasticity across light to heavy loads. Reques...
View Details
Formathane Medium Duty Urethane Springs & Tube Stock - Inch
Formathane Medium Duty Urethane Springs & Tube Stock - Inch for industrial vibration damping and shock absorption. DANLY IEM durability—request a quote.
View Details
Heavy Duty Formathane Urethane Springs & Tube Stock (Inch)
Heavy Duty Formathane Urethane Springs & Tube Stock (Inch) by DANLY IEM dampen vibration for reliable shock absorption and stability in industrial tooling. R...
View Details
Inch Formathane Urethane Rods - Low Repulsion Springs
Inch Formathane Urethane Rods - Low Repulsion Springs for vibration damping and load cushioning. DANLY IEM urethane supports shock absorption—request a quote.
View Details
Precision-Cast Formathane Urethane Rods (Metric)
Precision-Cast Formathane Urethane Rods (Metric) by DANLY IEM provide dependable shock absorption for industrial loads. Explore rod stock and cushioning supp...
View Details
Metric Formathane Urethane Pillar Springs
Metric Formathane urethane pillar springs by DANLY IEM provide dependable shock absorption by minimizing vibration and impact forces. Contact us for availabi...
View DetailsChoose Your Urethane Grade & Configuration
Two decisions determine your product: (1) performance grade, then (2) physical configuration.
Maximum load capacity
→ EX, A, E, AX, AZ, AZX, C/LA series
Standard load, lower cost
→ AE, LAE, CEX series
Gentle force for delicate parts
→ AN, ANX, AZN, AZNX series
Max deflection (>50%)
→ PA, PLA series
Guide pin centering, most popular
→ EX, AE, ANX series
Maximum load-bearing surface
→ A, E, AN series
Self-centering in bore
→ AZ, AZN series
Non-standard lengths (1mm increments)
→ AX, EL, AEX, AZNX series
Configuration Comparison
| Criteria | Through Hole | Solid | Counterbore | Configurable |
|---|---|---|---|---|
| Guide pin support | Yes (pin through center) | No | Yes (self-locating recess) | Optional |
| Load-bearing area | Slightly reduced (hole area) | Maximum (full face) | Slightly reduced | Varies |
| Length options | Standard fixed lengths | Standard fixed lengths | Standard fixed lengths | Custom (1mm increments) |
| Best for | Guided spring pockets (most common) | Maximum load, simple install | Self-centering without guide pin | Non-standard die designs |
For detailed configuration selection guidance, see our What Is the Best Urethane Spring Configuration — Solid vs Through Hole vs Counterbore.
About Round Urethane Springs
Round urethane springs are the most versatile urethane spring form — they fit standard cylindrical spring bores and serve as direct drop-in replacements for metal die springs. Our 26-product range includes MISUMI heavy duty (EX/A/E/AX/AZ series), economy (AE/LAE/CEX), low repulsion (AN/ANX/AZN/AZNX), and porous foam (PA/PLA) grades, plus Lamina Marshmellow and DANLY Formathane precision-cast lines. Each grade is available in multiple configurations (solid, through-hole, counterbore, configurable length).
Frequently Asked Questions
Engineering Resources
How to Choose Between Heavy Duty, Economy, and Low Repulsion Urethane Springs
Decision framework for selecting the right performance grade for your stamping application.
What Is the Best Urethane Spring Configuration — Solid vs Through Hole vs Counterbore
Physical configuration comparison with installation and performance trade-offs.
Frequently Asked Questions
What is the difference between Heavy Duty, Economy, and Low Repulsion urethane spring series?+
Should I choose a solid, through-hole, or counterbore urethane spring?+
What is the maximum deflection allowed for Shore A90 urethane springs?+
Can I order custom-length urethane springs, and which series support it?+
Engineering Resources
How to Choose Between Heavy Duty, Economy, and Low Repulsion Urethane Springs
Decision framework for selecting the right performance grade for your stamping application.
What Is the Best Urethane Spring Configuration — Solid vs Through Hole vs Counterbore
Physical configuration comparison with installation and performance trade-offs.
Need a Custom Quote?
Specify your grade (Heavy Duty/Economy/Low Repulsion/Porous Foam), configuration (solid/through-hole/counterbore), OD, ID, and length. Configurable series allow custom lengths in 1mm increments.