TPU dampers must balance rebound, load capacity, compression and fatigue. A lower hardness is not always better. Geometry and mounting determine how the material performs.
Define the cycle
- Static and impact load.
- Allowed compression.
- Cycle frequency and life.
- Temperature and contact media.
Design the element
Use ribs or a stiff core to carry load and TPU for elastic contact. Avoid sharp corners and uncontrolled compression.
Validate
- Cyclic loading.
- Permanent set.
- Temperature rise.
- Mounting wear.
| Parameter | Effect | Test |
|---|---|---|
| Hardness | Rebound and support | Real load |
| Thickness | Compression | Travel |
| Geometry | Stress distribution | Cycle |
| Mounting | Boundary condition | Loosening |
Common engineering mistakes
- Choosing by Shore alone.
- Using a static test as life proof.
- Ignoring mounting clearance.
- Printing wet TPU.
- Comparing different geometries.
Buyer checklist
- What is the load?
- How much compression is allowed?
- How many cycles?
- Is heat generated?
- Is mounting defined?
Send load and motion data through our quote form.