Understanding Rebound Resilience Elasticity Tester Process

In industries reliant on rubber, polymers, and cellular materials, accurately measuring elasticity and impact resilience is critical for quality control. The Rebound Resilience Elasticity Tester provides standardized, repeatable data to evaluate material performance under dynamic stress.

• Compare material batches for consistency.
• Assess aging effects on elasticity.
• Ensure compliance with international testing protocols.

• DIN 53512 German standard for determining rebound resilience of rubber vulcanizates.
• DIN 53573 Specifies testing of cellular polymeric materials (e.g., foam elasticity).
• ISO 4662 International method for rubber resilience using the Lupke pendulum.
• GB/T 1681 Chinese national standard for rubber resilience testing.

• A weighted pendulum strikes a fixed specimen.
• The rebound height of the pendulum is measured to calculate resilience percentage (ratio of rebound energy to impact energy).
• Higher resilience values indicate superior elasticity and energy retention.

• Leveling: Use the built-in bubble level to ensure horizontal alignment (per DIN 53573).

• Impact Head Selection: Choose steel or aluminum heads based on material hardness.

• Cut the material to ISO 4662-specified dimensions.

• Secure the specimen on the test plate using the clamping lever.

• Fix the pendulum to the release lever.
• Adjust the pendulum height until it lightly contacts the specimen.
• Reset the analog pointer to 0%.

• Strikes 1–3: Pre-condition the specimen (discarded to eliminate surface anomalies).
• Strikes 4–6: Record rebound percentages.

Calculate the median value of the final three readings (as per GB/T 1681).

5. Benefits

• Global Compliance: Meets DIN, ISO, and GB/T standards for cross-border quality assurance

• High Accuracy: ±1% deviation ensures reliable data for R&D and audits.

• Quick Setup: Interchangeable heads and intuitive controls reduce downtime.

Q: How does DIN 53512 differ from ISO 4662?
A: DIN 53512 focuses on rubber vulcanizates, while ISO 4662 includes broader elastomer applications. Both use similar pendulum methods.

Q: Is training required to operate this tester?
A: Basic training ensures proper calibration and alignment with DIN/ISO steps, but the design is user-friendly.

Q: Can the GT-KB18 test non-reticulated materials?
A: Yes, it’s designed for EVA, PU, PVC, and similar flexible cellular materials.