Laboratory Centrifuges: High-Speed Balance Dampers in Specialized Nitrile
Problem Statement
High-speed laboratory centrifuges require balance dampers that withstand extreme rotational forces, chemical exposure, and thermal cycling. Standard NBR compounds fail due to compression set degradation and chemical swelling at elevated temperatures.
Material Science Analysis
Specialized Nitrile (HNBR) outperforms standard NBR due to its hydrogenated backbone, which enhances thermal stability and chemical resistance. The fluorine content in HNBR provides superior resistance to oils, fuels, and solvents, critical for laboratory environments.
Technical Specs
- Shore A Hardness: 70 ± 5
- Tensile Strength: 20 MPa
- Elongation at Break: 300%
- Temperature Range: -40°C to 150°C
- Compression Set: ≤ 20% (22 hours @ 150°C)
Material Comparison
| Material | Shore A Hardness | Tensile Strength (MPa) | Elongation at Break (%) | Temperature Range (°C) | Compression Set (%) |
|---|---|---|---|---|---|
| HNBR | 70 ± 5 | 20 | 300 | -40 to 150 | ≤ 20 |
| Standard NBR | 70 ± 5 | 15 | 250 | -20 to 100 | ≥ 40 |
| EPDM | 70 ± 5 | 18 | 350 | -50 to 120 | ≤ 30 |
Standard Compliance
RubberQ adheres to IATF 16949 standards for batch-to-batch consistency. All HNBR compounds comply with ASTM D2000 and ISO 3601 specifications, ensuring material traceability and performance reliability.
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
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