Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of dental handpiece seals in China, also supports customized service. Please feel free to buy high quality dental handpiece seals for sale here from our factory.
Importance of dental handpiece seals
- Handpiece seals play a vital role in the proper functioning of dental handpieces. Seals in Dental Handpiece Parts, such as Dental Turbine Seals and Dental Air Turbine Seals, prevent leaks and ensure the proper flow of air, water, and other fluids inside the handpiece.
- Seals, such as Handpiece Rubber Seals and Dental Handpiece Seal Rings, are essential for maintaining pressure and airflow in the handpiece, which directly affects the cutting and drilling results of dental procedures. High-Quality Dental Seals and Reliable Dental
- Handpiece Seals provide reliable sealing performance to ensure precise operation of the handpiece.
- Seals also play an important role in infection control. Dental Equipment Seals and Dental Instrument Seals prevent bacteria, saliva, and other contaminants from entering the handpiece, reducing the risk of cross infection, which is essential to maintaining patient safety and health.
- Good seals also extend the life of dental handpieces. Proper functioning of Dental Handpiece Bearings and Seals protects the internal components of the handpiece from damage due to leaks and contamination, reducing the frequency of repairs and replacements, thus saving costs for dentists.
- Precision Dental Seals ensure smooth operation of the handpiece, reduce noise and vibration, and improve patient comfort during treatment.
- Regular Dental Handpiece Maintenance and timely replacement of Dental Handpiece Replacement Seals are key to maintaining seal performance, helping to ensure optimal performance and reliability of dental handpieces.

Materials of dental handpiece seals
The seals in dental handpieces are usually made of rubber or synthetic polymers and sit on the head of the handpiece. Its main function is to prevent water, saliva and other debris from entering the phone and interfering with its operation.
However, the seal also helps reduce friction between the turbine and the handpiece head. This not only minimizes wear on the turbine, but also reduces heat generated by friction.
Without proper sealing, the handpiece's turbine can be damaged or destroyed, resulting in increased repair costs and reduced efficiency. Therefore, it is very important to regularly inspect and replace the seals in dental handpieces.
| Physical properties | Rated value | Unit system | Test Methods |
| proportion | 1.81 | g/cm³ | ASTM D792 |
| Hardness | Rated value | Unit system | Test Methods |
| Shore Hardness (Shore A) | 90 | ASTM D2240 | |
| Elastomer | Rated value | Unit system | Test Methods |
| Tensile stress (100% strain) | 13.4 | MPa | ASTM D412 |
| Tensile Strength (Break) | 14.1 | MPa | ASTM D412 |
| Elongation (break) | 110 | % | ASTM D412 |
| Compression Set 1 | ASTM D395 | ||
| 23°C, 70 hours | 19 | % | ASTM D395 |
| 175°C, 70 hours | 33 | % | ASTM D395 |
| 175°C, 166 hours | twenty two | % | ASTM D395 |
| 200°C, 22 hours | 18 | % | ASTM D395 |
| Ageing | Rated value | Unit system | Test Methods |
| Rate of Change of Tensile Strength in Air (175°C, 70 hr) | -33 | % | ASTM D573 |
| Rate of Change of Ultimate Elongation in Air (276°C, 70 hr) | 9 | % | ASTM D573 |
| Rate of Change of Durometer Hardness in Air (276°C, 70 hr) | 3 | ASTM D573 |
In summary, the seal in a dental handpiece may seem like a small part, but it plays a vital role in ensuring the handpiece operates effectively and efficiently. Regular maintenance of the seals, including inspection and replacement when necessary, will help extend the life of your phone and reduce repair costs.
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| Physical properties | Rated value | Unit system | Test Methods |
| proportion | 1.81 | g/cm³ | ASTM D792 |
| Hardness | Rated value | Unit system | Test Methods |
| Shore Hardness (Shore A) | 90 | ASTM D2240 | |
| Elastomer | Rated value | Unit system | Test Methods |
| Tensile stress (100% strain) | 13.4 | MPa | ASTM D412 |
| Tensile Strength (Break) | 14.1 | MPa | ASTM D412 |
| Elongation (break) | 110 | % | ASTM D412 |
| Compression Set 1 | ASTM D395 | ||
| 23°C, 70 hours | 19 | % | ASTM D395 |
| 175°C, 70 hours | 33 | % | ASTM D395 |
| 175°C, 166 hours | twenty two | % | ASTM D395 |
| 200°C, 22 hours | 18 | % | ASTM D395 |
| Ageing | Rated value | Unit system | Test Methods |
| Rate of Change of Tensile Strength in Air (175°C, 70 hr) | -33 | % | ASTM D573 |
| Rate of Change of Ultimate Elongation in Air (276°C, 70 hr) | 9 | % | ASTM D573 |
| Rate of Change of Durometer Hardness in Air (276°C, 70 hr) | 3 | ASTM D573 |









