Yantai ZK Optics Co., Ltd.
Custom fabrication of high precision glass parts. Spirit of enterprise: Integrity, Pragmatism, Innovation, Win-win, Appreciation. Tenet of enterprise: the Supremacy of Customer, the Excellence in
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Large Size Customized Polishing Clear Borosilicate Glass Bell Jar Glass Cover
Beijing Zhongcheng Quartz Glass Co., Ltd(ZCQ) can customize quartz and borosilicate glass bell covers according to customer requirements, which can be used in laboratory and other fields.
ZCQ is a high-precision glass products deep processing enterprise integrating quartz glass CNC processing, thermal processing and wire drawing. Good at processing and customizing all kinds of glass products according to customer requirements.
| Borosilicate glass | |
| Silicon Content | >80% |
| Coefficient of Thermal Expansion (20-300℃) | 3.3×10-6 /K |
| Density(20℃) | 2.23g/cm3 |
| Hot Work Temperature(104dpas) | 1220℃ |
| Annealing temperature | 560℃ |
| Softening temperature | 820℃ |
| Refractive Index | 1.47 |
| Thermal Conductivity | 1.2Wm-1 K -1 |
Rich experience in quartz glass industry
We have more than 25 years industry experience in quartz glass processing. We specialize in quartz glass capillary tubes and rods, quartz glass substrates, CNC machined quartz, and quartz instruments etc. According to product application, we have good grasp of material properties and adapt the proper material into product application.
Strong technical force in processing and application
Beijing Zhong Cheng Quartz Glass Co., Ltd(ZCQ) is a high-tech manufacturer specializing in the production and customization of quartz glass products and optical glass products. We has excellent technical strength, strong innovation ability and stable product quality. Our processing method is rich, drawing of glass, cold and thermal processing, micro size machining, high precision and difficulty process, combination of multiple processing methods, which guarantee that our product is excellent in all aspects.
Integrity and Quality Assurance
We are well known in quartz glass industry. Quality is the lifeline of enterprise survival and development. Integrity is the source of enterprise reputation, the foundation of standing and the foundation of development. Through unremitting efforts and continuous improvement, we have created a good manufacturing platform of optical glass for customers.