Import Automatic Burette Clear Laboratory Glassware — Buy in wholesale FOB from Supplier in China

The automatic burette from Shenzhen Acenyuan Technology Co., Ltd is a clear laboratory glassware instrument designed for precise liquid dispensing in titration and volumetric analysis. It is constructed from borosilicate glass 3.3, a material chosen for its low coefficient of thermal expansion (typical 3.3 x 10-6 K-1) and resistance to thermal shock up to approximately 150 degrees Celsius. The automatic valve mechanism enables controlled dropwise or stream dispensing without manual stopcock manipulation, reducing operator fatigue and improving reproducibility. Graduation markings are etched or printed on the cylindrical tube, though the listing does not specify whether these comply with ISO 385 Class A or Class B tolerance standards, or whether the burette is supplied with a certificate of conformity. The clear glass construction allows full visibility of the meniscus and liquid colour, which is essential for endpoint detection in acid-base, redox, and complexometric titrations.

Borosilicate glass 3.3 is the standard material for laboratory burettes due to its chemical inertness against most acids, bases, and organic solvents except hydrofluoric acid and hot concentrated phosphoric acid. The automatic valve typically employs a PTFE or ground glass plunger, with PTFE offering superior chemical resistance and smoother operation over extended use. Standard burette capacities range from 10 ml to 100 ml, with 50 ml being the most common for general analytical work. Class A burettes carry tolerances of plus or minus 0.05 ml for 50 ml size, while Class B tolerances are approximately double. The listing does not state capacity, tolerance class, or valve material, all of which must be confirmed with Shenzhen Acenyuan Technology Co., Ltd before purchase. Compatibility with corrosive substances is claimed, but the specific chemical resistance profile and maximum temperature limits for the valve seal material are not detailed.

Target buyers include university teaching laboratories, quality control departments in pharmaceutical and food industries, environmental testing facilities, and research institutions performing routine or high-throughput titrimetric analysis. The instrument is suitable for manual titrations where operator skill affects precision, as the automatic mechanism standardises delivery speed. The source mentions ISO and CE certifications, though without certificate numbers, scope, or issuing bodies, these cannot be independently verified. Packaging, MOQ, and lead time are not specified in the listing and require direct negotiation. Shipping terms of FOB and CIF are offered, but port designation, transit time estimates, and payment structure remain unstated.

Shenzhen Acenyuan Technology Co., Ltd is registered at Building 3, Qinchengda Heyuan, Zone 22, Lingzhi Garden Community, Xin'an Street, Shenzhen, 518132, China, situating it in the dense manufacturing and technology supply chain of Guangdong Province. The company holds harbour trust tier status on the platform, which does not constitute independent verification of manufacturing capability, quality management system, or export experience. The response rate is recorded at 0.00 percent with zero average response hours, indicating no platform-mediated communication history and requiring direct contact to assess technical sales support and quotation responsiveness. The listing does not disclose whether Shenzhen Acenyuan Technology Co., Ltd manufactures borosilicate glassware in-house or sources from specialised glassworks within China or elsewhere.

The source description positions the company as offering competitive pricing and necessary certifications, though the absence of specific ISO 9001 registration details, CE directive references, or ISO/IEC 17025 accreditation for calibration services limits due-diligence capability. No information is provided on years in operation, number of employees, annual revenue, major client categories, or export markets served. Buyers should request a factory audit, quality manual, and sample evaluation before committing to bulk orders, particularly for applications requiring documented traceability such as pharmaceutical GMP or environmental accredited testing laboratories. The address in a residential-commercial mixed community suggests potential trading or small-scale assembly operations rather than large-scale glass melting and forming facilities.