UnionClay (Zhengzhou Unionclay Intelligent Equipment Co., Ltd) manufactures laboratory and chemical process equipment at its own factory in Zhengzhou, Henan Province, China. The company carries nearly 25 years of production and service experience, holds ISO 9001:2015 quality management system certification, and exports laboratory equipment to over 100 countries worldwide.
Factory Overview
The manufacturing base sits in Zhengzhou, Henan Province — a recognized hub for laboratory instrument manufacturing in China. Production is in-house: the products page states it plainly as own factory processing, and pricing is factory direct rather than trading-company markup. Equipment is manufactured with advanced CNC machining and precision glass processing technology.
The factory builds temperature control equipment for heating and cooling, stirring and mixing devices, reaction systems, fermentation equipment, synthesis instruments, and separation and purification tools. These serve teaching applications, small-scale trials and mass production across biopharmaceuticals, the chemical industry and new energy testing. Customization is the part the team is most proud of: with nearly 25 years of production and service experience, UnionClay has completed hundreds of non-standard customization projects.
Rotary evaporator assembly area inside the production workshop.
Reactor units staged on the factory floor.
Jacketed glass reactors lined up in the production hall.
Control cabinet of a temperature control unit during assembly.
Equipment lineup outside the factory: reactors, evaporators and chillers.
Engineering and support team at the Zhengzhou office.
Quality Management
UnionClay holds ISO 9001:2015 quality management system certification and maintains professional R&D and quality inspection teams. The published commitment is concrete rather than decorative: every glass reactor is individually assembled, inspected and vacuum-tested before shipment, with strict dimensional tolerances and surface finish standards maintained across production batches. Reactor vessels use certified G3.3 borosilicate glass with full material traceability, and all PTFE components are virgin-grade — no recycled or substandard materials.
A supplier page should not ask you to take its word for anything. The table below maps each quality claim to where UnionClay already publishes it, so your sourcing team can check the original wording first-hand.
| Declared fact | Where it is published on this site |
|---|---|
| ISO 9001:2015 quality management system certification | About Us — company history |
| Nearly 25 years of production and service experience | About Us — company profile |
| Products exported to over 100 countries worldwide | About Us — company profile |
| Own factory processing and 24-hour online service | Products — contact panel |
| ISO 9001 Certified and Factory Direct Pricing | Homepage — SFS series banner |
| Advanced CNC machining and precision glass processing | Homepage — manufacturing process section |
| G3.3 borosilicate glass, PTFE + Viton dual-seal system | Homepage and About Us |
| ISO 9001 certificate copies and product test reports on request | About Us — documentation FAQ |
Product Range
Everything below is built and processed at the UnionClay factory. Each family links to its category so you can check models and specifications directly.
Temperature Control Equipment
Heating and cooling systems engineered for precise temperature performance in laboratory and industrial use. View temperature control equipment.
Recirculating Chillers
Cooling support for reactors, rotary evaporators and other process equipment. View recirculating chillers.
Heating and Cooling Integrated Machines
Combined heating and cooling circulation in one unit for demanding process control. View integrated machines.
High-temperature Thermostatic Baths
Constant-temperature baths for stable high-temperature circulation. View thermostatic baths.
Glass Reactors
SFS series jacketed glass reactors, 9 models from 1L to 100L, built with G3.3 borosilicate glass and a PTFE + Viton dual-seal system. View glass reactors.
Stainless Reactors
Reactors built with corrosion-resistant 316 stainless steel for durability and high-efficiency chemical processing. View stainless reactors.
Rotary Evaporators
Vacuum rotary evaporation systems designed for fast, safe and consistent solvent recovery. View rotary evaporators.
Fermentation Tanks
Fermentation equipment supporting small-scale trials through mass production. View fermentation tanks.
Vacuum Filtration and Separation
Vacuum filtration units and glass liquid separators for separation and purification work. View vacuum filtration or glass liquid separators.
Magnetic Stirrers and Vacuum Pumps
Stirring, mixing and vacuum support equipment that completes a working setup. View magnetic stirrers or vacuum pumps.
The full catalog, including distillation equipment and lab accessories, is on the products page.
Factory Video
The video below is the same factory footage published on the About Us page, recorded at the UnionClay production base. Watch it if you want to see assembly areas and finished equipment staging before scheduling any call.
How We Support Procurement Teams
A factory page is only useful if it shortens your verification work, so here is how quotation actually runs. Before quoting, the UnionClay team reviews the product family, target capacity, temperature or vacuum range, working medium, voltage, connector needs, matching equipment and customization notes — the quote reflects your process, not just a product name. If the process needs a connected workflow, matching equipment such as reactors, chillers, circulators, vacuum pumps or filtration units is confirmed in the same review.
Common pre-purchase questions about documentation, OEM and customization are collected in the FAQ. To start an RFQ or a supplier-verification conversation, use the contact page or email directly.
If you are shortlisting suppliers, verify the factory directly: ask for a live video walk-through of the production floor, or raise an on-site visit to Zhengzhou through the contact page. ISO 9001 certificate copies and product test reports are available on request, as stated in the About Us documentation FAQ.