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Precision Lab Equipment for Modern Science

Zhengzhou Well-known Instrument & Equipment Co., Ltd. – Trusted manufacturer of rotary evaporators, glass reactors, freeze dryers, and advanced laboratory systems used across chemistry, biology, pharmaceuticals, and materials engineering.

Laboratory Equipment Setup

About Zhengzhou Well-known

Zhengzhou Well-known Instrument & Equipment Co., Ltd. is a renowned manufacturer of laboratory equipment based in central China. With a strong focus on innovation, quality, and reliability, we have become one of the most trusted brands in the scientific community.

Our product line includes rotary evaporators, glass reactors, vacuum pumps, low-temperature cooling systems, freeze dryers, and more. These instruments are widely used in research institutions, universities, pharmaceutical companies, and industrial laboratories across Asia, Europe, and the Americas.

CE Certified

Our quality management system meets international CE standards, ensuring safety and performance.

Henan Famous Trademark

Recognized as a leading brand in Henan Province for excellence in lab instrumentation.

Factory Equipment Lab Instruments Production Line Quality Inspection

Our Product Range

High-performance laboratory instruments designed for precision, durability, and ease of use in research and production environments.

Jacketed Glass Reactor

Jacketed Glass Reactor

Ideal for controlled heating/cooling reactions with double-layer insulation and precise temperature regulation.

Single Layer Glass Reactor

Single Layer Glass Reactor

Compact design for small-scale synthesis and distillation experiments with excellent visibility.

Small Benchtop Rotavapor

Small Benchtop Rotavapor

Space-saving rotary evaporator for efficient solvent removal in academic and industrial labs.

Pilot Rotary Evaporator

Pilot Rotary Evaporator

Scaled-up version for intermediate production with enhanced capacity and automation features.

Laboratory Freeze Dryer

Laboratory Freeze Dryer

Preserve biological samples, pharmaceuticals, and heat-sensitive materials with high-efficiency lyophilization.

-86°C Ultra Low Temperature Freezer

-86°C Ultra Low Freezer

Secure long-term storage for sensitive reagents, vaccines, and biological specimens.

Vertical Pressure Steam Sterilizer

Vertical Steam Sterilizer

Ensure contamination-free labware with reliable autoclaving technology and safety controls.

Circulation Heater Chiller

Circulation Heater Chiller

Precise temperature control for reactors and external systems with wide operating range.

Vacuum Pump

Vacuum Pump

High-efficiency vacuum generation for rotary evaporation, filtration, and degassing applications.

Molecular Distillation Unit

Molecular Distillation Units

Advanced purification system for heat-sensitive compounds under high vacuum conditions.

Vacuum Drying Oven

Vacuum Drying Oven

Gentle drying of moisture-sensitive materials with uniform temperature distribution.

Spray Dryer

Spray Dryer

Convert liquid feed into fine powder with high throughput and consistent particle size.

View Full Product Catalog

Why Choose Our Equipment?

CE Certified Quality

All our products meet international CE standards for safety, performance, and environmental compliance.

High Efficiency

Engineered for optimal performance, energy savings, and minimal maintenance downtime.

Global Trust

Trusted by laboratories in China, Europe, and the Americas for consistent, reliable results.

Precision Engineering

Every instrument is built with attention to detail, ensuring accuracy and repeatability.

Expert Support

Our technical team provides installation guidance, training, and after-sales service worldwide.

Wide Application

Used in chemistry, biology, pharmacy, polymer engineering, electronics, new materials, and more.

10000+
Units Sold
50+
Countries Served
15+
Years Experience
98%
Customer Satisfaction

Frequently Asked Questions

What is a rotary evaporator used for?

A rotary evaporator (rotovap) is used to gently and efficiently remove solvents from samples by evaporation under reduced pressure, commonly used in chemical and pharmaceutical labs.

Can I use your glass reactors for high-temperature reactions?

Yes, our jacketed glass reactors are designed to handle a wide temperature range, especially when paired with our circulation heater chiller units.

Do you offer OEM/ODM services?

Yes, we provide customized solutions and private labeling for bulk orders. Contact us for more details.

How do I maintain a freeze dryer?

Regular cleaning, vacuum pump oil changes, and condenser defrosting are essential. Refer to the user manual for a detailed maintenance schedule.

What certifications do your products have?

Our company holds CE Quality Management System certification, and many of our products comply with international safety and performance standards.

Get in Touch

For product inquiries, technical support, or custom solutions, reach out to our team.

+86 132 9817 7608
High-tech Zone, Zhengzhou City, Henan Province, China

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