Author

David Schmidt

HWS founding family, third generation

David Schmidt belongs to the third generation of the family behind HWS Labortechnik. A grandson of the founder, he grew up close to the Mainz workshop where HWS has developed and hand-crafted borosilicate glass apparatus since 1941. Through his work with the HWS team, he helps carry the family's eight decades of accumulated experience in laboratory glass technology forward.

Selection of HWS glass reactor models used for chemical synthesis

The Best Glass Reactor Models for Chemical Synthesis

A glass reactor for chemical synthesis combines the vessel, jacket, agitation drive, seals, and ports into a controlled system for…

2025.12.16 • 17:04 read

Custom Reactor Design

HWS dosini solid dosing unit mounted on a glass reactor

Precise Solid Dosing in Glass Reactors: Why It Matters — and How HWS’s “dosini” Sets a New Benchmark

Solid dosing may appear simple, yet it plays a central role in chemical R&D. Every time a powder, crystal, or…

2025.12.09 • 8:56 read

Stirring, Valves & Dosing

HWS bottom-outlet valve assembly for a laboratory glass reactor

Bottom-Outlet Valves in Glass Reactors: Engineering for Precision, Safety and Cleanability

When chemical engineers evaluate the performance of a glass reactor, their attention often turns to agitator design, thermal control, and…

2025.12.03 • 9:12 read

Stirring, Valves & Dosing

Troubleshooting Temperature Control: Mastering Thermal Lag and Hot Spots in Glass Reactors

In precision chemistry, temperature isn’t just a variable; it’s the conductor of the entire orchestra. When processes drift, troubleshooting temperature…

2025.11.28 • 8:46 read

Jacketed & Thermal Design

Glass reactor being cleaned as part of a cleaning validation protocol

Cleaning Validation for Glass Reactors: A Deep Dive into Cleaning Protocols

In the high-stakes world of pharmaceutical manufacturing, purity is not just a goal; it is a regulatory mandate. For laboratory…

2025.11.24 • 9:00 read

Operation & Maintenance Pharmaceutical & GMP

Range of laboratory glass reactor designs shown side by side

Beyond the Beaker: A Chemical Engineer’s Guide to Selecting the Right Glass Reactor

Reaction engineering is a balancing act. Whether you are synthesizing active pharmaceutical ingredients (APIs) or refining a new polymer, the…

2025.11.23 • 12:49 read

Borosilicate & Materials

Technician carrying out maintenance on a laboratory glass reactor

The Ultimate Glass Reactor Maintenance Checklist: Protecting Your Process (and Your Sanity)

Let’s be honest for a second: nobody goes into chemical engineering because they love scrubbing flanges or greasing joints. You…

2025.11.20 • 14:31 read

Operation & Maintenance

HWS borosilicate glass reactor system installed in a laboratory

Why Glass Reactors Still Outperform the Alternatives

For most chemical engineers, a reactor is more than just a vessel — it’s where ideas take physical form. Whether…

2025.11.13 • 8:49 read

Borosilicate & Materials

Glass reactor handling aggressive chemicals in a laboratory

Working with Aggressive Chemicals: Choosing Glass vs Other Materials

Author: HWS Mainz Laboratory Engineering TeamPublished by HWS Mainz – Specialists in Corrosion-Resistant Laboratory Glass Reactor Systems Introduction: Matching Reactor…

2025.11.11 • 9:00 read

Borosilicate & Materials

Modular glass reactor platform configured for rapid reaction development

Modular Glass Reactor Platforms for Rapid Reaction Development

Author: HWS Mainz Laboratory Engineering Team Published by HWS Mainz – Specialists in Custom Modular Glass Reactor Systems for Laboratories…

2025.11.05 • 8:23 read

Custom Reactor Design