
Manufacturer and developer of laboratory glass and technical glass apparatus as well as glass systems for research and industry.
Miethke Laborglas GmbH
Leverkusen (DE) · Production and administrationNew on Amplifa
About Miethke Laborglas
Miethke Laborglas GmbH is a manufacturer and developer of glass apparatus and systems based in Leverkusen. The company has existed since 1951 and is run in its second generation by Frank Miethke. Its product range covers laboratory glass and technical glass, in particular glass vessels and column components with and without double jackets, including accessories such as lids, heat exchangers, reflux dividers, flasks, clamp connections, gaskets and frame construction. Production is predominantly in borosilicate glass (Borofloat); in addition, stirrer seals, mechanical seal stirrer glands, V2A stainless steel adapters and plan-parallel ground glass cylinders are offered. Alongside its standard program, the company plans and manufactures custom glass products within the scope of its technical capabilities and offers consulting, frame construction and quality assurance testing. The products are used mainly in research and industry.
- Site
- Leverkusen
- Processes
- Production of glass apparatus and systems (glassblowing production), Plan-parallel grinding of glass cylinders, Manufacture of glass vessels and column components (with and without double jacket) incl., Custom manufacturing of glass products, Individual custom manufacturing, Consulting, Frame construction, Quality assurance inspection
- Materials
- Borosilicate glass (Borofloat), PEEK, Viton (optional perfluoro), Ceramic (mechanical seal), Stainless steel, Aluminum, PTFE (partly 25% glass-fiber reinforced), Graphite (flat gasket)
- Certificates
- Quality assurance inspection (in-house)
- Founded
- 1951
- Industries
- Research, Industry
- 01
Consulting and design
- 02
Engineering and custom manufacturing
- 03
Glassblowing production (glass vessels, column components, double jackets)
- 04
Machining/processing (plan-parallel grinding, stainless steel adapters)
- 05
Assembly including frame construction
- 06
Quality assurance inspection
Materials and processes
Borosilicate glass (Borofloat)
Base material for glass vessels, column components, Borofloat lids and plan-parallel ground glass cylinders.
PTFE (partly 25% glass-fiber reinforced)
Media-contacted parts, gasket sets, pressure screws and pressure guide bushings on stirrer seals.
PEEK
Media-contacted parts and housings of the mechanical seal stirrer glands.
Viton (optional perfluoro)
Shaft sealing and media contact up to a maximum service temperature of 200 °C.
Ceramic (mechanical seal)
Mechanical seal for gas-tight, abrasion-free and lubricant-free shaft sealing.
V2A stainless steel (1.4301, derived)
Stainless steel adapters, transition pieces and encapsulated ball bearings of the stirrer seals.
Aluminum
Housing material of the mechanical seal stirrer glands.
Graphite (flat gasket)
Flat gaskets DN 10 and DN 15 for stainless steel adapters.
Locations

Leverkusen
DEProduction and administration
- Materials
- Borosilicate glass (Borofloat), PTFE, Viton, ceramic, stainless steel, aluminum, glass-fiber reinforced PTFE, graphite
- Glassblowing production
- Grinding for plan-parallel glass cylinders
Components








Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of glass apparatus and systems (glassblowing production)Casting | – | – | – | – | Borosilicate glass (Borofloat) |
| Plan-parallel grinding of glass cylindersSurface | – | Diameters from 10 mm to 415 mm possible | – | – | Borosilicate glass |
| Manufacture of glass vessels and column components (with and without double jacket) incl.Casting | – | – | – | – | Borosilicate glass |
| Custom manufacturing of glass productsEngineering | – | – | – | – | – |
Additional services
Quality
All glass parts are manufactured in-house in compliance with technical and statutory requirements and subjected to a final quality assurance inspection.
| Evidence | Leverkusen |
|---|---|
| Quality assurance inspection (in-house) |
History
- 1951
Foundation of the Miethke company in Leverkusen; today run in its second generation.