
CNC sheet-metal and metal processing in steel, stainless steel and aluminium, wastewater valves and welded assemblies for industry.
GLA-WEL GmbH
49324 MelleNew on Amplifa
About GLA-WEL
GLA-WEL GmbH in Melle is an owner-managed, medium-sized family business of the Glahs and Welkener owner families and has been producing metal products in steel, stainless steel and aluminium since 1996. The focus is on CNC-controlled sheet-metal and metal processing with a high level of in-house production depth: 2D laser cutting up to 25 mm sheet thickness in a 4×2 m format, bending up to 4 m length, joining and welding with 40 welding specialists, machining, grinding and deburring as well as glass bead blasting in a blasting cabin with a 7×2 m working area. The company manufactures individual parts and complete welded assemblies in single-item and series production, complemented by design, development and assembly. Its own product portfolio includes valves for water and wastewater engineering such as slide gates, sluice gates, flaps, backflow prevention flaps, stop logs and flood protection elements in stainless steel and HDPE, as well as dog transport boxes and transport trailers in aluminium and stainless steel. Customers come from mechanical engineering, construction, food production, chemicals and pharmaceuticals, water and wastewater engineering, as well as the public sector; deliveries are made across Germany and Europe. The site comprises around 9,000 m² of production floor space with more than 650 pallet positions for material stock.
- Site
- Melle
- Processes
- Laser cutting (2D laser cutting), Laser cutting up to 25 mm, Bending and forming (press brake bending), Joining and welding (complete manufacture of welded assemblies), Machining (CNC-controlled processing), Grinding and deburring (machine and manual, grit sizes up to K320), Surface treatment – glass bead blasting, CNC sheet-metal and metal processing
- Materials
- Steel, Corten steel, Stainless steel, Stainless steel (duplex), Aluminium, HDPE (plastic for valves), NBR (sealing material), EPDM (sealing material)
- Certificates
- DIN EN ISO 9001:2015, DIN EN 1090-2 EXC2 (factory production control), DIN EN 12195 (tests for load securing/strength of vehicle built-in components,, ISO 9001, EN 1090, IATF 16949, ISO 14001
- Founded
- 1996
- Industries
- Mechanical engineering, Construction companies, Food production, Chemicals and pharmaceuticals, Water and wastewater engineering, Public sector
- 01
Design and development
- 02
Cutting (sawing, laser cutting)
- 03
Bending and forming
- 04
Welding and joining
- 05
Machining, grinding and deburring
- 06
Glass bead blasting
- 07
Assembly
- 08
Quality inspection and shipping
Materials & Processes
Steel
Base material for the manufacture of sheet-metal and welded assemblies for mechanical engineering and construction.
Corten steel
Weather-resistant structural steel for steles and design elements in outdoor areas.
Stainless steel 1.4301
Corrosion-resistant stainless steel for valves in wastewater treatment plants.
Stainless steel 1.4404
High-grade stainless steel for aggressive and saline environments.
Stainless steel (duplex) 1.4462
Duplex stainless steel for saline and extreme environments such as seawater.
Stainless steel 1.4571
Acid-resistant stainless steel for demanding valve applications.
Aluminium
Material of aluminium processing, among other things for dog transport boxes and valves.
HDPE
Plastic for valves in wastewater engineering.
NBR
Sealing material with high abrasion resistance for moderate temperatures.
EPDM
Sealing material for temperature ranges from -40 °C to +140 °C.
Viton®
High-grade sealing material for use in extreme environments.
Locations

Melle
DEHead office, administration, production
- Lot size
- Single-item and series production
- Materials
- Steel, stainless steel, aluminium, HDPE
- 2-D flatbed laser cutting machines LVD (2 new machines in 2023)
- CNC-controlled press brakes LVD (bending up to 4 m)
- Weber deburring machines PT-1350 and TTSC-1100
- Blasting cabin for glass bead blasting 7 × 2 m
- 40 welding specialists, welding workstations
- Machining centre
- Saw (cutting)
- 650 pallet positions in the material warehouse
Components & Products









Inside the production








Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cutting (2D laser cutting)Machining | – | 4000 mm × 2000 mm | – | Single-item and series production | Steel, Stainless steel, Aluminium |
| Laser cutting up to 25 mmMachining | – | 4000 mm × 2000 mm | – | – | Steel, Stainless steel, Aluminium |
| Bending and forming (press brake bending)Forming | – | 4 m | – | – | Steel, Stainless steel, Aluminium |
| Joining and welding (complete manufacture of welded assemblies)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Machining (CNC-controlled processing)Machining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Grinding and deburring (machine and manual, grit sizes up to K320)Surface | – | 1350 mm | – | – | Steel, Stainless steel, Aluminium |
| Surface treatment – glass bead blastingSurface | – | 7 m × 2 m | – | – | Steel, Stainless steel, Aluminium |
| CNC sheet-metal and metal processingMachining | – | – | – | Single-item and series production, made | Steel, Stainless steel, Aluminium |
| Steel processingMachining | – | – | – | – | Steel, Corten steel |
| Custom stainless steel construction (Home & Garden)Assembly | – | – | – | – | Stainless steel |
| Aluminium processingMachining | – | – | – | – | Aluminium |
| Design and developmentEngineering | – | – | – | – | – |
| AssemblyAssembly | – | – | – | – | – |
| Manufacture of valve bodies (slide gates, sluice gates, flaps, backflow prevention flaps,Assembly | – | up to several metres × up to several metres | – | – | Stainless steel (1.4301, 1.4404, 1.4462), Aluminium |
| Manufacture of valve bodiesAssembly | – | – | – | – | Stainless steel, Aluminium |
| Stop-log gates / stop logs / mobile flood protectionAssembly | – | – | – | – | Steel, Stainless steel |
| HDPE valves (manufacturing)Assembly | – | – | – | – | HDPE (plastic) |
| Tank/basin equipment & pipe fittingsAssembly | – | – | – | – | Stainless steel |
| Repairs, maintenance & inspectionAssembly | – | – | – | – | – |
| Dog transport boxes in aluminium and stainless steelAssembly | – | – | – | – | Aluminium, Stainless steel |
| Turning and milling parts manufacturingMachining | – | – | – | – | Stainless steel |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 2-D flatbed laser cutting machine | LVD | – | Laser cutting up to 25 mm and 4×2 m | – | Melle |
| Laser cutting machine | LVD | 2 | – | 2023 (Neua | Melle |
| CNC-controlled press brake (bending machine) | LVD | – | Bending up to 4 m length | – | Melle |
| Grinding machine / deburring machine | Weber Maschinenfabrik PT-1350 | – | Working width 1350 mm, 2 grinding stations, 1 deburring station, workpiece passage 0.8–100 mm | – | Melle |
| Grinding machine / deburring machine | Weber Maschinenfabrik TTSC-1100 | – | Working width 1100 mm, 1 grinding station, 1 deburring station, workpiece passage 0.8–100 mm | – | Melle |
| Blasting cabin (glass bead blasting) | – | – | Working area 7 × 2 m | – | Melle |
| Machining centre | – | – | – | – | Melle |
| Saw (cutting) | – | – | – | – | Melle |
| Welding workstations (40 welding specialists, DIN EN 1090 certified) | – | 40 (Schwei | – | – | Melle |
Additional services
Quality & Certification
Processes are regularly audited and certified in accordance with DIN EN 1090 and DIN EN ISO 9001. Tested welding procedures and 40 welding specialists, along with various technical inspection methods in production, ensure consistent product quality.
| Evidence | Melle |
|---|---|
| ISO 9001 | |
| EN 1090 | |
| IATF 16949 | |
| ISO 14001 |
History
- 1996
Founding of GLA-WEL GmbH; owner-managed family business of the Glahs and Welkener owner families
- 2016
First issue of the DIN EN 1090 certificate on 15.01.2016
- 2018
First GenerationenWerkstatt (intergenerational workshop) with students of Lindenschule Melle-Buer
- 2023
Two new laser cutting machines (LVD) with 50 % lower power consumption; second GenerationenWerkstatt
- 2024
Installation of a photovoltaic system; exhibition at IFAT Munich
- 2025
Renewed DIN EN ISO 9001 certificate (12/2023–12/2026); exhibitions DAT Dresden and iro Oldenburger Rohrleitungsforum
- 2026
Marc Dralle appointed Managing Director as of 01.02.2026; third GenerationenWerkstatt