
Sheet metal processing from laser cutting to the finished assembly – 2D/3D laser cutting, laser welding, folding, bending and assembly.

Lastech AG
Mellingen (Headquarters & Plant 1) · Mellingen (Plant 2) · Mellingen (Plant 3)New on Amplifa
About Lastech AG
Lastech AG in Mellingen is a contract manufacturer specialising in sheet metal processing with over 35 years of experience and more than 50 employees. The company produces 2D and 3D laser cuts, laser welds, folding work as well as tube and profile bending, and delivers from individual components to fully assembled assemblies for machinery, plant and apparatus engineering. The machine park comprises four laser systems (including a ByCut Star 4020 with 15 kW, formats up to 4000 × 2000 mm and 25 mm thickness), automated sheet metal warehouses, three press brakes up to 320 t pressing force and 4100 mm bending length, as well as systems for mandrel bending, profile bending and roll bending. In addition, Lastech offers mechanical machining, deburring, tumble finishing, glass bead blasting and, through proven partners, metal finishing such as anodising, galvanising, powder coating or electropolishing. Materials processed are mainly steel, stainless steel, aluminium and non-ferrous metals, occasionally also plastics and wood. With three plants in Mellingen, including since July 2023 a plant for welding, straightening and assembly work, Lastech AG serves industries ranging from metal construction and vehicle manufacturing to medical technology and furniture manufacturing – from one-off pieces to large-scale series.
- Site
- Mellingen
- Processes
- 2D laser cutting, 3D laser cutting, Laser welding (3D), Folding / Bending, Tube and profile bending (mandrel bending), Roll bending (4-roll bending), Deburring / Descaling / Edge rounding, Tumble finishing (vibratory grinding)
- Materials
- Steel, Stainless steel, Aluminium, Non-ferrous metals, Plastics, Wood, 2D laser cutting, 3D laser cutting/welding
- Certificates
- ISO 9001, Re-stamping authorisation DGRL 2014/68/EU
- Employees
- more than 50
- Industries
- Metal construction, Vehicle manufacturing, Mechanical engineering, Plant & apparatus engineering, Medical technology, Metrology
- 01
Consulting & Engineering / Feasibility analysis
- 02
Laser cutting (2D/3D)
- 03
Folding / Tube and profile bending / Roll bending
- 04
Mechanical machining & joining
- 05
Finishing (deburring, blasting, finishing via partners)
- 06
Welding, straightening and assembly work
- 07
Logistics & delivery
Materials & Processes
2D laser cutting
Four systems produce sheet metal blanks up to 4000 × 2000 mm and max. 25 mm thickness, with fully automatic loading.
3D laser cutting/welding
3D systems with rotary axis process complex parts and tubes up to 12 mm thickness and carrier lengths up to 8000 mm.
Folding
Three press brakes (40–320 t, bending lengths up to 4100 mm) with angle measuring system for precise bending shapes.
Tube and profile bending
Mandrel bending and profile bending machines for round tubes up to Ø 60.3 mm and workpiece heights up to 300 mm.
Finishing (deburring, tumble finishing, glass bead blasting)
In-house systems for edge rounding up to R3, vibratory grinding and customised surface qualities.
Assembly / Assembly production
Assembly of delivered and in-house parts into complete assemblies in the specialised Plant 2.
Locations

Mellingen, Birrfeldstrasse 35
CHHeadquarters & Plant 1 (Production)
- Lot size
- One-off pieces to large-scale series
- Materials
- Steel, stainless steel, aluminium, non-ferrous metals
- ByCut Star 4020 (15 kW)
- Bystar Fiber 4020
- Bystar CO2 3015
- Rapido Evoluzione 3D
- Laser Next
- FMG sheet metal warehouse compact-tower
- Bystronic Bycell Cross
- Press brake Xpert 320
- Press brake Xpert 150
- Press brake Xpert 40
- Mandrel bending machine RB 60 FK CNC
- Profile bending machines PBT 25 / PBT 35
- 4-roll roll bending machine
- Timesavers 42 Series
- Walther Trowal CF400
- Glass bead blasting systems
Mellingen, Bahnhofstrasse 72
CHPlant 2 – Welding, straightening and assembly work
- Materials
- Steel, stainless steel, aluminium
- Modernly equipped workstations for flexible assembly production
Mellingen, Gheidstrasse 29
CHPlant 3
Components & Industries



Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 2D laser cuttingMachining | – | 4000 mm × 2000 mm | – | One-off piece – Large-scale series | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| 3D laser cuttingMachining | – | 8000 mm × 1500 mm × 600 mm | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Laser welding (3D)Joining | – | 8000 mm | – | – | Steel, Stainless steel, Aluminium |
| Folding / BendingForming | – | 4100 mm | – | One-off piece – Large-scale series | Steel, Stainless steel, Aluminium |
| Tube and profile bending (mandrel bending)Forming | – | – | – | – | Steel, Stainless steel, Aluminium |
| Roll bending (4-roll bending)Forming | – | 2000 mm | – | – | Steel, Stainless steel, Aluminium |
| Deburring / Descaling / Edge roundingSurface | Edge rounding up to R3 | 1350 mm | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals, Plastic |
| Tumble finishing (vibratory grinding)Surface | – | 200 mm × 200 mm × 200 mm | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Glass bead blastingSurface | – | 1500 mm × 900 mm × 800 mm | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Mechanical machining (drilling, reaming, milling, countersinking, thread cutting)Machining | – | – | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Stud welding / Press-fitting / Flow drillingJoining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Assembly / Assembly productionAssembly | – | – | – | One-off piece – Large-scale series | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Grinding and polishingSurface | – | – | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Metal finishing (anodising, galvanising, electroplating, wet painting, powder coating, pickling,Surface | – | – | – | – | Steel, Stainless steel, Aluminium, Non-ferrous metals |
| Consulting & Engineering / Feasibility analysis / Design optimisationEngineering | – | – | – | – | – |
| Logistics (customer-specific warehousing)Engineering | – | – | – | – | – |
18 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 2D laser cutting system | Bystronic ByCut Star 4020 - F15000 | 1 | 4000 x 2000 mm, max. 25 mm, 15 kW | – | Mellingen |
| 2D laser cutting system (fiber) | Bystronic Bystar Fiber 4020 | 1 | 4000 x 2000 mm, 10 kW | – | Mellingen |
| 2D laser cutting system (CO2) | Bystronic Bystar CO2 3015 | 1 | 3000 x 1500 mm, max. 25 mm, 4.4 kW | – | Mellingen |
| Sheet metal warehouse | FMG Sheet metal warehouse compact-tower | 1 | max. 4000 x 2000 mm, 50 places à 3000 kg | – | Mellingen |
| Sheet metal warehouse | Bystronic Bycell Cross | 1 | max. 3000 x 1500 mm, 60 places à 3000 kg | – | Mellingen |
| 3D laser cutting and welding system (CO2) | Rapido Evoluzione 3D | 1 | 4000 x 1500 x 600 mm (carriers up to 8000 mm), 4 kW, max. 12 mm | – | Mellingen |
| 3D fiber laser system with rotary axis (tube/profile) | Laser Next | 1 | 3670 x 1630 x 720 mm, 4 kW, max. 12 mm | – | Mellingen |
| Press brake | Bystronic Xpert 320 | 1 | 320 t, bending length 4100 mm | – | Mellingen |
| Press brake | Bystronic Xpert 150 | 1 | 150 t, bending length 3100 mm | – | Mellingen |
| Press brake | Bystronic Xpert 40 | 1 | 40 t, bending length 1030 mm | – | Mellingen |
| Mandrel bending machine | RB 60 FK CNC | 1 | Round tubes up to Ø 60.3 mm; square tubes up to 30 x 30 x 2 mm | – | Mellingen |
| Profile bending machine | PBT 25 | 1 | Workpiece height up to 300 mm | – | Mellingen |
| Profile bending machine | PBT 35 | 1 | Workpiece height up to 300 mm | – | Mellingen |
| 4-roll roll bending machine | – | 1 | Sheet width 2000 mm, sheet thickness up to 15 mm, top roll Ø 240/200 mm | – | Mellingen |
| Deburring machine | Timesavers 42 Series | 1 | Belt width 1350 mm, 3 workstations | – | Mellingen |
| Tumble finishing machine (vibratory finishing system) | Walther Trowal CF400 | 1 | Part size approx. 200 x 200 x 200 mm | – | Mellingen |
| Glass bead blasting system | – | 1 | Parts max. 600 x 500 x 300 mm | – | Mellingen |
| Glass bead blasting system (crane-accessible) | – | 1 | Working space 1500 x 900 x 800 mm | – | Mellingen |
Additional services
Quality & Certification
Lastech AG has been ISO 9001 certified for many years. Material certificates and manufacturer certificates of origin are required and, on request, supplied along with the goods to ensure traceability.
| Evidence | Mellingen |
|---|---|
| ISO 9001 | |
| Re-stamping authorisation DGRL 2014/68/EU |
History
- 2023
Commissioning of the new Lastech Plant 2 for welding, straightening and assembly work (Bahnhofstrasse 72, Mellingen) in July 2023.