
Surface technology in Asten: blackening to DIN 50938, blasting technology, Cerakote coatings, laser engraving and trolley repair
Hanz GmbH
Bahnhofstraße 8, 4481 Asten (AT) · Headquarters, production and goods receiptNew on Amplifa
About Hanz Technik
Hanz Technik is the surface technology brand of Hanz GmbH in Asten near Linz, Upper Austria. The company finishes iron and steel components, focusing on blackening to DIN 50938 through chemical conversion of the surface. In addition, blasting technology with chrome-nickel grit, glass beads and corundum, Cerakote and high-temperature coatings (C-Series) as well as laser marking, laser engraving and 2.5 D laser deep engraving on a Trotec system are offered. The coordination of material, preparation and post-treatment takes place personally per component; work is carried out on single parts through to series production. The offering also includes the repair of picking and trolleys including straightening, roller replacement and welding, as well as goods receipt, packaging and B2B shipping. Hanz GmbH is part of the Hanz Group with the brands Hanz Technik, Hanz Arms, Das Schießzentrum and Das Waffengeschäft.
- Site
- Asten, Austria
- Processes
- Blackening (DIN 50938, chemical conversion), Blasting with chrome-nickel grit, Glass bead blasting, Corundum blasting (cleaning and rough blasting), Cerakote coating, Cerakote C-Series high-temperature coating, High-temperature coatings, Laser marking
- Materials
- Unalloyed and low-alloy steels, Cast iron materials, Iron, Stainless steel (not blackenable), Non-ferrous metals, Suitable dark plastics (laser engraving), Stainless steel, Plastic (dark, suitable)
- Certificates
- Blackening to DIN 50938, ISO 9001
- Industries
- Mechanical engineering, Metal processing, Intralogistics, Firearms and arms manufacturing, Firearms/arms manufacturing (Hanz Group context), Intralogistics (picking trolleys)
- 01
Inquiry (material, drawing, requirements)
- 02
Coordination of preparation, process and schedule
- 03
Surface treatment (blackening, blasting, coating, laser)
- 04
Inspection, packaging
- 05
Goods receipt and B2B shipping
Materials & Processes
Unalloyed and low-alloy steels
Main materials for blackening to DIN 50938; billing by weight.
Cast iron materials
Suitable cast iron parts can be blackened after material testing.
Iron
Iron components are blasted and blackened.
Stainless steel
Not intended for blackening, but can be processed via blasting technology.
Non-ferrous metals
Suitable non-ferrous metals are blasted with chrome-nickel grit, glass beads or corundum.
Plastic (dark, suitable)
Suitable dark plastics are considered for laser engraving and marking after inspection.
Locations

Asten
ATHeadquarters, production and goods receipt (surface technology)
- Lot size
- Single parts to series
- Materials
- Steel, iron, cast iron, non-ferrous metals, suitable plastics
- Blackening tank 780×470×750 mm
- Blackening tank 2000×500×400 mm
- Blasting system 1200×800×800 mm
- Trotec laser system (marking, engraving, 2.5 D deep engraving)
Typical Components






Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Blackening (DIN 50938, chemical conversion)Surface | – | 2000 mm × 500 mm × 750 mm | – | Single parts – Series | Unalloyed steels, Low-alloy steels, Cast iron materials |
| Blasting with chrome-nickel gritSurface | – | 1200 mm × 800 mm × 800 mm | – | – | Iron, Steel, Non-ferrous metals |
| Glass bead blastingSurface | – | 1200 mm × 800 mm × 800 mm | – | – | Metals |
| Corundum blasting (cleaning and rough blasting)Surface | – | 1200 mm × 800 mm × 800 mm | – | – | Metals |
| Cerakote coatingSurface | – | – | – | – | Metals |
| Cerakote C-Series high-temperature coatingSurface | – | – | – | – | Metals |
| High-temperature coatingsSurface | – | – | – | – | – |
| Laser markingSurface | – | – | – | – | Metals, Plastics (suitable dark) |
| Laser engravingSurface | – | – | – | – | Metals, Plastics (suitable dark) |
| 2.5 D laser deep engravingSurface | – | – | – | – | Metals, Plastics (suitable dark) |
| Repair of picking trolleys (straightening, roller replacement, welding of grid bars)Assembly | – | – | – | – | Steel |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Blackening tank 1 | – | 1 | 780 × 470 × 750 mm (L×W×D) | – | Asten, Austria |
| Blackening tank 2 | – | 1 | 2000 × 500 × 400 mm (L×W×D) | – | Asten, Austria |
| Blasting system | – | 1 | 1200 × 800 × 800 mm (L×W×H) | – | Asten, Austria |
| Laser system (laser marking, engraving, 2.5 D deep engraving) | Trotec | 1 | – | – | Asten, Austria |
Additional services
Manufacturing & Coordination
Material, preparation, masking, contact points and post-treatment are clarified in advance in the personal coordination process; inspection scope, packaging and handover date are agreed per order. Blackening is carried out to DIN 50938 unless otherwise agreed in writing.
| Evidence | Asten |
|---|---|
| Blackening to DIN 50938 | |
| ISO 9001 |
Hanz Group
- 2027
The Hanz Group shooting center in Haag is under construction; opening is planned for mid-2027.