Contract heat treatment shop for heat treatment of steel, castings and non-ferrous metals: gas nitriding, nitrocarburizing, annealing and hardening processes
Härtetechnik Troll GmbH
63857 Waldaschaff (DE) · Am Heerbach 11New on Amplifa
About Härtetechnik Troll
Härtetechnik Troll GmbH is a contract heat treatment company based in Waldaschaff (Bavaria) that treats components made of steel, castings and non-ferrous metals. The service portfolio includes gas nitriding, nitrocarburizing, nitrocarburizing with oxidation, the Systemprotektor process N+OX 250 as an ecological alternative to electroplated coatings, oxidation, annealing with and without protective gas as well as classical hardening processes such as case hardening, flame hardening of small parts, and hardening and tempering of parts up to 1200 mm in length. Production takes place on six processor-controlled retort furnaces with modern control and sensor technology, usually in gentle single-batch charging; the theoretical nitriding weekly capacity is 80,000 kg. In addition, the company offers parts cleaning, glass bead blasting, a metallurgical laboratory with hardness testing, metallography, layer thickness measurement and failure analysis, as well as inspection certificates according to DIN 10204. The quality management system is certified to ISO 9001:2015; a maximum delivery time of three working days is targeted, including an in-house delivery service and just-in-time logistics nationwide and throughout Europe.
- Site
- Waldaschaff
- Processes
- Gas nitriding, Nitrocarburizing, Nitrocarburizing + Oxidation, N+OX 250, Oxidation, Annealing (with protective gas), Annealing without protective gas (hearth car furnace, up to 700 °C), Classical hardening processes (small furnaces up to 1150 °C)
- Materials
- Steel, Castings, Non-ferrous metals, Gas nitriding, Nitrocarburizing, Systemprotektor N+OX 250, Annealing (with/without protective gas), Classical hardening processes (case hardening, hardening and tempering)
- Certificates
- ISO 9001:2015, ISO 9001:2015 (DEKRA)
- Founded
- 1987
- Industries
- Mechanical engineering, Casting and steel processing, Automotive supply (general), Steel, Casting, Non-ferrous metals
- 01
Parts cleaning (intensive spray cleaning system)
- 02
Heat treatment (gas nitriding, nitrocarburizing, annealing, hardening processes)
- 03
Oxidation / N+OX 250 (corrosion protection)
- 04
Glass bead blasting
- 05
Testing in the metallurgical laboratory
- 06
Packaging and shipping (own vehicle fleet / freight forwarder)
Processes and Materials
Gas nitriding
Thermochemical hardening process for producing wear-resistant nitride layers, usually in gentle single-batch charging.
Nitrocarburizing
Combined diffusion process for high wear and fatigue strength of the component surface.
Systemprotektor N+OX 250
Ecological alternative to electroplated coatings for design-oriented corrosion protection.
Annealing (with/without protective gas)
Stress-relief and recrystallization annealing up to 700 °C in the hearth car furnace or with protective gas in retort furnaces.
Classical hardening processes (case hardening, hardening and tempering)
Hardening processes in small furnaces up to 1150 °C, hardening and tempering of components up to 1200 mm in length, with protective paste masking.
Waldaschaff Site
Waldaschaff
DEHeadquarters and production site
- Part weight / size
- Maximum load up to 5.000 kg per batch
- Lot size
- Single-batch charging up to series quantities
- Materials
- Steel, castings, non-ferrous metals
- 6 processor-controlled retort furnaces (Ø 700 × 1350 mm, Ø 700 × 1800 mm, Ø 1600 × 2500 mm)
- Hearth car furnace for annealing without protective gas (2500 × 1000 × 2000 mm, up to 700 °C)
- Small chamber furnaces for hardening processes up to 1150 °C (650 × 450 × 300 mm)
- Intensive spray cleaning system (aqueous, 8 bar, 1700 × 1700 × 800 mm)
- Glass bead blasting double-chamber system (500 × 500 × 1800 mm)
- Metallurgical reflected-light microscope Zeiss
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Gas nitridingHeat treatment | – | – | – | – | Steel, Castings, Non-ferrous metals |
| NitrocarburizingHeat treatment | – | – | – | – | Steel, Castings, Non-ferrous metals |
| Nitrocarburizing + OxidationHeat treatment | – | – | – | – | Steel, Castings, Non-ferrous metals |
| N+OX 250Heat treatment | – | – | – | – | – |
| OxidationSurface | – | – | – | – | – |
| Annealing (with protective gas)Heat treatment | – | 2500 mm × 1600 mm × 2500 mm | 5000 kg | – | Steel, Castings, Non-ferrous metals |
| Annealing without protective gas (hearth car furnace, up to 700 °C)Heat treatment | – | 2500 mm × 1000 mm × 2000 mm | – | – | Steel, Castings, Non-ferrous metals |
| Classical hardening processes (small furnaces up to 1150 °C)Heat treatment | – | 650 mm × 450 mm × 300 mm | – | – | Steel |
| Hardening and tempering (up to length 1200 mm)Heat treatment | – | 1200 mm | – | – | Steel |
| Case hardeningHeat treatment | – | – | – | – | Steel |
| Flame hardening of small partsHeat treatment | – | – | – | – | Steel |
| Parts cleaning (intensive spray cleaning system, aqueous, 8 bar)Surface | – | 1700 mm × 1700 mm × 800 mm | – | – | – |
| Glass bead blastingSurface | – | 1800 mm × 500 mm × 500 mm | – | – | – |
| Metallurgical laboratory: hardness testing, metallography, layer thickness measurement, hardnessTesting | – | – | – | – | – |
| Systemprotektor N+OX (corrosion protection, alternative to electroplated coatings)Surface | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Nitriding furnace (processor-controlled retort furnace) | – | 6 | Ø 700 mm x 1350 mm; Ø 700 mm x 1800 mm; Ø 1600 mm x 2500 mm | – | Waldaschaff |
| Retort furnace for annealing with protective gas | – | – | Ø 700 mm x 1350 mm; Ø 700 mm x 1800 mm; Ø 1600 mm x 2500 mm | – | Waldaschaff |
| Hearth car furnace (annealing without protective gas, up to 700 °C) | – | 1 | 2500 x 1000 x 2000 mm | – | Waldaschaff |
| Small chamber furnace (classical hardening processes, up to 1150 °C) | – | various | 650 x 450 x 300 mm | – | Waldaschaff |
| Intensive spray cleaning system (aqueous, 8 bar) | – | 1 | 1700 x 1700 x 800 mm | – | Waldaschaff |
| Glass bead blasting double-chamber system | – | 1 | 500 x 500 x 1800 mm | – | Waldaschaff |
| Metallurgical reflected-light microscope | Zeiss | 1 | – | – | Waldaschaff |
Additional services
Quality and Testing
Quality management as corporate management in the segments of quality, safety and environment; certified to ISO 9001:2015 (continuously since 1999, DEKRA). Own metallurgical laboratory with hardness testing, hardness depth profile measurement, metallography, microhardness testing, layer thickness measurement and failure analysis, as well as inspection certificates according to DIN 10204 – 2.2 and 3.1.
| Evidence | Waldaschaff |
|---|---|
| ISO 9001:2015 (DEKRA) |
Company History
- 1987
Company founded
- 1991
Site in Waldaschaff
- 1999
First certification to ISO 9001 by DEKRA; certified continuously ever since