Ultra-high-strength fasteners and High Performance Fasteners for aerospace, motorsport, energy and defence.
Johann Maier GmbH & Co. KG
Stuttgart (Schockenriedstraße 38) · Stuttgart (secondary plant, 2nd manufacturing hall)New on Amplifa
About Johann Maier
Johann Maier GmbH & Co. KG, headquartered in Stuttgart, manufactures and tests ultra-high-strength and corrosion-resistant fasteners – bolts, screws, nuts, washers, standard parts and drawing parts according to DIN, LN, EN, ISO and NFL. The complete manufacturing process takes place in-house: from material procurement and CNC-controlled induction hot forging, heat treatment, machining on CNC turning, milling, rolling and grinding machines, through thread rolling to surface treatments. Materials processed include titanium alloys, high-strength tempered steels, precipitation-hardening stainless steels, and nickel- and cobalt-based alloys with tensile strengths up to 2100 MPa. The company specialises in small and medium series and supplies aerospace, international motorsport, oil exploration as well as the defence and security sector. An in-house metallography and materials laboratory plus aviation-documented testing facilities accompany every manufacturing step. The 195 employees produce at two manufacturing sites in Stuttgart.
- Site
- Stuttgart
- Processes
- Manufacture of High Performance Fasteners (screws, bolts, nuts, washers, standard parts,, Hot forging (CNC-controlled induction heating and forging of blanks), Heat treatment (in air or under protective gas), Machining (CNC-controlled turning, milling, rolling and grinding machines), Thread rolling (metric threads, MJ threads, inch threads), Surface treatment: anodic oxidation of titanium, solid-film lubricant on molybdenum disulfide base,, Final inspection and testing (measuring/tactile inspection equipment, CNC-controlled inspection, Material and component testing: spectral analysis, magnetic particle testing, fluorescent
- Materials
- Titanium alloy TiAl6V4, Tempered steel 30NCD16, Tempered steel E35NCD16, Tempered steel, Heat-resistant precipitation-hardening steel A286, Precipitation-hardening stainless steel 13-8 Mo, Precipitation-hardening stainless steel 17-4 PH, Precipitation-hardening stainless steel 15-5 PH
- Certificates
- ISO 9001:2015, EN 9100:2018
- Founded
- 1920
- Employees
- 195
- Industries
- Aerospace, Motorsport (DTM, Le Mans, Rally, Formula 1), Oil and gas exploration, Defence and security technology, Energy, Aviation
- 01
Material procurement and inspection
- 02
Hot forging (CNC-controlled induction heating)
- 03
Heat treatment (in air or under protective gas)
- 04
Machining (CNC turning, milling, rolling, grinding)
- 05
Thread rolling
- 06
Surface treatment
- 07
Final inspection
- 08
Material and component testing
Sites
Stuttgart (headquarters)
DEAdministration & Manufacturing
- Lot size
- Small and medium series
- Materials
- Titanium alloys, tempered steels, precipitation-hardening stainless steels, nickel and cobalt alloys,
- CNC lathes
- CNC milling machines
- Rolling and grinding machines
- CNC-controlled induction heating and forging system with press and optical pyrometer
- Heat treatment furnaces (aviation-documented)
- Spectral analysis equipment
- Static and dynamic testing machines
- Hardness testing equipment
- Metallographic preparation (cut-off, grinding and polishing machines, microscope)
Stuttgart (secondary plant)
DESecond manufacturing hall near the headquarters (opened 2018)
- Lot size
- Small and medium series
- Materials
- Titanium alloys, tempered steels, precipitation-hardening stainless steels, nickel alloys
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of High Performance Fasteners (screws, bolts, nuts, washers, standard parts,Machining | – | – | – | small and medium production runs | Titanium alloys, Tempered steels, A286, 13-8 Mo, 17-4 PH, 15-5 PH, Inconel 718, MP35N |
| Hot forging (CNC-controlled induction heating and forging of blanks)Forming | – | – | – | – | Titanium alloys, Tempered steels, Nickel alloys |
| Heat treatment (in air or under protective gas)Heat treatment | – | – | – | – | Steels, Titanium alloys, Nickel alloys |
| Machining (CNC-controlled turning, milling, rolling and grinding machines)Machining | – | – | – | – | ultra-high-strength and heat-resistant materials, Titanium alloys, Nickel-based alloys, Steels |
| Thread rolling (metric threads, MJ threads, inch threads)Forming | – | – | – | – | Steels, Titanium alloys, Nickel alloys |
| Surface treatment: anodic oxidation of titanium, solid-film lubricant on molybdenum disulfide base,Surface | – | – | – | – | Titanium, Steels, Nickel alloys, Aluminium alloys |
| Final inspection and testing (measuring/tactile inspection equipment, CNC-controlled inspectionTesting | – | – | – | – | – |
| Material and component testing: spectral analysis, magnetic particle testing, fluorescentTesting | – | – | – | – | – |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC-controlled lathes | – | – | – | – | Stuttgart |
| CNC-controlled milling machines | – | – | – | – | Stuttgart |
| Rolling and grinding machines | – | – | – | – | Stuttgart |
| CNC-controlled induction heating and forging system with press and optical pyrometer | – | – | – | – | Stuttgart |
| Heat treatment furnaces (various units, aviation-documented) | – | – | – | – | Stuttgart |
| Spectral analysis equipment | – | – | – | – | Stuttgart |
| Static and dynamic testing machines as well as hardness testing equipment | – | – | – | – | Stuttgart |
| Metallographic preparation: cut-off, grinding and polishing machines, microscope | – | – | – | – | Stuttgart |
Additional services
Reference customers
Quality & Certificates
Every product is inspected during and at the end of the manufacturing process by a quality management system according to ISO 9001:2015 and EN 9100:2018. The in-house metallography and materials laboratory includes spectral analysis, magnetic particle testing, fluorescent dye penetrant testing, static and dynamic testing machines, hardness testing as well as metallographic microstructure evaluation.
| Evidence | Stuttgart |
|---|---|
| ISO 9001:2015 | |
| EN 9100:2018 |
History
- 1920
Founded by Johann Maier; development of highly precise pliers for the re-bending process of type levers on typewriters.
- 1945
Son Albert Maier joins the company.
- 1959
Albert Maier becomes sole owner.
- 1979
Qualification and approval by Dornier and Erno for the supply of aerospace-specified titanium screws.
- 2006
Opening of a new site in Stuttgart, near the original location.
- 2018
Expansion of manufacturing with a second hall near the headquarters.