Manufacturer of electron beam systems for welding, hardening and drilling, plus EB contract manufacturing from prototype to series production
PTR Strahltechnik GmbH
Langenselbold (DE) · Maisach (DE, GBT Group) · Enfield (USA, GBT Group) · Beijing (CN, GBT Group)New on Amplifa
About PTR Strahltechnik
PTR Strahltechnik GmbH, headquartered in Langenselbold near Frankfurt am Main, is a medium-sized company in the field of electron beam technology. The company develops and manufactures EB systems for welding, hardening and drilling and additionally offers contract manufacturing from prototypes to series runs of over 100,000 parts per year. Its range of services includes electron beam welding in vacuum with weld depths of over 200 mm, EB welding at atmospheric pressure (NVEBW), flying EB drilling at up to 3,000 holes per second, local surface modification (hardening, remelting, contouring) as well as laser welding at reduced pressure. Processing is performed on almost all metallic materials, from aluminium via titanium and copper to hard-to-weld materials such as Zircaloy or tungsten. PTR is part of Global Beam Technologies AG (GBT), which also includes Steigerwald Strahltechnik GmbH in Maisach and PTR Precision Technologies Inc. in Enfield (USA). The company traces its origins to the EB welding department of Leybold-Heraeus in Hanau and has developed more than 600 EB systems for the world market to date. Customer segments include automotive, aerospace, machinery and plant engineering, energy technology, defence technology and medical technology.
- Site
- Langenselbold
- Processes
- Electron beam welding, EB welding at atmospheric pressure (NVEBW), Drilling with the electron beam (flying drilling, up to 3,000 holes per second), Surface treatment / local surface modification (surface layer treatment: hardening, remelting,, EB hardening, Laser welding in vacuum/reduced pressure, Heat treatment, Demagnetization
- Materials
- Aluminium, Titanium, Copper, Zircaloy, Silver, Gold, Beryllium, Cadmium
- Certificates
- ISO 9001:2015, DIN 2303 Q2 & Q4 BK1 (defence technology), DNVGL-CP-0352 (welding of shipbuilding components), AD 2000 data sheet HP 0, EN ISO 3834-2, EN 15085-2 CL1 (railway approval), DNVGL-CP-0352 (shipbuilding)
- Employees
- 70
- Industries
- Automotive, Aerospace, Machinery and plant engineering, Electrical industry, Defence technology, Railway technology
- 01
Consulting on component design and material selection
- 02
Application laboratory / process engineering studies
- 03
Machine and process development
- 04
System manufacturing (EBOMAT, universal and production systems)
- 05
Commissioning and training
- 06
Contract manufacturing (EB welding, drilling, hardening)
- 07
Testing and quality assurance
- 08
After Sales Service, maintenance, modernization
Materials & Processes
Electron beam welding
Joining of metallic materials with a narrow seam, minimal distortion and weld depths of over 200 mm in a single pass.
EB welding at atmospheric pressure
EB welding at atmospheric pressure, primarily for aluminium components such as cockpit crossmembers.
EB drilling (flying drilling)
Highly reproducible drilling in all metallic materials at up to 3,000 holes per second.
EB hardening / surface treatment
Local surface layer treatment through hardening, remelting and contouring of metallic component surfaces.
Laser welding in vacuum
Reduced-pressure laser welding doubles the weld depth compared to atmospheric pressure at the same laser power.
Aluminium
EB-weldable even despite the oxide layer, e.g. for cockpit crossmembers.
Titanium
Welding in vacuum delivers excellent metallurgical results for reactive materials.
Copper
The high beam power overcomes the high thermal conductivity that limits other processes.
Zircaloy / Zirconium
A difficult-to-weld material that can be processed using the EB vacuum process.
Refractory metals (tungsten, molybdenum, tantalum)
Hard-to-weld high-temperature materials are joined using the EB process.
Steel
Metallic steel materials, e.g. for transmission components and turbochargers.
Locations
Langenselbold
DEHeadquarters, production, sales, service and contract manufacturing
- Lot size
- Prototype to over 100,000 parts/year
- Materials
- Aluminium, titanium, copper, Zircaloy, steel, refractory metals, precious metals
- EBOMAT electron beam systems (0–60 kV, up to 30 kW)
- Small chamber systems (15–500 l)
- Large chamber systems (600–10,000 l)
- Round indexing table cycling systems
- Atmospheric pressure systems (Nonvac, NVEBW)
- LASVAC PL 01 laser welding machine
- LASVAC PL 02 laser welding machine
Maisach
DESister company Steigerwald Strahltechnik GmbH (GBT Group)
Enfield
USASister company PTR Precision Technologies Inc. (GBT Group)
Beijing
CNGBT Group location
Components & Applications
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electron beam weldingJoining | – | – | – | Prototype – over 100,000 parts per year | – |
| EB welding at atmospheric pressure (NVEBW)Joining | – | – | – | – | Aluminium |
| Drilling with the electron beam (flying drilling, up to 3,000 holes per second)Joining | – | – | – | – | metallic materials |
| Surface treatment / local surface modification (surface layer treatment: hardening, remelting,Heat treatment | – | – | – | – | metallic materials |
| EB hardeningHeat treatment | – | – | – | – | – |
| Laser welding in vacuum/reduced pressureJoining | – | – | – | – | – |
| Heat treatmentHeat treatment | – | – | – | – | – |
| DemagnetizationSurface | – | – | – | – | – |
| VT testing (visual inspection)Testing | – | – | – | – | – |
| PT testing (dye penetrant testing)Testing | – | – | – | – | – |
| UT testing (ultrasonic testing)Testing | – | – | – | – | – |
| Helium leak testingTesting | – | – | – | – | – |
| Water pressure testingTesting | – | – | – | – | – |
| Metallography (specimen preparation)Testing | – | – | – | – | – |
| Hardness measurement (per Vickers)Testing | – | – | – | – | – |
| Machine and process development / project and process development (application laboratory)Engineering | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Electron beam system (EBOMAT series, modular, with high voltage 0-60 kV up to 30 kW) | PTR Strahltechnik EBOMAT | – | – | – | Langenselbold |
| Small chamber system (volume 15-500 l) | PTR Strahltechnik | – | Chamber volume 15-500 l | – | Langenselbold |
| Large chamber system (volume 600-10,000 l) | PTR Strahltechnik | – | Chamber volume 600-10,000 l | – | Langenselbold |
| Round indexing table cycling system | PTR Strahltechnik | – | – | – | Langenselbold |
| Atmospheric pressure system (Nonvac, NVEBW) | PTR Strahltechnik | – | – | – | Langenselbold |
| Laser beam welding machine for reduced pressure | PTR Strahltechnik LASVAC PL 01 | – | – | – | Langenselbold |
| Laser beam welding machine for reduced pressure | PTR Strahltechnik LASVAC PL 02 | – | – | – | Langenselbold |
Additional services
Reference customers
Quality & Certifications
PTR is a certified welding specialist per ISO 9001:2015 with numerous industry-specific regulations. Contract manufacturing offers VT, PT and UT testing, helium leak testing, water pressure testing, metallography and Vickers hardness measurement.
| Evidence | Langenselbold |
|---|---|
| ISO 9001:2015 | |
| EN ISO 3834-2 | |
| EN 15085-2 CL1 (railway approval) | |
| DIN 2303 Q2 & Q4 BK1 (defence technology) | |
| DNVGL-CP-0352 (shipbuilding) | |
| AD 2000 data sheet HP 0 |
History
- 1952
Karl-Heinz Steigerwald builds the first electron beam processing machine; the birth of EB technology.
- 1963
Foundation of Steigerwald Strahltechnik GmbH.
- 2005
Merger of Steigerwald Strahltechnik and the PTR Group to form Global Beam Technologies AG.
PTR in Langenselbold emerged from the EB welding department of Leybold-Heraeus (Hanau); over 55 years of experience and more than 600 EB systems developed.