TROB: The company from Rohrbach

From vision to family business.

Our family business has existed since 1984 and has been in its second generation since 2016.

Over the years, TROB has become a highly specialised company for the manufacture and distribution of precision components - from small and medium series to assemblies and individual workpieces.

We have all the technology for this in-house, plus a team of highly qualified employees.

Facts
  • Foundation: 1984
  • Employees: 50
  • Machines: 36 pieces
  • Annual turnover: 7 million EUR
  • Active customers: 375
Highest quality
Best materials
State-of-the-art technology
Excellent employees

The company history

2020/21: The brand relaunch

  • The Corona crisis is also keeping TROB busy. At the same time, the company is taking the opportunity to relaunch its brand, including a new website, to keep up with the rapid pace of digitalisation.

2020: Johannes Tröstler joins as Junior Managing Director

  • Johannes Tröstler joins as junior managing director after completing his dual mechanical engineering degree. After more than 30 years on the market, a transition to the next generation of the family business is imminent.

2016: Renewal of the office

  • At TROB, the focus of innovation is usually on the workshop and its machines. But in 2016, it was time to renovate the office space and expand it by about 30 m². This allowed us to meet current working standards better and increase the feel-good factor. 

2011-2020: Addition to the turning department

  • Commissioning of the Moriseiki NL2000 (2011) and Hembrug Microturn 100 (2020)

2010-2018: Expansion of the erosion department

  • Commissioning of the Sodick AG 40 L (2010), Sodick AG 60L (2015), Mitsubishi MP 1200 and MP 2400 (2017) and the River 600 starting hole machine (2018).

2009-2021: Upgrade of the milling department

  • Commissioning of the Alzmetall GS 650 5-T milling machine (2009), DMG HSC55 Linear (2013), Posmill CE1000 (2016), Zoller Smile 420 tool measurement (2016) as well as the Yasda YMC430 incl. Erowa robot for assembly (2021)
  • Acquisition of HyperMill software for creating milling programmes (2018)

2009-2020: Further development of quality assurance

  • Commissioning of the Mitutoyo 3D measuring machine Crysta-Apex C7106 Konturograph (2009), Mitsubishi C4500 (2016), the Laser Micrometer Z Mike 1220G (2018) and the Schneider Measuring Projector (2020)

2009-2019: Expansion of the grinding department

  • Commissioning of the Overbeck IRD 400 internal cylindrical grinding machine (2009), Wasino GLS5T (2011), Jung JE525 P (2012), Wasino GLS 150 GL (2015), Studer S41 (2015) as well as the Helitronic Advantage 400 Turbo tool grinding machine (2015)
  • Software extension: non-circular grinding for the Studer S41 (2019)
2009: Leonhard Oberbauer retires

  • Leonhard Oberbauer withdrew from the operative business and remained a partner until 2012. Johann Tröstler is now the sole managing director.

2008: 43 employees

  •  The number of employees at TROB GmbH has increased to around 43. However, the focus remains on production quality, expanding the vertical range of manufacture and customer satisfaction.
2007: Planning of the second production hall

  • Planning begins for a second production hall, ready for occupancy in the year. The production area expands by another 1,000 m² to a total of 2,100 m

1997/98: TROB remains on course for growth

  • Expansion of the range of services to include new technologies (wire and die-sinking EDM) goes hand in hand with the development of quality assurance. As a result, the production areas are expanded by a further 330 m².

1987: Revival

  • 1987: Production can be resumed with 16 employees as early as 7.1.

1986: Move to the new premises

  • TROB acquires a suitable plot of land in the Rohrbach industrial estate and manages the move at the end of the year to continue to grow.

1985: Good economic development

  • The high product quality - achieved through high-precision machines, the know-how of the company's founders and rigorous quality assurance - ensures good economic development and a constantly growing customer base. In addition, investments were made in new technologies such as surface grinding, cylindrical grinding, turning and milling, and increased staff. However, at the end of 1985, the spatial capacities on-site are exhausted.

1984: The foundation of TROB

  • Johann Tröstler and Leonhard Oberbauer take the plunge into self-employment - made the beginning of TROB's success story. The small business for optical profile grinding started in "Winden am Aign" in the market town of Reichertshofen with one employee.

The company history

2020/21: The brand relaunch

  • The Corona crisis is also keeping TROB busy. At the same time, the company is taking the opportunity to relaunch its brand, including a new website, to keep up with the rapid pace of digitalisation.
2020: Johannes Tröstler joins as Junior Managing Director

  • Johannes Tröstler joins as junior managing director after completing his dual studies (mechanical engineering). After more than 30 years on the market, a transition to the next generation of the family business is imminent.

2009 to 2020: Growth

  • TROB has continuously expanded its machinery with over 20 new acquisitions in eleven years. These include the renewal of the complete die-sinking EDM (2010: Sodick AG 40 L, 2015: Sodick AG 60L), new devices for quality control (2016: Konturograph Mitsubishi C4500, 2018: Laser Micrometer Z Mike 1220G, 2020: Schneider measuring projector), the purchase of Hypermill software for creating milling programmes, the latest machine for high-precision hard turning (2020: Hembruck Microturn 100) and 5-axis milling machines such as the Alzmetall GS 650 5T (2010) or the Yasda YMC430 (2021), which has an Erowa robot integrated for placement.
2009: Leonhard Oberbauer retires

  • Leonhard Oberbauer withdrew from the operative business and remained a partner until 2012. Johann Tröstler is now the sole managing director.

2008: 45 employees

  •  The number of employees at TROB GmbH has increased to around 45. However, the focus remains on production quality, expanding the vertical range of manufacture and customer satisfaction.
2007: Planning of the second production hall

  • Planning begins for a second production hall, ready for occupancy in the year. The production area expands by another 1,000 m² to a total of 2,100 m

1997/98: TROB remains on course for growth

  • Expansion of the range of services to include new technologies (wire and die-sinking EDM) goes hand in hand with the development of quality assurance. As a result, the production areas are expanded by a further 330 m².
1987: Restart

  • Already on 7 January, production can be resumed with 16 employees.

1986: The move to the new premises

  • TROB acquires a suitable plot of land in the Rohrbach industrial estate and manages the move at the end of the year to continue to grow.
1985: Good economic development

  • The high product quality - achieved through high-precision machines, the know-how of the company's founders and rigorous quality assurance - ensures good economic development and a constantly growing customer base. Investments are made in new technologies such as surface grinding, cylindrical grinding, turning and milling, and increased workforce. At the end of 1985, the spatial capacities on-site are exhausted.

1984: The foundation of the TROB

  • Johann Tröstler and Leonhard Oberbauer take the plunge into self-employment - made the beginning of TROB's success story. The small business for optical profile grinding started in "Winden am Aign" in the market town of Reichertshofen with one employee.

"We are the brand that offers a solution for every problem in precision manufacturing."

Johannes Tröstler, Managing Director TROB

Sustainability at TROB

For us, it is a matter, of course, to act and work economically, ecologically and socially according to values and principles that are liberal, legally compliant and ethically and morally intact.

We are continuously improving our industrial processes, while our open, family and down-to-earth corporate culture define internal and external business life.

In this way, we fulfil our customers' wishes in harmony with a responsible approach to our environment and our fellow human beings.

Facts
  • Code of Conduct: our company structures, for example, the handling of personnel, machines and materials as well as the entire waste disposal chain, are constantly being developed through the specifications of our suppliers.
  • Social commitment: Donations to social institutions such as "Families in Need
  • Sponsorships: support for local sports groups
  • Careful selection of raw material suppliers: Suppliers from Germany, Austria and Switzerland
  • Attention to supply chains: all hardening and coating partners come from Germany

Certification

Due to our striving for "precision in perfection", continuous quality assurance is our top priority.

Since October 1995, we have successfully passed every audit without interruption and received the corresponding certificate from the TÜV SÜD Management Service GmbH certification body (ISO 9001:2015). Confirmation of our work that motivates us for the future.