_ Aviation | Holzer Firmengruppe


Flying is not only a dream come true for  mankind  but also an essential factor in the age of globalisation. The aviation industry is an innovative and significant high-tech industry that plays an essential role in the world of business and technology in Germany.


For years, the HOLZER Corporate Group has been supporting the aviation industry as a production and development partner.


With the production of high-precision components - if necessary over night - we contribute significantly to our customers' success.

Design and development
Engine Design
Manufacture and Assembly
Quality control
Service Center

We make success order able.

Our performances in the field of aviation

These customers trust us

  • Design and development
  • Manufacture and Assembly
  • Mechanical and Engine Engineering
  • Quality control
  • Logistics
  • Service Center

We are an internationally active, innovative full service company with:

  • 10,000 m² of office and production space
  • DIN ISO 9001 : 2015  certified
  • QSF-A certified (certified company for aviation, aerospace and supply industry)


As an innovative full service enterprise we perform all phases in the engineering process from the first concept down to the finished product. Professional success lies at the centre of our long-standing and mutually beneficial customer relationships termed partnerships by our company.


From the very first contact up to the finished product, we pursue a customer-focused process management. We guarantee high-quality planning, development and design processes as well as outstanding results.

Result: Real successes


Design and development:

  • Preparation of concepts for the overall development of vehicles and components
  • Development of solution strategies for complex problems in existing assemblies
  • Project management, preparation of project  plans and resource planning
  • CAD design of all components with Unigraphics, Catia and Pro/E
  • Design of complex rollover and impact structures
  • Extensive experience in CFRP design, preparation of Lay-Up-Manuals in co-ordination with the client and the supplier
  • Transformation of body shell surfaces in final product designs
  • Checking and adjustment of the results by means of FEM calculation
  • Design of the required devices, tools and moulds
  • Design and construction of models for wind tunnel and performance testing
  • Design and construction of prototypes for test drives or for demonstration purposes (rapid prototyping)
  • Strictly confidential pre-development projects

Our machinery is designed  for the production of high-end-components for aviation and industry. For example we manufacture high-tech Parts for a variety of Airplanes as well as roadworthy e mobile special vehicles up to small series for motorsport (from a production batch of one to about 100 vehicles)


State-of-the-art CNC-machines have a network connection to the CAD-CAM work stations . In this way, extreme accuracy and optimal workflow in the manufacturing process are guaranteed in an effective and highly efficient way.


We are:

  • DIN ISO 9001 : 2015 certified
  • QSA-A Certified  (certified company for aviation, aerospace and equipment industry)
  • equipped with special tools for the machining of highly-resistant materials (for example titanium


Services in the area of production:

  • CAM-supported CNC manufacture on up to 6-axis milling centres for the machining of complex
  • components (component dimension up to 1.800mm in length)
  • Wire-eroding and sink erosion
  • High-precision welding
  • DMSB certified manufacture and installation of rollover structures
  • Own jig department, tooling shop and mould construction
  • Permanent quality control on state-of-the-art measuring systems
    • Measuring of shape and position tolerances
    • Measuring of surface roughness
    • Preparation of documentation


Services in the area of assembly:

  • Preparation of vehicles ranging from prototypes to small series
  • Vehicle preparation mounting plate 3,000x6,000mm with mobile gauge arm
  • Assembly of components
  • Mechanical component design

For our customers from the mechanical engineering sector we are a competent partner for efficient development, design, manufacture, optimizing as well as cost-down and reverse engineering.


Profit from our long-term experience in the development, manufacture and setup for example of special machines, large diesel engines and special vehicles.


Services in the area of machine construction:

  • Conceptual design: ideas, layout and project management
  • Research and development
  • Calculation
  • Design
  • Construction
  • Production as well as support in production processes
  • Preparation of the relevant technical documentation
  • Optimizing and speeding up of the engineering and production processes


100% quality control with state-of-the-art measuring machines


In our air-conditioned measuring centre, we provide 100% quality control and safety with certified measuring equipment – before, during and after the manufacturing process.

We are DIN-ISO 9001/2015 certified


Services in the area of quality control:

  • NDT: Non-destructive testing
  • Measuring of shape and position tolerances
  • Measuring of surface roughness
  • Preparation of measuring records

Test-bench setup:

  • Measurement and mounting plate 3000 x 6000 mm
  • Test area 1000 x 2000 mm for stiffness and fatigue resistant tests of components, using hydraulic or pneumatic PLC control
  • Transmission test bench
  • Steering test bench
  • 2 shock absorber test benches
  • All-wheel-drive test bench up to 450 kW (Maha)
  • Various measuring systems for adaptive equipment

Everything is at the right place  at the right time.

Around the clock worldwide.


Smooth and reliable deliveries are an integral part of the true success of a project. Therefore, we provide you with professional logistic solutions totally adapted to your ideas and requirements.


For decades, our customers have relied upon our accuracy and just-in-time solutions.


Services in the area of logistics:

  • Supply of parts and logistics for motorsport teams
  • Recording of all relevant processes through ERP systems
  • Organisation, control and provision of processes for your flow of goods
  • Event logistics for major events
  • Fast response solutions with overnight deliveries
  • Individual inventory solutions
  • Internet-based systems for the handling of spare part orders
  • Permanent contact for spare part orders

For us service means partnership.


We are available for you at all times. We are ready to listen to your requests, and come to your rescue  even with overnight solutions for any kind of problems with which you are faced!




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