Development
services
(OEM) Appliances.
The service portfolio includes:
- Requirements analysis in coordination with the customer
- Technology, patent and market research
- Test and measurement laboratories for electrical, thermal and mechanical devices
- Application technology and usability tests
- Equipment approval, e.g. VDE, UL, CSA, CE
- Toolmaking and assembly
- Packaging design and logistics
Assemblies.
After the development phase, we manufacture assemblies from different components and materials in series and prepare them for assembly in our cost-effective plants. In addition to the development of assemblies, Gronbach’s core competencies lie in the connection of the individual components using our comprehensive bonding and joining technologies.
- Racks
- Fronts
- Appliance doors
- Roller rails…
Components made of plastic and metal.
Functional and design-oriented components made of aluminium, sheet metal, stainless steel and steel with various methods of pre- and post-treatment, including products such as
- Fronts and panels
- Drip sheets
- Housings
- Handles and frames
- Roller rails
- Automotive sill trims
Kinematics.
We focus our hinges and pull-out systems on the household appliance industry, for which we have been developing and mass-producing innovative solutions for more than 50 years, including for ovens, freezers, refrigerators and dishwashers.
We adapt our existing kinematic solutions to the individual situation and customer requirements in order to achieve a perfect fit. Through our platform, we are not only able to adapt our solutions to new household appliance models, but also to alternative application areas and industries.
- Full and partial extension runners
- (Electro-)mechanical hinges
- Special kinematics
Blower systems.
At Gronbach, we develop or optimise complete fan systems or individual fan elements according to customer requirements. We analyse the motorisation, power electronics, ducting and available installation space for the required flow efficiency and minimise any noise emissions at the same time.
We injection-mould the plastic fan wheels ourselves in our plants. They are used in the drive technology, automotive, railway, ventilation, air-conditioning and refrigeration technology industries, as well as in the household appliance industry and in the field of domestic ventilation.
Our fan wheels guarantee perfect concentricity and no imbalance.
- Fan wheels and hubs
- Electronics and motorisation
- Housing and ducting
Cross-industry services.
We supply a wide range of industries that place the highest demands on the functionality, design and quality of their products.
Our cross-functional group of companies combines three divisions into a full-service supplier for the development and series production of devices, technical assemblies and components made of plastics and metals, as well as for the design and optimisation of ventilation systems.
Competencies
in manufacturing.
Other core competences are our cost-effective sheet metal processing using CNC and plastic injection moulding.
- Mechanical machining
- Surface finishing
- Hybrid composites & bonding
- Toolmaking & Assembly
Mechanical metalworking
Sheet metal, steel, stainless steel, aluminium
- Turning (CNC), milling (CNC), sawing
- Cutting, forming, punching, nibbling
- Pressing from 50-500t (eccentric, servo, hydraulic, extrusion)
- Bending (press brakes, bending robots and fully automatic bending cells)
- Joining (riveting, clinching, gluing, tumbling, screwing)
- Robot grinding and polishing systems
- Welding (laser, TIG welding, spot welding)
Mechanical finishing
Gronbach relies on reliable and innovative surface treatments for design applications in the processes of forming and joining non-rusting metals such as stainless steel or aluminium, including by means of:
- Brushing
- Grinding
- Blasting
- (Laser) polishing
Anodising
We have our own anodising plant that can support you with the following finishing processes:
- Organic or electrolytic anodisation
- Partial / selective anodising
- Anodising of already back-moulded components
In addition, various forms of pre- and post-treatment are possible, for example brushing, grinding, blasting, polishing, special pickling and lasering.
Powder coating
Using our own powder coating facility, we coat components with a range of over 210 RAL colours, which we deliver just in time. For special requirements, we can treat the surfaces with, for example, anti-stick or anti-fingerprint coatings.
Laser, printing and etching technology
For the visual labelling of functional components and other products, e.g. with logos, symbols or lettering, we use various processes for individual decorative and functional coatings:
- Etching technology
- Screen and pad printing
- Laser marking, laser engraving
Metal and metal foil back-injection
To achieve a substructure of metal components and metal foils, we back-inject them with the required plastics.
We design and manufacture the plastic injection moulding tools required for this ourselves in order to avoid distortion due to shrinkage and different linear expansions. Furthermore, we integrate the desired electronics or lighting elements during back-injection moulding.
Joining and bonding technologies
We join components using a wide variety of methods. In bonding, we use liquid adhesives, adhesive tapes and also adhesive die-cuts, which we apply manually or robotically. Optionally, different types of pre-treatment are possible, including plasma, primer, scarfing or pyrosil as well as different rapid curing methods (UV light, infrared, heat radiation).
- 1C adhesives with manual and robot-assisted application
- 2C adhesives in robot systems with high-end dispensing technology
- Adhesive tapes with manual or robot-assisted application
- Punched adhesive substrates with special systems for perfect positioning and pressing
Toolmaking
- Embossing tools
- Punching tools
- Multi-cavity tools
- Progressive dies
- Injection moulds
- Transfer tools
- Forming tools for visible components
- Devices for handling
- Testing and measuring devices
Assembly and automation
- Manual assembly
- Partially-automated assembly of small to medium quantities
- Fully-automated production of large quantities
- Complete assembly lines incl. safety and function tests
- Customised assembly lines