Injection molding

Tiny to large: With a total of 139 injection molding machines the KH Group produces precision parts of 0.004g to 2.500g at five locations on three continents. Micro and thin-wall injection molding, multi-component technology, hydraulic and all-electric machines – our equipment leaves nothing to be desired. A high degree of automation and the central material supply enable a stable process production as a pre-requisite for top quality.

Equipment

Equipped for all requirements: The KH machinery park

  1. Micro injection molding machines with 15 t locking force
  2. 1K to 400 t; 2K to 1000 t; 3K to 200 t
  3. Automated production cells with camera inspection
  4. Sprue separation by laser 
  5. Thin-wall technology
  6. Insert molding
  7. IML (In-Mold Labelling) / IMD (In-Mold Decoration)

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Always available: 1K – 3K

When it comes to our machinery we place value on flexibility, and for this reason we operate machines for both micro injection molding as well as those having a 1000 ton locking force.

When the part weighs a mere 0,004g and the wall is just 0,1mm thick, precision machines and tools are required. The latter are produced on our premises.

Sometimes there have to be two: At complex extraction and insert situations the robots perform a ballet dance.

For functional foil bonding, a functional foil is applied to the IML decorative part. Fully automatically, of course.

Our well-trained personnel find the optimal machine settings and immediately identify any irregularities in the process, should they appear.

Further examples

Development times are long and secrecy regulations stringent. For this reason, showing current medical products as references is often a sensitive issue. Please feel free to contact us and we will be happy to present you with all our possibilities.

Proven technologies that are still current: A soft-touch painting provides the housing with grip, and the display window is decorated with efficient pad printing.   

For hearing aids, decorated housing and small in-ear components of hard and soft plastic are from KH. Challenges are the thin wall thicknesses and undercuts. 

Opposites attract: Upper components with a soft-effect coating rest on a high-gloss base. They are both joined with an ultrasonically welded infrared window. 

Fingerwork

Sometimes with gloves, sometimes without – depending on the project and the requirements. But, always with fingers that handle your products meticulously.

capacitive operation

Through the capacitive operation of individual fields, it is possible to realize more functions on this component than would have been possible with buttons. That also saves costs.

 

Haptic feedback

Don’t take your eyes off the road. To ensure that the operation is still possible, the steering wheel provides haptic feedback with an adjustable intensity.

 

Vanishing effect

Only that which is required appears. With black panel vanishing effect, additional features can be activated for a particular time and switched off again.

FBB Technology

For the first time in mass production: With Function Foil Bonding (FFB), the functional foil is only applied to impeccable surface parts in the course of an additional process step.

 

Utrasonic welding

The light housing and housing for the reverse side circuit board are joined to form a water and dust tight unit. It is the best and most rational method.

 

Finger guiding

To ensure that operation doesn’t distract from the road traffic: The individual areas of the steering wheel elements are structured with indentations and raised areas that provide orientation.