(Pre-)mixing
We provide you with flexible solutions for mixing and dosing plastics that make your company more economical.
Our premixers mix plastics such as granulate, regrind or free-flowing powder with masterbatch or additives.
Homogeneous mixing is the basis for further processing - in injection molding, extrusion or blow molding.
Dosing and coloring
With our dosing solutions, you can achieve maximum accuracy when dosing masterbatch or additives into a main material.
We offer volumetric and gravimetric dosing solutions for dosing additives into a plastic material that is then processed in the injection molding machine or extruder.
This allows you to achieve precisely consistent color shades when coloring.
Gravimetric dosing process with the patented GRAVIKO:
- The individual material components, such as virgin material, masterbatch and additives, are dosed into the weighing hopper
- The ACTUAL weight is registered ...
- ... and compared with the TARGET.
- As soon as the target weight is reached, the material is emptied into the mixer and mixed homogeneously for processing.
Graviko
Patented gravimetric dosing and mixing system from KOCH-TECHNIK
Prof. Dr. h.c. With the GRAVIKO, Werner Koch has developed a system that allows the user to simplify the gravimetric dosing of material.
With the GRAVIKO series, you can easily dose and weigh, check, correct and evaluate - in a single work step.
The control system detects external interferences and compensates for them during weighing. Incorrect dosing is therefore a thing of the past.
Production line with GRAVIKO GK 250 at a plastics processor in Mexico.
A GRAVIKO GK can be dismantled without tools within two minutes.
For easy material changeover, the sliding device is replaced by a swivel device for large dosing stations.
The GRAVIKO series:
| GRAVIKO type GK 65 - for throughputs up to 80 kg/h |
| GRAVIKO type GK 250 - for throughputs up to 250 kg/h |
| GRAVIKO type GK 600 - for throughputs of up to 600 kg/h |
| GRAVIKO type GK 1000 - for throughputs up to 1000 kg/h |
| GRAVIKO type GK 1500 - for throughputs up to 1500 kg/h |
(special types on request)
GRAVIKO type GK600 in a modular system.
The KOCH modular system: everything fits together, each device can be supplemented with a different module. The simple handling is also fascinating: the conveyor hoods are hinged, material conveyors can be swivelled and sliding and swivelling devices facilitate material changes - without much effort and all without tools.