KOCH-TECHNIK produces outstanding peripherals for pre-mixing, dosing, conveying or drying of materials for your polymer processing. You always get the most economic and tailor made solution for your successful business.
Expand your capabilities with KOCH-TECHNIK.
Mixing, Dosing and Coloring
Mixing
We at KOCH-TECHNIK offer you flexible solutions for economic production in all the mixing and dosing functions required by your plastic processing systems.
Our solutions, which we develop, offer outstanding dosing accuracy and mingling, ensuring that your end products are always of the highest quality.
Dosing and coloring
In the KOCH modular system you have a range of components from which to choose so that all your production requirements are fully covered.
For coloring and adding ingredients to the plastics in your manufacturing process, our developments offer both simple and effective solutions which will deliver high levels of flexibility and economy.
Pre-Mixers for Injection Moulding Machines (IMM)
Pre-mixer type KK
A pre-mixer for machine throughputs up to 25 kg/h
Shot weights up to 200 g
You should use a pre-mixer both for dosing of powder and for extremely accurate masterbatch processing. If regrind is also part of the equation, this is the surest way to go.
| Total processing capacity: | type KK | |
| of powder and virgin material | max. | 20 kg/h |
| of masterbatch | max. | 25 kg/h |
| Shot weight | ||
| with powder | max. | 150 g |
| with masterbatch | max. | 200 g |
| connected value | approx. | 0.1 kW |
| number of stations | max. | 3 |
Pre-mixer type G
A pre-mixer for machine throughputs up to 70 kg/h
Shot weights up to 900 g
The G mixer is a pre-mixer for medium-sized machine throughputs, for use on or next to the injection moulding machine.
Up to four different components can be processed. Combined with KOCH conveyors, a system can operate fully automatically.
| Total processing capacity: | type G | |
| of powder and virgin material | max. | 60 kg/h |
| of masterbatch | max. | 70 kg/h |
| Shot weight | ||
| with powder | max. | 700 g |
| with masterbatch | max. | 900 g |
| connected value | approx. | 0.15 kW |
| number of stations | max. | 4 |
Pre-mixer type V
A pre-mixer for machine throughputs up to 250 kg/h
Shot weights from up to 4 kg
The V-pre-mixers are the larger relations of the KK and G mixers. They really show what they are capable of with high machine throughputs: up to 400 kilograms per hour do not present a problem.
The mixing body is made from stainless steel. In combination with the correct conveyors, it can process powder, masterbatch, virgin material and ground material.
Pre-Mixer type V with dosing stations fed via hopper loaders A30
| Total processing capacity: | type V12 | type V25 | |
| of powder and virgin material | max. | 80 kg/h | 200 kg/h |
| of masterbatch | max. | 100 kg/h | 250 kg/h |
| Shot weight | |||
| with powder | max. | 1000 g | 2000 g |
| with masterbatch | max. | 1500 g | 4000 g |
| connected value | approx. | 0.2 kW | 0.25 kW |
| number of stations | max. | 4 | 4 - 5 |
Pre-Mixers for Extruders and Blow Moulding Machines
Pre-mixer type Gx
Pre-mixer for extruders and blow moulding machines
Throughputs up to 60 kg/h (Gx) or 120 kg (Gx7)
The Gx pre-mixers are optimised for use on extruders and blow moulding machines.
Dosing is batchwise. If the material level falls below a certain point, all the stations accurately dose a set quantity into the mixer. It is irrelevant whether the output from the machine is regular or irregular. The colour always remains consistent.
| Total processing capacity: | type Gx | type Gx7 | |
| of powder | max. | 40 kg/h | 100 kg/h |
| of masterbatch | max. | 60 kg/h | 120 kg/h |
| connected value | approx. | 0.21 kW | 0.22 kW |
| number of stations | max. | 3 - 4 | 4 |
Pre-mixer type Vx
Pre-mixer for extruders and blow moulding machines
Throughputs up to 250 kg/h and shot weights up to 7 kg
Like the smaller Gx siblings, the machines in the Vx family are designed for use on extruders and blow moulding machines.
Thorough mixing with batchwise dosing and level monitoring guarantee consistent extrusion and blow moulding results.
These pre-mixers are available in types V12x, V25x, V40x and V60x. Elements in the modular system to complement them include dosing devices for powder, masterbatch, and new and ground material with the appropriate conveyors.
The mixing bodies are made from stainless steel.
| Total processing capacity: | type V12x | type V25x | |
| of powder | max. | 180 kg/h | 280 kg/h |
| of masterbatch | max. | 250 kg/h | 350 kg/h |
| connected value | approx. | 0.45 kW | 0.55 kW |
| number of stations | max. | 4 | 4 - 6 |
| Total processing capacity: | type V40x | type V60x | |
| of powder | max. | 400 kg/h | 600 kg/h |
| of masterbatch | max. | 500 kg/h | 1000 kg/h |
| connected value | approx. | 0.75 kW | 1 kW |
| number of stations | max. | 4 - 6 | 4 - 6 |
Pre-mixer V40x with dosing stations and hopper loaders
Dosing and Coloring
Volumetric Dosing
Dosing masterbatch or grains
Dosing with ± 0.15% accuracy
Each chamber must be filled equally before it is emptied. Any excess grains on the feed roller are scraped off. At a constant speed, it is possible to achieve extremely accurate doses.
left: Dosing station Kö types 2 up to 4; right: types Kö 6 up to 8
The grain stations type Kö for masterbatch
Save on dye with chamber volume dosing!
The station types Kö 2-1 up tp Kö 4 allows you to dose grains very accurately and with variable adjustment, for both masterbatch and small or large grains. The feed roller is very flexible. That is how it was designed and practice has shown that it works well
| type | throughput per station | capacity |
| Kö 2-1 | 0.5 kg/h | 4.0 litre |
| Kö 2 | 1.0 kg/h | 6.0 litre |
| Kö 3 | 4.0 kg/h | 10.0 litre |
| Kö 4 | 7.0 kg/h | 10.0 litre |
The large dosing station types Kö 6 up to 8 are for virgin- or ground material.
A large built-in cellular wheel makes it possible to dose both new material and free-flowing ground material. The chamber volume dosing system ensures very high accuracy.
| type | throughput per station | capacity |
| Kö 6 | 350 kg/h | 40.0 litre |
| Kö 7 | 600 kg/h | 60.0 litre |
| Kö 8 | 1000 kg/h | 100.0 litre |
Dosing ground material, coarse powder or grains
The most accurate dosing with a cellular wheel
Dosing station types Ma 1 up to Ma 7
Volumetric chamber dosing of ground material - a cellular wheel made from stainless steel with large chambers is used for coarse granulate or ground material.
| type | throughput per station | capacity |
| Ma 1 | 7.0 kg/h | 11.0 litre |
| Ma 2 | 14.0 kg/h | 11.0 litre |
| Ma 3 | 25.0 kg/h | 11.0 litre |
| Ma 4 | 140.0 kg/h | 11.0 litre |
| Ma 5 | 200.0 kg/h | 20.0 litre |
| Ma 7 | 500.0 kg/h | 40.0 litre |
Each chamber is filled equally before it is emptied. Excess granulate is scraped off. At a constant speed, it is possible to achieve extremely accurate doses.
Dosing powder
Dosing free-flowing powder with ± 0.15% accuracy
Volumetric camber dosing of powder (only free-flowing powder) - a feed roller with chambers that is always filled to the same level with powder.
Dosing station Pu
A supporting plate with the same bulk density below it, irrespective of how much or how little powder is in the storage container, with a paddle and a scraper ensure accurate dosing.
| type | throughput per station | capacity |
| Pu 1 | 0.5 kg/h | 4.0 litre |
| Pu 2 | 1.0 kg/h | 6.0 litre |
| Pu 3 | 2.0 kg/h | 10.0 litre |
| Pu 4 | 4.0 kg/h | 10.0 litre |
| Pu 5 | 7.0 kg/h | 20.0 litre |
| Pu 7 | 15.0 kg/h | 40.0 litre |
KEM - direct coloring unit
The most accurate dosing with a cellular wheel
KEM dosing unit in use
With thousands of installations, the KOCH KEM direct coloring device has proven many times over that it is the simplest and best-value solution for dyeing plastic material with masterbatch.
The dosing quantity can be variably adjusted. During impulse-dependent dosing (injection moulding), the dyeing process is carried out fully automatically with volumetric chamber dosing for the entire time granulate is supplied to the screw, with the main component being added via a free feed device. Therefore, when the product is changed, there is no mixed material in the machine.
Koch-Technik direct coloring unit type KEM-Ma/AZ for throuputs up to 500 kg/h
| type for |
throughputs |
shot weights |
| KEM / AZ | up to 200 kg/h | of 0.02 kg to 10.0 kg |
| KEM / AZ 2 st. | up to 200 kg/h | of 2.0 kg to 10.0 kg |
| KEM / AZ 3 | up to 150 kg/h | of 0,02 kg to 2.0 kg |
| KEM-Ma / AZ | up to 500 kg/h | of 2.0 kg to 10.0 kg |
Changes to the dosing values can be noted immediately on the product. Dye or material changes can be carried out quickly, cleanly and without tools.
The controller component is integrated in the machine housing and offers a choice of two programs for injection moulding machines and two programs for extruders. Furthermore, it is possible to store up to 20 different recipes.
Gravimetric Dosing
GRAVIKO GK 250
GRAVIKO
Gravimetric dosing and weighing system (patented)
In the GRAVIKO Professor Werner Koch has developed a system which allows users to weigh material doses very easily, at the same time monitoring, correcting and analysing the process.
All the components can be put together in a modular structure and combined very easily.The result is dosing accuracy to ± 4 grains per 1,000 grains.
The patented GRAVIKO series makes it easy to dose and weigh, monitor, correct and analyse - in one cycle.
As a rule, by combining slide opening times with chamber volume dosing, it is possible to achieve dosing accuracy of ± 4 grains per 1,000. The KOCH-GRAVIKO programme recognises external influences as "aberrations" and does not take them into account when comparing the weights.
This makes incorrect dosing as the result of external influences a thing of the past.
It is possible to take a GRAVIKO GK apart within two minutes without tools. Dosing stations can be pushed outwards once two wing screws have been released.
For dosing stations with material throughputs of over 800 kg/h, the slider mechanism is replaced by a pivoting mechanism to make it easier to change the material.
Gravimetric dosing and weighing with the GRAVIKO mean
- Dosing individual components into a container fitted with weighing scales.
- Registering the actual weight
- Comparison with the target weight in the KOCH controller
- Emptying into the mixer if there is no discrepancy
GRAVIKO GK 65 with control unit.
The GRAVIKO models:
| GRAVIKO GK 65 - for throughputs of up to 70 kg/h |
| GRAVIKO GK 250 - for throughputs of up to 250 kg/h |
| GRAVIKO GK 600 - for throughputs of up to 600 kg/h |
| GRAVIKO GK 1000 - for throughputs of up to 1,000 kg/h |
| GRAVIKO GK 1500 - for throughputs of up to 2,000 kg/h |
GRAVIKO GK 600 in the KOCH-TECHNIK modular system. The KOCH-TECHNIK modular system works like this: everything fits together, every piece of equipment is a complement to another. The simplicity of handling is also compelling: conveyor hoods that fold back, a conveyor that can swivel through 360° and a moveable dosing station - and all without tools.
Control Units
Control Units for Mixing, Dosing and Coloring
Type MCm (microprocessor control unit)
KOCH microprocessor control unit for 4 or 8 dosing stations
Key features:
- Easy and user-friendly to operate
- Clearly laid-out operating panel with keyboard and text display
- All the operating data is stored and can be retrieved at any time
- Memory for up to 100 recipes
- Programmes for new and ground material
- Interface to an external data processing system or a printer
The device controls and monitors all the workflows you specify.
You enter the material to be processed into the unit and follow that with the required percentages. KOCH’s MCm control system calculates the exact feed rate automatically.
All the operating data is stored in an internal memory for retrieval at any time. This is particularly important if there is an obligation to provide proof of standards in certified businesses.
Type SL 42
KOCH control unit for 2 dosing stations
Key features:
- Simple, user-friendly operation
- Clearly laid-out operating panel with keyboard and text display
- Memory for up to 100 recipes
- Optional RS 422 data interface
You can enter the shot weight and the percentage values for the dosing directly via the operating panel. The device calculates the necessary dosing times automatically.
A programme for "easy new start" makes the automatic filling of the mixer easier when there is a switch to a new material.
Types SL 31 and SL 41
KOCH control systems for 1 or 2 dosing stations
For connection to injection moulding machines: the feed and mixing times are controlled for every production cycle.
Control Unit for Gravimetic Dosing
Control systems for gravimetric dosing and mixing systems
MCm-G Touch control unit
The MCm-G Touch is an easy-to-use control unit specifically for gravimetric dosing systems. After the size of the weighing container and the recipe have been input, dosing proceeds from the first cycle without the need for any calibration.
All the process data, such as the date, the time, batch information, recipe and machine downtimes, are queried, edited and stored via the touch screen. It is possible to use the unit to document the dosing parameters including all the results.
The internal microprocessor offers exceptional processing power with low energy consumption. It can be easily integrated into an existing network with a network connector. As well as non-volatile memory, it has a slot for a bootable SD/MMC card. The computer unit is protected by a robust industrial housing.
| DISPLAY |
| TFT LCD 5.7“, 24-bit with LED illumination and touch function |
| HARDWARE |
| 16-bit processor ARM 9 and up to 4 GB non-volatile memory |
| SD slot and optional interfaces: Ethernet, USB, RS232/422 |
| Control for up to 4 dosing units (8 dosing units as an option) |
| SOFTWARE |
| Very user-friendly software |
| Language changeover: Display in 16 languages |
| Manual actuation of all functions (cleaning and setup mode) |
| 100 recipes and ground material program |
| Dosing parameters with nominal and actual value display |
| Specification of dosing volume, e.g. for octabin fill |
| USB interface as option for exporting the recorded dosing data |
| Internet FTP server implemented (IP and DNS server address can be set) |
| 3 password levels and password administration |
| Alarm records, Alarm configuration and tolerance monitoring |
| Connection to visualisation software (optional) |
| Control of 4 conveyor components (up to 8 conveyors optional) |