WD 1


WD 1

Innovation in volumetric dosing – drum dosing device of the next gerneration –

Precise dosing for micro injection molding

<0,01g per shot (*1)

The devices of the WD series are used for coloring on the injection molding machine or extruders.
These are simple, inexpensive and highly accurate volumetric dosing devices, which add dosage per shot of the injection molding machine into the free material flow of the main component.

The devices are suitable for normal and micro injection molding, as well as for the extruder and can be integrated into the control systems of the model-based material handling.

 System Variations & Dosage Options

The innovative drum dosing system WD makes it possible to dose both – granules and powder.

WD1: Cyclic dosing system (metering on main flow of material)
WD2: Simultaneous dosing system (simultaneous single dosing of the components)
WD 1 or WD2 on other devices
WD Powder: High Precision powder dosing

 Walzen-Dosiergerät WD1-2k

Drum dosing device WD1

Volumetric – Extreme precision – High repeatability – No wearing parts




Walzen-Dosiergerät WD1-3k wd1-3k-melsesonde wd1-3k-entleerfunktion

Drum-dosing device WD1

Volumetric – Extreme precision – High repeatability – Without wear parts

Integratable in control systems of model-based material handling


The unique drum dosing concept has been developed especially for the microdosing of free-flowing materials. The special geometry of the exchangeable dosing drums as well as the adjustment of the speed of rotation makes it possible to precisely dose the smallest dosage amounts <0.01g * 1.

Due to the high precision and repeatability, the drum dosing system is excellently suitable for shot-based dosing in micro injection molding / injection molding as well as for continuous dosing into extrusion lines.

The use of different drum geometries results in a large dosing range of approx. <20 g / h to> 30 kg / h * 1.

Calibrating and cleaning is carried out in a very short time thanks to the sophisticated design.

* 1: Per shot, depending on bulk density and grain size


• Highest precision
• Up to 4 components can be dosed
• Low material presentation
• No wear parts (wipers)
• Fast emptying of the batch / additive station. This results in faster color changes and material savings.
• Resistant to vibration and shock
• Easy cleaning without tools
• Large dosing range due to variable speed and drum geometries
• Continuous discharge – No pulsation


• Shot-related addition of additives
• Main component in free inlet
• Color Touch Panel 3.5 ”
• Logbook
• Ethernet
• Selectable drum housing (aluminum or stainless steel)
• Selectable drim material (plastic or stainless steel)
• Selectable delivery capacity through adapted drum geometry
• Control detachable


• External control module for pneumatic suction conveying
• Control on the device or externally mountable
• Different sizes (Small, Medium, Large)
• Dosing housing / dosing drum in aluminum or stainless steel
• Adjustable flanges
• Gravimetric calibration module
• Powder dosing station with planetary dosing unit

* 2: in preparation
 WD-Steuerung-OP4 CONTROL WDx

• Up to 4 dosable components
• Intuitive operation with touch panel
• User and rights management
• Logbook exportable to USB stick
• Recipe store
• Consumption counter
• External control module for conveying (optional)
• Modbus UDP interface
• FTP server
• Installation on the device or in a separate control cabinet




Dosing capacity < 0.01g per shot up to> 30kg / h * 1

* 1: Depends on bulk density and grain size
Total power  max. • Small 80kg / h, • Medium 200kg / h, • Large 800kg / h

(* 2: depending on the conveyor)
Stepper motor 870,400 steps per revolution
Blocking detection by Hall sensor
Product-contacting parts Optionally in stainless steel, aluminum
Drum Stainless steel, plastic (POM)
Sizes: 6, 12, 25, 45mm
Max. Dosing stations 5 (4 additives, 1 free feed)
Electrical connection 230V AC, 50Hz

WD 1 Dosing devices, 2-5 components






WD1-2k 2 components

1 components with precision drum dosing devices

1 component in free feed


WD1-3k 3 components

2 components with precision drum dosing devices

1 component in free feed


4 components

1 components with precision drum dosing devices

1 component in free feed


5 components

4 components with precision drum dosing devices

1 component in free feed


 WD2 Simultaneous dosing system (simultaneous single dosing of the components)

 WD1 on other devices

Hx800-PET-PREFORMER  CD30-WD2-4K  Cx 150 Serie 3 Dosing with up to 4 WD drum dosing devices

WD 1 Dosing devicees, Small, Medium, Large



Description: The foot makes the differece


WD1-Small WD1-Small with small foot


WD1-2k WD1 Medium medium foot


WD1-Large with large foot

WD system


WD1 – compact version, dosage into the material flow (1 main component, 1 additive)
WD2 simultaneous dosing (up to 4 roller dosing devices on one foot)
WD system on other devices



Image Language Device PDF Catalog
Folder WD1


 WD1  Folder WD1-DE


WD1 Folder WD1-EN


 WD1 Folder WD1-FR