GD1 gravimetric drum dosing

GD1 Gravimetric drum dosing device

for micro injection moulding, injection moulding and extrusion
Loss-in-weight metering for 2 additives

• For shot weights from 10 to 500 g
• Precision dosing drum technology
• No scrapers
• Stepper motor with encoder

Integratable in control systems of model-based material handling

	Drum dosing device GD1-3k (3 components) Gravimetric loss-in-weight metering High repeat accuracy No wear parts 3 components, equipped with highly accurate drum dosing devices WD1
DESCRIPTION The unique drum dosing concept was developed especially for dosing free flowing materials. The special geometry of the exchangeable dosing drums and the speed adaptation allows precise metering of smallest quantities down to 0.1 g1 per shot. Thanks to its high precision and repeat accuracy, the drum dosing system is ideally suited for shot dosing for injection moulding and micro injection moulding as well as continuous dosing on extruders. The use of different drum geometries allows a large dosing range from about 10 g/h to >300 kg/h1. Through the well thought out design, calibration and cleaning are quick and easy. *1: Per shot, depending on bulk density and grain size	BENEFITS • Up to 2 components can be metered • Gravimetric loss-in-weight metering • Automatic adaptation to material bulk density • Gravimetric consumption measurement • No wear parts (scrapers) • Rapid emptying of batch/additive station for fast colour change and material savings • Largely resistant to vibration and impacts • Easy cleaning without tools • Large dosing range through variable speed and drum geometries • Continuous discharge – low pulsation
MICROCONTROLLER GDx • Dosing of up to 2 components • Main component with gravity feed • Intuitive operation with touch panel • Meter • External control module for conveying (optional) • Modbus UDP interface • Display can be mounted on device or in separate control cabinet • Extrusion mode with 0-10 V input2 2 available soon	OPTIONAL EXTRAS • External control module for vacuum conveying • Controller can be fitted to device or externally • Range of sizes available (small, medium, large) • Doser housing/dosing drum in aluminium or stainless steel • Potential-free fault alarm output • High-temperature version2 2 available soon

Technische Daten
Dosing capacity	1.0 g per shot up to >300 kg/h1 1 : Per shot, depending on bulk density and grain size
Drum output, max. Drum channels 6-45 mm	• 6 mm up to 1 g/s • 12 mm up to 3 g/s • 25 mm up to 10 g/s • 45 mm up to 30 g/s
Stepper motor with encoder monitoring	51,200 steps per revolution (optionally 870.400 steps per revolution) Blockage detection through Hall sensor
Max. no. of dosing stations	3 (2 additive, 1 free inflow)
Electrical connection	230V AC, 50Hz

System variations & dosage options:

The innovative drum dosing system makes it possible to dose both. Granules and powder.

WD1: Cyclic dosing system (metering on main flow of material)
WD2: Simultaneous, continuous dosing system (simultaneous single dosing of the components)
WD 1: or 2 on devices
WD Powder: High Precision powder dosing

GD-WD-System

WD1 – Compact version. Dosing into the material stream (1 main component, 1 Additiv)

WD2- Simultanious dosing (up to 4 drum dosing units on one foot)

WD-System on devices

on Cx 50
on CX 300

Downloads

Image	Language	Device	PDF	catalog
	DEUTSCH	GD1	Folder GD1-DE
	ENGLISH	GD1	Folder GD1-EN
	FRANÇAIS	GD1	Folder GD1-FR

	Drum dosing device GD1-3k (3 components) Gravimetric loss-in-weight metering High repeat accuracy No wear parts 3 components, equipped with highly accurate drum dosing devices WD1
DESCRIPTION The unique drum dosing concept was developed especially for dosing free flowing materials. The special geometry of the exchangeable dosing drums and the speed adaptation allows precise metering of smallest quantities down to 0.1 g1 per shot. Thanks to its high precision and repeat accuracy, the drum dosing system is ideally suited for shot dosing for injection moulding and micro injection moulding as well as continuous dosing on extruders. The use of different drum geometries allows a large dosing range from about 10 g/h to >300 kg/h1. Through the well thought out design, calibration and cleaning are quick and easy. *1: Per shot, depending on bulk density and grain size	BENEFITS • Up to 2 components can be metered • Gravimetric loss-in-weight metering • Automatic adaptation to material bulk density • Gravimetric consumption measurement • No wear parts (scrapers) • Rapid emptying of batch/additive station for fast colour change and material savings • Largely resistant to vibration and impacts • Easy cleaning without tools • Large dosing range through variable speed and drum geometries • Continuous discharge – low pulsation
MICROCONTROLLER GDx • Dosing of up to 2 components • Main component with gravity feed • Intuitive operation with touch panel • Meter • External control module for conveying (optional) • Modbus UDP interface • Display can be mounted on device or in separate control cabinet • Extrusion mode with 0-10 V input2 2 available soon	OPTIONAL EXTRAS • External control module for vacuum conveying • Controller can be fitted to device or externally • Range of sizes available (small, medium, large) • Doser housing/dosing drum in aluminium or stainless steel • Potential-free fault alarm output • High-temperature version2 2 available soon

GD1 gravimetric drum dosing