LW Series
Continuous type gravimetric dosing unit
(For Dosing and Line Control)

Applications:

• For extruder machines
• Extruder output supervision
• Gram per Meter control
• Precise layer control in a multi-layer extruder line
• Fast control during ramping using Cotex Control

Features:

• Stainless Steel construction
• Semi-automatic calibration
• No need for tuning or setup when replacing materials
• Weighing bucket sizes from 0.5 to 50 liters
• Capacity range from 10gr/h to 4000 kg/h per channel
• Standard Omron PLC control
• Single off center load cell per channel
• Additives feeding using screw and or belt feeders

(The belt feeders have the unique ability of 1:1500 feeding range)

Principle of Operation:

• The main material is fed directly into the extruder using a loss in weight hoppers. The measured throughput is used to synchronize the additive feeders.A special MODELING type of control compensates and reacts accurately even during vast RPM changes.
• The line speed is measured using digital or analog interface and the extruders are adjusted accordingly.
• Precise layer control in multi-layer lines. Layers are distributed by either thickness or mass proportion. Product dimensions can be presented in either gram-per-meter or average thickness (microns).