Grammage Gauge Controller (Gravimetric Loss‑in‑Weight System)
It is matched for film blowing & cast film extrusion lines. With loss‑in‑weight weighing sensors, it real‑time monitors raw material feeding flow. Closed‑loop automatic control adjusts extruder screw speed and haul‑off speed, to stabilize film grammage and thickness. It reduces thickness deviation, saves raw material and lowers scrap rate.
Available for single‑layer and 3‑layer co‑extrusion lines, can control output ratio for each individual layer. Equipped with touch‑screen operation. Alarms for material shortage, screen blockage, total output counting and roll‑length monitoring.

Main Features

1. Real‑time grammage monitoring, closed‑loop auto‑control for uniform film thickness

2. Fit for single‑layer and 3‑layer co‑extrusion line, independent output adjustment for each layer

3.  touch screen, recipe memory for quick production recall

4. Alarm functions: material shortage, screen blockage, meter counting & total production statistics

5. RS485 communication port for connecting main machine system

6. Save raw material, reduce scrap rate and improve finished product quality

Application

PE film blower, ABA / 3‑layer co‑extrusion blowing line, cast film line. For shopping bag film, stretch film, agriculture film and other plastic extrusion equipment.