The document describes the working principle and applications of Milltronics MSI and MMI continuous weighing products. These products are suitable for controlling stone blending tunnels, monitoring grinding mill feed rates, tracking daily production rates and totals, controlling coal feed for power plants, etc. The performance accuracy is ±0.5% within the 20-100% operating range. The products are suitable for fast-moving belts, short idler spacing, light or uneven belt loading.
The MSI and MMI continuous weighing system from Milltronics provides heavy‑duty strain‑gauge load cells for measuring load on belt‑conveyor idlers. It is designed for a wide range of industrial processes such as stone‑blending tunnels, grinding‑mill feed monitoring, coal feed control, and custody‑transfer applications.
Key features include high accuracy (±0.5% to ±0.125% depending on configuration), robust stainless‑steel construction with IP65 protection, and flexible integration options via Modbus, PROFIBUS, DeviceNet and other protocols. The system supports belt widths from 500 mm to 2000 mm, speeds up to 5 m/s, and capacities up to 12 000 t/h, making it suitable for fast‑moving, short‑spacing belt lines.
| Accuracy (MSI) | ±0.5% from 20‑100% operating range |
|---|---|
| Accuracy (MMI‑2) | ±0.25% from 20‑100% operating range |
| Accuracy (MMI‑3) | ±0.125% from 25‑100% operating range |
| Maximum Capacity | 12 000 t/h at maximum belt speed |
| Belt Width | 500 mm to 2000 mm |
| Belt Speed | Up to 5 m/s (1200 ft/min) |
| Load Cell Overload Rating | 150% rated, 300% ultimate |
| Enclosure Protection | IP65 |
| Approved Standards | NTEP, Measurement Canada, OIML, MID, SABS |
The MSI scale provides an accuracy of ±0.5% over the 20‑100% operating range.
The systems are approved by NTEP, Measurement Canada, OIML, MID and SABS for custody‑transfer applications.
It can handle belt speeds up to 5 m/s (1200 ft/min).
The load cell is rated for 150% overload and up to 300% ultimate overload.