Rulmeca 320 Series Motorized Pulleys
A workhorse for quarry and aggregate duty — the 12.64″-diameter Rulmeca 320 series (L, M, and H) covers portable plants, stackers, and transfer conveyors up to 15 HP.
Models & Specifications
- 320L: 1–5.5 HP, belt speeds 76–600 fpm, face widths from 15.75″.
- 320M: 1–15 HP, belt speeds 38–600 fpm, face widths from 19.69″.
- 320H: heavy-duty rating, belt speeds 24–480 fpm, face widths from 21.65″.
Key Features:
- Hermetically Sealed Drive: Motor, gearbox, and bearings are fully enclosed inside the pulley shell, protected and constantly lubricated by an internal oil bath — no exposure to dust, weather, or washdown.
- Safer by Design: Far fewer external moving parts than an exposed motor/gearbox drive, making guarding simpler and reducing injury risk.
- Compact & Lightweight: Typically 20–40% lighter than a comparable exposed drive arrangement — no external pillow block bearings, couplings, or guards.
- Minimal Maintenance: No routine greasing — seals at ~30,000 operating hours and oil changes at ~50,000 hours.
- Diamond-Pattern Lagging Standard: Black rubber lagging applied to suit horsepower and belt speed.
- VFD Compatible: Pairs with variable frequency drives for soft starts and speed control.
Ready to Order?
Add to your quote list and note your model, horsepower, belt width, and belt speed — our team will size the right Motorized Pulley for your conveyor and follow up with pricing.