Key Highlights:
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Semi-modular design with no moving parts
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Mounts with just four bolts for easy installation
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Requires minor conveyor modifications
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Compatible with standard conveyor systems
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Supports belt widths from 18 to 36 inches
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Handles up to 1,500 tons per hour
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Optional galvanized or stainless steel versions
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Custom widths and lifting weights available
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Ideal for process control and bulk material flow regulation
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Engineered for mining, quarrying, and industrial retrofits
The Rice Lake Master™ 311 Belt Scale Weigh Frame is a semi-modular, reliable, and cost-effective solution for monitoring and managing bulk flow materials. Designed to fit standard conveyor systems with minimal modification, the 311 frame installs easily using four bolts, making it ideal for retrofitting existing conveyor setups.
The system features a load cell beam that supports the idler or weighing roller—allowing for high accuracy weighing without any moving mechanical parts. This results in a low-maintenance, long-lasting system well-suited for demanding environments such as quarries, mines, and bulk processing plants.
The 311M supports a wide range of belt widths and is especially effective in systems where the measured flow rate is used to regulate conveyor belt speed. Constructed from durable powder-coated mild steel, with optional galvanized or stainless steel construction, it can be adapted for harsh or corrosive environments.
Specifications Table
| Feature |
Specification |
| Belt Width |
18 to 36 in (457 to 914 mm) |
| Capacity |
Up to 1,500 tons per hour |
| Maximum Belt Speed |
400 ft/min (2 m/s) |
| Inclination |
Maximum 12 degrees |
| Material |
Powder-coated mild steel (optional SS/Galv) |
| Accuracy |
±1% |
| Load Cells |
RL1218A: 50 kg, 100 kg, 250 kg |
| Mounting |
Four-bolt system |
| Warranty |
One-year limited |
Applications Table
| Industry |
Use Case |
| Mining |
High-capacity ore and mineral transport |
| Quarrying |
Aggregate handling and blending |
| Bulk Material Plants |
Real-time process flow monitoring |
| Retrofit Projects |
Upgrading legacy conveyors with scale tech |
Get precision and durability with the Rice Lake Master™ 311 Belt Scale Weigh Frame—perfect for any bulk material weighing application. Designed for seamless integration and reliable operation, this system offers exceptional performance with minimal effort.
Shop now at SellEton Scales and enhance your conveyor-based weighing system today.
Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
Customer Support: Contact at (844)-735-5386 or info@selletonscales.com for queries or concerns about shipping.
