

Key Highlights
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Mounts outside the conveyor for easy service and installation
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Requires minimal conveyor modifications
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Features friction-free pivot supports
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Dual-beam support arms enhance durability and precision
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Mounts with only four bolts for fast integration
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Compatible with standard conveyor belt widths
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Offered in galvanized or stainless steel construction
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Ideal for medium to heavy capacity applications
The 221DB Master™ Belt Scale Weigh Frame is engineered to deliver high-performance, reliable weighing for conveyors handling medium to heavy loads. Designed for mounting externally to the conveyor, the frame simplifies maintenance and installation with its user-friendly design.
Equipped with two pivoting support arms and precision load cells, the 221DB securely holds the idler in place, delivering accurate weight measurements without interrupting belt flow. Its rugged construction and optional galvanized or stainless steel build make it well-suited for tough industrial environments including mining, bulk material handling, and processing operations.
Whether you're upgrading an existing system or implementing a new conveyor weighing solution, the 221DB offers a cost-effective, high-accuracy choice that works with standard conveyor setups and performs reliably under load.
Specifications Table
Specification | Details |
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Conveyor Width | 18 to 72 in (457 to 1,829 mm) |
Capacity | 3,300 tons per hour |
Max Belt Speed | 800 ft/min (4 m/s) |
Inclination | Up to 25 degrees |
Material | Powder-coated mild steel |
Accuracy System | 0.5% to 1% |
Load Cell Options | RL9018SS: 50 kg, 100 kg, 200 kg |
Junction Box | JB4SS |
Mounting | Four-bolt mounting system |
Construction Options | Galvanized or Stainless Steel |
Warranty | One-year limited |
Upgrade your conveyor system with the reliable and easy-to-install Master 221DB Belt Scale Weigh Frame.
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.