---

Technical Architecture of Selection Conveyors

Ergonomic Design for Maximum Inspection Efficiency

The engineering of the Hand Pick Selection Belt Conveyor focuses on visibility and operator comfort to maintain high accuracy during long shifts.

• Food-Grade PVC/PU Belting: Features white or blue high-contrast surfaces to make defects, stones, and discolored grains instantly visible to the human eye.

• Variable Speed Control (VFD): Allows the line manager to synchronize the belt speed with the number of operators and the contamination level of the batch.

• Integrated LED Lighting Systems: High-intensity, flicker-free lighting modules are mounted above the belt to eliminate shadows and reduce eye strain.

• Dual-Channel Discharge: Equipped with integrated side chutes or central dividers, allowing operators to easily "flick" rejected items into a separate waste stream without stopping the flow.

---

Why Integrate Hand Pick Selection Belts?

The Final Guardian of Brand Integrity

While optical sorters are fast, a selection belt provides a layer of quality assurance that machines sometimes miss.

1. Judgment-Based Sorting: Humans can identify complex defects—like a slightly "off" texture or a specific type of fused grain—that AI parameters might not yet be programmed to catch.

2. Flexible Quality Levels: Easily adjust your sorting strictness for different orders without needing to recalibrate complex software.

3. Gentle Material Handling: Unlike vibratory feeders, the smooth motion of the selection belt prevents the breakage of delicate roasted nuts, pulses, or coated seeds.

4. Final Safety Check: Serves as the ultimate fail-safe to ensure that no foreign objects (glass, plastic, or wood) have entered the stream during the intermediate processing stages.

---

Key Features of the ADDAMS Selection Series

Built for Longevity and Sanitary Excellence

Our Hand Pick Selection Belt Conveyors are manufactured to the highest global engineering standards:

• Open-Frame Stainless Steel Construction: Built from AISI 304/316, the frame features a "Wash-Down" design with minimal flat surfaces to prevent dust accumulation.

• Adjustable Working Height: Telescopic legs allow the conveyor to be set at the ideal height for standing or seated operators, complying with modern ergonomic standards.

• Anti-Static & Tracking Technology: Precision-aligned rollers and anti-static belts ensure the conveyor runs silently and stays perfectly centered even under continuous load.

• Custom Lengths and Widths: Available in modular sections (3m, 6m, 9m+) to accommodate anywhere from 2 to 20 operators simultaneously.

---

Frequently Asked Questions – Hand Pick Selection Belt Conveyor

1. Why do I need a selection belt if I already have a Color Sorter? A Color Sorter is excellent for bulk defects, but the Hand Pick Selection Belt Conveyor acts as the final "Quality Gate." It allows for the removal of defects that are visually similar to the product but structurally different, ensuring a truly premium, hand-selected grade.

2. Is the belt material safe for direct contact with roasted seeds and nuts? Yes. We use FDA and EU-certified food-grade PVC or Polyurethane (PU) belts that are resistant to oils and fats, making them ideal for roasted sesame, nuts, and pulses.

3. How do the operators separate the "rejects" from the "good" product? Our conveyors are typically fitted with "Waste Chutes" located at the sides. Operators simply move the defective items into these chutes, which then guide the waste into a separate bin or a secondary discharge conveyor.

4. Can the belt speed be adjusted for different contamination levels? Absolutely. All ADDAMS Selection Belts come with a variable speed inverter. If a batch has higher contamination, you can slow the belt down to give your operators more time for a thorough inspection.

5. How is the conveyor cleaned between different product batches? The open-frame design allows for quick access. The belt surface can be wiped down with food-safe sanitizers, and the scrapers at the end of the drum automatically remove any residual dust or oil during operation.

6. Does the lighting system come integrated with the conveyor? Yes. We offer an optional overhead lighting gantry with specialized "Daylight" LED bulbs that mimic natural light, which is proven to increase defect detection rates and reduce worker fatigue.

7. Can the conveyor handle heavy bags or only loose material? This specific category is designed for free-flowing loose material (seeds, grains, powders). For moving heavy bags or boxes, we recommend our specialized Heavy-Duty Load Conveyors.

8. What is the maximum number of operators that can work on one belt? Our modular design means there is no strict limit. We commonly build 6-meter belts for 4-6 operators and 12-meter belts for up to 12 operators, depending on your throughput requirements.