Double Layer Belt Conveyor

The Double Layer Belt Conveyor is a essential conveying apparatus deployed in poultry slaughtering and cutting lines. As defined by the industry standard for livestock and poultry slaughtering equipment, it refers to a conveyor configured with upper and lower belt conveying layers. Its primary function in poultry processing is to facilitate material flow between deboning, trimming, and portioning stations. By utilizing two independently operating belts, the equipment separates fresh meat products from by-products or empty trays, thereby reducing cross-contamination risks and improving logistical efficiency on the processing floor.

Construction and Material Specifications

The frame is typically fabricated from 304 stainless steel, offering superior corrosion resistance suitable for the high-humidity, washdown-intensive environment of slaughterhouses. Adjustable feet ensure stability on uneven floors. The conveyor belt is made of food-grade, oil-resistant white belting or PU material, compliant with food-contact safety requirements. Common belt widths range from 400 mm to 600 mm, selectable based on throughput and workstation layout. The drive system employs a stepless speed-reduction motor or frequency inverter, allowing linear speeds adjustable within the 6–10 m/min range to match varying cutting rhythms.

Application in Poultry Cutting Lines

In poultry cutting rooms, the double layer conveyor is typically positioned alongside deboning or trimming workstations. The upper belt delivers poultry parts—such as breast, leg quarters, or whole-bird cuts—to operator tables, while the lower belt collects trimmed finished products or returns empty trays. In certain configurations, the two layers can separately handle “bone-in cuts” and “boneless trimmed meat,” creating a physical barrier that aligns with hygienic zoning requirements for raw and ready-to-cut products. Compared with single-layer conveyors, the double-layer design nearly doubles the effective conveying surface within the same footprint, making it particularly advantageous for retrofit projects with limited floor space.

Selection and Compliance Notes

According to relevant industry standards for livestock and poultry slaughtering equipment, typical basic parameters for double-layer conveyors include a working width of 500–600 mm, working heights of approximately 800 mm (lower) and 1650 mm (upper), and a power range of 0.55–2.2 kW, with customization available to suit specific ergonomic requirements. When procuring, verify compliance with NY/T 3368-2018 Livestock and poultry slaughtering and processing equipment—Dividing conveyor, particularly the technical thresholds for belt slip rate (≤3%) and deviation (≤±2 mm), and request material certificates for food-grade belting. Routine maintenance should focus on periodic belt tension checks and splice integrity inspection, with belt-surface cleaning and sanitizing performed after each shift to extend service life and maintain hygiene ratings.