318 Small Automatic Three-Bone Removal & Filleting Machine

Executive Summary

The 318 Small Automatic Three-Bone Removal & Filleting Machine is an industrial-grade aquatic processing unit engineered to mechanically extract the central spine and associated rib bones from small to medium pelagic species. By replacing manual knife handling with a synchronized rotary cutting mechanism, this equipment standardizes fillet dimensions, reduces physical protein degradation, and consistently maintains HACCP sanitary guidelines. It serves as a central asset for seafood processing facilities prioritizing yield optimization and structural flesh integrity under continuous operation.

• Throughput Capacity: Processes 40 to 60 fish per minute, significantly lowering labor dependencies on the processing floor.
• Dimensional Precision: Mechanically accommodates species weighing between 10 g and 500 g, processing fish with a maximum profile height of 8 cm.
• Sanitary Compliance: Fully constructed from SUS304 stainless steel with IP65-rated enclosures to withstand high-pressure chemical washdowns.

Technical Specifications

Core Features & Advantages

• Synchronized Kinematic Centering (Yield Maximization): Employs an adjustable V-belt track that mechanically aligns the dorsal axis of the fish prior to the cutting zone. This structural control ensures the rotary blades strictly target the central spine, maximizing usable butterfly or single fillets and improving raw material recovery rates.
• High-Torque Continuous Drive (Operational Stability): Powered by an optimized 1.5 kW 3-phase induction motor, the transmission delivers uninterrupted torque to the blade assemblies. This specific power setup prevents blade stalling when processing denser skeletal structures, ensuring clean, continuous lateral incisions.
• Washdown-Ready Architecture (Sanitation & OSHA Compliance): The 280 kg open-frame chassis eliminates bacterial trap points. Designed with sloped stainless surfaces and sealed mechanical housings, the unit accelerates daily shift cleaning protocols while adhering to rigorous food safety standards.
• Modular Line Integration (Seamless Flow): With a compact physical footprint of 138 x 78 x 170 cm, the 318 model avoids floor space bottlenecks. Processed fillets can be discharged directly onto conveyors linked to comprehensive fish & seafood processing machinery layouts, creating an uninterrupted flow toward freezing or packaging stages.

Working Principle & Structural Design

The operational framework of the 318 model relies on precise physical alignment combined with high-speed rotary dissection. Raw or chilled fish are manually oriented and fed onto the mechanical infeed chute. A variable-speed synthetic V-belt grips the exterior of the fish, applying uniform lateral pressure to stabilize it regardless of slight variations in girth or length.

As the material enters the internal cutting chamber, a series of calibrated rotary circular blades execute bilateral incisions along the skeletal structure. The primary blades separate the flesh from the central spine, while secondary angled mechanisms sever the remaining pin and rib bones (three-bone extraction). An integrated water manifold operates continuously over the blade assembly, serving the dual purpose of preventing thermal damage to the protein via friction and flushing the extracted skeletal waste through the central discharge axis.

Industry Use Cases & Integrated Solutions

In high-volume canning or IQF (Individually Quick Frozen) production lines, the 318 equipment proves highly efficient for handling uniform batches of small pelagic fish. During a standard operational shift processing 300 g mackerel, a single unit can sustain a feed rate of 50 fish per minute. This equates to over 900 kg of raw material processed per hour, drastically reducing the required headcount on the trimming line.

Because the unit handles sensitive species like saury and yellow croaker without applying crushing force, the visual integrity of the fillet is preserved. When operating as part of a Turnkey operation, the machine's discharge height is engineered to align with downstream automated sorting belts, visual inspection tables, or direct battering/breading applications, minimizing manual handling between processing phases.

Why Choose HSYL for Your Production Line?

Hongsheng Yuanlin (HSYL) engineers industrial aquatic machinery with strict adherence to CE manufacturing directives. By utilizing standardized, globally sourced pneumatic and electrical components within the control panel, we ensure that your regional maintenance teams have immediate access to replacement parts, avoiding costly proprietary delays.

Before shipment, HSYL conducts rigorous Factory Acceptance Testing (FAT) utilizing your specified fish profiles. Our project management scope extends to global site installation, mechanical commissioning, and intensive operator training, ensuring the 318 filleting unit achieves the exact throughput calculations defined during the procurement phase.

Call To Action

To acquire detailed 2D/3D factory integration layouts, precise capacity calculations, or equipment schematics for the 318 Small Automatic Three-Bone Removal & Filleting Machine, please contact our engineering division. Request a formal quotation or arrange a physical testing session via video link to confirm the equipment's compatibility with your target aquatic species.