Technical description • Model: FSL250A. • Equipment type: industrial spiral freezer for continuous rapid food freezing. • Production capacity: 250kg/h. • Product inlet temperature: +4°C. • Product outlet temperature: –18°C. • Freezer operating temperature: –35°C. • Adjustable residence/freezing time: 10–50 minutes. • Refrigerant specified for the FSL250A system: R448A. • Freezer refrigeration capacity: 38kW. • Maximum product height: ≤60mm. • Conveyor belt width: 500mm. • Total belt length: 105m. • Number of spiral belt levels: 9. • Drum diameter: 2000mm. • Product inlet/outlet conveyors: 1000/500mm. • Stepless belt speed adjustment through frequency conversion. • Food-grade stainless steel conveyor belt. • Ultra-high molecular weight polyethylene wear-resistant slide tracks. • Required water inlet pressure: ≥3kg/cm². • Freezer system power: 7.1kW, 380V, 50Hz. • Freezer body dimensions: 7000×4500×2900mm, excluding inlet and outlet conveyor length. • 150mm polyurethane insulated panels with density ≥40kg/m³. • SUS304 stainless steel outer plate ≥0.8mm thick. • Internal structure manufactured from SUS304 stainless steel with argon arc welding. • Aluminium finned-tube evaporator with stainless steel support structure. • Manual water defrosting system. • Low-noise axial fans with aluminium alloy blades and moisture- and water-resistant motors. • Main electrical components from Schneider and Siemens DLX. • Motors and external electrical components with minimum IP55 protection rating. • Emergency stop devices installed at inlet and outlet areas. • Quoted commercial configuration includes a refrigeration unit equipped with a Bitzer HSN7451-60Y screw compressor. • Compressor unit: PSHL-60Y. • Compressor unit refrigeration capacity: 38.5kW at –40/+40°C conditions. • Compressor unit input power: 41.5kW, 380V/50Hz. • Compressor theoretical displacement: 192m³/h at 50Hz. • Compressor capacity regulation: 100% / 75% / 50%. • Liquid-cooled oil cooling system. • Compressor unit dimensions: 2000×1500×1750mm. • Compressor unit weight: approximately 1300kg. • Refrigeration system specified with ZFLA360 evaporative condenser. • Condenser heat rejection capacity: 360kW. • Condenser airflow: 45,000m³/h. • Condenser fans: 2 × 1.5kW. • Condenser water pump: 2.2kW. • Condenser dimensions: 2200×1600×3760mm. Commercial description The First Cold Chain FSL250A is an industrial spiral freezer designed for food processing plants requiring rapid, continuous freezing while maintaining a constant product flow. Its 250kg/h capacity and 9-level, 105m-long spiral conveyor system make efficient use of vertical space while allowing residence time to be adjusted between 10 and 50 minutes according to product characteristics and process requirements. The commercial configuration combines the FSL250A freezer with a refrigeration unit equipped with a Bitzer HSN7451-60Y screw compressor, providing a refrigeration solution designed to reduce product temperature from approximately +4°C to –18°C while operating the freezer chamber at –35°C. Variable-frequency belt control allows conveyor speed and consequently freezing time to be adapted to different products. The system is particularly suitable for industrial freezing of burger patties, breaded schnitzels, croquettes, fresh chorizo sausages and other meat or prepared food products of similar dimensions. The technical proposal specifically references 100g burger patties with 18mm thickness, 90g breaded schnitzels with 10mm thickness, 25g croquettes with Ø28mm diameter and 90g fresh chorizo sausages with Ø25mm diameter. Its food-grade stainless steel belt, SUS304 internal structure, 150mm insulated enclosure and continuously adjustable conveyor speed are intended for professional food-processing environments. Emergency stops at both inlet and outlet, IP55 electrical protection and manual water defrosting complement the system for continuous industrial freezing operations. Keywords industrial spiral freezer, quick freezing system, continuous food freezer, 250kg/h spiral freezer, burger patty freezer, meat freezing machine, croquette freezer, sausage freezer, breaded product freezer, industrial –18°C freezer, –35°C spiral freezer, 500mm conveyor freezer, 9 tier spiral freezer, Bitzer compressor freezer, Bitzer refrigeration system, food processing freezer, continuous freezing equipment, SUS304 spiral freezer, R448A freezer, First Cold Chain FSL250A

Technical description • Model: FSL250A. • Equipment type: industrial spiral freezer for continuous rapid food freezing. • Production capacity: 250kg/h. • Product inlet temperature: +4°C. • Product outlet temperature: –18°C. • Freezer operating temperature: –35°C. • Adjustable residence/freezing time: 10–50 minutes. • Refrigerant specified for the FSL250A system: R448A. • Freezer refrigeration capacity: 38kW. • Maximum product height: ≤60mm. • Conveyor belt width: 500mm. • Total belt length: 105m. • Number of spiral belt levels: 9. • Drum diameter: 2000mm. • Product inlet/outlet conveyors: 1000/500mm. • Stepless belt speed adjustment through frequency conversion. • Food-grade stainless steel conveyor belt. • Ultra-high molecular weight polyethylene wear-resistant slide tracks. • Required water inlet pressure: ≥3kg/cm². • Freezer system power: 7.1kW, 380V, 50Hz. • Freezer body dimensions: 7000×4500×2900mm, excluding inlet and outlet conveyor length. • 150mm polyurethane insulated panels with density ≥40kg/m³. • SUS304 stainless steel outer plate ≥0.8mm thick. • Internal structure manufactured from SUS304 stainless steel with argon arc welding. • Aluminium finned-tube evaporator with stainless steel support structure. • Manual water defrosting system. • Low-noise axial fans with aluminium alloy blades and moisture- and water-resistant motors. • Main electrical components from Schneider and Siemens DLX. • Motors and external electrical components with minimum IP55 protection rating. • Emergency stop devices installed at inlet and outlet areas. • Quoted commercial configuration includes a refrigeration unit equipped with a Bitzer HSN7451-60Y screw compressor. • Compressor unit: PSHL-60Y. • Compressor unit refrigeration capacity: 38.5kW at –40/+40°C conditions. • Compressor unit input power: 41.5kW, 380V/50Hz. • Compressor theoretical displacement: 192m³/h at 50Hz. • Compressor capacity regulation: 100% / 75% / 50%. • Liquid-cooled oil cooling system. • Compressor unit dimensions: 2000×1500×1750mm. • Compressor unit weight: approximately 1300kg. • Refrigeration system specified with ZFLA360 evaporative condenser. • Condenser heat rejection capacity: 360kW. • Condenser airflow: 45,000m³/h. • Condenser fans: 2 × 1.5kW. • Condenser water pump: 2.2kW. • Condenser dimensions: 2200×1600×3760mm. Commercial description The First Cold Chain FSL250A is an industrial spiral freezer designed for food processing plants requiring rapid, continuous freezing while maintaining a constant product flow. Its 250kg/h capacity and 9-level, 105m-long spiral conveyor system make efficient use of vertical space while allowing residence time to be adjusted between 10 and 50 minutes according to product characteristics and process requirements. The commercial configuration combines the FSL250A freezer with a refrigeration unit equipped with a Bitzer HSN7451-60Y screw compressor, providing a refrigeration solution designed to reduce product temperature from approximately +4°C to –18°C while operating the freezer chamber at –35°C. Variable-frequency belt control allows conveyor speed and consequently freezing time to be adapted to different products. The system is particularly suitable for industrial freezing of burger patties, breaded schnitzels, croquettes, fresh chorizo sausages and other meat or prepared food products of similar dimensions. The technical proposal specifically references 100g burger patties with 18mm thickness, 90g breaded schnitzels with 10mm thickness, 25g croquettes with Ø28mm diameter and 90g fresh chorizo sausages with Ø25mm diameter. Its food-grade stainless steel belt, SUS304 internal structure, 150mm insulated enclosure and continuously adjustable conveyor speed are intended for professional food-processing environments. Emergency stops at both inlet and outlet, IP55 electrical protection and manual water defrosting complement the system for continuous industrial freezing operations. Keywords industrial spiral freezer, quick freezing system, continuous food freezer, 250kg/h spiral freezer, burger patty freezer, meat freezing machine, croquette freezer, sausage freezer, breaded product freezer, industrial –18°C freezer, –35°C spiral freezer, 500mm conveyor freezer, 9 tier spiral freezer, Bitzer compressor freezer, Bitzer refrigeration system, food processing freezer, continuous freezing equipment, SUS304 spiral freezer, R448A freezer, First Cold Chain FSL250A