Blast Freezer

Walk-In Blast Freezer: Bulk Trolley-In Logistics for Heavy Meat Processing

The BFR-500 Walk-In Blast Freezer Room addresses the logistical bottleneck of bulk freezing in massive meat and poultry processing plants. Designed to accept fully loaded roll-in trolleys directly from the processing floor, this heavy-duty shock freezing facility eliminates the need for manual tray-by-tray loading. By pushing extremely high-velocity -40 degrees Celsius air across 500 kg batch loads, it rapidly drives the core temperatures of thick primals or boxed poultry down to -18 degrees Celsius, halting bacterial proliferation and preventing moisture evaporation during the critical chilling phase.

Ultra-low Temperature Shock Freezer Features

1.The kitchen freezer has the powerful refrigerating system and heat exchanger.

2. The catering freezer has ltalian ASPERA compressor, blast evaporimeter, and dual cooling system.

3. For its microcomputer temperature control, its cooling temperature is adiustable.

4. The chamber is made of double-sided stainless steel plate. And the PU insulating layer is 120mm-thick and high-densitypolyurethane foam material.

5. Blast freezer is equipped with copper pipes, double radiator.

6. The commercial upright freezer is noncorrosive and has luxury appearance.

High-Volume Thermodynamic Engineering

Freezing half a ton of dense biological material within hours requires thermodynamic brute force balanced with precise aerodynamic control. The BFR-500 utilizes a heavy-duty Bitzer 2-stage screw compressor mounted on an external skid, generating massive refrigeration tonnage without introducing heat or noise into the immediate factory processing floor.

• Ceiling-Mounted Dual Discharge Evaporators: Large-diameter axial fans draw returning air forcefully through the center evaporator block and blast sub-zero air down both opposing walls. This creates a turbulent vortex that penetrates deeply between the trolley racks, ensuring that the inner core trays freeze at the exact same velocity as the exterior trays.
• 150mm Cam-Lock Insulation: Because ambient factory air is warm and heavily saturated with moisture, the room is constructed from 150mm thick polyurethane panels. These panels interlock via internal eccentric cams, forging an airtight, vapor-proof seal that unconditionally prevents thermal leakage and exterior condensation.
• Reinforced Heated Floor: A standard concrete floor suffers frost heave and cracking under extreme sub-zero static loads. The BFR-500 features an insulated SUS304 reinforced floor with embedded low-voltage heating cables, preventing ice expansion while safely supporting the structural weight of steel trolleys carrying maximum capacity loads.

Integration with Heavy Meat Processing Logistics

In high-throughput slaughterhouses, physical handling time translates directly to labor expenses. Because the internal floor is structurally flush with a supplied exterior ramp (or recessed directly into the factory floor), workers effortlessly roll carts directly from primary breakdown stations deep into the freezer. This unbroken logistics chain is vital when integrating the freezer into a large-scale poultry processing line, where hundreds of birds must be chilled simultaneously prior to packaging. Upon completion of the freezing cycle, the trolleys are seamlessly rolled out to palletizing zones, ensuring that heavy-duty machinery from the industrial meat processing equipment sectors never sits idle waiting for cold-room capacity to clear.

Industrial Duty Defrost and Airflow Management

Processing moisture-rich meat unavoidably generates significant atmospheric water vapor, leading to rapid ice accumulation on evaporator coils. To maintain 100 percent freezing efficiency during back-to-back 500kg runs, the system incorporates an autonomous hot-gas defrost cycle. When pressure sensors detect a drop in static airflow—indicating ice bridging across the aluminum fins—the logic controller temporarily reverses the refrigerant flow. This strips the ice block directly into a heated drain pan in a fraction of the time required by standard electric induction heaters, allowing operators to immediately load the subsequent trolley without suffering extended downtime.