Introducing the SPEEDCRYO® 1500KG Semi Contact Plate Freezer

The SPEEDCRYO® 1500KG Semi Contact Plate Freezer is a cutting-edge food freezing equipment that seamlessly integrates air-cooling and semi-contact freezing methods. By having aluminum plates make direct contact with the lower surface of food (placed in aluminum trays or stainless steel pans), it optimizes freezing speed. The inclusion of axial flow fans within the equipment's enclosure creates internal airflow, boosting heat exchange efficiency and aiding in the removal of water vapor and frost during the freezing process.

Key Components and Features of the SPEEDCRYO® 1500KG Semi Contact Plate Freezer:

Freezing Chamber

Constructed with double-sided SUS304 stainless steel and polyurethane foam, the chamber boasts high hygiene standards and minimal corrosion risk. With a thickness of 150mm, the chamber houses multiple layers of aluminum plates and axial flow fans. Fixed gaps between each aluminum plate allow for organized product placement (total gap of 150mm, recommended tray height ≤110mm, customizable).

Aluminum Plates

The core component of the SPEEDCRYO® 1500KG semi-contact plate freezer, these plates are crafted from high-purity aluminum alloy, providing excellent thermal conductivity and corrosion resistance. Featuring a top flat surface and a bottom aluminum tube structure, the design balances air convection and refrigeration radiation, resulting in faster freezing compared to traditional air-blowing freezers. This high-spec aluminum evaporator is suitable for both land-based and ship-based rack freezing warehouses.

The SPEEDCRYO® 1500KG semi-contact plate freezer comes with 10 layers of 3500x1200mm aluminum plates, each accommodating 15 trays sized 400x600x80mm, totaling 150 trays per batch.

Axial Flow Fans

The SPEEDCRYO® 1500KG semi-contact plate freezer is equipped with two sets of 1.5KW, 1435 r/min axial flow fans, positioned on the side of the freezing chamber. Their role is to generate internal airflow, enhancing heat exchange efficiency and assisting in the removal of water vapor and frost during the freezing process.

Refrigeration System

Comprising components such as a compressor, condenser, evaporator, and expansion valve, the system circulates refrigerant to provide cooling capability. The refrigerant enters the aluminum plates through refrigeration pipes, extracting heat from the product. Equipped with a 60HP Refcomp SRC-S-183ZL refrigeration unit, known for its stability and reliability at a lower cost compared to BITZER units. If requested, we can replace it with a BITZER compressor unit.

Control System

The control system, including an electrical control cabinet, temperature sensors, and pressure sensors, monitors and controls the freezer's operation for safety and stability. It also facilitates hot gas defrosting, quickly releasing products from the aluminum plates and enhancing production efficiency.

Integrated Design

The SPEEDCRYO® semi-contact plate freezer offers both integrated and split design options. The integrated design connects the freezing chamber and refrigeration unit, fully assembling and debugging them before delivery. Users only need to connect an external water-cooled cooling tower, reducing installation steps and complexity. For scenarios where the refrigeration unit must be placed outdoors, we provide a split design, allowing flexibility with the freezing chamber and compressor unit not fixed together.

Drawing of SPEEDCRYO® 1500KG Semi Contact Plate Freezer

Specifications of SPEEDCRYO^® 1500KG Semi Contact Plate Freezer

Semi Contact Plate Freezer and Full Contact Plate Freezer

Semi Contact Plate Freezer and Full Contact Plate Freezer belong to the Contact Plate Freezer category. The Contact Plate Freezer is designed for bulk freezing of various products, including seafood, meat, vegetables, and pasta. The Semi Contact Plate Freezer utilizes a combination of air cooling and contact freezing through aluminum plates, enhancing freezing speed. In contrast, the Full Contact Plate Freezer achieves efficient heat exchange by utilizing the upward and downward movement of aluminum plates, ensuring full contact with the product.

The Full Contact Plate Freezer rapidly freezes food by placing it between metal plates with high thermal conductivity, leading to a quick contact freezing process. On the other hand, the Semi Contact Plate Freezer freezes food directly on an aluminum plate, with the upper part benefiting from forced air circulation. Although the freezing speed is slightly slower compared to contact freezing, the Semi Contact Plate Freezer boasts a simpler mechanism, making it more cost-effective with lower failure rates and greater user convenience.

Contact Plate Freezer VS Air Blast Freezer

Contact Plate Freezer and Air Blast Freezer are both types of indirect freezing equipment, using a cooling medium to exchange heat with food for freezing. The key difference is that Air Blast Freezer uses air, while Contact Plate Freezer utilizes aluminum plates and air. In Semi Contact Plate Freezer, aluminum plates under the food enhance heat conduction, with cold air blown over the top for convective heat exchange. Full Contact Plate Freezer sandwiches food between two aluminum plates, maximizing contact for optimal heat conduction.

Compared to Air Blast Freezer, Contact Plate Freezer achieves a lower central temperature in the food within the same freezing time, reducing moisture loss and frost formation. It's suitable for large-scale, high-efficiency industrial food freezing, especially for preserving taste, preventing deformation, and avoiding discoloration. However, Contact Plate Freezer's manufacturing cost is higher due to the need for quality aluminum plates, making it more expensive than Air Blast Freezer.