DKN-RFT-1208 is the 1200 mm wide mesh belt model in the Kunning Cryo mesh belt freezer product line: mesh belt width 1200 mm, mesh belt length 8 m, with compressor refrigeration as the cold source. Material is spread onto the stainless steel mesh belt from the feed end and continuously travels through the low-temperature zone with the mesh belt to complete freezing. It is suitable for aquatic products, meat and poultry, prepared dishes and other production lines requiring continuous feeding and stable rhythm. The equipment does not require a liquid nitrogen storage tank and low-temperature piping; it can operate once connected to power on site and with condensation and heat dissipation conditions configured. Working temperature, cooling capacity and freezing cycle are configured according to customer materials and capacity, confirmed at the time of order.
Technical Parameters
| Item | Parameter |
|---|---|
| Product Model | DKN-RFT-1208 |
| Product Line | Mesh belt freezer (compressor refrigeration) |
| Mesh Belt Size | 1200 mm (width) × 8000 mm (length) |
| Structure Type | Continuous mesh belt conveying, material passes through low-temperature zone with mesh belt |
| Cold Source | Compressor refrigeration (mechanical refrigeration) |
| Working Temperature | Confirmed per order (configured according to material and capacity) |
| Freezing Cycle | Confirmed per order (mesh belt variable frequency speed control) |
| Discharge Center Temperature | Confirmed per order (quick freezing conditions calculated at center temperature below -18℃) |
| Total Power | Confirmed per order |
| Condensation Method | Confirmed according to site conditions and order (air-cooled / water-cooled / evaporative cooling) |
| Refrigerant | Confirmed per order |
| Power Supply Specification | 380V/50Hz |
Mesh belt size is the effective conveying surface size, which determines the conveying area of a line and is not equal to hourly capacity. Actual capacity is related to material shape, single piece weight, spreading thickness, inlet temperature and target center temperature, calculated according to customer products, not written as a fixed value.
Structure and Configuration
The equipment is a continuous tunnel structure, composed of four parts: insulated enclosure, mesh belt conveying system, evaporator and cold air circulation system, and control system.
- Insulated enclosure: inner and outer walls are formed from SUS304 food-grade stainless steel plates, with rigid polyurethane foam insulation layer in the middle to reduce cooling loss; the enclosure is equipped with access doors and observation windows for easy cleaning and maintenance.
- Mesh belt conveying system: stainless steel mesh belt equipped with variable frequency speed control motor and tensioning device, conveying speed continuously adjustable, feed and discharge ends can be docked with upstream and downstream processes.
- Evaporator and cold air circulation: the evaporator is equipped with axial flow fans and air guide plates, cold air circulates and exchanges heat on both upper and lower sides of the mesh belt, allowing materials to quickly pass through the ice crystal formation zone.
- Control system: PLC plus touch screen control, PID automatic adjustment, temperature measurement using PT100 platinum resistance; equipped with over-temperature alarm, emergency stop switch, grounding and phase sequence protection, can store multiple sets of operating programs.
Application Scenarios
| Scenario | Description |
|---|---|
| Aquatic product processing | Continuous IQF of fish, shrimp, shellfish |
| Meat and poultry processing | Continuous production lines for cut meat, poultry block freezing and IQF |
| Prepared dishes and prepared foods | Multi-category switching, calling different mesh belt speeds and temperature programs according to products |
| Pastry and fruit/vegetable particulate materials | Continuous quick freezing of granular and small block materials |
For batch-type, multi-variety small-batch production, see cabinet equipment (liquid nitrogen quick freezing cabinet); for how to choose between liquid nitrogen refrigeration and mechanical refrigeration, see Comparison of Liquid Nitrogen Quick Freezing and Mechanical Refrigeration Quick Freezing; for the conversion relationship between freezing cycle and mesh belt speed, see Freezing Cycle and Mesh Belt Speed of Liquid Nitrogen Quick Freezing Tunnel.
Installation Conditions
- Site: reserve space for operation, maintenance and feed/discharge connection according to equipment external dimensions (external dimensions confirmed per order).
- Power: 380V/50Hz, wiring and grounding according to total power and on-site power distribution capacity.
- Heat dissipation: compressor condenser requires ventilation or cooling water conditions, workshop reserves heat dissipation space and maintenance access; water-cooled or evaporative cooling requires supporting cooling water circuit.
- Floor and drainage: calculate floor load-bearing according to equipment full-load weight; workshop sets slope and drainage ditch according to cleaning and drainage requirements.
Warranty and After-Sales
Complete machine warranty for one year; solution provided within 2 hours after receiving request, on-site arrival within 24 hours, fault elimination within 72 hours; one free on-site service per year, lifetime technical support.
Frequently Asked Questions
What does 1208 in DKN-RFT-1208 represent?
According to Kunning Cryo equipment numbering rules, the numeric segment for mesh belt and tunnel type models is “mesh belt width (mm÷100) + mesh belt length (m)”, so 1208 means mesh belt width 1200 mm and mesh belt length 8 m. Mesh belt size is a design-fixed value, determining the conveying surface of a line; capacity varies with materials and packaging and is not written into the numbering.
Does this equipment use liquid nitrogen or a compressor?
It uses compressor refrigeration, i.e., mechanical refrigeration. It does not require a liquid nitrogen storage tank and low-temperature piping; it can operate once connected to power on site and with condensation and heat dissipation conditions configured. Operating costs are unrelated to liquid nitrogen prices.
How are capacity and freezing time calculated?
Single piece weight, spreading thickness, inlet temperature, target center temperature and shift output requirements need to be provided, calculated according to specific materials; mesh belt speed is variable frequency adjustable, freezing cycle adjusts with products. The parameter table does not list fixed hourly capacity because capacity varies with materials, and fixing it would be misleading.
What are the working temperature, cooling capacity and total power?
These three items are configured according to customer materials, capacity and on-site power conditions. Local materials do not have fixed values; confirmed per order. After working conditions are confirmed, we provide selection parameters and power distribution requirements.
How to choose between DKN-RFT-1208 and longer mesh belt lines in the same series?
Models with the same mesh belt width and longer mesh belt have longer residence time in the low-temperature zone, suitable for materials with thicker single pieces or higher capacity; for thin pieces and small batches, an 8 m mesh belt with lower belt speed is sufficient, calculated according to material freezing curve and shift output.
To verify the model according to materials and capacity, visit Contact Us and provide single piece weight, target center temperature and shift output requirements.