DKN-RFT-1618 is the 1600 mm wide, 18 m long mesh belt model in the Kunning Cryo mesh belt freezer product line: material is spread flat on the mesh belt from the infeed end, passes through the low-temperature zone with the belt for continuous freezing, and is output from the discharge end. According to Kunning Cryo equipment numbering rules, the numeric segment 1618 is read as mesh belt width 1600 mm and mesh belt length 18 m; compared with the 12 m model of the same width, it has 6 m more freezing section, suitable for materials with relatively thick individual pieces, relatively high moisture content, and longer low-temperature residence time requirements. The equipment uses compressor refrigeration as the cold source, requires no liquid nitrogen tank or low-temperature piping, and can operate once connected to power on site with condensation and heat dissipation conditions in place.
Technical Parameters
| Item | Parameter |
|---|---|
| Product Model | DKN-RFT-1618 |
| Product Line | Mesh belt freezer (compressor refrigeration) |
| Mesh Belt Size | 1600 mm (width) × 18000 mm (length) |
| Structure Type | Continuous mesh belt conveying, material passes through low-temperature zone with the 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 Core Temperature | Confirmed per order (quick freezing conditions calculated at core temperature below -18℃) |
| Total Power | Confirmed per order |
| Condensation Method | Confirmed per site conditions and order (air-cooled / water-cooled / evaporative) |
| Refrigerant | Confirmed per order |
| Power Supply Specification | 380V/50Hz |
Mesh belt size refers to the effective conveying surface dimensions. Actual capacity is related to material shape, individual piece weight, spreading thickness, infeed temperature, and target core temperature, and is calculated according to customer products.
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 in between; the enclosure is provided with access doors in sections along the length for easy cleaning and defrosting.
- Mesh belt conveying system: stainless steel mesh belt with variable frequency speed control motor and tensioning device, speed continuously adjustable; the tensioning and deviation correction mechanism of the 18 m long line is arranged along the full length, and the infeed and discharge ends can be docked with upstream and downstream process conveying lines.
- Evaporator and cold air circulation: the evaporator is equipped with axial flow fans and air guide plates, and cold air circulates for heat exchange on both upper and lower sides of the mesh belt, allowing the material surface to quickly pass through the ice crystal formation zone; the long line is arranged with evaporators in sections, and each section is set separately according to the process.
- 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 and other safety designs.
Applicable Scenarios
| Scenario | Description |
|---|---|
| Aquatic processing | Continuous IQF of fish, shrimp, shellfish, requiring longer low-temperature residence time |
| Meat and poultry processing | Block freezing and IQF of cut meat and poultry, categories with relatively thick individual pieces |
| 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 particulate and small block materials, synchronized with upstream and downstream process rhythms |
For batch-type, small-batch multi-variety production, see cabinet equipment (liquid nitrogen freezer cabinet); for how to choose between liquid nitrogen and mechanical refrigeration, see Comparison of Liquid Nitrogen Quick Freezing and Mechanical Refrigeration Quick Freezing; for how to match mesh belt speed with freezing cycle, see Freezing Cycle and Mesh Belt Speed of Liquid Nitrogen Quick Freezing Tunnels.
Installation Conditions
- Site: the equipment occupies a relatively long area along the length direction; reserve space for operation, maintenance, and infeed/discharge docking according to overall dimensions (overall dimensions confirmed per order).
- Floor and drainage: calculate floor load-bearing according to the equipment’s fully loaded weight; the workshop is provided with slope and drainage trench according to cleaning requirements.
- Power supply: 380V/50Hz, wiring and grounding according to total power and on-site power distribution capacity.
- Heat dissipation: the compressor condenser requires ventilation or cooling water conditions; reserve heat dissipation space and maintenance access in the workshop.
Warranty and After-Sales
One-year warranty for the entire machine; a solution is provided within 2 hours after receiving the request, arrival on site within 24 hours, and troubleshooting within 72 hours; one free on-site service per year, with lifetime technical support.
Frequently Asked Questions
What does 1618 in DKN-RFT-1618 represent?
According to Kunning Cryo equipment numbering rules, the numeric segment of tunnel and mesh belt models is “mesh belt width (mm÷100) + mesh belt length (m)”, so 1618 means mesh belt width 1600 mm and mesh belt length 18 m. Mesh belt size is a fixed value and does not equal hourly capacity.
Does this equipment use liquid nitrogen or a compressor?
It uses compressor refrigeration, i.e., mechanical refrigeration. Unlike liquid nitrogen quick freezing tunnels, it does not require a liquid nitrogen tank or low-temperature piping, and can operate once connected to power on site with condensation and heat dissipation conditions in place.
How to choose between DKN-RFT-1618 and DKN-RFT-1612?
Both have the same mesh belt width (1600 mm), and the difference is in mesh belt length: 1618 is 18 m, 1612 is 12 m. The longer freezing section provides more ample residence time for materials in the low-temperature zone, suitable for materials with relatively thick individual pieces, relatively high moisture content, or relatively high infeed temperature; production lines with thin materials and short freezing time can use the 12 m model. Which one to choose specifically is calculated according to material and shift output.
What are the working temperature, refrigeration capacity, and total power?
All three items are configured according to customer material, capacity, and on-site power conditions, with no fixed values, and are confirmed per order. After working conditions are confirmed, the corresponding selection parameters and power distribution requirements are provided.
What discharge core temperature can be achieved, and how is capacity calculated?
Quick freezing conditions are calculated at material core temperature below -18℃, and the specific value is related to material thickness, moisture content, and residence time, and is confirmed per order. Capacity calculation requires providing individual piece weight, spreading thickness, infeed temperature, target core temperature, and shift output requirements.
To verify the model according to material and capacity, please visit Contact Us and provide individual piece weight, target core temperature, and shift output requirements.