Spiral Freezer

High-efficiency spiral freezing for medium to large-scale food processors.

Freezing capacity: 300 kg/h – 3000 kg/h (customizable).
Compact vertical spiral design reduces footprint by 1/3–1/2 compared to tunnel freezers.
Adjustable freezing time (15–90min), ideal for ready meals, poultry, seafood, bakery, and products not suitable for fluidized IQF.
Hygienic and easy-to-clean aluminum evaporators, high-strength spiral belts (ASHWORTH standard), and stainless steel structure.
Energy-efficient operation with advanced heat exchange, aluminum evaporators, and axial fans with low-noise motors.

Why Choose a Spiral Freezer?

Spiral freezers deliver fast, uniform freezing within a compact footprint, achieving:

High throughput per m² thanks to the vertical spiral belt path.
Consistent product quality by avoiding surface over-freezing.
Flexible freezing cycles (15–90 min) suitable for a wide range of food products.

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Product Configuration

Single Spiral Freezer: Compact, flexible infeed/outfeed, designed for 300–3000 kg/h.
Double Spiral Freezer (Type A/B/C): Double-drum structure for larger capacities and independent spiral zones (pre-cool + final freeze).
Custom Airflow: Top-blow or side-blow for different product types.
(Custom solutions available based on product type and capacity.)

Three Core Systems

Insulation System

Stainless steel polyurethane (PU) sandwich panels.
Imported high-pressure foaming for dense insulation and minimal thermal loss.

Drive System

Stainless steel three-section main shaft for easy maintenance.
High-strength “horse-hoof” spiral belt meeting ASHWORTH standards.

Aluminum alloy evaporator tubes and fins for high thermal efficiency.
Axial fans with low-temperature, waterproof motors for stable, low-noise operation.

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Key Advantages

Space-saving design: Occupies 33–50% less floor area compared to tunnel freezers of the same capacity.
Flexible integration: Multiple infeed/outfeed directions and bottom-bottom layouts for automated lines.
Hygienic & low maintenance: Open design, belt drying, and fewer wear parts.
Energy-efficient: Advanced airflow, aluminum evaporators, and optimized heat exchange.

Spiral Freezer Applications

Used in high‑capacity production lines where efficient freezing and footprint optimization are key:
- Poultry & Meat: Chicken breasts, patties, strips, sausages
- Seafood: Fish fillets, breaded shrimp
- Bakery & Prepared Foods: Pizza, rolls, pastries, ready‑meal trays
- Desserts & Dairy Blocks: Frozen cakes, cheese blocks
- Mixed product lines: Pasta, grains, mixed trays

Frequently asked questions

Q1. How do you size the spiral (belt width, tiers, residence time)?
A. We calculate based on your product type, loading pattern, target core temperature, and required throughput (kg/h).

Q3. What is the typical freezing time range?
A. 15–90 minutes, depending on product size, packaging, and target core temperature.

Q4. How do you ensure hygiene and fast cleaning?
A. Aluminum evaporators with large fins, minimal residue points, belt drying, and CIP options (manual/semi/automatic).

Q5. What standards do your belts meet?
A. The spiral-specific high-strength mesh belt meets ASHWORTH global strength standards.

Q2. Can the double spiral replace a separate pre‑cooler?
A. Yes. The two towers can be engineered to run independently, combining pre‑cool + final freezing in one unit for cooked/ready products.

Q6. Do you provide complete design services for IQF production lines?
A. Yes. We offer turnkey IQF solutions covering raw material handling, processing, quick-freezing, and packaging. Our team also helps integrate all pre- and post-processing equipment, ensuring seamless setup, cost savings, and efficient operations.

Contact & Support

Get Your Proposal in 24 Hours

Tell us just what we need to engineer it right the first time:

Product(s) & packaging type
Required throughput (kg/h)
Inlet & target core temperatures
Desired freezing time window (if known)
Available footprint (L × W × H) & utilities

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