Spiral Tower Conveyor
The Spiral Tower Conveyor (also known as a spiral cooling tower or spiral freezer) is a compact, continuous vertical conveying system designed to maximize product dwell time within a minimal footprint.
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Spiral Tower Conveyor
Category:
Spiral Tower
Product Description
The Spiral Tower Conveyor (also known as a spiral cooling tower or spiral freezer) is a compact, continuous vertical conveying system designed to maximize product dwell time within a minimal footprint. The system features a stainless steel mesh belt or plastic modular belt spiraling around a central rotating tower, creating multiple layers of conveying surface. This allows products to travel long distances—often several hundred meters—while occupying very little floor space .
The belt enters tangentially at the bottom, spirals around the tower for the required number of layers, and exits at the top (or vice versa). The system can be configured as single-spiral (in/out at different levels) or double-spiral (in/out at same level), with multiple infeed and outfeed tangent positions to suit various production line layouts .
This design is ideal for applications requiring extended dwell time, such as cooling, freezing, proofing, or drying, during continuous production .
Specifications
| Parameter | Range / Options |
| Belt Material | Stainless Steel (SUS304) mesh belt, Food-grade plastic modular belt |
| Belt Width | 200mm – 1376mm (customizable) |
| Number of Layers | Customizable (based on required dwell time and throughput) |
| Layer Pitch / Effective Spacing | Customizable (based on product height) |
| Tower Diameter | 1.5m – 12m (customizable) |
| Conveying Length | 50m – 1200m (customizable) |
| Conveying Height | Up to 6m+ (customizable) |
| Conveying Type | Single-spiral (up only or down only), Double-spiral (up then down) |
| Drive Method | Central rotating drum drive, or layer-by-layer gear drive with intelligent power transmission |
| Speed Control | Variable frequency drive (inverter) for stepless speed adjustment |
| Frame Material | Carbon steel (powder-coated), Stainless Steel (SUS304/201) |
| Capacity | 200 kg/hour – 3000 kg/hour (customizable) |
| Cooling/Freezing Time | 20 – 120 minutes (customizable) |
Applications
Spiral tower conveyors are widely used in industries requiring extended product dwell time within a compact footprint :
Food & Bakery: Cooling freshly baked bread, cakes, pastries, hamburger buns, and toast – allows products to cool to room temperature before packaging
Freezing & Quick-Freezing: Rapid freezing of dumplings, meat patties, seafood (shrimp, lobster), fish, prepared foods, and frozen desserts
Dough Proofing: Controlled fermentation of bread and pastry dough products
Thawing: Thawing frozen seafood and meat products
Pharmaceutical & Chemical: Cooling or drying of pharmaceutical products and chemical materials
Electronics & Light Industry: Cooling of electronic components during production
Typical Applications:
Connecting different production stages (oven to packaging)
Creating buffer zones or accumulating products during continuous production
Integrating with sorting systems for automated logistics workflows
Our Advantages
| Feature | Description |
| Compact footprint, long conveying distance | Achieves hundreds of meters of conveying path within minimal floor space – maximizes productivity without expanding plant area |
| Flexible configuration | Available in single-spiral (in/out at different levels) or double-spiral (in/out at same level) – adapts to various production line layouts |
| Stable & gentle conveying | Smooth spiral path ensures stable product handling without tipping or damage – ideal for delicate baked goods |
| Stainless steel construction | SUS304 stainless steel belt and frame – corrosion-resistant, hygienic, and easy to clean; meets food-grade standards |
| Advanced layer-by-layer drive technology | Intelligent power transmission system automatically adjusts belt tension per layer, ensuring uniform running and preventing jamming or belt turnover |
| Energy efficient | Single drive motor or independent layer gears with smart power transmitters optimize energy consumption |
| Easy maintenance | Double-sided nylon guide rails and low-friction PP rails require no lubrication; modular belt sections can be replaced individually |
| Customizable | Belt width, number of layers, layer spacing, tower diameter, dwell time, and infeed/outfeed positions can all be tailored to specific product and throughput requirements |
FAQ
Q1: What is the difference between a single-spiral and a double-spiral tower conveyor?
A single-spiral conveyor has the belt enter at the bottom and exit at the top (or vice versa) – product moves in one direction through the tower. A double-spiral conveyor uses two interconnected spirals or a single spiral with a transition – the belt spirals up one tower, transitions across, and spirals down the other tower, allowing the product to enter and exit at the same height, which is convenient for production line integration .
Q2: What is the typical cooling or freezing time?
Cooling/freezing time ranges from 20 to 120 minutes, depending on product type, required final temperature, and system configuration .
Q3: What types of products can it handle?
It is suitable for baked goods (bread, cakes, pastries), frozen foods (dumplings, meat patties, seafood), dough products for proofing, and packaged foods. Products should be stable enough to sit on the belt surface without tipping during the spiral movement .
Q4: What is the maximum belt length?
Depending on the number of layers and tower diameter, total belt length can range from 50m to 1200m .
Q5: Is the conveyor easy to clean?
Yes. Systems using SUS304 stainless steel belts or food-grade plastic modular belts are hygienic and easy to clean. Some suppliers offer automatic cleaning systems that complete belt cleaning within 1–2 hours .
Q6: What drive technologies are available?
Two main types: Central drum drive – the belt is driven by the rotating drum, common in simpler designs. Layer-by-layer gear drive – each layer has its own gear driven by a central shaft; each gear includes an intelligent power transmitter to automatically adjust tension, preventing belt jamming or turnover .
Q7: What are the maintenance requirements?
Maintenance is minimal. High-quality designs use double-sided nylon guide rails and low-friction PP rails that require no lubrication and can last for years without replacement. Modular belt sections can be replaced individually if damaged .
Q8: What temperature range can it handle?
For freezing applications, the system can operate at temperatures as low as -40°C . For cooling applications, it operates at ambient or refrigerated temperatures. High-temperature designs are available for drying applications.
Contact Us
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Jinan，Shandong, China
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Company Profile
Jinan Stark Machinery Co., Ltd. is a professional manufacturer of conveying equipment, headquartered in Jinan, Shandong, China. With over 10 years of industry experience, we specialize in the R&D, production, and sales of high-quality material handling solutions.
Our products are exported to the United States, Southeast Asia, Europe, and beyond, earning trust from clients worldwide. We provide end-to-end services, including technical consulting, design, installation, commissioning, and after-sales support.
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