1,000-Ton Strawberry CA Cold Storage — Dandong
1,000-ton strawberry CA cold storage divided into 12 partition rooms — extends harvest season.
- 1,000 tons
- 0-2℃
- 60 days
- 2022
Background And Requirement
This CA cold storage was commissioned by a strawberry-farming cooperative in Dandong, Liaoning Province — the largest strawberry producing region in northern China. Their challenge: fresh strawberries have a shelf life of only 7-10 days at conventional cold storage conditions, forcing farmers to sell at peak-season prices (often a 60% discount) or accept heavy post-harvest losses.
Howcool delivered a 1,000-ton capacity CA cold storage designed specifically for strawberry preservation: 55m × 18m × 4.5m building divided into 12 independent partition rooms. Each partition is sized to hold approximately 85 tons of pallet-stacked strawberry flats, allowing the cooperative to batch-process fruit as it arrives from multiple member farms.
The CA atmosphere (O₂ 2-3%, CO₂ 10-15%, 0-2℃, 90-95% RH) extends fresh strawberry shelf life from 7-10 days to 60+ days, enabling year-round supply to supermarket chains and export buyers. The cooperative has since doubled their average sale price by moving supply into the off-season window.
Project Facts
| Location | Dandong, Liaoning Province |
|---|---|
| Capacity | 1,000 tons |
| Temperature | 0-2℃ |
| Programme | 60 days |
| Completed | 2022 |
| Sector | Fruit & Vegetable |
Capacity: 1,000 tons of fresh strawberries. Building dimensions: 55m × 18m × 4.5m. Divided into 12 partitioned rooms for batch management. CA atmosphere control extends strawberry shelf life from 7-10 days (fresh) to 60+ days (CA storage). Application: post-harvest preservation for Dandong strawberry industry.
How The Project Was Delivered
- 01
Rapid Design
Specific CA parameters developed from strawberry cultivar trials. 12-partition layout to match cooperative's harvest batching. Drawings issued in 7 days.
- 02
Fast-Track Build
Building shell erected in 20 days. PU panels and doors in 20 days. Refrigeration + CA equipment + electrical in 20 days. Total 60 days.
- 03
Commissioning & Training
CA gas-tight testing per partition. Storage trials with member-farm fruit. Cooperative staff trained on batch management and CA monitoring.
What Was Supplied
- Bitzer semi-hermetic parallel compressor rack
- Air-cooled condensers (low-noise, residential-zone rated)
- 12× dual-discharge air cooler evaporators (one per partition)
- 100mm PU gas-tight insulation panels — 990 m²
- 12× CA cold storage doors (one per partition)
- Nitrogen generator (PSA, 30 Nm³/h)
- CO₂ scrubber (lime-based, rechargeable)
- O₂/CO₂ analyser with 12-point sampling
- Humidification system (ultrasonic, 90-95%)
- Remote monitoring + mobile alarm
Results At Handover
Shelf Life
From 7-10 days (conventional) to 60+ days with CA — enabling off-season sales.
Average Sale Price
Off-season sales at nearly 2× peak-season prices. ROI achieved in 18 months.
Batch Management
Independent partitions for 12 farm-batches. Each opens/closes without disturbing others.
Photographs From Site
Questions About This Project
How large is the 1,000-Ton Strawberry CA Cold Storage project?
1,000 tons, located in Dandong, Liaoning Province.
What temperature does the facility operate at?
0-2℃.
How long did the project take?
60 days, completed 2022.
What equipment was supplied?
Key items included bitzer semi-hermetic parallel compressor rack; air-cooled condensers (low-noise, residential-zone rated); 12× dual-discharge air cooler evaporators (one per partition). Full equipment lists are issued with the design pack.
Can Howcool deliver a similar facility for us?
Yes. Send your storage volume or tonnage, target temperature, product type and site location, and our engineers will return a preliminary design and budget estimate within 48 hours.
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Water-Cooled Condensing Unit
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Ammonia (NH₃) Refrigeration System
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Planning Something Similar
Send your volume, temperature, product type and location. Our engineers respond within 24 hours with a preliminary design.