Bac Giang is the largest lychee-growing capital in Vietnam, with an area of over 28,000 hectares concentrated in... Luc Ngan, Luc Nam, Yen The, Tan Yen, Annual lychee yields reach 150,000 – 200,000 tons. However, the lychee ripening season is concentrated within only 30-45 days (from June to mid-July). Without cold storage to quickly cool the fruit, the lychees will quickly darken, rot, and become moldy within 24-48 hours under the hot summer weather. Simultaneously, the boom in large industrial parks such as... Quang Chau, Van Trung, Dinh Tram, Viet Han This has created a huge demand for cold storage for food in factory canteens.
Tan Long Refrigeration and Electrical Engineering Joint Stock Company We are a leading and reputable EPC general contractor, specializing in design consulting and construction. Cold storage for preserving fresh lychees for export, cold money storage, and logistics food warehouse in Bac Giang.. The system implemented by Tan Long helps extend the marketable shelf life of lychees from 30 to 45 days, preserving their vibrant red color and meeting the stringent quarantine standards of the Japanese, US, EU, and Chinese markets.
1. Urgent Cold Storage Needs for Lychee and Industrial Zones in Bac Giang
- Fresh lychees for export (Luc Ngan, Luc Nam): Lychees harvested in 35°C sunlight retain a significant amount of heat. They need to be placed in a pre-cooling facility to lower their core temperature. +8°C to +10°C within 3-4 hours, then transfer to a cool storage facility at a controlled temperature. +2°C to +4°C, with humidity of 90% – 95%. The extremely cold environment and high humidity help inhibit the polyphenol oxidase enzyme (which causes browning of the bark) and the Peronophythora fungus.
- Food warehouse & kitchen in Quang Chau, Van Trung, and Dinh Tram industrial zones: Hundreds of thousands of workers at Foxconn and Luxshare corporations demand that food be stored in cool storage (+2°C to +6°C) and freezer storage (-18°C to -22°C) operating with absolute safety and meeting ISO 22000 standards.
2. Technical Specifications Table for Specialized Storage in Bac Giang
| Application category | Chamber temperature range | Relative humidity (RH) | PIR Panel Enclosure Standards | Safe storage period |
|---|---|---|---|---|
| Cold storage for fresh lychees for export in Luc Ngan. | +2°C to +4°C | 90% – 95% (anti-darkening) | 100mm PIR Panel | The color remains vibrant red for 30-45 days. |
| Deep-freezing chamber for canned lychee pulp | -35°C to -40°C | Convective dry cold | PIR panel 150 – 200mm | Freezing cycle: 1 hour/batch |
| Quang Chau Industrial Park, Van Trung Food Warehouse | -20°C to +5°C (Multi-temperature range) | Automatic control | 100-125mm PIR panel with Camlock mounting | Meets ISO 22000 & Fire Safety Standards |
3. Standard B2B Equipment Configuration Recommended by Tan Long
- Bitzer (Germany) / Dorin (Italy) compressor units: Operates smoothly and adapts well to rural power grids during peak harvest season.
- Fire-resistant PIR panel enclosure B1/B2 according to QCVN 06:2022/BXD: Ensuring fire safety in agricultural warehouses and industrial park factories.
- T-Light 304 Stainless Steel Cold Storage Door: Manufactured exclusively by Tan Long, the surface is made of 304 stainless steel meeting HACCP food hygiene standards, and features a 4-way heated gasket to prevent ice buildup.
- Smart SCADA control panel: Automatically records temperature logs and provides remote monitoring and alerts via smartphone.
4. Estimated Price List for Cold Storage in Bac Giang (B2B)
| Capacity | Warehouse volume | Recommended computer configuration | B2B Technical Estimate |
|---|---|---|---|
| Cooperative produces 20-50 tons of lychees. | 100 – 250 m³ | Bitzer semi-enclosed unit, 100mm PIR panel, T-Light stainless steel hinged door. | Detailed cost breakdown based on floor plan. |
| Export warehouse capacity: 100-300 tons | 600 – 1,800 m³ | Screw compressor unit, High-capacity evaporator, 100-125mm PIR panel, Sliding door | Prepare technical design documents and Bill of Quantities (BOQ). |
| Industrial park warehouse capacity: 500 – 2,000+ pallets | 3,000 – 12,000+ m³ | Mycom/Bitzer parallel compression station, Pallet racking system, SCADA Cloud | Turnkey EPC general contractor |
👉 Field technical support: Tan Long engineers are present in Luc Ngan, Luc Nam, Quang Chau, and Van Trung within a certain period. 24 hours.
5. Proof of Tan Long's Practical Project Capabilities
- Automated warehouse general contractor NECS (102,642 pallets) and AJ Total (31,000 pallets).
- HVAC Partner Nutifood, Saigon Food, Vietnam Communist Party.
6. Standard 7-Step EPC Construction Process
- Field survey of the foundations of the power plant and substation in Bac Giang.
- Thermodynamic calculations and 3D simulation of the temperature field of the warehouse chamber.
- Prepare a transparent Bill of Quantities (BOQ) and commit to providing genuine equipment with CO/CQ certificates.
- Manufacturing of fire-resistant PIR panel enclosures and T-Light sliding doors at Tan Long factory.
- Transportation and direct installation of complete HVAC systems at the factory.
- Nitrogen pressure testing, vacuuming, gas charging, and acceptance testing followed by a 72-hour chamber cooling test.
- Handover of operations, instruction on safety procedures, and warranty activation are available 24/7.
7. Frequently Asked Questions (FAQ)
1. Will lychees stored in the Tan Long cold storage facility develop dark spots on their skin?
No. Tan Long combines a rapid cooling process for instant temperature reduction with a 90% – 95% humidity maintenance system and an export-standard SO2 (sulfur) fumigation chamber, preserving the natural reddish-pink color of the lychee skin for 35-45 days.
2. How long does it take to construct a 50-ton lychee storage warehouse in Luc Ngan?
Approximately 15-20 days from the contract signing date, the equipment should be ready for use before the peak harvest season begins.
Investment in Cold Storage for Lychee in Luc Ngan & Bac Giang
Contact Tan Long Engineers today to receive modern cold storage solutions and enhance the value of Bac Giang lychees.
Cold Storage Construction Project in Adjacent Areas of the Northern Midlands and Mountains
A hub for tropical fruits (lychee, mango, plum), valuable medicinal herbs, and a bonded cold storage system serving import and export through major border crossings. Tan Long's team of engineers is ready to conduct on-site surveys and provide technical support within 24 hours.
Engineer Nguyen Toan Thinh (Technical Director)
With over 18 years of practical experience in directing, consulting, designing, and constructing heavy industrial refrigeration systems, ASRS automated warehouses, and IQF freezing systems across more than 29 major national projects.
