Agrex Saigon Foodstuff JSC – NH3 refrigeration system

Tan Long designed, supplied and installed NH3 refrigeration systems and R404a give Agrex Saigon Foodstuff JSC at 10 Ben Nghe, Tan Thuan Ward, Ho Chi Minh City, Project 1. This has been a long-term partnership across 05 consecutive projects, from a 1,000-pallet cold store through to refrigeration system upgrades for two plants.

Project summary

ClientAgrex Saigon Foodstuff JSC
Location10 Ben Nghe, Tan Thuan Ward, Ho Chi Minh City, Project 1:
IndustrySeafood & food processing
RefrigerantNH3 and R404a
Projects delivered05 projects
Cold store size1,000 pallets
Tan Long scopeDesign – Fabrication – Supply – Installation

The NH3 refrigeration system and Tan Long cold storage facility were installed at Agrex Saigon.

Equipment delivered on each project

Project 1 — Panel cold store and refrigeration system

DeviceBrandQuantity
Cold store panel envelope 25 × 17.4 × 5 m—01 warehouse
Screw compressorBitzer—

Project 2 — Refurbishment of Food Processing Workshop No. 2

DeviceBrandQuantity
Ambient air cooling conveyor——
Chilled air cooling conveyor——
Plate IQF belt, 750 kg/h——
Flake ice machine, 10 tonnes/24h——
Stainless steel evaporative condensersTan Long01 unit
Screw compressorMycom03 units
Central chiller air conditioning system, R404A refrigeration systemBitzer—

Project 3 — 1,000-pallet cold store

DeviceBrandQuantity
Insulated panelCycleworld / Malaysia01 batch
Loading dock doors and high-speed door—01 batch
Screw compressorMycom02 units
CondenserGüntner (Germany)06 units
Evaporative condenserTan Long01 unit

Project 4 — Refrigeration system upgrade, plant 1

DeviceBrandQuantity
IQF belt, 750 kg/h—02 units
IQF belt, 600 kg/h—02 units
Flake ice machine, 10 tonnes/day (R404a system)—01 unit
Flake ice machine, 15 tonnes/day (R404a system)—01 unit
Plant-wide SCADA monitoring system—01 system

Project 5 — Refrigeration system upgrade, plant 2

DeviceBrandQuantity
Flat plate IQF belt, 750 kg/h—01 unit
Production hall air conditioning system—01 system

Why the project runs NH3 and R404a side by side

The Agrex Saigon plant runs two refrigerants for two different load groups:

  • NH3 for the large cooling loads: the 1,000-pallet cold store and the central refrigeration system. Highest efficiency and lowest operating cost at this scale.
  • R404a for the standalone units such as the flake ice machines and some upgraded lines, where adding a branch to the central NH3 system is not economical.

Splitting it this way lets the owner upgrade one area at a time without shutting down the whole plant — which is why the project was delivered in 05 consecutive phases.

What the project demonstrates about Tan Long's capability

Agrex Saigon has come back to Tan Long 05 times — a more reliable indicator than any recommendation. Within that, Tan Long fabricated 02 stainless steel evaporative condensers on Project 2 and Project 3.

The project also demonstrates the ability to work inside an operating plant: refurbishing a processing workshop, upgrading lines and integrating a SCADA monitoring system without interrupting production.

Frequently Asked Questions

Which work packages did Tan Long deliver at Agrex Saigon Foodstuff?

Tan Long designed, supplied and installed NH3 and R404 refrigeration systems for Agrex Saigon Foodstuff JSC at 10 Ben Nghe, Tan Thuan Ward, Ho Chi Minh City, Project 1.

Which refrigerant does the refrigeration system at Agrex Saigon Foodstuff use?

The system uses NH3 and R404 as refrigerants. NH3 delivers the highest cooling efficiency among the common industrial refrigerants in the evaporating temperature range from -18°C to -40°C, has a low operating cost and does not deplete the ozone layer. In return, NH3 demands a higher standard of safety capability: leak detection sensors, emergency ventilation and strict operating procedures.

Which equipment on the project was manufactured in-house by Tan Long?

Tan Long fabricates its own IQF conveyor, contact plate freezers, air blast freezers, flake ice machines and evaporative condensers at its plant in Duc Hoa 1 Industrial Park, Tay Ninh (formerly Long An) — they are not bought in from a third party.

Can Tan Long deliver a similar project for another plant?

Yes. Tan Long has designed, fabricated and installed industrial refrigeration systems for 29 projects in Vietnam, including seafood, food and beverage processing plants and cold chain logistics centres. See full project list or call 0933 357 058 (Mr. Thinh) for advice.

Need advice on a similar system?

Tan Long provides consulting, design and quotations for industrial refrigeration systems, cold storage and IQF freezing lines. Call 0933 357 058 (Mr. Thinh) or send a quotation request.

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Engineer Nguyen Toan Thinh - Tan Long Refrigeration and Electrical Engineering
Review & Expert Advice

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.

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