Tan Long Factory Standard Technical Specifications Matrix
1. Direct Conductive Heat Transfer for Maximum Thermal Efficiency
Unlike blast freezers that rely on low-conductivity air convection, contact plate freezers conduct heat directly from product pans into -40°C aluminum plates:
• Heat transfer coefficient is 4 to 6 times higher than forced air convection.
• Bilateral product surfaces are pressed flat under 1.5 to 2.0 kg/cm² hydraulic pressure.
• Frozen shrimp/fish blocks have exact uniform dimensions, fitting cartons perfectly without lid bulging.
2. Zero-Leakage Architecture & Operational Safety
High-pressure NH3 or Freon circulates inside moving plates. Tan Long enforces rigorous weld testing and pressure validation:
• Stainless steel braided flexible hoses rated and helium-tested to 35 bar pressure.
• Heavy hard-chrome plated guide columns and pilot-operated check valves maintain plate clamping positions even during power outages.
3. Key Aquaculture Processing Applications
Tan Long contact plate freezers serve as the production backbone across the Mekong Delta (Ca Mau, Kien Giang, Bac Lieu, Soc Trang, Ben Tre), freezing HOSO, HLSO, PTO block shrimp, and pangasius steaks for East Asian and Middle Eastern export markets.
Competitive Advantages & Market Comparison Matrix
Technical comparison between genuine Tan Long refrigeration equipment manufactured at Duc Hoa 1 Industrial Park versus substandard market alternatives:
Tan Long Equipment Advantages
- ✓ Monolithic extruded aluminum alloy plates with mirror-flat contact surfaces resisting warp for decades
- ✓ Stainless braided flexible hoses rated to 30 bar, eliminating fatigue cracking and leaks
- ✓ Stainless hydraulic cylinders with balanced thrust ensuring perfectly rectangular frozen blocks
- ✓ Trusted by industry leaders including Agrex Saigon, Cases Ca Mau, and Phuc Nguyen Seafood
Drawbacks of Manual / Used Imported Systems
- ✗ Imported Korean/European freezers carry prohibitive purchase and replacement plate costs
- ✗ Cheap artisanal workshops use recycled aluminum with poor conductivity, prone to internal leaks
- ✗ Standard carbon steel cylinders rust rapidly and leak hydraulic fluid into processing areas
- ✗ Short warranties and absence of emergency field service teams during urgent leakages
Frequently Asked Questions (FAQs) by Engineers & Investors
Q1: How many batches can a contact plate freezer process per day?
With a 90-120 minute freeze cycle plus 20 minutes for tray handling and rapid defrosting, a contact plate freezer processes 8 to 10 batches daily, yielding 8 to 20 tons/day depending on plate count.
Q2: Does Tan Long offer plate replacement and overhaul services for existing contact freezers?
Yes. Tan Long supplies replacement extruded aluminum plates, high-pressure braided hoses, hydraulic power pack overhauls, and flooded refrigerant retrofits for all domestic and foreign plate freezer brands.
