>
TÂN LONG
Solid Stainless Steel Flat Belt IQF Freezing Tunnel

Solid Flat Belt IQF Freezer

Tan Long solid stainless steel flat belt IQF freezing tunnels provide the premier freezing solution for delicate, high-moisture, or battered products prone to belt adhesion, such as pangasius fillets, tempura shrimp, sliced beef, and pastries. The mirror-polished solid belt eliminates tearing and prevents unsightly mesh impressions.

Solid Flat Belt IQF Freezer: The solid flat belt IQF freezer is customized for delicate and sticky products like fish fillets, breaded shrimp, and convenience foods. The mirror-smooth stainless steel surface enables direct conduction heat transfer combined with -40°C deep forced air, preserving product aesthetics and weight.
For delicate, high-value seafood such as pangasius and salmon fillets, solid steel belt IQF freezers prevent belt-mesh indentations on skin surfaces while delivering lightning-fast core freezing (-35°C to -40°C) with zero product sticking. Tan Long solid flat belt IQF tunnels combine direct bottom conductive cooling with high-velocity -40°C top air impingement, flash-freezing the bottom product layer within 15 seconds to preserve 100% of delicate product aesthetics.
IQF Quick Freezing Conveyors Phẳng Solid Belt: Không Hằn Vết, Giữ Nguyên Cấu Trúc Cá Fillet
SUS304 solid flat belt IQF tunnel manufactured by Tan Long for export fish fillet freezing

Tan Long Factory Standard Technical Specifications Matrix

Freezing Capacity Range 500 to 2,500 kg/hour
Conveyor Belt Surface Seamless mirror-flat Sandvik stainless steel solid belt
Evaporating Temperature -40°C to -45°C
Freezing Retention Time 8 to 25 minutes (depending on slice thickness)
Weight Shrinkage Loss Negligible under 0.4%
Heat Transfer Mode Direct bottom conductive contact + top impingement convection
Refrigerant Natural NH3 or eco-Freon R507A/R404A
Product Discharge Scraper Food-grade POM / stainless anti-scratch scraper blade
Get 2026 Equipment Quotation Download Technical Catalog (PDF)

1. Dual Contact Conduction Freezing Mechanism

Unlike mesh belt tunnels that rely solely on airflow, Tan Long solid flat belt IQF tunnels deploy hybrid heat transfer:

• Direct Bottom Conductive Transfer: The bottom of the solid steel belt contacts sub-zero air or chilled brine sprays, flash-crusting the underside of fillets or dough within 15 seconds, locking in cellular moisture.

• Top High-Velocity Impingement: High-static fans drive -40°C laminar air downward, pulling product core down to target sub-zero temperatures rapidly.

2. Superior Advantages for Fish Fillets & Value-Added Breaded Seafood

Export seafood processors supplying US FDA and EU markets demand impeccable surface aesthetics:

• Fillets retain smooth natural contours without unsightly mesh grid impressions.

• Battered tempura shrimp and breaded portions keep coatings intact without crumb shedding.

• Automated discharge scrapers release delicate portions cleanly without edge breakage.

3. HACCP-Compliant Automated CIP Sanitation

The seamless solid steel belt makes sanitation vastly simpler than intertwined mesh belts. Integrated high-pressure CIP spray manifolds and motorized brushes clean the belt return loop continuously, eliminating cross-contamination.

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

  • ✓ Specialized Sandvik stainless solid steel belt with perfect flatness and a 10+ year lifespan
  • ✓ Bottom chilled liquid contact ensures instant bottom crust freezing and zero belt adhesion
  • ✓ Ultra-low weight shrinkage loss (< 0.4%) < 0.4%, cao hơn đáng kể so với mức 1.5% của hầm gió thường
  • ✓ 24-Month Full Warranty with dedicated engineering support directly from Duc Hoa 1 Factory, Long An

Drawbacks of Manual / Used Imported Systems

  • ✗ Imported Korean/European freezers cost 35% to 50% more than Tan Long with equivalent performance
  • ✗ Inferior conveyor fabrications suffer wavy belt edges and jammed scraper blades
  • ✗ Poor aerodynamics extend freezing duration, forming large ice needles that shred meat fibers
  • ✗ Difficulty sourcing replacement scraper blades and hydraulic belt tensioners

Frequently Asked Questions (FAQs) by Engineers & Investors

Q1: Can solid flat belt IQF freezers process black tiger shrimp and clams?

Yes, but for small individualized items like peeled shrimp and clam meats, fluidized mesh belt IQF tunnels offer higher efficiency. Solid flat belts are optimal for fish fillets, straight-laid shrimp, battered items, and pastries.

Q2: Can Tan Long connect the IQF tunnel to our factory’s existing compressor station?

Yes. Tan Long custom-engineers IQF tunnels to integrate seamlessly with your existing central NH3 or Freon compressor racks, sizing liquid feed lines and expansion valves for peak efficiency.

RAPID FREEZING EQUIPMENT SELECTION & PROVEN CASE STUDIES

Advanced IQF freezing and air-blast tunnels preserving cellular moisture and food quality for international export:

TECHNICAL EXPERT VERIFICATION

Updated: September 2026 • Standards: TCVN 6739 & QCVN 06:2022
Eng. Nguyen Van Long - EPC Technical Director
EXPERT AUTHOR

Eng. Nguyen Van Long

EPC Technical Director & Head of Refrigeration Solutions, Tan Long

20+ years EPC experience in industrial cold storage systems, IQF quick freezers, and automated ASRS facilities. Thermal Engineering alumnus from HCMC University of Technology, VISRAE Executive Board member.

M.Sc. Tran Dinh Hung - Pressure Safety Lead, Tan Long
TECHNICAL VERIFICATION

M.Sc. Tran Dinh Hung

Pressure Vessel Safety Verification & Energy Auditing Lead

15+ years leading NH3 piping pressure safety proofing, COP energy audits, and fire protection certification for PIR/PU panel enclosures under QCVN 06:2022/BXD.