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AquaChill Tech
China Factory Direct · CE/ISO Certified · Since 2002

Commercial Seafood Chillers & Seawater Cooling Systems Manufacturer

AquaChill Tech is the export brand of Delin HVAC, specializing in commercial seafood chillers, live-tank seawater cooling systems and titanium heat exchangers. OEM/ODM, factory-direct, CE/ISO certified, shipped worldwide since 2002.

20+
Years
8,000㎡
Factory
50,000+
Units/Year
30+
Countries
Our Products

Premium Refrigeration & Heat Exchange Equipment

From seafood temperature control to industrial process cooling, our comprehensive product line serves diverse global industries.

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A-Series Seafood Water Chiller

Delin's A-Series seafood water chillers are the flagship line for live seafood — 1 HP to 5 HP constant-temperature machines that hold restaurant display tanks, supermarket seafood counters, wholesale holding tanks and live-transport systems at a precise ±0.5 °C. A pure Grade 2 titanium heat exchanger runs in saltwater without corroding or leaching metal ions, and a Copeland compressor holds the set-point around the clock. Available in compact 768 mm and full-size 898 mm cabinets on 220V/50Hz single phase (to 3.5 HP) or 380–400V/3~/50Hz three phase (3.5 HP & 5 HP).

CEISO 9001
View A-Series Seafood Water Chiller Specifications
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A-Series 1-to-2 Seafood Water Chiller

Delin's A-Series 1-to-2 seafood water chillers pack two independent refrigeration circuits into a single 898 mm monoblock cabinet, so one unit holds two live seafood tanks at independent set-points. Each circuit uses a pure Grade 2 titanium heat exchanger for ±0.5 °C saltwater-safe cooling, and Copeland compressors run around the clock. Capacities of 5.2 kW to 8.5 kW on 220V/50Hz single phase or 380–400V/3~/50Hz three phase.

CEISO 9001
View A-Series 1-to-2 Seafood Water Chiller Specifications
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B-Series Supermarket Seafood Water Chiller

Delin's B-Series supermarket seafood water chillers are the low-profile line for supermarket and wet-market seafood displays. A reduced cabinet height and compact face let the unit slide under a seafood island cabinet or mount inside the display, while a pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C. The range covers 2.7 kW to 5.2 kW in single models and 3.6 kW to 5.2 kW in 1-to-2 models, all on 220V/50Hz single phase.

CEISO 9001
View B-Series Supermarket Seafood Water Chiller Specifications
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F-Series Slim Seafood Water Chiller

Delin's F-Series slim seafood water chillers are the thinnest line — extra-long 190–306 mm cabinets that hug a wall or slide into a display-cabinet mezzanine. A pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C. Covers 2.7 kW to 5.2 kW in single and 1-to-2 dual-tank models, with 1.5" internal-thread (FR/FRS/FRC) or 1.0" quick-connect (FNL/FNR) connections on 220V/50Hz single phase.

CEISO 9001
View F-Series Slim Seafood Water Chiller Specifications
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G-Series Dual-Side Air-Intake Seafood Water Chiller

Delin's G-Series dual-side air-intake seafood water chillers are the compact line for supermarket seafood counters. Air is drawn in from both sides of a 474–582 mm cabinet, so the unit fits a tight footprint while a pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C. Covers 2.7 kW to 5.2 kW across three single-tank models on 220V/50Hz single phase.

CEISO 9001
View G-Series Dual-Side Air-Intake Seafood Water Chiller Specifications
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H-Series Horizontal Seafood Water Chiller

Delin's H-Series horizontal seafood water chillers are the low-profile line for under-cabinet and space-limited seafood displays. A long horizontal body just 349–354 mm high slides under a display-cabinet base or into a tight mezzanine, while a pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C. Reversible R-models cool in summer and heat in winter. Covers 2.7 kW to 3.5 kW in single and 1-to-2 dual-tank models on 220V/50Hz single phase.

CEISO 9001
View H-Series Horizontal Seafood Water Chiller Specifications
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I-Series Top-Discharge Seafood Water Chiller

Delin's I-Series top-discharge seafood water chillers exhaust upward, so the cabinet fits flush against a crowded supermarket seafood counter with no side or rear clearance. A pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C, and the reversible R-models cool in summer and heat in winter. Both the single and 1-to-2 dual-tank models share an 846×280×446mm footprint at 3600W on 220V/50Hz single phase.

CEISO 9001
View I-Series Top-Discharge Seafood Water Chiller Specifications
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J-Series Cold-Chain Seafood Water Chiller

Delin's J-Series cold-chain seafood water chillers are the ultra-narrow R404A line for cold-chain seafood displays. A 308mm-wide body fits the narrow gap beside a cold-chain display cabinet, while a pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C. The cooling-first design spans 5200W to 8500W with auxiliary heating, on 220V/50Hz single phase.

CEISO 9001
View J-Series Cold-Chain Seafood Water Chiller Specifications
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AA-Series Water-Cooled Seafood Water Chiller

Delin's AA-Series water-cooled seafood water chillers run fanless, so they reject heat into cooling water instead of air — near-silent operation with no ventilation needed. That makes them the right choice for enclosed supermarket seafood areas, poorly ventilated rooms and marine or noise-sensitive installations. A pure Grade 2 titanium heat exchanger and Copeland compressor hold live fish, shrimp, crab and shellfish at a precise ±0.5 °C, across 2.7 kW to 14.5 kW in single (AD) and 1-to-2 dual-tank (AA) models.

CEISO 9001
View AA-Series Water-Cooled Seafood Water Chiller Specifications
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Industrial Water Chiller

Industrial water chillers from Delin deliver stable chilled water from 3.5 kW to 210 kW (1–60 HP) for plastic injection molding, laser cutting, food and beverage lines, chemical and pharmaceutical reactors, and data centers. Intelligent PLC control with touch screen holds set-point within ±1°C (±0.5°C premium), with overload, phase-sequence, and high/low-pressure protection built in. Choose air-cooled or water-cooled condensation, R410A, R134A, or R407C refrigerant, and 50 Hz or 60 Hz supply, configured to your site's heat load and utility.

CEISO 9001SGS
View Industrial Water Chiller Specifications
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Titanium Evaporator

Delin manufactures titanium evaporators and heat exchange coils from pure TA1/TA2 titanium, built to withstand seawater, brine, pool water, and aggressive chemical media that corrode copper and steel. Seamless one-piece coil construction eliminates the weld joints that typically fail, giving long service life in seafood tanks, swimming pools, and industrial cooling loops. Coil diameters from Φ9.52 mm to Φ19.05 mm, working pressures up to 1.6 MPa, a -20°C to +120°C range, and every unit 100% hydrostatically pressure-tested before shipping.

ISO 9001SGS
Browse Titanium Evaporator & Coil Specs
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Stainless Steel Heat Exchanger

Stainless steel heat exchangers from Delin are engineered in shell-and-tube, plate, and coaxial configurations for HVAC, refrigeration, and industrial process duty. Built from SS304 or SS316L, they resist oxidation and corrosion — including hygienic food and beverage applications — across a design range of -30°C to +200°C and pressures up to 2.0 MPa (custom to 4.0 MPa). Every unit is TIG-welded to ASME IX by qualified welders, 100% hydrostatically tested, and available with connection sizes from 1/2" to 6" plus custom flanges.

CEISO 9001
See Stainless Steel Heat Exchanger Options
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Swimming Pool Chiller

Pool Water Chiller for Hotels, Resorts, Spas & High-Temperature Pool Cooling

CEISO 9001
Learn more
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Aquaculture Water Chiller

RAS & Farm-Scale Water Cooling for Fish Farms, Shrimp Farms, Hatcheries & Aquariums

CEISO 9001
Learn more
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Fish Pond Intelligent Controller

Smart control for koi ponds and aquaculture tanks

Learn more
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Wired Controller

Second-generation wired remote for Delin chillers

Learn more
About Delin

Your Trusted Partner in Refrigeration Manufacturing

With over 20 years of specialized experience, Delin has grown from a small workshop into a leading refrigeration equipment manufacturer serving clients worldwide.

2002
Founded
100++
Employees
8,000㎡
Factory Area
30++
Export Countries
M

Manufacturing Excellence

8,000㎡ modern facility with advanced CNC machining, automated welding, and precision testing equipment.

Q

Quality Control

Every unit undergoes 100% hydrostatic testing, performance verification, and multi-point quality inspection before shipping.

R

R&D Capability

In-house engineering team with 15+ years of experience in refrigeration system design and optimization.

G

Global Logistics

Established shipping partnerships with major freight carriers ensure timely delivery to any port worldwide.

Why Delin

Why Choose AquaChill Tech?

We combine decades of manufacturing expertise with modern technology to deliver refrigeration solutions that exceed expectations.

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20+ Years of Expertise

Since 2002, Delin has specialized exclusively in refrigeration and heat exchange manufacturing. Two decades of focused work — from titanium coil welding to chiller assembly — means our engineers have seen the failure modes that short-lived suppliers never learn about, and every design in our catalog is built on lessons from real seafood tanks, industrial chillers, and heat exchangers operating across 30+ countries.

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Factory Direct Pricing

We are the manufacturer, not a trading company. Our 8,000 m² factory in Foshan with over 100 employees produces more than 50,000 units a year, so you buy at factory cost with no middleman markup. Direct pricing also means transparent lead times — 15-25 days standard, 25-40 days for custom OEM builds — and a 12-month warranty backed by the people who built the machine.

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Custom OEM/ODM Service

Every Delin project starts from your specification, not a catalog page. We customize capacity, voltage (including 60 Hz), refrigerant, condenser type, titanium coil geometry, connection sizes, and OEM branding. Need to validate before mass production? We build prototypes for fit and performance testing first, then scale to full production with your packaging and documentation.

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Quality Guaranteed

Quality at Delin is verifiable, not promised. Every titanium coil and heat exchanger is 100% hydrostatically pressure-tested, every chiller run-tested, and every weld checked by qualified TIG welders working to ASME IX. The factory holds CE and ISO 9001 certification, with SGS third-party inspection available on request, and incoming material is inspected before production and finished units again before packing.

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Global Export Experience

Delin ships to more than 30 countries across Southeast Asia, the Middle East, Africa, Europe, and South America — from Saudi Arabian pool projects and South African hatcheries to seafood processing lines across Latin America. We build for your destination: 50 Hz or 60 Hz supply, single or three phase, English, Spanish, Portuguese, and Arabic documentation, and export packaging sized for ocean freight.

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Professional Technical Support

Our sales engineers answer within 24 hours, and the same team helps after delivery with installation guidance, water-flow configuration, and set-point advice. Because we build the equipment, you talk to engineers who know the machine, not a call center. Every order ships with a 12-month warranty, and replacement parts and spares are available direct from the factory for the life of the equipment.

About Our Manufacturing

Refrigeration Equipment Built, Tested, and Shipped from Our Own Factory

Founded in 2002 in Foshan, Guangdong — the heart of China's refrigeration manufacturing — Delin HVAC has grown from a specialist workshop into an export manufacturer running an 8,000 m² facility with more than 100 employees. Every year we build more than 50,000 refrigeration and heat exchange units for customers in over 30 countries, spanning our core seafood and aquaculture markets as well as industrial cooling, swimming pool, and HVAC projects across Southeast Asia, the Middle East, Africa, Europe, and South America.

Delin's product range is built around four engineered lines: seafood constant temperature machines for fish and shrimp processing, industrial water chillers for process and machine cooling, titanium evaporators and coils for seawater and aggressive chemical media, and stainless steel heat exchangers for HVAC, food, and high-purity applications. Because we fabricate in-house — from titanium coil welding to chiller assembly and pressure testing — we can match your tank geometry, cooling load, or OEM specification rather than selling a generic import.

Delin equipment is specified wherever clean, precise, corrosion-resistant cooling matters. Seafood constant temperature machines hold fish, shellfish, and crustaceans at their target water temperature from harvest through processing and display. Industrial chillers deliver stable chilled water for injection molding, laser cutting, food lines, and pharmaceutical reactors. Titanium evaporators transfer heat in seawater, brine, and pool water without corroding, and stainless steel heat exchangers serve hygiene-critical food and beverage duty. Our engineers regularly size custom systems — for example, a 5 HP pure-titanium chiller configured to cool a 3,000 L potable water tank from 50-60 °C down to 25-30 °C in outdoor Gulf conditions.

Quality is verifiable at Delin. Every titanium coil is 100% hydrostatically pressure-tested, every chiller run-tested, and every heat exchanger weld-checked before packing, under CE and ISO 9001 certification with SGS third-party inspection available on request. As an OEM/ODM manufacturer we routinely build prototypes so you can validate fit and performance before mass production. Standard orders typically ship in 15-25 days; custom OEM configurations in 25-40 days, backed by a 12-month warranty. To start a project, send your specifications through the contact form or WhatsApp — our sales engineers respond within 24 hours.

Ready to Source Premium Refrigeration Equipment?

Working with Delin is a straightforward five-step process. Send your requirements and cooling specifications through the form or WhatsApp, and our engineers respond within 24 hours with a solution and factory-direct quote. We then prepare drawings and a free sample or prototype for your approval. Once confirmed, we schedule production — standard models ship in 15-25 days and custom OEM orders in 25-40 days — with progress updates along the way. After delivery, our technical team provides installation guidance and after-sales support, backed by a 12-month warranty. From first inquiry to a running machine, you deal directly with the factory.

Or email us at jacky@aquachilltech.com · Call us at +8613247543939