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

OEM/ODM Refrigeration Equipment Manufacturer

20+ years manufacturing seafood constant temperature machines, industrial chillers, titanium evaporators & heat exchangers. Factory-direct, CE/ISO certified, shipped worldwide.

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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Seafood Constant Temperature Machine

Delin seafood constant temperature machines hold live tanks and display units at a precise ±0.5°C across +5°C to +35°C, keeping fish, shrimp, and shellfish alive from harvest to market. Pure Grade 2 titanium evaporators resist seawater corrosion and never leach metal ions into the water, while Copeland compressors and R410A refrigerant deliver quiet, efficient, round-the-clock duty. Capacities span 2.8 kW to 85 kW (1–30 HP), with 220V/50Hz single-phase or 380V/50Hz three-phase supply, trusted by processing plants, hatcheries, supermarkets, and restaurants in over 30 countries.

CEISO 9001
Explore Seafood Constant Temperature Machines
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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
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
150++
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 Delin HVAC?

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 150 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 24-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 24-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 150 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 24-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 24-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