Long-Range High-Performance Low-Temp Air Cooler

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Long-range High Performance Air Coolers Engineered for Uncompromising Performance in Demanding Low-Temperature Storage

Long-Range High-Performance Low-Temp Air Cooler

The LDD Series represents a dedicated engineering philosophy for cold storage where consistency, reliability, and operational efficiency are critical. Designed specifically for challenging low-temperature environments, it moves beyond standard cooler designs to address the core challenges of frost management, energy consumption, and uniform temperature distribution in large, deep cold rooms. This is not just cooling equipment; it is a systematic approach to preserving product quality and maximizing operational uptime in demanding applications.

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LDD

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LDD

Overview

Long-Range High-Performance Low-Temp Air Cooler

The LDD series is a heavy-duty unit cooler and leader among industrial air coolers, engineered for demanding large-scale low-temperature storage (over 50 m³). Designed to tackle frost management, energy efficiency, and uniform cooling in deep cold rooms, this cubic air cooler delivers long-range performance that redefines industrial refrigeration. It offers premium material options: the corrosion-resistant titanium air cooler, durable cubic air cooler with AlMg fins, and hygienic Stainless Steel air cooler (grade 304/316). As an ECO cubic air cooler, it minimizes energy use while delivering 20–300 kW cooling capacity, and compatibility with Dual discharge air coolers enhances its versatility for high-shelf warehouses and industrial freezers. For businesses needing reliable, large-scale cooling, this unit cooler is the gold standard.

Technical Specifications

Details

This industrial air cooler operates at a cooling capacity of 20–300 kW, designed to handle the thermal demands of large cold rooms, blast freezers, and high-shelf storage. Its in-line geometry and vertical air intake/exhaust ensure deep, uniform airflow across extensive spaces. Material options include the titanium air cooler (for aggressive environments), cubic air cooler with AlMg fins (for structural resilience), and Stainless Steel air cooler (for food processing facilities). Fin distance is highly customizable (8–40 mm, with options like 16-8, 24-12-6, and 40-20-10 mm), minimizing frost buildup and air resistance. Equipped with high-throw AC or EC fan motors, this ECO cubic air cooler reduces energy consumption while projecting cold air over impressive distances. It supports refrigerants including HFC, NH₃, CO₂, Glycol, Water, and Brine, ensuring seamless integration into existing systems. The reinforced chassis and insulated water tray prevent vibration and condensation, critical for long-term industrial use.

APPLICATIONS	Refrigeration
REFRIGERANTS	HFC	NH₃	CO₂	Glycol	Water	Brine
CAPACITY RANGE	20 ~ 300 kW
FIN DISTANCE	8 , 10 , 12 , 16-8 , 18-9 , 20-10 , 24-12-6 , 30-15 , 40-20-10 mm, or as requirements
GEOMETRY	In-line
AIR DIRECTION	Vertical air intake and vertical exhaust
MATERIAL	Titanium	Aluminum	AlMg	Stain steel 304/316	Copper	Epoxy	Powder coated	Al-Zn coated
TUBES	√	√		√	√	√
FINS	√	√	√	√	√	√
FIN THICKNESS	0.15mm	0.2~0.4mm	0.2~0.4mm	0.15~0.17mm	0.15~0.2mm	0.2~0.4mm
CASING	√			√			√	√
WATER TRAY	√			√			√	√
DEFROSTING	Electric	Hot gas	Air	Glycol	Brine	Water
COILS	√	√	√	√	√	√
FANS	√		√
WATER TRAY	√	√	√	√	√	√
FANS MOTORS	AC or EC fan motors
DIMENSIONS	600 , 630 , 700 , 800
NUMBERS	1 ~ 6

Accessories

Advantages

Core Features

Wide Fin Spacing for Sustained Efficiency

Unlike compact counterparts, this unit cooler features wide fin spacing to minimize frost accumulation and air resistance. This design maintains consistent heat transfer for longer between defrost cycles, a must for industrial air coolers in 24/7 low-temperature environments.

Advanced Multi-Point Defrost System

The LDD’s layered defrost system (water + targeted electric heating) ensures thorough ice removal from coils, drain pans, and baffles. Whether configured as a titanium air cooler or Stainless Steel air cooler, it eliminates ice-related downtime and protects critical components.

Patented Long-Range Airflow Management

Each axial fan is housed in an independent down-draft plenum, creating a unified column of air that reaches deep into large spaces. When paired with Dual discharge air coolers, it eliminates temperature dead zones—ideal for high-shelf warehouses and blast freezers.

ECO-Conscious Industrial Performance

As an ECO cubic air cooler, it optimizes energy use through high-efficiency fans and heat exchange design. Its ability to cover large areas with fewer units reduces installation costs, while low maintenance needs lower long-term expenses.

Durable & Scalable Construction

The cubic air cooler with AlMg fins offers lightweight strength, while the titanium air cooler excels in corrosive environments (e.g., coastal facilities). Customizable dimensions (600–800 mm) and up to 6 fans make it scalable for projects of any size.

Applications

Application Scenarios

Large-Scale Cold Chain Warehouses

Cold chain logistics facilities (1,000+ m³) rely on this industrial air cooler to maintain -20°C to -30°C temperatures. Its long-range airflow and compatibility with Dual discharge air coolers ensure frozen goods stay fresh across high-shelf storage.

Industrial Blast Freezers

Blast freezers for meat, seafood, and frozen foods demand rapid, uniform cooling. This unit cooler’s 20–300 kW capacity and advanced defrost system meet the strict requirements of food processing plants, while the Stainless Steel air cooler option adheres to hygiene standards.

High-Shelf Low-Temperature Storage

High-shelf warehouses benefit from the cubic air cooler’s long-range airflow, which reaches the top of 10+ meter shelves. The ECO cubic air cooler design reduces energy costs for large facilities, making it a sustainable choice for bulk storage.

FAQ

FAQ About Low-Temp Air Cooler

What is the cooling range of this industrial air cooler?

It delivers 20–300 kW of cooling capacity, suitable for large cold rooms, blast freezers, and high-shelf storage facilities (over 50 m³).

Can I select the titanium air cooler for coastal environments?

Yes! The titanium air cooler variant offers exceptional corrosion resistance, perfect for coastal or chemical-exposed industrial settings.

How does this ECO cubic air cooler save energy?

High-efficiency fans, wide fin spacing (reduced air resistance), and optimized heat exchange design lower energy use by up to 25% compared to standard industrial air coolers.

Is it compatible with Dual discharge air coolers?

Absolutely. Pairing it with Dual discharge air coolers creates a multi-directional airflow loop, eliminating dead zones in irregularly shaped large cold rooms.

What maintenance is required for the Stainless Steel air cooler?

The Stainless Steel air cooler features a non-porous surface—clean monthly filters and inspect the defrost system quarterly. The maintenance door provides easy access, minimizing downtime.