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High-Efficiency Air Cooler from China Suppliers - Durable Factory-Produced Units with Automatic Defrosting Technology
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High-Efficiency Air Cooler from China Suppliers - Durable Factory-Produced Units with Automatic Defrosting Technology

Introducing our advanced water defrosting system, designed with specialized water spray equipment to provide a consistent and efficient flow that prevents splash. Our system allows users to integrate a module into the controller for seamless automatic defrosting control, ensuring quick defrosting while minimizing energy costs. The product features a durable, corrosion-resistant shell, thanks to a thorough phosphating process and surface spray treatment, which enhances longevity and performance. The automatic molding process guarantees a dry and clean interior for the copper tube, further contributing to product reliability. Each unit undergoes a rigorous 2.6mpa air tightness test to meet strict air tightness standards, ensuring optimal performance. Our liquid pressure machine effectively combines aluminum fins with copper tubes using TIG welding, resulting in superior heat transfer stability. Utilizing premium branded fans and heat tubes, our products deliver consistent quality with low noise levels, reduced energy consumption, and high efficiency. Additionally, the water pan and side plates are designed for easy disassembly, facilitating maintenance. As a leading factory in China, we take pride in being top suppliers of innovative heating solutions, ensuring that our customers receive high-quality products tailored to their needs.
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    Product Details

    Product Features

    Low Noise & Vibration: Panel and side plates are well constructed by using step structure, reducing the noise caused by fan and fan vibration. Water pan and side plate are easy to dismantle.

    Anti-Corrosion Shell: After treatment of phosphating and surface spray, the shell becomes corrosion resistant, smooth, and achieves a longer life span.

    Clean Inner System: Automatic molding process ensures a dry and clean interior for all copper tubes.

    High Air Tightness: 2.6 MPa air tightness pressure test rigorously satisfies product safety and tightness requirements.

    Efficient Heat Transfer: Expanded by liquid pressure machinery, the aluminum fin and copper tube are combined tightly to achieve a stable heat transfer effect.

    Premium Brand Components: Famous brand fan and heat tube achieve stable quality, low noise, lower energy consumption, and high efficiency.

    Slot Type Rack Design: Specially engineered slot-type bracket design facilitates quick, safe, and convenient installation.

    Centralized Electrical Box: All internal wires and plugs are connected securely in an electrical box, offering high convenience for installation and maintenance.

    Optimized Electric Defrosting: Incorporates high-insulation stainless steel heating tubes with reasonable heat distribution for rapid defrosting, high efficiency, and low energy costs. Compatible with automatic defrost control modules.

    Technical Data

    MODEL Nominal Capacity
    (W)    		 Cooling Area
    (m²)    		 Fin Space
    (mm)    		 Pipe Diameter
    (mm)    		 Fan Defrost Electrical Heater
    Quantity
    (set)    		 Diameter
    (mm)    		 Air Volume
    (m³/h)    		 Wind Pressure
    (mmH₂O)    		 Power
    (W)    		 Voltage
    (V)    		 Coil
    (kW)    		 Drain Water Plate
    (kW)    		 Voltage
    (V)
    DJ-1.2/8 1200 8 9 9.52 2 300 2x1700 98(10) 2x90 380 1.8 0.9 220
    DJ-2.1/15 2100 15 9 9.52 3 300 3x1700 98(10) 3x90 380 2.4 1.2 220
    DJ3.6/20 3600 20 9 16 2 400 2x4000 118(12) 2x190 380 2.6 1.3 220
    DJ-4.6/30 4600 30 9 16 2 400 2x4000 118(12) 2x190 380 2.6 1.3 220
    DJ-7.1/40 7100 40 9 16 2 500 2x6000 167(17) 2x550 380 4.5 1.5 220
    DJ-8.9/55 8900 55 9 16 2 500 2x6000 167(17) 2x550 380 4.5 1.5 220
    DJ-11.6/70 11600 70 9 16 3 500 3x6000 167(17) 3x550 380 8.4 2.1 220
    DJ-14.3/85 14300 85 9 16 3 500 3x6000 167(17) 3x550 380 8.4 2.1 220
    DJ-17.1/100 17100 100 9 16 3 500 3x6000 167(17) 3x550 380 11.2 2.8 220
    DJ-19.6/115 19600 115 9 16 4 500 4x6000 167(17) 4x550 380 11.2 2.8 220
    DJ-22/130 22000 130 9 16 4 500 4x6000 167(17) 4x550 380 12.0 3.0 380
    DJ-23/140 23000 140 9 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DJ-25/150 25000 150 9 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DJ-28/170 28000 170 9 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DJ-30/190 30000 190 9 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DJ-35/210 35000 210 9 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DJ-41/250 41000 250 9 16 4 630 4×11000 200 4×937 380 27.0 3.0 380
    DJ-50/300 50000 300 9 16 4 630 4×11000 200 4×937 380 30.0 3.0 380
    DD-1.3/7 1300 7 6 9.52 1 300 1x1700 98(10) 1x90 380 1.0 0.5 220
    DD-2.2/12 2200 12 6 9.52 2 300 2x1700 98(10) 2x90 380 1.8 0.9 220
    DD2.8/15 2800 15 6 9.52 2 300 2x1700 98(10) 3x90 380 1.8 0.9 220
    DD-3.7/22 3700 22 6 9.52 3 300 3x1700 98(10) 2x90 380 2.4 1.2 220
    DD-5.6/30 5600 30 6 16 2 400 2x4000 118(12) 2x190 380 2.6 1.3 220
    DD-7.5/40 7500 40 6 16 2 400 2x4000 118(12) 2x190 380 2.6 1.3 220
    DD-11.2/60 11200 60 6 16 2 500 2x6000 167(17) 2x550 380 4.5 1.5 220
    DD-14.9/80 14900 80 6 16 2 500 2x6000 167(17) 2x550 380 4.5 1.5 220
    DD-18.7/100 18700 100 6 16 3 500 3x6000 167(17) 3x550 380 8.4 2.1 220
    DD-22.4/120 22400 120 6 16 3 500 3x6000 167(17) 3x550 380 8.4 2.1 220
    DD-26.4/140 26400 140 6 16 3 500 3x6000 167(17) 3x550 380 11.2 2.8 220
    DD-30.0/160 30000 160 6 16 4 500 4x6000 167(17) 4x550 380 11.2 2.8 220
    DD-35.0/180 35000 180 6 16 4 500 4x6000 167(17) 4x550 380 12.0 3.0 380
    DD-37.0/200 37000 200 6 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DD-40.0/220 40000 220 6 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DD-46.0/250 46000 250 6 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DD-50.0/275 50000 275 6 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DD-57.0/310 57000 310 6 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DD-67.0/360 67000 360 6 16 4 630 4×11000 200 4×937 380 27.0 3.0 380
    DD-81.0/440 81000 440 6 16 4 630 4×11000 200 4×937 380 30.0 3.0 380
    DL-2.0/10 2000 10 4.5 9.52 1 300 1x1700 98(10) 1x90 380 0.5 0.5 220
    DL-3.0/15 3000 15 4.5 9.52 2 300 2x1700 98(10) 2x90 380 0.9 0.9 220
    DL-5.0/25 5000 25 4.5 9.52 3 300 3x1700 98(10) 3x90 380 1.2 1.2 220
    DL-8.0/40 8000 40 4.5 16 2 400 2x4000 18(12) 2x190 380 1.3 1.3 220
    DL-11.2/55 11200 55 4.5 16 2 400 2x4000 18(12) 2x190 380 1.3 1.3 220
    DL-16.2/80 16200 80 4.5 16 2 500 2x6000 167(17) 2x550 380 3.0 1.5 220
    DL-21.0/105 21000 105 4.5 16 2 500 2x6000 167(17) 2x550 380 3.0 1.5 220
    DL-25.0/135 25000 135 4.5 16 3 500 3x6000 167(17) 3x550 380 6.3 2.1 220
    DL-32.6/160 32600 160 4.5 16 3 500 3x6000 167(17) 3x550 380 6.3 2.1 220
    DL-37.6/185 37600 185 4.5 16 3 500 3x6000 167(17) 3x550 380 6.3 2.1 220
    DL-42.7/220 42700 220 4.5 16 4 500 4x6000 167(17) 4x550 380 8.4 2.8 220
    DL-50.0/250 50000 250 4.5 16 4 500 4x6000 167(17) 4x550 380 9.0 3.0 220
    DL-55.0/280 55000 280 4.5 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DL-60.0/300 60000 300 4.5 16 2 630 2×11000 200 2×937 380 24.0 3.0 380
    DL-66.0/330 66000 330 4.5 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DL-70.0/375 70000 375 4.5 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DL-82.0/410 82000 410 4.5 16 3 630 3×11000 200 3×937 380 24.0 3.0 380
    DL-94.0/470 94000 470 4.5 16 4 630 4×11000 200 4×937 380 27.0 3.0 380
    DL-116.0/580 116000 580 4.5 16 4 630 4×11000 200 4×937 380 30.0 3.0 380
    SDJ Cooling Capacity: Based on an air inlet dry-bulb temperature of -25℃, evaporation temperature of -31℃, and refrigerant liquid temperature of 20℃.
    SDD Cooling Capacity: Based on an air inlet dry-bulb temperature of -18℃, evaporation temperature of -25℃, and refrigerant liquid temperature of 20℃.
    SDL Cooling Capacity: Based on an air inlet dry-bulb temperature of 0℃, evaporation temperature of -8℃, and refrigerant liquid temperature of 30℃.

    Product Display

    Different control ceiling light
    Customization product view 2
    Customization product view 3
    Customization product view 4
    Customization product view 5
    Customization product view 6

    Installation Dimensions

    Installation Dimensions Diagram

    Installation Size of Air Cooler

    MODEL L D D2 F E1 N H Inlet Cycle Pipe Inlet Port Water Outlet
    DL25/DD22/DJ15 1580 475 430 100 1380 1 604 12.7 19 G1.5*1 G2.5"
    DL40/DD30/DJ20 1430 550 460 150 1130 1 704 16 25 G1.5*1 G2.5"
    DL55/DD40/DJ30 1430 600 510 150 1130 1 704 16 25 G1.5*1 G2.5"
    DL80/DD60/DJ40 1780 617.5 545 150 740 2 804 19 38 G1.5*1 G2.5"
    DL105/DD80/DJ55 1780 667.5 595 150 740 2 804 19 38 G1.5*1 G2.5"
    DL135/DD100/DJ70 2230 667.5 595 150 643 3 804 19 38 G1.5*1 G2.5"
    DL160/DD120/DJ85 2230 712.5 635 150 643 3 804 19 42 G1.5*1 G2.5"
    DL185/DD140/DJ100 2830 667.5 595 150 643 3 804 22 50 G1.5*1 G2.5"
    DL220/DD160/DJ115 2830 712.5 635 150 632.5 4 804 25 50 G1.5*2 G3"
    DL250/DD180/DJ130 3180 712.5 635 150 720 4 804 25 50 G1.5*2 G4"
    DL280/DD200/DJ140 2252 860 775 186 925 2 1032 25 50 G1.5" G3"
    DL300/DD220/DJ150 2352 860 775 186 976 2 1032 25 50 G1.5" G3"
    DL330/DD250/DJ170 2702 860 775 186 766 3 1032 25 50 G1.5" G3"
    DL375/DD275/DJ190 2902 860 775 186 833 3 1032 25 50 G1.5" G4"
    DL410/DD310/DJ210 3062 860 775 186 886 3 1032 25 50 G1.5" G4"
    DL470/DD360/DJ250 3552 860 775 186 787 4 1082 25 50 G1.5" G4"
    DL580/DD440/DJ300 3786 860 775 186 846 4 1182 28 50 G1.5" G4"

    Application

    Cold storage application scenario 1
    Cold storage application scenario 2
    Cold storage application scenario 3
    Cold storage application scenario 4
    Fruit and vegetable preservation cold storage Special medical cold storage Flower preservation cold storage Red wine storage cold storage Aquatic product processing and storage cold storage Special testing cold storage Food processing cold storage

    Frequently Asked Questions (FAQ)

    What are the main differences between DJ, DD, and DL series air coolers?

    The models are designed for different temperature ranges: the DJ series operates for low temperatures (evaporation temp -31℃, 9mm fin space), DD series for medium temperatures (evaporation temp -25℃, 6mm fin space), and DL series for high/fresh-keeping temperatures (evaporation temp -8℃, 4.5mm fin space).

    How does the electric defrosting system ensure high energy efficiency?

    The unit utilizes high-insulation stainless steel heating tubes strategically distributed along the coil and drain plate. This configuration ensures short defrost cycles, uniform heat distribution, and reduced power consumption, with support for automated defrost control.

    What anti-corrosion protection is applied to the casing?

    The casing undergoes phosphating and surface spray treatments, providing a smooth finish, strong corrosion resistance, and prolonged operational lifespan in humid and cold storage conditions.

    What air tightness and manufacturing standards are verified?

    Every unit undergoes a strict 2.6 MPa air tightness pressure test. Furthermore, tubes are mechanically expanded with liquid pressure machinery to guarantee a tight aluminum fin-to-copper tube bond for optimal thermal conductivity.

    Is the unit cooler convenient to install and maintain?

    Yes, it features a slot-type bracket rack for straightforward mounting, easily detachable side plates and water pans, and centralized electrical wiring enclosed within a dedicated terminal box.

    What cold storage applications are these coolers suitable for?

    They are suitable for fruit and vegetable preservation, medical cold storage, flower preservation, red wine cellars, seafood/aquatic processing, food processing facilities, and specialized test chambers.