Refrigerated Truck Body

Qingdao Hailong Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of refrigerated truck body in China, featured by quality products and good service. Welcome to buy durable refrigerated truck body made in China here and get pricelist from our factory. Also, customized service is available.

• Composite Insulation Structure & Long-term Temperature Retention: Adopts a three-layer composite structure of "FRP anti-corrosion panel + high-density insulation core + aluminum alloy back panel". The insulation core is made of PU polyurethane (density ≥40kg/m³), EPS polystyrene or vacuum insulation panel (VIP), formed by high-pressure foaming in one piece with no splicing gaps. The thermal conductivity is as low as 0.022W/(m·K), which is 40% higher than traditional refrigerated carriages in insulation performance, and the heat preservation time after power failure is ≥8 hours (at ambient temperature 35℃).​
• Ultimate Lightweight & Energy Efficiency: The overall weight is 30%-40% lighter than traditional steel refrigerated carriages. For example, a 4.2-meter-class refrigerated carriage weighs only 1.1-1.5 tons (traditional steel is about 1.8-2.5 tons), and a 6.8-meter-class weighs 1.5-2.0 tons (traditional steel is about 2.8-3.5 tons), which effectively improves the load ratio. Fuel vehicles save 18%-25% of fuel costs annually, and new energy refrigerated vehicles increase their cruising range by 25%-35%.​
• Precision Temperature Control & Full Temperature Range Adaptation: Equipped with well-known imported/domestic refrigeration units (such as Carrier, Thermo King, Kaixue), the temperature control range covers -40℃~15℃, and the temperature fluctuation ≤±0.8℃, meeting the full-scenario needs of deep cold freezing (-40℃~-18℃), frozen preservation (-18℃~-10℃), refrigerated preservation (0℃~8℃), constant temperature transportation (10℃~15℃), adapting to the transportation of different temperature-controlled goods.​
• High Sealing & Weather Resistance · Safe Compliance: The carriage adopts an overall sealed design, with multi-layer cold-resistant sealing strips on door frames and gaps, reaching IP67 dustproof and waterproof level, effectively blocking the penetration of external temperature and humidity; the surface is treated with anti-ultraviolet and anti-corrosion, adapting to extreme environments of -40℃~65℃ without frost and condensation problems; complying with GB/T 21464-2023 "Performance Requirements and Test Methods for Refrigerated Vehicles", with GSP certification adaptation capability, and can provide temperature and humidity traceability reports.​
• Intelligent Operation & Maintenance · Flexible Customization: Can be customized in size (length 3-14m, width 2.2-2.6m, height 2.0-3.2m), supporting single-temperature zone, dual-temperature zone and multi-temperature zone design (zoned temperature control without interference); equipped with intelligent temperature and humidity monitoring system (real-time
• collection, remote upload, abnormal alarm), supporting automatic temperature locking when opening the door and energy-saving mode switching; the aluminum alloy frame + composite panel structure has low maintenance cost, and the service life is as long as 15-20 years (traditional steel refrigerated carriages are about 8-12 years).​

Core Process Advantages​

 

• Integral Insulation Molding: Using high-pressure foaming integral molding process, the insulation core is closely attached to the panel and back panel, no bubbles or gaps, and the thermal conductivity is stable; the corners of the carriage adopt arc transition design to reduce cold bridge effect, improve temperature retention performance by 25%, and avoid cargo collision damage.​
• Precision Adaptation of Refrigeration System: Match the refrigeration unit power (5-30kW) according to the carriage size and temperature control requirements, optimize the air duct design (top diversion + side air supply) to ensure the temperature uniformity in the carriage ≤±1℃; support fuel-driven, electric-driven (adapting to new energy chassis) and dual-energy-driven modes. New energy models are equipped with lithium iron phosphate battery packs, with a cruising range of 150-300km.​
• Full-process Quality Control: Raw materials undergo thermal insulation performance test, low-temperature impact resistance test and sealing performance test; the production process real-time monitors foaming temperature, pressure and molding time; finished products pass high and low temperature cycle test, temperature uniformity test, heat preservation time test and salt spray test. Complete test reports are provided for each batch with traceable quality.​

Application Scenarios​

 

• Food Cold Chain: Deep cold transportation of frozen meat, seafood, quick-frozen food, ice cream, etc.; refrigerated preservation transportation of fruits and vegetables, dairy products, poultry and eggs, etc.; constant temperature preservation transportation of cooked food, pastries, etc.​
• Medical Cold Chain: Constant temperature (2℃~8℃) transportation of vaccines, biological agents, blood products, special drugs, etc., meeting GSP certification requirements.​
• Special Cold Chain: Transportation of special temperature-controlled goods such as chemical raw materials and electronic components (such as -40℃ deep cold, 10℃~15℃ constant temperature).​
• New Energy Supporting: Special carriages for pure electric refrigerated trucks and hydrogen energy refrigerated trucks, suitable for urban distribution and short-distance cold chain transportation scenarios.​
• Retail Distribution: End-of-line distribution refrigerated carriages for supermarkets, convenience stores and fresh e-commerce, supporting miniaturized and flexible customization.​

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Typical Application Cases

 

• Medical Cold Chain - 4.2m Dual-temperature Zone Refrigerated Carriage: Customized 4.2m dual-temperature zone refrigerated carriage for a medical group, adopting PU polyurethane insulation core + vacuum insulation panel composite structure, temperature control range 2℃~8℃ (medicine zone), 10℃~15℃ (consumables zone), temperature fluctuation ≤±0.5℃, equipped with GSP certification-adapted temperature and humidity monitoring system. It has been put into batch cross-provincial transportation of vaccines, with a cumulative transportation mileage of over 500,000km and a temperature qualification rate of 100%.​
• Food Deep Cold - 6.8m Deep Cold Frozen Carriage: Supplied 6.8m deep cold carriage for a cold chain logistics enterprise, equipped with Carrier independent refrigeration unit, minimum temperature control of -40℃, heat preservation time of 12 hours (power-off state), carriage weight only 1.8 tons, 38% lighter than traditional steel carriages, saving about 32,000 yuan in fuel costs annually, and has been applied to long-distance transportation of seafood.​
• New Energy Urban Distribution - 3.2m Electric Refrigerated Carriage: Customized 3.2m pure electric refrigerated carriage, adapted to Foton New Energy chassis, equipped with lithium iron phosphate battery pack and electric refrigeration unit, cruising range of 220km, temperature control range 0℃~8℃, used for end-of-line distribution of fresh e-commerce in cities. The daily operating cost is 60% lower than that of the fuel version, and it has been put into batch use in first-tier cities.​

Quality Assurance​

 

• Test Reports: Provide thermal insulation performance test report, temperature uniformity test report, sealing performance test report, refrigeration unit operation test report, temperature and humidity monitoring system calibration report, etc.​
• After-sales Commitment: For non-human damage, the carriage warranty is 5 years (core insulation structure warranty 10 years), and the refrigeration unit warranty is 2 years (according to the manufacturer's standards); provide free installation and commissioning, GSP certification guidance, regular maintenance plans, and lifelong parts replacement and refrigeration system maintenance services.​
• Quality Standards: Strictly comply with GB/T 21464-2023 "Performance Requirements and Test Methods for Refrigerated Vehicles", GB/T 24504-2023 "Technical Conditions for Composite Panel Carriages for Road Transportation", GSP "Good Supply Practice for Pharmaceutical Products", ISO 22000 Food Safety Management System Standard.​

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