Solar-powered container refrigeration room with energy storage system by PAULAIR

Building Energy Environment & Commercial Air Conditioning

Solar Energy Generation and Storage Container Refrigeration Room

Explore Solar Cold Storage Solutions

Commercial and industrial refrigeration units and accessories by PAULAIR

Commercial & Industrial Refrigeration & Cold Chain

Reliable Refrigeration Units & Accessories

Explore Refrigeration Units & Accessories

PAULAIR container cold storage and refrigeration equipment for cold chain solutions

Paulair Passive Building Technology (Shandong) Co., Ltd.

Founded in 2017, Paulair is a national high-tech enterprise and a provincial “Specialized, Refined, Unique and Innovative” SME. We focus on energy and environment, HVAC, commercial and industrial refrigeration, and cold chain solutions.

With Beijing as our registered and sales center, and Jinan & Qingdao as our production and R&D bases, we have built an integrated business system covering product R&D, technical design, manufacturing, system solutions and overseas services.

Our business is divided into two core parts:
1. Building Energy Environment & Commercial Air Conditioning
2. Commercial & Industrial Refrigeration & Cold Chain Solutions

We provide energy & environmental integrated units, five-constant air conditioning, duct type AC, refrigeration / freezing / quick-freezing units, portable container cold storages, and customized cold chain solutions for food processing, agricultural storage, cold chain logistics and industrial applications.

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Established

High-Tech

National Enterprise

CE

EU Certified

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Patents & Copyrights

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Factory Area m²

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Units / Year

HVAC & Building
Energy

Energy & environmental integrated units, five-constant air conditioning and duct type AC for residential, office, commercial buildings and factories.

Commercial & Industrial Refrigeration

Refrigeration, freezing and quick-freezing units for food processing, cold storage, logistics and industrial applications.

Cold Chain & Container Cold Storage

Portable container cold storages, intelligent rapid-freezing warehouses and customized cold chain solutions.

OEM/ODM &
Technical Support

Independent control system R&D, customization, equipment selection, remote debugging, training and spare parts support.

From HVAC to Cold Chain, We Engineer Efficient and Reliable Solutions.

Founded in 2017 | National High-Tech Enterprise | CE Certified | 31+ Patents & Software Copyrights

Why Choose Paulair

Your Reliable Partner

Founded in 2017

National high-tech enterprise and provincial specialized SME.

10+ Years Engineering Experience

Core technical team from Panasonic, Trane, Siemens, Haier and Hisense backgrounds.

Independent R&D & Control System

4 R&D engineers, 2 system engineers, 2 invention patents, 16 utility model patents, 13 software patents.

Energy-Efficient Technology

Modular assembly, reheating defrosting, condenser cross-flow technology and variable-frequency control. Energy saving approx. 20%–40% under suitable conditions.

Strict Quality Control

Incoming inspection, air-tightness test, pressure test, vacuum test, electrical safety test, refrigeration performance test, temperature test, whole machine operation test and final inspection.

One-Year Warranty & 48-Hour Response

Remote technical support, installation guidance, debugging, training and spare parts.

Factory & Manufacturing Capability

Jinan & Qingdao Bases

Two factory sites in Jinan and Qingdao
Total factory area: 12,000 m²
Office and R&D area: 1,000 m²
2 production lines
Monthly production capacity: 100 units
Annual refrigeration units: 1,000 units
Annual container cold storages: 300 units
Independent testing and inspection area
5–8 professional technicians
3–5 overseas sales representatives

R&D & Technology

Innovation Driven

4 R&D engineers and 2 system engineers, all with 10 years of industry experience.

Core technical personnel have working backgrounds in Panasonic, Trane, Siemens, Haier and Hisense.

Independent control system R&D capability.

Refrigeration system design, optimization and customization.

OEM/ODM business supported.

Technology Highlights

Modular assembly design
Reheating defrosting technology
Condenser cross-flow technology
Variable-frequency control
Wide operating condition design
Energy saving approx. 20%–40% under suitable conditions

Actual energy-saving effect depends on ambient temperature, storage temperature, load and operating conditions.

FAQ

Frequently Asked Questions

Paulair is a manufacturer with production and R&D bases in Jinan and Qingdao, and a sales center in Beijing.

HVAC equipment, commercial air conditioning, refrigeration / freezing / quick-freezing units, portable container cold storages and customized cold chain solutions.

Yes. We support OEM/ODM business for a certain number of products and can customize refrigeration systems and cold storage.

One-year warranty. After-sales response within 48 hours.

Yes, optional solar power generation and storage systems can be provided according to customer needs.

Yes. Our products have obtained EU CE certification.

Compared with traditional fixed-frequency units, energy saving can reach approximately 20%–40% under suitable conditions. Actual effect depends on ambient temperature, storage temperature, load and operating conditions.

Yes. We welcome customers to visit our Jinan and Qingdao factories.

Our Products

Container Cold Rooms, Refrigeration Units & HVAC Solutions

Container Cold Room for Temperate Fruits

Tailored for seasonal harvests, the Container Cold Room for Temperate Fruits offers customizable 20-foot, 40-foot, and non-standard dimensions. Matched to your exact fruit loading volume and ambient climate, it features multi-temperature zones and IoT tracking to keep delicate table grapes and cherries market-ready.

Container Cold Room for Tropical Fruits

Engineered for harsh tropical climates, the Container Cold Room for Tropical Fruits comes in custom 20ft, 40ft, and non-standard dimensions. Matched precisely to your loading volume and entry temperatures, it features multi-zone temp control, dehumidification, and automated air circulation for sensitive exotic fruits.

Container Cold Room for Green Vegetables

Paulair, a China Container Cold Room for Green Vegetables manufacturer, keeps lettuce, spinach and other green vegetables fresh at 0–5℃ with 90–95% humidity. We fit every unit to your vegetable type, load volume and incoming temperature—no fixed settings. PLC control and optional IoT remote monitoring let you track temperature and alarms from anywhere. 20ft/40ft options, EU CE certified, one-year warranty.

Container Cold Room for Root Vegetables

Engineered for potatoes, carrots, onions, ginger, and sweet potatoes, the Container Cold Room for Root Vegetables provides -25°C to +25°C temperature control and 85%–90% humidity regulation. Available in 20ft, 40ft, and custom sizes, it offers tailored multi-temp zones, light-shielding, micro-ventilation, and IoT monitoring for optimal long-term preservation and transit.

Container Cold Room for Flowering Plants

Engineered for fresh-cut flowers and sensitive plants, the Container Cold Room for Flowering Plants maintains +2°C to +15°C temperature control and active humidity management. Available in 20ft, 40ft, and custom sizes, it incorporates tailored flower racks, ethylene scrubbers, micro-ventilation, and IoT monitoring to preserve bloom quality during long-haul transit and export logistics.

Container Cold Room for Poultry Eggs

The Container Cold Room for Poultry Eggs is designed for the low-temperature storage, turnover transport, and cold-chain distribution of eggs, duck eggs, and quail eggs. Ideal for breeding bases, processing plants, wholesalers, and logistics providers, it features customizable refrigeration, insulation, air circulation, and temp/humidity control systems. Serving as a versatile mobile cold store, it allows flexible capacity expansion to meet varying refrigeration demands.
Core temperature range：2℃～8℃
Container specifications: 20ft / 40ft / Customized non-standard
Control method: PLC temperature control, optional temperature and humidity monitoring as well as IoT monitoring
Applications: Poultry and egg storage, direct delivery from the source, cold chain transportation, port transfer, supermarket distribution

Email Us

paulair.marketing@gmail.com

Call Us

+86-13335127698

Address

Xinyuan Avenue, Sangzidian Subdistrict, Tianqiao Borough, Jinan City, Shandong Province, China

Get a Custom HVAC or Cold Chain Solution

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News

Latest Company & Cold Chain Industry Updates

2026-10-26

How Can a Container Cold Room for Green Vegetables Keep Produce Fresher and Reduce Post-Harvest Losses

A Container Cold Room for Green Vegetables provides a practical way to manage temperature, humidity, airflow, and storage conditions for fresh produce after harvesting. For farms, vegetable wholesalers, food distributors, and agricultural businesses, choosing the right cold storage solution can help preserve freshness, maintain product quality, and improve supply chain efficiency. This guide explains how container cold rooms work, which factors influence storage performance, and how to select a suitable system for your operation with guidance from Paulair.

2026-10-09

Container Blast Freezer Room Improves Food Processing Efficiency

Facing the need for rapid freezing of large quantities of food, the container blast freezer room demonstrates clear advantages in food processing thanks to its powerful refrigeration capacity and compact structure.

2026-10-09

Container Freezer Room Meets Low-Temperature Storage Needs

In the meat, seafood and frozen food industries, low-temperature storage is not a single set point but a range of operating conditions. A container freezer room that holds -18°C on paper may struggle when warm product enters in large batches, when doors open frequently, or when summer ambient temperatures push the condensing unit beyond its comfort zone. For processors and distributors, the practical question is not whether a unit can reach a target temperature, but whether it can hold that temperature consistently under real loading patterns.

2026-10-09

Container Cold Room Supports Fresh Supply Chain Upgrades

Fresh food supply chains have changed faster than most cold storage infrastructure. E-commerce orders arrive in smaller batches and shorter cycles, cross-border trade moves perishable goods across longer distances, and consumers expect consistent quality from origin to shelf. For producers, distributors and logistics providers, the bottleneck is often not the refrigerated truck but the first and last storage points: the origin collection point, the distribution hub and the temporary holding area.