Smart Cooling
Advanced refrigeration technology with variable speed compressors
Precision Control
Digital controls with ±1°C temperature accuracy
Energy Efficiency
High EER ratings with eco-friendly refrigerants
Easy Installation
Plug-and-play design with comprehensive support
Direct Expansion (DX) Units Manufacturer:
Your Complete Guide to Energy-Efficient Cooling
Quick Facts: Direct Expansion (DX) Units
Essential information at a glance
| Feature | Benefit | Best For |
|---|---|---|
|
Energy Savings
Advanced efficiency technology
|
Up to 30%
less energy use
|
Commercial buildings
|
|
Space Saving
Compact design solution
|
50%
less room needed
|
Small buildings
|
|
Quick Installation
Streamlined setup process
|
Plug-and-play
setup
|
Fast projects
|
|
Temperature Control
Precision monitoring system
|
Precise ±1°C
control
|
Hospitals, labs
|
Performance Metrics
Installation Benefits
Technical Support
What Are Direct Expansion (DX) Units?
Direct Expansion (DX) Units are special air conditioning systems that cool air directly. The unit integrates air filtration, temperature reduction, dehumidification, heating, and humidification functions. Unlike other systems, they don't need water pipes or cooling towers. Instead, these smart machines use refrigerant to cool air right away.
SongXin - Leading DX Units Manufacturer
As a leading Direct Expansion (DX) Units Manufacturer, SongXin makes these systems for buildings of all sizes. From small offices to huge factories, these units work everywhere.
Key System Advantages:
Integrated Functions
How Do Direct Expansion
(DX) Units Work?
Understanding how these systems work is simple. Every Direct Expansion (DX) Units system has two main parts:
Outdoor Unit
External system components
Indoor Unit
Interior air handling system
Operation Process Flow
Compression
The outdoor unit compresses refrigerant gas, increasing pressure and temperature
Condensation
Hot gas moves to the condenser where it cools down and becomes liquid
Expansion
Cooled refrigerant flows to the indoor unit through expansion valve
Direct Cooling
Indoor unit uses cold refrigerant to cool the air directly and continuously
Why Choose Direct Expansion Systems?
Why Choose SongXin
SongXin stands out as a Direct Expansion (DX) Units Manufacturer because we offer:
Experience
Proven track record
Complete Range
All capacity needs
Global Certifications
Quality assurance
Customer Support
Always available
Warranty
Peace of mind
Customization
Tailored solutions
Product Categories – SongXin
Direct Expansion (DX) Units
Comprehensive range of DX units designed for diverse applications, from portable solutions to large-scale installations.
Specially designed for temporary structures and outdoor applications.
Applications
Key Advantages
Large-capacity packaged units installed directly on building rooftops.
Applications
Key Advantages
Consists of separate outdoor condensing units and indoor air-handling units.
Applications
Key Advantages
Hidden installation, connected with air ducts for multi-zone cooling/heating.
Applications
Key Advantages
Product Category Comparison
| Category | Capacity | Installation | Best For | Action |
|---|---|---|---|---|
|
⛺
Tent Air Conditioners
|
12-50 kW | Portable | Temporary structures | |
|
🏢
DX Rooftop Units
|
100-520 kW | Rooftop | Large buildings | |
|
🧩
DX Split System
|
12-150 kW | Split | Small-medium spaces | |
|
🌀
Ducted DX Units
|
20-200 kW | Concealed | Multi-zone comfort |
Need Help Choosing the Right System?
Our technical experts can help you select the perfect DX unit for your specific application and requirements.
Flexible Financing & Worldwide Delivery You Can Trust
Lower cooling expenses without compromising performance. Enjoy flexible payment options with fast, dependable shipping worldwide.
Multiple Secure Payment Options
Choose the payment method that suits you best
Complete command over every transaction with T/T, L/C, or Western Union—ensuring you have flexible payment terms that match your business requirements.
Efficient Global Shipping
Serving clients in more than 40 countries
We guarantee prompt dispatch so your DX units arrive exactly when your operations require them. Select from EXW, FOB, CIF, or DDP to match your project's logistics.
Worldwide Service Network
Expert support through trusted local partners
Access expert installation support and comprehensive after-sales service through our established network of trusted local partners in key markets around the globe.
Professional setup and commissioning
Round-the-clock assistance
Maintenance and parts supply
Trusted network worldwide
Ready for a Worry-Free Purchase Experience?
Get flexible payment terms, reliable worldwide shipping, and comprehensive support for your DX units.
Factory Tour & Quality Control
Our production facilities are equipped with modern automated assembly lines, CNC machining centers, and precision testing equipment.
Advanced Production Line
Real-time monitoring & quality control
Our Quality Assurance
From raw material inspection to final product delivery, every unit undergoes strict quality checks through our three-stage process.
ISO 9001 Certified
Quality management excellence
Guaranteed high product reliability and long service life through systematic quality control.
Three-Stage Quality Control
Comprehensive quality assurance at every step of production
Manufacturing Strength
Premium components sourced from world-renowned brands including scroll compressors, aluminum fins, and copper tubes.
In-Process Control
Each assembly stage is monitored to ensure accuracy and consistency throughout the production process.
End-of-Line Testing
Every DX unit undergoes comprehensive performance testing for all critical parameters.
Safety & Compliance Testing You Can Trust
All DX units comply with international standards and certifications to ensure safe and reliable operation for your critical applications.
International Standards Compliance
Certified for global safety and performance requirements
Every DX unit undergoes rigorous testing and certification processes to meet the most stringent international safety and performance standards, ensuring reliable operation in any environment.
Advanced Protective Features
Rigorous Testing Protocols
Extreme condition validation for maximum reliability
Every model undergoes continuous run testing and extreme condition simulation to validate durability and safety across the full operational temperature range.
Need Detailed Safety & Compliance Documentation?
Access complete certification documents, test reports, and compliance specifications for your project requirements.
Application Scenarios of Direct Expansion (DX) Units
DX units deliver reliable cooling/heating performance with compact design and flexible installation, perfect for diverse environments requiring efficient climate control.
Commercial Buildings
Perfect for offices, retail stores, and educational facilities requiring flexible climate control.
Industrial & Special Facilities
Precision climate control for manufacturing, laboratories, and critical infrastructure.
Hospitality & Public Spaces
Comfort-focused solutions for hotels, healthcare facilities, and public venues.
Temporary & Mobile Applications
Portable solutions for military operations, emergency response, and temporary installations.
Why Choose DX Units?
Direct Expansion units deliver superior performance across all application scenarios with proven reliability and efficiency.
Engineered Structure & Premium Components
SongXin DX Units feature advanced engineering with premium components ensuring superior performance, durability, and reliability.
Frame
High-strength aluminum alloy with anodized surface treatment.
Panels
Color-coated steel with polyurethane foam insulation.
Access Doors
Aluminum construction with sealing gaskets.
Fan & Motor
Dual-inlet fans with internationally renowned motors.
Air Dampers
High-strength aluminum with precise control.
Filters
Multiple options: metal, electrostatic, carbon.
Heating Options
Electric, hot water, or steam coils available.
Humidification
Electrode steam, misting, or membrane types.
Unit Structure
Special panel-to-frame connection with double-ring sealing strips ensures outstanding airtightness and extremely low air leakage rate.
Performance Features
Advanced engineering ensures optimal thermal performance and whisper-quiet operation.
Customization
Flexible configuration options to meet specific project requirements and operational needs.
Precision Engineering Excellence
Every component is meticulously designed and rigorously tested to ensure optimal performance, energy efficiency, and long-term reliability in demanding applications.
Frequently Asked Questions
Get instant answers to common questions about our DX Units, from technical specifications to customization options.
What is the typical cooling range of your DX Units?
Our DX Units cover 15–75 kW for ducted models, up to 510 kW for rooftop models, ensuring flexibility for small to large-scale projects.
Can you provide inverter (variable frequency) models?
Yes, we offer both fixed-speed and inverter-driven options to meet different energy efficiency requirements.
Are your units suitable for high-temperature or low-temperature regions?
Absolutely. Our units are tested for reliable operation between -20°C and 55°C, making them suitable for tropical, desert, and cold climates.
Do you provide installation and commissioning services?
We provide on-site guidance, online commissioning support, and detailed installation manuals. For large projects, we can arrange engineer visits.
Can I customize units for special requirements (such as filtration or medical-grade air)?
Yes. We support custom configurations for industrial, commercial, and healthcare applications, including advanced filtration, humidification, and sterilization modules.
Still Have Questions?
Our technical experts are ready to provide detailed answers and customized solutions for your specific requirements.