CO₂ Subcritical Refrigeration Compressor Unit

The CO₂ Subcritical Refrigeration Compressor Unit is engineered exclusively for CO₂ (R744) subcritical compression cycles, providing reliable, high-pressure operation with energy efficiency and environmental sustainability. Designed and manufactured in China, this series includes 19 models with a displacement range of 1.5 to 48.5 m³/h (50 Hz), making it suitable for both compact commercial systems and large industrial installations.

CO₂ as a natural refrigerant has GWP = 1 and ODP = 0, positioning the SPS Series as a forward-looking solution for regulatory compliance and sustainable refrigeration. The series is ideal for food processing, pharmaceutical, chemical, and cold chain logistics industries.

Application Scope

The CO₂ Subcritical Refrigeration Compressor Unit is ideally suited for deployment across a broad range of industries and applications where sustainable, high-performance refrigeration is essential:

● Food Processing & Preservation: Blast freezing, chilling tunnels, and process cooling in meat, seafood, dairy, and convenience food manufacturing

● Cold Chain Logistics: Temperature-controlled warehousing, distribution centers, and refrigerated transport infrastructure

● Pharmaceutical & Chemical Industry: Precise low-temperature process cooling, chemical reaction temperature control, and pharmaceutical cold storage

● Commercial Refrigeration: Supermarket display cases, convenience store refrigeration, and food retail cold rooms

● CO₂ Heat Pump Systems: High-efficiency heat pump water heaters, industrial process heating, and waste heat recovery applications

● CO₂/NH₃ Cascade Systems: Low-stage CO₂ compression in cascade refrigeration systems paired with ammonia high-stage circuits

● Industrial Freezing: Quick-freeze tunnels, spiral freezers, and cryogenic processing applications

● Safety-Critical Environments: Applications in food production, pharmaceutical facilities, and public spaces where refrigerant safety is paramount

What are the features of this product?

Cylindrical Body Design for High Pressure

The SPS Series features a cylindrical ductile cast iron body that uniformly distributes internal pressure stresses, enabling safe operation at up to 60 bar, which is essential for CO₂ refrigeration.

Environmentally Safe Natural Refrigerant

Designed exclusively for CO₂, the SPS Series offers negligible GWP impact, non-toxicity, and chemical stability, making it ideal for safety-critical facilities.

Integrated Safety Relief Valve

Each unit includes a factory-installed safety relief valve to prevent overpressure events, ensuring safe operation under all conditions.

High-Density Suction Gas Filter

A built-in filter protects the compressor motor and internal components from particulate contamination, extending service life and reducing maintenance.

High-Efficiency Valve Plate Assembly

Impact-resistant spring steel valves provide rapid and reliable gas exchange, maximizing volumetric efficiency and minimizing losses.

Composite Material Sliding Bearings

Advanced composite bearings deliver low-friction, reliable support for crankshaft and moving components under high-pressure CO₂ loads.

Integrated Motor Protection Module

Continuous monitoring protects the motor from overcurrent, overheating, phase loss, or reversal, ensuring long-term operational safety.

Key Technical Specifications

Sustainability & Future-Readiness

The CO₂ Subcritical Refrigeration Compressor Unit aligns with global CO₂ refrigeration trends and regulatory frameworks such as EU F-Gas and Kigali Amendment. It enables low-carbon, sustainable, and future-proof systems while providing high thermodynamic performance, energy efficiency, and compatibility with heat recovery solutions.

Why Choose the SPS Series CO₂Subcritical Refrigeration Compressor Unit?

• Purpose-Built for CO₂: Every design decision in the SPS Series — from the cylindrical high-pressure body to the impact-resistant valve reeds — has been made with the specific demands of CO₂ compression in mind, delivering performance and reliability that generic compressors adapted for CO₂ service cannot match.
• Uncompromising Safety: With a 60 bar pressure rating, integrated safety relief valve, and comprehensive motor protection, the SPS Series sets the standard for safe CO₂ compressor operation.
• Environmental Leadership: CO₂ is the refrigerant of the future — and the SPS Series is ready to power that future today.
• Broad Application Coverage: With 19 models spanning 1.5 to 48.5 m³/h, the SPS Series addresses the full range of commercial and industrial CO₂ refrigeration system requirements.
• Low Maintenance, Long Life: High-quality composite bearings, spring steel valves, and integrated filtration combine to minimize wear, reduce service intervals, and extend compressor operational life.

Why Partner with Lynxcool?

Engineering Expertise: Advanced thermodynamics, mechanical design, and system optimization.

Complete Product Portfolio: Compressors, condensing units, cold room systems, and components in one ecosystem.

Sustainability Commitment: Supports natural refrigerants and energy-efficient technologies.

Global Reach & Local Support: Worldwide technical support, spare parts, and engineering assistance.

Trusted Quality: Rigorous inspection, performance testing, and international certifications.

Innovation for Tomorrow: Investing in next-generation compressor technologies and smart controls.

Application Range

FAQ

Q1: What refrigerant does the SPS Series use?

A: The SPS Series is designed exclusively for CO₂ (R744) as a natural refrigerant, which has GWP = 1 and ODP = 0, making it environmentally friendly and safe for use in food, pharmaceutical, and cold chain applications.

Q2: What are the main applications of the CO₂ Subcritical Refrigeration Compressor Unit?

A: The SPS Series is suitable for industrial and commercial CO₂ refrigeration, including food processing, cold chain logistics, pharmaceutical cold storage, commercial refrigeration, CO₂ heat pump systems, cascade refrigeration systems, and industrial freezing applications.

Q3: What is the maximum working pressure of the SPS Series compressor?

A: The SPS Series can safely operate at a maximum working pressure of 60 bar, thanks to its cylindrical ductile cast iron body and integrated safety relief valve, which ensures reliable operation under high-pressure CO₂ conditions.