Lynxcool CO₂ Subcritical Refrigeration Compressor Unit is designed for refrigeration systems requiring stable high-pressure operation, reliable low-temperature performance, and long service life. Based on semi-hermetic reciprocating compressor technology, this unit uses natural CO₂ refrigerant (R744) and is engineered for commercial and industrial refrigeration applications including cold storage, food processing, pharmaceutical cooling, and industrial freezing systems.

With a dedicated CO₂ compression design, the unit combines a high-strength cylindrical cast iron body, optimized valve plate assembly, integrated safety protection, and efficient lubrication components to maintain stable operation under demanding refrigeration conditions. It provides an energy-efficient solution for customers seeking environmentally responsible refrigeration equipment with lower refrigerant impact

Key Features

High-Strength Design for CO₂ High-Pressure Applications

CO₂ refrigeration systems require equipment capable of handling higher operating pressures than conventional refrigerants. This unit adopts a ductile cast iron cylindrical body structure, which improves mechanical strength and provides stable pressure resistance during long-term operation.

The robust housing design helps maintain structural reliability in demanding applications such as industrial freezing, cold warehouses, and food processing refrigeration systems.

Natural CO₂ Refrigerant with Low Environmental Impact

Using CO₂ (R744) as the refrigerant, the unit supports the transition toward natural refrigerant-based cooling systems. CO₂ features zero ozone depletion potential (ODP) and very low global warming potential (GWP), making it suitable for applications requiring compliance with modern environmental regulations.

Compared with traditional synthetic refrigerants, CO₂ refrigeration technology provides an environmentally responsible option for long-term refrigeration system planning.

Optimized Valve Plate Assembly for Efficient Compression

The compressor uses an impact-resistant spring steel valve plate assembly to improve gas flow efficiency during suction and discharge processes.

The optimized valve design reduces unnecessary energy loss during compression, helping improve volumetric efficiency and maintain stable cooling performance under different operating conditions.

Integrated Safety Protection System

The unit incorporates a factory-installed safety relief valve and motor protection module to improve operational safety.

The protection system monitors key operating conditions including:

• Overcurrent
• Motor overheating
• Phase loss
• Phase reversal

These protection functions help reduce unexpected downtime and improve equipment reliability in continuous refrigeration applications.

Built-In Suction Gas Filtration System

A high-density suction gas filter is integrated into the compressor system to reduce contamination from entering internal components.

This design helps protect moving parts, reduce maintenance requirements, and support stable compressor performance during extended operation.

Low-Friction Composite Sliding Bearings

The compressor adopts composite material sliding bearings to support the crankshaft and moving components.

The low-friction bearing structure helps reduce mechanical wear, improve operational stability, and extend service life under high-pressure CO₂ refrigeration conditions.

Technical Specifications

Application Scope

The CO₂ Subcritical Refrigeration Compressor Unit is suitable for refrigeration systems where reliability, temperature control accuracy, and environmental performance are important.

Food Processing and Cold Storage

The unit is widely used in meat processing, seafood freezing, dairy storage, and food preservation facilities. Its stable low-temperature operation supports blast freezing, cold rooms, and process refrigeration systems.

Pharmaceutical and Temperature-Controlled Storage

For pharmaceutical warehouses, laboratories, and chemical storage facilities, the compressor provides reliable cooling performance where temperature stability is critical.

Industrial Freezing Systems

The unit can be integrated into industrial freezing equipment such as quick-freeze tunnels, spiral freezers, and production line refrigeration systems requiring continuous operation.

Commercial Refrigeration

It is suitable for supermarkets, retail cold rooms, and commercial refrigeration systems where energy efficiency and refrigerant compliance are key considerations.

CO₂ Cascade Refrigeration Systems

The compressor can be applied in CO₂/NH₃ cascade refrigeration systems as a low-stage compression component, providing an efficient solution for large-scale industrial refrigeration projects.

How to Select the Right CO₂ Subcritical Refrigeration Compressor Unit

Selecting a suitable CO₂ refrigeration compressor requires consideration of operating conditions, cooling capacity requirements, system design, and application environment.

Confirm Refrigeration Capacity Requirements

The compressor model should be selected according to the required cooling capacity, evaporating temperature, condensing conditions, and operating hours.

For applications such as cold storage and food freezing, the required refrigeration load may vary significantly depending on storage temperature, product type, room size, and door opening frequency. Selecting the correct displacement range helps maintain stable cooling performance while avoiding unnecessary energy consumption.

Lynxcool provides multiple SPS series models with different displacement capacities to match various refrigeration system requirements.

Evaluate Working Pressure and System Safety

CO₂ refrigeration systems operate under higher pressure conditions compared with many traditional refrigerants. The compressor must be designed specifically for CO₂ applications.

The CO₂ Subcritical Refrigeration Compressor Unit is engineered with a high-strength cylindrical body and integrated safety protection components to support operation up to 60 bar maximum working pressure.

Before installation, engineers should evaluate:

• System pressure requirements
• Refrigeration circuit design
• Safety valve configuration
• Operating temperature range

This ensures reliable operation throughout the equipment service life.

Choose According to Application Conditions

Different refrigeration applications require different compressor configurations.

For food processing and freezing projects, priority should be given to continuous operation stability and low-temperature performance.

For supermarkets and commercial refrigeration systems, energy efficiency, compact installation, and maintenance convenience are often more important.

For pharmaceutical and industrial applications, temperature accuracy and operational reliability are key factors during equipment selection.

Manufacturing Process and Quality Control

At Lynxcool, each CO₂ Subcritical Refrigeration Compressor Unit is manufactured according to strict production procedures to ensure mechanical reliability and consistent performance.

Precision Machining of Compressor Components

The compressor body, cylinder components, and internal mechanical parts require precise machining to maintain proper clearance and stable compression efficiency.

The cylindrical cast iron housing provides structural strength, while accurately processed moving components help reduce vibration and mechanical losses during operation.

Assembly and System Inspection

During assembly, key components including the motor system, valve plate assembly, bearings, and protection devices are inspected to ensure correct installation and reliable operation.

The integrated design reduces connection points inside the refrigeration system, helping improve system reliability and reduce potential leakage risks.

Performance Testing Before Delivery

Before shipment, refrigeration units undergo inspection procedures covering:

• Mechanical operation
• Electrical protection functions
• Pressure resistance
• Component installation quality
• Operating stability

These inspections help ensure that each unit meets the requirements of commercial and industrial refrigeration projects.

Why Choose Lynxcool CO₂ Refrigeration Compressor Unit

Specialized Refrigeration Manufacturing Experience

Lynxcool focuses on refrigeration equipment development and manufacturing, providing compressor units, refrigeration components, and complete cooling solutions for global customers.

The company understands the requirements of different industries, from cold chain logistics and food processing to industrial refrigeration projects.

CO₂ Refrigeration Technology Capability

CO₂ refrigeration systems require specialized engineering knowledge due to their high-pressure operating characteristics.

Lynxcool designs CO₂ compressor units with dedicated structures, safety protection systems, and components suitable for natural refrigerant applications.

Complete Refrigeration Product Supply

Besides CO₂ compressor units, Lynxcool provides a wider range of refrigeration products including refrigeration compressor units, evaporators, condensers, quick freezing equipment, and cold storage solutions.

This allows customers to obtain matched refrigeration equipment from one supplier.

Support for Global Projects

Lynxcool supports international customers with technical communication, product selection assistance, and customized refrigeration solutions according to project requirements.

From initial equipment selection to after-sales support, the company helps customers build reliable refrigeration systems.

Frequently Asked Questions

What refrigerant is used in the CO₂ Subcritical Refrigeration Compressor Unit?

The unit uses CO₂ (R744) natural refrigerant, which has zero ozone depletion potential (ODP) and a very low global warming potential (GWP).

It is suitable for customers looking for environmentally responsible refrigeration solutions.

What is the maximum working pressure of this CO₂ compressor unit?

The maximum working pressure of this unit is 60 bar.

The compressor body and internal components are designed for CO₂ refrigeration applications requiring high-pressure operation.

What type of compressor is used in this unit?

The CO₂ Subcritical Refrigeration Compressor Unit uses a semi-hermetic reciprocating compressor design.

This structure integrates the motor and compressor within a sealed housing, helping reduce leakage risks and improve operational reliability.

What industries can use this CO₂ refrigeration compressor?

The unit is suitable for:

• Food processing plants
• Cold storage warehouses
• Pharmaceutical refrigeration
• Industrial freezing systems
• Commercial refrigeration projects
• CO₂ cascade refrigeration systems

How does the built-in safety system protect the compressor?

The unit integrates a safety relief valve and motor protection module.

The protection system monitors abnormal conditions such as overcurrent, overheating, phase loss, and phase reversal to improve operational safety.

How do I choose the correct compressor model?

Selection depends on cooling capacity, evaporating temperature, refrigeration system design, operating pressure, and application requirements.

Lynxcool can provide model recommendations based on project parameters.

Can Lynxcool provide customized refrigeration solutions?

Yes. Lynxcool can support customized solutions according to customer requirements, including refrigeration system matching, equipment selection, and project application needs.

What maintenance is required for this compressor unit?

Regular inspection of safety devices, suction filters, lubrication conditions, electrical protection functions, and refrigeration system cleanliness is recommended to maintain reliable operation.

Inquiry for CO₂ Subcritical Refrigeration Compressor Unit

If you are looking for a reliable CO₂ Subcritical Refrigeration Compressor Unit manufacturer or supplier, Lynxcool can provide professional refrigeration solutions for commercial and industrial applications.

Contact Lynxcool for technical specifications, model selection support, and customized refrigeration system recommendations.