This semi-hermetic single-stage screw refrigeration compressor unit features a semi-hermetic design, integrating the motor and screw mechanism within a single sealed housing. This reduces the risk of refrigerant leakage and enhances system reliability. Its compact design simplifies installation and maintenance, making it particularly suitable for refrigeration systems with stringent requirements regarding space constraints, energy consumption, and long-term operational stability.

Specification

Technical Features and Advantages

Self-developed 5/6 Asymmetric Rotor Profile

The Semi-hermetic Single-Stage Screw Refrigeration Compressor Unit uses Lynxcool’s proprietary 5/6 rotor design, optimizing the meshing process between male and female rotors. The improved rotor geometry reduces internal leakage, mechanical vibration, and compression loss, helping the compressor maintain stable efficiency during continuous operation.

Integrated Semi-hermetic Structure

The compressor adopts an integrated motor and compression chamber design. This structure reduces external connection points, minimizes refrigerant leakage risks, and provides better protection for internal components in demanding industrial environments.

The compact housing integrates key components including suction filters, shut-off valves, temperature sensors, and protection devices, reducing installation space requirements and simplifying system layout.

High-efficiency Oil Separation System

A multi-stage oil separation system is installed inside the compressor unit to improve oil recovery efficiency. Efficient oil management reduces oil circulation into the refrigeration system, helping maintain clean heat exchangers and stable heat transfer performance.

The optimized oil return design supports long-term operation under low-temperature and heavy-load conditions.

Advanced Motor Protection and Monitoring

The built-in motor protection module continuously monitors operating conditions, including:

• Motor overheating
• Phase loss
• Phase sequence error
• Abnormal operating conditions

The intelligent control system provides real-time operation feedback, allowing operators to monitor compressor status and improve maintenance efficiency.

Multi-bearing Rotor Support System

The compressor adopts a precision multi-bearing structure to support rotor operation under high load conditions. The optimized bearing arrangement reduces axial and radial movement, improving operating stability and extending service life.

Flexible Capacity Regulation

The unit supports adjustable capacity control to match different cooling demands. The step-less regulation system allows the compressor to operate efficiently under partial-load conditions, reducing unnecessary energy consumption during seasonal or variable refrigeration loads.

Low-temperature Refrigeration Capability

The Semi-hermetic Single-Stage Screw Refrigeration Compressor Unit is designed for low and medium-temperature applications with evaporating temperatures down to -55℃.

It is suitable for:

• Frozen food storage
• Blast freezing systems
• Cold chain warehouses
• Industrial process cooling

Flexible Installation Design

The suction and discharge shut-off valves support flexible installation layouts. The adjustable piping connection design helps engineers optimize machine room space utilization and simplify system integration.

Product Technical Specifications

The following tables summarize the technical specifications of Lynxcool’s Semi-hermetic Single-Stage Screw Refrigeration Compressor Unit:

(Additional 160-300 series available for higher refrigeration capacity requirements.)

Main Applications

Industrial Process Cooling

The compressor unit provides stable cooling performance for industrial processes requiring continuous temperature control, including chemical production, manufacturing plants, and energy-intensive facilities.

Food Processing and Cold Storage

Designed for refrigeration systems in:

• Meat and seafood processing
• Frozen food production
• Cold chain logistics
• Large cold storage warehouses

The unit supports reliable low-temperature operation for long-term storage and freezing applications.

Industrial Heat Pump Systems

The compressor can be integrated into industrial heat pump systems for heat recovery, process heating, and hot water production.

Commercial and Specialized Air Conditioning

Suitable for large-scale HVAC applications including:

• Industrial buildings
• Cleanrooms
• Hospitals
• Large commercial facilities

Why Choose Lynxcool Semi-hermetic Screw Compressor Unit?

Refrigeration Engineering Experience

Lynxcool provides complete refrigeration solutions covering compressor units, cold storage systems, and industrial cooling projects. Our engineering team supports equipment selection, system design, installation guidance, and after-sales service.

Reliable Manufacturing Process

Each Semi-hermetic Single-Stage Screw Refrigeration Compressor Unit undergoes strict quality control during machining, assembly, performance testing, and final inspection to ensure stable operation after delivery.

Customized Refrigeration Solutions

Different industries require different cooling conditions. Lynxcool provides customized compressor configurations according to:

• Refrigerant type
• Cooling capacity requirements
• Temperature range
• Installation conditions
• Control system requirements

Semi-hermetic vs Open-type Screw Compressor Unit: How to Choose?

When selecting a screw refrigeration compressor unit, the compressor structure directly affects installation method, maintenance requirements, system reliability, and operating cost.

Lynxcool provides both Semi-hermetic and Open-type Screw Compressor Units for different industrial refrigeration applications. The right choice depends on factors such as refrigerant type, cooling capacity, maintenance conditions, installation environment, and long-term operating requirements.

Comparison Table

Six-Step Project Service

System Design

Provide refrigeration system proposals, equipment selection, and technical solutions according to project requirements.

Component Selection and Manufacturing

Select suitable compressor models, valves, controllers, and refrigeration components based on operating conditions.

Production and Quality Inspection

Complete precision machining, assembly, and performance testing before shipment.

Installation Support

Provide installation guidance, commissioning assistance, and technical documentation.

System Optimization

Support operation adjustment to improve efficiency and reduce energy consumption.

After-sales Service

Offer technical consultation, maintenance support, and spare parts assistance throughout the equipment lifecycle.

FAQ

What refrigerants can be used with the Semi-hermetic Single-Stage Screw Refrigeration Compressor Unit?

The unit supports multiple refrigerants including ammonia R717, R22, R404A, R507A, R744, R290, and R1270. The final refrigerant selection depends on system design requirements and application conditions.

What temperature range can this screw compressor unit achieve?

The compressor is designed for industrial refrigeration applications with evaporating temperatures down to approximately -55℃, covering low-temperature freezing and medium-temperature cooling requirements.

What are the advantages of a semi-hermetic screw compressor design?

A semi-hermetic design integrates the motor and compressor into a sealed structure, reducing refrigerant leakage risks, improving protection, and increasing system reliability.

How does the compressor improve energy efficiency?

The optimized rotor profile, efficient oil separation system, and capacity regulation function allow the compressor to maintain higher efficiency under different load conditions.

Is this compressor suitable for cold storage projects?

Yes. It is widely used in cold storage warehouses, food processing plants, frozen food production lines, and cold chain logistics systems.

Can Lynxcool provide customized refrigeration solutions?

Yes. Lynxcool provides equipment selection, system design, manufacturing, installation support, and after-sales service according to project requirements.