Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit

The China supplier Lynxcool’s Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit is a highly reliable and energy-efficient solution for medium- and low-temperature refrigeration applications. Manufactured in China, this equipment combines proven engineering with international quality standards, delivering long-term durability, low refrigerant leakage, and easy maintenance.

Semi-Hermetic Motor and Leak-Free Design

One of the main advantages of Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit is its semi-hermetic construction. The motor is fully enclosed within the refrigerant circuit, eliminating the shaft seal, which is the most common source of leakage in open-type compressors. By integrating a sealed motor design:

● Refrigerant leaks are significantly reduced.

● The unit requires fewer maintenance interventions over its operational life.

● The motor is cooled directly by suction gas, eliminating the need for external fans and reducing auxiliary energy consumption.

Factory-Assembled Skid Package

This unit comes as a factory-assembled skid-mounted package, which includes:

Single-Stage Reciprocating Compression

The Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit uses a robust piston-cylinder mechanism designed for continuous operation in various environments. It offers:

● Broad operating range: evaporation temperatures +10 °C to −40 °C and condensing temperatures up to +55 °C.

● Cylinder unloading capacity control: 25%, 50%, 75%, 100% steps, which reduces start-up current and adapts to fluctuating loads.

● Proven performance in both light and heavy-duty applications.

Refrigerant Compatibility

The unit supports a wide range of refrigerants, including:

● R134a

● R404A

● R507A

● R22 (modified legacy models)

● R448A, R449A

This allows customers to configure the unit for specific applications and regulatory compliance, including HFC, HFO blends, and legacy HCFC refrigerants.

Application Areas

Supermarkets & Food Retail

● Operating range: −5 °C to −25 °C

● Ideal for remote condensing units, multi-deck display cases, walk-in coolers, and freezers.

● Compact, low-noise design ensures suitability for customer-facing retail environments.

● Cylinder unloading reduces energy use during off-peak periods.

Cold Storage & Warehousing

● Operating range: −18 °C to −35 °C

● Designed for medium and large cold stores for frozen food, dairy, and perishable goods.

● Multiple Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit can run in parallel with built-in redundancy for continuous operation.

Food Service & Hospitality

● Operating range: 0 °C to −20 °C

● Suitable for walk-in coolers, blast chillers, ice machines, and centralized kitchen refrigeration.

● Semi-hermetic design reduces refrigerant leakage in occupied buildings, ensuring compliance with F-Gas and ASHRAE 15 regulations.

Light Industrial Process Cooling

● Operating range: −10 °C to −40 °C

● Supports industrial processes such as plastic molding, printing, laser cutting, and electroplating.

● Built for continuous-duty industrial applications requiring precise temperature control.

Transport & Refrigerated Vehicles

● Operating range: −18 °C to −25 °C

● Ideal for refrigerated trucks, trailers, and shipping containers.

● Compact, vibration-resistant, and reliable starting across a wide range of ambient temperatures.

● Configurations support both diesel engine drive and shore-power operation.

Performance Specifications

Operational Benefits

· Lower Total Cost of Ownership: Reduced maintenance requirements and energy-efficient design decrease long-term operating costs.

· Reliability: Semi-hermetic design ensures fewer refrigerant leaks and extended system life.

· Flexibility: Supports multiple refrigerants and applications, from commercial refrigeration to industrial process cooling.

· Energy Efficiency: Cylinder unloading and direct gas motor cooling minimize power consumption during partial load operation.

Control and Safety Features

· Integrated PLC control panel for seamless system operation.

· Built-in safety mechanisms protect against overpressure, over-temperature, and electrical faults.

· Field-ready design allows quick installation and reduces the risk of errors during commissioning.

Why Choose Lynxcool?

· Proven Manufacturing Excellence: Over 20 years of producing Semi-Hermetic Single-Stage Reciprocating Refrigeration Compressor Unit in China, with thousands of units delivered globally.

· ISO 9001 Quality Assurance: 100% factory-tested units ensure defect-free performance before shipment.

· Globally Serviceable Components: Core compressors from Bitzer, Embraco, or Dorin; electrical components from Siemens, Schneider, Delta; instrumentation from Danfoss or Emerson. Local spare parts are easily sourced worldwide.

· Cost Advantage: China-origin production delivers high-quality, internationally certified equipment at 20–35% lower cost than European alternatives.

· Engineering Support: Dedicated application engineers assist with load calculations, compressor selection, refrigerant choice, and control strategy design.