Modern refrigeration and air-conditioning systems require more than reliable compressors and refrigerants. The right compressor oil plays a vital role in lubrication, wear reduction, thermal stability, and long-term equipment performance.
Sunice refrigeration oils from Japan Sun Oil Company, Ltd. offer lubrication solutions for selected refrigeration, commercial air-conditioning, and automotive A/C applications. The product range includes synthetic polyolester (POE) oils, HYBRID refrigeration oils, and dedicated automotive air-conditioning oils designed for specific refrigerants and compressor technologies.
Through C. W. Mackie PLC, businesses in Sri Lanka can explore Sunice refrigeration oil solutions for industrial refrigeration, commercial cooling, cold storage, and automotive air-conditioning applications.
In this guide, we explore the Sunice product range, its applications, and the key factors to consider when selecting the right refrigeration compressor oil.
Table of Contents
Why Is Refrigeration Compressor Oil Important?
The compressor is a critical component of a refrigeration or air-conditioning system. Its internal moving parts operate under pressure, friction, and changing temperatures. The correct compressor oil helps maintain lubrication and supports reliable operation under the system’s intended operating conditions.
Suitable refrigeration oil can help provide:
- Effective lubrication of moving components
- Reduced friction and mechanical wear
- Thermal and chemical stability
- Protection against corrosion
- Reliable compressor operation
- Support for longer equipment service life
However, choosing refrigeration oil involves more than matching a viscosity grade. Oil compatibility depends on the refrigerant, compressor design, operating conditions, and equipment manufacturer’s specifications.
Using an unsuitable oil can affect system performance and reliability. Always consult the compressor manufacturer’s recommendations and the oil supplier’s technical documentation before selecting or changing a product.
Sunice Synthetic Refrigeration Oil – SL Series
The Sunice SL series consists of polyolester (POE) synthetic refrigeration oils developed for selected refrigeration and air-conditioning compressors using HFC and HFO refrigerants.
According to the manufacturer’s product information, the SL series offers properties including:
- Hydrolytic stability
- Thermal stability
- Lubricity
- Electrical insulating properties
- Corrosion protection
- Support for stable refrigeration system operation
The range is intended for applications such as refrigerators, chillers, display showcases, dehumidifiers, and air-conditioning equipment, subject to the specific product’s application recommendations.
1. Sunice SL-32S
Sunice SL-32S is a synthetic POE refrigeration oil with an ISO viscosity grade of 32. It is intended for suitable refrigeration and air-conditioning compressors using compatible refrigerants.
The manufacturer’s catalogue lists applications involving refrigerants such as:
- R134a
- R404A
- R407C
- R410A
- R507A
- R1234yf
- R1234ze(E)
- R448A
- R449A
- R452A
- R454A
Its typical kinematic viscosity is approximately 32.3 mm²/s at 40°C, with a typical pour point of approximately −35°C.
These specifications are provided for technical reference. Actual suitability must be confirmed against the manufacturer’s application tables, compressor type, and operating conditions.
2. Sunice SL-68S
Sunice SL-68S is an ISO VG 68 synthetic POE refrigeration oil for applications requiring a higher viscosity grade than SL-32S.
The manufacturer’s catalogue identifies selected applications involving refrigerants including:
- R134a
- R404A
- R407C
- R410A
- R507A
- R448A
- R449A
- R452A
- R454A
- R1234yf
- R1234ze(E)
- R1233zd(E)
- R744 (COâ‚‚)
SL-68S has a typical kinematic viscosity of approximately 66.6 mm²/s at 40°C and a typical pour point of approximately −40°C.
The correct application depends on factors such as refrigerant, evaporation temperature, compressor design, and the equipment manufacturer’s requirements.
3. Sunice SL-170T
Sunice SL-170T is a higher-viscosity synthetic POE refrigeration oil in the SL range, with an ISO viscosity grade of 170.
The manufacturer’s application tables list it for selected refrigeration systems using refrigerants such as R134a, R404A, R407C, R410A, R417A, R448A, R449A, R452A, R454A, and R507A, depending on operating conditions and compressor type.
The different viscosity grades within the SL series give refrigeration professionals options for matching the lubricant to the system’s technical requirements. SL-32S, SL-68S, and SL-170T should not be treated as interchangeable products.
Sunice 3GS, 4GS, and 5GS Refrigeration Oils
The Sunice range also includes 3GS, 4GS, and 5GS refrigeration oils for selected refrigeration and air-conditioning applications.
These products provide additional lubricant options for systems that require the corresponding oil specification. Before selecting one, check the refrigerant, compressor design, required viscosity, system configuration, and equipment manufacturer’s recommendations.
For businesses looking for Sunice refrigeration oil in Sri Lanka, the 3GS, 4GS, and 5GS products are additional options to discuss when identifying a suitable lubricant for a particular system.
Always verify the exact product specification and application suitability before use.
Sunice HYBRID Refrigeration Oil
Sunice HYBRID is an alternative refrigeration oil technology developed by Japan Sun Oil Company, Ltd.
According to the manufacturer, HYBRID oils combine premium naphthenic oils with high-quality polyol ester base stocks using patented technology. The range is designed to provide lubricity and chemical stability while offering a potential cost advantage compared with conventional synthetic refrigeration oils.
The manufacturer describes HYBRID as covering a range of applications traditionally associated with POE, PAG, and PVE oils. However, this does not mean that every HYBRID product can replace every oil type. Compatibility must be verified for each specific system.
Sunice HYBRID 32 and HYBRID 46
The HYBRID range includes:
- Sunice HYBRID 32
- Sunice HYBRID 46
These products are available in ISO viscosity grades 32 and 46, respectively, and are listed for selected refrigeration and air-conditioning applications.
The manufacturer’s catalogue identifies applications including:
- Stationary air-conditioning systems
- Automotive air-conditioning systems
- Freezers and display showcases
- Refrigerated vehicles
- Commercial refrigeration
- Cold-chain applications
The listed refrigerant applications include R32, R410A, R407C, R407H, R404A, R454B, R449A, R1234yf, R134a, and R744, subject to the relevant product and system requirements.
Before using HYBRID 32 or HYBRID 46, confirm the oil’s suitability for the compressor and refrigerant combination. Do not switch from an existing lubricant without checking compatibility and following the appropriate system preparation procedures.
Sunice Oils for Automotive Air Conditioning
Automotive air-conditioning systems have specific lubrication requirements. The correct oil depends on the refrigerant, compressor design, and whether the compressor is mechanically or electrically driven.
Japan Sun Oil Company provides dedicated automotive A/C lubricants, including Sunice AC46, P46, and PB100.
1. Sunice AC46
Sunice AC46 is designed for selected automotive air-conditioning systems using R134a and R1234yf refrigerants.
The manufacturer’s catalogue identifies applications involving:
- Conventional belt-driven compressors
- Electrically driven compressors
- Swash plate compressors
- Scroll compressors
AC46 is based on Japan Sun Oil Company’s patented technology and is designed to provide lubricity and chemical stability. Its suitability should be confirmed for the particular vehicle, compressor, and refrigerant before use.
This is especially important for modern vehicles with electrically driven A/C compressors, where the lubricant must meet the relevant compressor and electrical requirements.
2. Sunice P46
Sunice P46 is a PAG-type lubricant developed for selected automotive air-conditioning systems using belt-driven compressors.
The manufacturer’s catalogue identifies applications involving R134a and R1234yf refrigerants and suitable swash plate compressors.
PAG oils can absorb moisture from the surrounding air. Proper handling and storage are therefore important, and the product should be used only in applications approved by the manufacturer.
3. Sunice PB100
Sunice PB100 is another PAG-type automotive A/C oil intended for selected systems using R134a refrigerant.
The manufacturer’s catalogue lists it for suitable belt-driven swash plate compressors and certain vane-type compressors.
Like P46, PB100 is hygroscopic, so unnecessary exposure to ambient air should be minimized during handling and storage.
The manufacturer also states that P46 and PB100 are not retrofit oils for R12 vehicle A/C systems and are not recommended for electrically driven compressors used in electric or hybrid vehicles.
Important: AC46, P46, and PB100 are not interchangeable. Always verify the exact lubricant specification required by the vehicle or compressor manufacturer.
Applications of Sunice Refrigeration Oils
Sunice oils cover selected refrigeration and air-conditioning applications across commercial, industrial, and automotive environments. The appropriate product depends on the specific system and its technical requirements.
Commercial Refrigeration
Commercial refrigerators, freezers, supermarket display cases, and other cooling equipment depend on reliable compressor operation. A compatible lubricant helps support the performance and reliability of refrigeration equipment used in retail and hospitality environments.
Industrial Refrigeration
Industrial refrigeration systems may operate for extended periods under demanding conditions. Selecting the correct lubricant viscosity and oil technology is important for supporting compressor lubrication and reliable equipment operation.
Cold Storage and Cold-Chain Logistics
Cold storage facilities and refrigerated transportation rely on dependable temperature-control systems to preserve products during storage and distribution. Suitable compressor lubrication is one part of maintaining reliable refrigeration equipment.
Air Conditioning
Selected Sunice products are intended for stationary air-conditioning systems. The correct oil must match the refrigerant, compressor design, and operating specifications.
Automotive Air Conditioning
The Sunice automotive range includes dedicated options for selected conventional and electrically driven A/C compressor applications. Product selection must account for the vehicle’s refrigerant, compressor type, and manufacturer requirements.
How to Choose the Right Sunice Refrigeration Oil
Selecting the correct compressor oil is an important technical decision. Using a product simply because it has a similar viscosity or belongs to the same brand is not sufficient.
Before choosing a Sunice oil, consider the following factors:
- Refrigerant type: Confirm the refrigerant used by the refrigeration or A/C system.
- Compressor manufacturer: Follow the oil specifications provided by the equipment manufacturer.
- Compressor type: Determine whether the system uses a reciprocating, scroll, swash plate, vane, or other compressor design.
- Viscosity grade: Select the grade specified for the application.
- Operating conditions: Consider the relevant operating and evaporation temperatures.
- Existing oil technology: Check compatibility before changing from another oil type or brand.
- Warranty requirements: Follow the equipment builder’s recommendations for equipment under warranty.
The Sunice product catalogue provides application information based on refrigerants, operating temperatures, and compressor types. Use the manufacturer’s selection tables and technical guidance to confirm the correct product.
When changing oil technology or brand, follow the manufacturer’s prescribed procedures. The Sunice catalogue advises flushing the system when changing refrigeration oil technology or brand to help minimize contamination from the previous oil.
If you are unsure which product is suitable, consult a qualified refrigeration technician or seek technical guidance before proceeding.
Sunice Refrigeration Oil in Sri Lanka
Sri Lanka’s refrigeration and air-conditioning sector supports industries such as food processing, fisheries, cold storage, supermarkets, hospitality, manufacturing, logistics, and automotive services.
These businesses depend on reliable cooling equipment to support daily operations. Selecting an appropriate compressor lubricant is an important part of maintaining equipment performance and reliability.
Through C. W. Mackie PLC, customers in Sri Lanka can enquire about Sunice refrigeration oil solutions for suitable refrigeration, air-conditioning, and automotive applications.
The range covered in this guide includes:
- Sunice SL-32S
- Sunice SL-68S
- Sunice SL-170T
- Sunice 3GS, 4GS, and 5GS
- Sunice HYBRID 32 and HYBRID 46
- Sunice AC46
- Sunice P46
- Sunice PB100
Product availability and application suitability should be confirmed directly. When making an enquiry, provide details of your equipment, refrigerant, compressor model, and required oil specification to help identify the appropriate option.
Why Contact C. W. Mackie PLC?
C. W. Mackie PLC brings more than 120 years of business experience to Sri Lanka’s industrial and commercial sectors.
For customers exploring refrigeration lubrication solutions, the objective is to identify products that suit their equipment and operational requirements.
Customers can enquire about:
- Sunice refrigeration oil products
- Synthetic POE refrigeration oils
- Sunice HYBRID refrigeration oils
- Automotive A/C lubricants
- Product specifications and application suitability
- Guidance on identifying the appropriate oil for a specific system
For technical applications, final product selection should always be based on the manufacturer’s specifications and the requirements of the equipment.
Conclusion
Choosing the right refrigeration compressor oil is essential for supporting dependable refrigeration and air-conditioning system performance.
The Sunice range from Japan Sun Oil Company, Ltd. includes synthetic POE refrigeration oils such as SL-32S, SL-68S, and SL-170T; additional options including 3GS, 4GS, and 5GS; HYBRID 32 and HYBRID 46; and dedicated automotive A/C oils such as AC46, P46, and PB100.
Each product has specific application requirements. Checking refrigerant compatibility, compressor type, viscosity grade, and manufacturer recommendations helps ensure the selected lubricant is appropriate for the system.
Looking for Sunice refrigeration oil in Sri Lanka? Contact C. W. Mackie PLC through MackieMarket.lk to enquire about suitable products for your refrigeration, air-conditioning, or automotive A/C requirements.
Frequently Asked Questions
Where can I enquire about Sunice refrigeration oil in Sri Lanka?
You can contact C. W. Mackie PLC through MackieMarket.lk to enquire about Sunice refrigeration oil products, specifications, and availability.
What is the difference between Sunice SL-32S and SL-68S?
SL-32S is an ISO VG 32 synthetic POE refrigeration oil, while SL-68S is an ISO VG 68 synthetic POE oil. They have different viscosity grades and must be selected according to the compressor and system requirements.
What is Sunice HYBRID refrigeration oil?
Sunice HYBRID is a refrigeration oil technology developed using naphthenic oils and polyol ester base stocks. The range includes HYBRID 32 and HYBRID 46. Application suitability and compatibility must be confirmed for the specific system.
Can Sunice refrigeration oil be used in automotive air-conditioning systems?
Certain Sunice products, including AC46, P46, and PB100, are specifically intended for selected automotive A/C applications. The correct product depends on the refrigerant, compressor design, and vehicle manufacturer’s specifications.
Can I use the same refrigeration oil for every compressor?
No. Different compressors and refrigerants may require different lubricant technologies and viscosity grades. Always consult the compressor manufacturer’s documentation before selecting or changing oil.
Are Sunice SL-32S, SL-68S, and SL-170T interchangeable?
No. These products have different viscosity grades. The correct oil must be selected using the manufacturer’s application recommendations and the compressor’s technical requirements.