What type of refrigeration oil should I use for my screw compressor?

Screw compressors typically require POE (Polyol Ester) oils for HFC refrigerants like R134a and R407C, or mineral oils for HCFC systems like R22. The viscosity grade (usually ISO VG 32-68) depends on the compressor manufacturer's specifications. Brands like Bitzer recommend BSE series POE oils, while FUSHENG systems often use mineral oil formulations.

What is the difference between POE and mineral refrigeration oil?

POE (Polyol Ester) oils are synthetic lubricants designed for HFC refrigerants (R134a, R404A, R407C, R410A) and are hygroscopic, requiring careful moisture control. Mineral oils (MO) are petroleum-based, used with CFC and HCFC refrigerants (R22, R502), and are less expensive but incompatible with modern HFC systems. POE oils offer better thermal stability and miscibility with newer refrigerants.

How do I select the right refrigeration oil for a centrifugal chiller?

For centrifugal chillers, select oil based on the OEM specification (e.g., Trane OIL00037, York PureOil S), the refrigerant type (R123 low-pressure or R134a medium-pressure), and the required viscosity grade. Most modern centrifugal chillers use POE oils with ISO VG 32-68. Always verify compatibility with the chiller manufacturer's technical bulletin and ensure the oil meets the required pour point for your operating conditions.

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Four major product series

Qishanr Refrigeration Lubricants QSL-170H

Qishanr is the world’s leading supplier of synthetic lubricants to the refrigeration and air conditioning industry. The Qishanr QSL polyol ester (POE) lubricants are designed to meet all your needs.

Qishanr Refrigeration Lubricants QSL-100H

Qishanr Refrigeration Lubricants QSL-68H

Qishanr Refrigeration Lubricants QSL-220H

Qishanr Refrigeration Lubricants QSL-46H

Pelincir Penyejukan Qishanr QSL-32H

Qishanr ialah pembekal pelincir sintetik terkemuka dunia kepada industri penyejukan dan penghawa dingin. Pelincir Qishanr QSL poliol ester (POE) direka untuk memenuhi semua keperluan anda.

QISHANR MINERAL REFRIGERATION OILS 3GS

Qishanr GS oils can be applied in commercial as well as in residential refrigeration and air conditioning systems.Recommended by most major equipment manufacturers and refined from specially selected naphthenic base crude oils.

QISHANR MINERAL REFRIGERATION OILS 4GS

Do you know the importance of Quality Refrigeration Lubricants

Qishanr QSL ® lubricants are designed for standard factory fill of air conditioning and industrial refrigeration equipment, as well as for OEM retrofitting operations. Our laboratory studies and OEM compressor tests have afforded a product line specifically designed to meet key system needs. lubricants are not hazardous under 29 CFR 1910.1200. They provide improved properties over conventional mineral oils in all aspects, including viscosity index, flash and fire points, and pour point.

Synthetic Polyol Ester Lubricants (POE)

Mineral Refrigeration Oil

Qishanr Lubrictans

The most comprehensive range of refrigeration oil on the market

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Covering consumers from 108+ countries and regions.

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OEM Approved by 12 brands

150,000+

Produce more than150,000 tons yearly

The Qishanr QSL range are synthetic polyol esters (POE) lubricants formulated specifically for use in refrigeration and air-conditioning compressors using HFC refrigerants. These products provide effective wear protection for bearing surfaces, increased system life and improved efficiency, and are suitable for both initial fill and service fill. The combination of low temperature characteristics and unparalleled chemical and thermal stability enable the use of Qishanr QSL products over wide operating temperature ranges.

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The concept of sustainable development requires the coordinated progress of the economic, social, and environmental aspects to achieve balanced development, so as to meet the needs of both the current and future generations and ensure the long-term stability and prosperity of human society.

Our Strengths

Refrigeration Lubricants-Consider it solved.

Worldwide Coverage+

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OEM for top brands in the HVACR industry. Quality Guranteed.

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Consultancy service for refrigeration oil selection and application.

Comprehensive Lubricants Solution

Compatible with all HFC refrigerants (e.g. R-125, R-134a, R-143a, R-152a, R-404A, R-407C, R-410A and R-507A), Qishanr QSL fluids exhibit exceptional miscibility even at extremely low temperatures.

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FAQ-Refrigeration Lubricants Oil

Help you learn more and faster

What series of refrigeration oils can you supply?

POE, PAG, PVE, PAO, AB, MO, Environmental Refrigeration Oil.

What certifications do you have?

CE, CO.

Do you support OEM services?

Yes. Custom packaging and material selection are available.

Can I replace my current oil with yours?

Yes. Please provide your original unit model, and we will recommend the equivalent type after technical analysis.

Why choose to cooperate with you?

Full product range for mid‑to‑high end compressors, performance matches international top brands.
Stable quality with independent R&D synthetic esters; complete export certificates.
Strong technical support, OEM/ODM, logistics and export compliance assistance.
Stable supply and long‑term price advantages.

Can I be an agent/distributor of your refrigeration oils?

Yes. We are looking for global partners with market protection support. Welcome to be our agent if your region is available.

About Us: Refrigeration Lubricants Solutions

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Contact Us: RM202, B2 Building, No.2 Jiaoxin Songbaili Gaopu Industrial Zone Road, Baiyun District, Guangzhou-510430, China; info@qishanr.com; +86-186 6560 5628

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Qishanr Lubricants