In the world of industrial refrigeration, HVAC systems, and commercial cooling, the performance and longevity of compressors depend heavily on the quality of the lubricating oil used. BITZER Refrigerant Oil represents the pinnacle of compressor lubrication technology, designed specifically to ensure maximum efficiency, reliability, and compatibility across a wide range of refrigeration applications. Engineered by BITZER — a global leader in compressor innovation — this oil is formulated to meet the strict demands of modern refrigerants and high-efficiency systems.

1. Product Overview

BITZER Refrigerant Oil is a premium-grade synthetic and mineral-based lubricant developed to provide optimal performance in piston, screw, and scroll compressors. Designed with precision chemical composition and advanced additive technology, it guarantees superior lubrication, excellent chemical stability, and minimal oil carryover under varying operating conditions.

The oil is compatible with both traditional refrigerants (R22, R404A, R407C) and new-generation low-GWP refrigerants (R32, R1234yf, R513A, and CO₂). BITZER’s portfolio includes multiple types such as BSE32, BSE55, B100, and B320SH, each optimized for different compressor models and temperature ranges.

2. Core Advantages

① Excellent Chemical and Thermal Stability
BITZER Refrigerant Oil resists oxidation and thermal degradation, even under high discharge temperatures. This ensures the system remains clean, preventing the formation of sludge or acid that could cause compressor damage.

② Outstanding Lubrication Performance
Engineered with a strong molecular structure, the oil provides exceptional film strength and anti-wear protection, reducing friction on critical moving parts such as bearings and rotors, thereby extending compressor lifespan.

③ Perfect Miscibility with Refrigerants
The oil’s molecular design ensures excellent miscibility and oil return characteristics with a wide variety of refrigerants. It prevents oil trapping in the system, maintaining stable compressor performance and improving energy efficiency.

④ Low Pour Point and Wide Operating Range
BITZER Refrigerant Oil maintains fluidity in extremely low temperatures, making it ideal for deep-freezing systems while still providing consistent viscosity under high-temperature operations.

⑤ Environmentally Friendly and Low Moisture Content
Produced using advanced refining and filtration processes, the oil has extremely low moisture and impurity levels, ensuring corrosion-free operation and compatibility with eco-friendly refrigerants.

3. Applications

BITZER Refrigerant Oil is widely used across industries that rely on precise temperature control and efficient cooling performance, including:

Commercial refrigeration: supermarkets, cold rooms, and refrigerated display cabinets

Industrial cooling systems: food processing plants, pharmaceutical manufacturing, and chemical storage

HVAC systems: large-scale air conditioning, chillers, and variable refrigerant flow systems

Marine and transport refrigeration: container cooling and transport systems

Cryogenic applications: ultra-low temperature storage and freezing systems

4. Technical Excellence and Innovation

Each variant of BITZER Refrigerant Oil is carefully engineered to complement BITZER’s compressors. The POE (polyolester) synthetic oils deliver high chemical stability and are optimized for HFC and HFO refrigerants, while mineral and alkylbenzene oils serve legacy systems using CFC or HCFC refrigerants.

The innovative additive packages improve oxidation resistance, foaming control, and lubricity, even under heavy load conditions. This ensures smooth compressor operation, reduced vibration, and minimal maintenance needs.

5. Case Study — Industrial Cold Storage Facility Upgrade

A large cold storage company in Europe upgraded its refrigeration system to use BITZER screw compressors paired with BSE32 Refrigerant Oil. The results were remarkable:

15% improvement in compressor efficiency

Reduced wear and maintenance frequency by 30%

Longer oil replacement cycle, lowering operating costs

Stable performance at -40°C evaporating temperature

This case highlights how BITZER oil enhances performance, reliability, and total cost efficiency in demanding refrigeration operations.

6. Solving Customer Pain Points

BITZER Refrigerant Oil addresses common issues faced by refrigeration operators:

Problem: Oil degradation and acid formation leading to compressor failures.
Solution: High chemical purity and oxidation resistance prevent breakdown and acid buildup.

Problem: Poor oil return in large systems causing lubrication failure.
Solution: Excellent miscibility ensures consistent oil circulation and compressor protection.

Problem: High maintenance and short oil life in extreme temperature conditions.
Solution: Thermal stability and extended service intervals reduce downtime and costs.

By solving these challenges, BITZER Refrigerant Oil ensures system reliability, energy efficiency, and long-term protection.

7. Commitment to Quality and Sustainability

BITZER adheres to the highest international standards (ISO 6743-3A, DIN 51503) to ensure every batch of oil meets rigorous quality requirements. The formulation supports low-GWP and HFO refrigerants, helping customers comply with global environmental regulations while achieving energy savings.

Additionally, BITZER promotes sustainability through recyclable packaging and advanced production methods that minimize environmental impact.

8. Conclusion

BITZER Refrigerant Oil is not just a lubricant—it’s an integral part of your refrigeration system’s reliability and efficiency. With its superior chemical stability, anti-wear properties, and refrigerant compatibility, it protects compressors against wear and degradation, extending their operational lifespan and optimizing performance.

For industries that depend on continuous cooling and stable performance, such as food storage, HVAC, and pharmaceuticals, BITZER Refrigerant Oil is the ultimate choice for ensuring energy-efficient, reliable, and environmentally responsible operation.

BITZER — powering performance through precision lubrication.