Case Study: High-Precision Refrigerant Charging for China Jihua Laboratory

China Jihua Laboratory is a leading national research institute focusing on advanced manufacturing and energy technology, with extensive research on HVAC and refrigeration systems. As part of their ongoing R&D projects, the lab required a high-performance refrigerant charging solution to support testing with multiple common refrigerants: R134a, R22, R513A, R404A, and R410A.

Their previous charging equipment struggled with inconsistent accuracy across different refrigerants, slow cycle times, and limited flexibility for experimental setups. Manual adjustments between refrigerant types introduced errors and delayed testing workflows, while low precision made it difficult to maintain consistent conditions for their research. The lab needed a reliable, multi-refrigerant charging machine that could deliver high accuracy, fast operation, and seamless adaptability to their diverse testing requirements.

Delivered Solution & Key Specifications

The lab selected the Chunmu CM8600(S) High Speed Refrigerant Charging Machine, configured to meet their multi-refrigerant research needs:

The CM8600(S)’s versatile design allowed seamless switching between different refrigerants, eliminating the need for separate equipment for each type. Its high-speed charging capability and precision control perfectly aligned with the lab’s demand for efficient, repeatable test conditions.

Solving the Customer’s Key Pain Points

1. Multi-Refrigerant Compatibility & Workflow Efficiency

   With support for all five required refrigerants in a single unit, the CM8600(S) eliminated the need for manual equipment changes or calibration between tests. The lab can now quickly switch between R134a, R22, R513A, R404A, and R410A setups, significantly streamlining their experimental workflows and reducing downtime between tests.

2. Precision & Consistency for Research Reliability

   The machine’s high-accuracy charging (up to ±0.3% precision) ensures consistent refrigerant fill levels across all tests, even with varying fill amounts. This eliminates data variability caused by manual or low-precision charging, providing the lab with reliable, repeatable results critical for their research conclusions.

3. Flexibility for Diverse Experimental Scenarios

   With adjustable charging speeds (≥40g/s) and customizable parameters, the CM8600(S) adapts to different test setups, from small prototype systems to larger-scale refrigeration equipment. The lab can easily configure the machine to match specific test conditions, supporting their diverse research projects without compromising on performance.

Customer Feedback

After installation and commissioning, the CM8600(S) refrigerant charging machine has been fully integrated into the lab’s daily research operations. The equipment’s stable performance, user-friendly interface, and seamless multi-refrigerant support have exceeded expectations.

The lab’s engineering team reports: “The CM8600(S) has simplified our refrigerant testing workflows significantly. We can now run tests with all our target refrigerants efficiently, with the precision and consistency we need for our research. The machine’s reliability and ease of use have made it an indispensable part of our laboratory setup, and we are very satisfied with the performance.”

This successful deployment solidifies Chunmu’s position as a trusted partner for high-precision refrigerant charging solutions in research and advanced manufacturing environments.