Jiangsu Sujing, a professional purification equipment manufacturer, required a safe and efficient refrigerant recovery solution for handling multiple refrigerants during equipment production, testing, and maintenance processes.

The customer mainly worked with:R290/R32/R1234ze/R410A

As flammable refrigerants become increasingly common in HVAC and refrigeration applications, the customer faced higher requirements for explosion-proof safety, refrigerant cleanliness, and operational stability. Conventional recovery equipment could not fully meet the safety and efficiency demands of continuous industrial operation.

To improve refrigerant recovery performance while ensuring safe handling of flammable refrigerants, Jiangsu Sujing selected the ChunMu CM-V400 Oil-free Explosion Proof Refrigerant Recovery Machine.

The CM-V400 Refrigerant Recovery Machine was specially designed for medium and large hydrocarbon refrigerant systems and industrial explosion-proof environments.

• 4HP high-power oil-free compressor
• Stainless steel oil-free refrigerant recovery compressor
• Vapor recovery rate: ≤50 kg/h
• Push/Pull liquid recovery rate: ≤1300 kg/h
• Suitable refrigerants: R290, R32, R1234ze, R410A
• Reversing valve design for vapor and liquid recovery
• Automatic shut-off at -0.04 MPa vacuum level
• EU CE and ATEX explosion-proof certification

The machine adopted a reversing valve design, allowing operators to switch between vapor recovery and push/pull liquid recovery without replacing pipelines, helping improve operational efficiency and simplify the recovery process.

The CM-V400 was designed and manufactured to meet industrial explosion-proof requirements, providing safer operation when handling flammable refrigerants such as R290 and R32.

The oil-free compressor design effectively prevented cross contamination between refrigerants, helping maintain refrigerant cleanliness during recovery operations.

With a vapor recovery rate of ≤50 kg/h and push/pull liquid recovery rate of ≤1300 kg/h, the machine significantly improved refrigerant recovery efficiency during daily operation.

The reversing valve design reduced the need for repeated pipeline replacement during vapor and liquid recovery, simplifying operation and reducing working time.

After installation and commissioning, the CM-V400 Oil-free Explosion Proof Refrigerant Recovery Machine has been operating stably at the customer’s facility.

According to Jiangsu Sujing, the machine delivers reliable recovery performance, stable operation, and improved working efficiency when handling multiple refrigerants. The customer was particularly satisfied with the explosion-proof safety performance, oil-free recovery design, and convenient operation process.

The customer expressed positive feedback regarding the overall reliability and operational stability of the CM-V400 series.