High-capacity production line system featuring a four-station automatic refrigerant charging machine

HongCe Four Station Automatic Refrigerant Charging Machine is a rotary turntable production system that performs vacuum evacuation and quantitative refrigerant charging on four stations in a continuous cycle. Designed for high-throughput air conditioner, dehumidifier, and refrigeration component production lines, the machine achieves 80-120 pcs/h with PLC control, barcode identification, and MES data traceability.

As refrigeration production lines accelerate, single-station charging machines become a bottleneck. The solution is to parallelize the process: while one product is being charged, others are being evacuated, weighed, or transferred.

The HongCe Four Station Rotary Turntable Charging Machine implements this parallel architecture. Products index through four stations where evacuation and charging operations are distributed across the cycle. Each station is equipped with its own vacuum and charging capability, while a central PLC coordinates the sequence, reads product barcodes, and records charge data. The result is a compact, high-throughput charging cell that integrates directly into automated production lines.

• Four Station Rotary Design: Parallel processing across four stations with continuous indexing for high throughput.
• High Production Output: 80-120 pcs/h depending on product, charge quantity, and evacuation time.
• Precision Charging Per Station: Charging accuracy of ±0.5g within 100g and ±0.5% above 100g, range 10-500g per station.
• Integrated Vacuum Evacuation: Vacuum capability of 4 L/s per station with equipment vacuum level of <2 Pa.
• Barcode Traceability: Product barcode scanning links each charge record to the individual unit.
• Full Production Integration: PLC + 12-inch touch screen, MES connectivity, 3-year data storage, RJ45/RS-485 and wireless interfaces.

• ISO 5149 - Refrigerating systems and heat pumps: safety and environmental requirements
• ISO 817:2024 - Refrigerants: designation and safety classification
• IEC 60204-1 - Safety of machinery: electrical equipment of machines
• GB/T 5226.1 - Electrical safety of machinery

• Parallel Process Architecture: Evacuation and charging operations overlap across stations, hiding process time and raising line throughput.
• Turntable Indexing Control: Servo-driven indexing with position feedback ensures accurate station alignment and repeatable operation.
• Per-Station Process Control: Each station independently monitors vacuum level, charge weight, and pressure, with reject marking for out-of-spec units.
• Traceability Integration: Barcode-linked charge records and MES connectivity make the machine a data node in the production management system.

Guangzhou HongCe Equipment Co., Ltd. has been engaged in the development and manufacture of testing equipment and production-line systems since 2003, covering vacuum technology, leak testing, automatic control and customized production-line solutions. HongCe equipment is developed with reference to GB, IEC, EN, UL, VDE, BS, AS and ISO requirements.