Explosion Proof Refrigerant Charging Machine R32 R290 Flammable Refrigerant ATEX

Explosion Proof Refrigerant Charging Machine R32 R290 Flammable Refrigerant ATEX Certified Production Equipment

Product Overview

HongCe Explosion Proof Refrigerant Charging Machine is a production-grade filling system designed for flammable refrigerants such as R32, R290, R600a and R1234yf. The machine combines vacuum evacuation and quantitative refrigerant charging with an explosion-proof electrical design, refrigerant gas detection, and automatic safety shutdown, making it suitable for heat pump, air conditioner, and refrigeration production lines using low-GWP flammable refrigerants.

Product Introduction

The global transition to low-GWP refrigerants has brought flammable A2L and A3 refrigerants such as R32, R290 and R600a into mainstream production. Charging these refrigerants requires equipment that addresses a fundamentally different risk profile: the refrigerant itself can form a flammable mixture if released.

The HongCe Explosion Proof Refrigerant Charging Machine is engineered around this requirement. All electrical components are housed in explosion-proof enclosures, refrigerant gas sensors monitor the working area, and the control system automatically halts charging in the event of a detected leak. Vacuum evacuation and quantitative charging remain fully automatic, so production teams gain flammable-refrigerant capability without sacrificing process control.

Main Features

• Explosion-Proof Design: Ex d IIB T4 rated electrical enclosures and ATEX/IECEx optional certification for flammable refrigerant environments.
• Refrigerant Gas Detection: Integrated leak sensors with automatic charging shutdown and audible/visual alarm.
• Precision Quantitative Charging: Charging accuracy of ±1g within 100g and ±0.5% above 100g, with single charge range of 10-500g.
• Integrated Vacuum Evacuation: 4 L/s vacuum capability and equipment vacuum level of <2 Pa before charging.
• Flammable Refrigerant Compatibility: Supports R32, R290, R600a, R1234yf and other A2L/A3 refrigerants with sealed charging circuit.
• Production Data Management: PLC control with 10-inch touch screen, MES connectivity, and 3-year production data storage.

International Reference Standards

• EN 60079 series - Explosive atmospheres (equipment protection)
• GB 3836 series - Explosive atmospheres (Chinese equivalent)
• ISO 5149 - Refrigerating systems and heat pumps: safety and environmental requirements
• ISO 817:2024 - Refrigerants: designation and safety classification

Technical Specifications

Core Technology Behind the Equipment

• Explosion-Proof Architecture: All ignition-capable components are isolated in Ex d flameproof enclosures, eliminating ignition sources in the charging zone.
• Leak-Responsive Safety: Gas detection interlocks stop refrigerant flow and charging immediately when a leak is detected.
• Sealed Charging Circuit: Minimal joint count and high-integrity fittings reduce the probability of refrigerant release during operation.
• Vacuum + Charge Integration: Evacuation and charging are performed in one automated sequence, consistent with flammable-refrigerant process requirements.

Detail shots

FAQ

Why is explosion-proof design needed for R32 and R290 charging?
R32 and R290 are classified as flammable refrigerants (A2L and A3). If released and ignited, they can create a fire or explosion hazard, so charging equipment must eliminate ignition sources.

Which refrigerants can this machine charge?
R32, R290, R600a, R1234yf and other flammable refrigerants, with configuration adapted to the specific refrigerant and charging range.

Can the machine also handle non-flammable refrigerants?
Yes. The machine can be configured for mixed production lines handling both flammable and non-flammable refrigerants, with refrigerant-specific charging programs.

About HongCe

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.

Contact the HongCe engineering team for flammable-refrigerant production line planning, explosion-proof configuration, and process integration support.