Explosion Proof Refrigerant Recovery Machine R290 R32 Flammable Gas 1.2kg per minute Rate

R290 and R32 are efficient refrigerants, but they are also flammable, so a standard recovery unit is not the right tool for them. This recovery machine is built around an explosion proof motor, a sealed spark free electrical enclosure and static grounding connections, so recovery work on A3 and A2L systems can be carried out inside the workshop without adding a temporary hazardous area.

The unit recovers liquid at up to 1.2 kg per minute and vapour at about 0.35 kg per minute through a two stage spark free vacuum pump that reaches 30 microns. Recovered refrigerant is pushed into a 12.5 kg internal cylinder with a level indicator, and weight, pressure and vacuum are shown on a digital display so the technician knows exactly how much has been taken out of the system and when the system is empty.

The motor is an Ex d IIB T4 explosion proof type and the electrical compartment is sealed and spark free. In flammable refrigerant work the ignition source is not usually the refrigerant itself but an arc inside a switch or a hot motor surface, so the protection is concentrated where the energy is: the motor, the control box and the wiring entry points.

Flowing refrigerant generates static charge, and a hose that cannot dissipate it becomes the ignition risk. The machine has a dedicated grounding terminal and is supplied with anti static recovery hoses and self sealing couplers, so the circuit is bonded from the system being recovered through the machine to the building earth. The grounding point is a deliberate, visible part of the design rather than an afterthought.

The 7.2 CFM two stage pump pulls the system down to 30 microns while the recovery circuit pushes liquid refrigerant out of the system in parallel with vapour recovery. The push pull arrangement is what allows the 1.2 kg per minute liquid rate on larger A2L and A3 charges without asking the pump to handle liquid directly.

Recovery stops automatically at the preset vacuum, and over pressure, thermal cut off and cylinder fill limits work as the second and third layer. On flammable refrigerants this matters because the technician's attention is on the system and the grounding, not on a gauge needle.

• Explosion proof motor and sealed spark free electrical enclosure
• Designed for A3 and A2L refrigerants including R290 and R32
• Recovery rate up to 1.2 kg per minute in liquid mode
• Static grounding terminal and anti static recovery hoses
• Automatic cut off at preset vacuum with over pressure protection

The machine is used wherever A3 or A2L refrigerant has to be taken out of a system safely, whether for production, service or decommissioning:

• R290 monoblock heat pump production and service
• R32 residential air conditioner installation and repair
• Flammable refrigerant workshop recovery stations
• Laboratory and test bench refrigerant handling
• R290 commercial refrigeration cabinets and condensing units
• Decommissioning and retrofitting of R32 systems in buildings
• Training centres where students handle flammable refrigerant under supervision

Equipment for flammable refrigerant is judged on its safety file as much as its recovery rate, so the documents and the support behind the machine are part of the product.

Guangzhou HongCe Equipment Co., Ltd. has been designing and building test and production equipment in Guangzhou, China since 2003. Roughly half of our annual output is exported, and the machines are used by third-party laboratories, appliance and HVAC factories, and inspection bodies that work to IEC, UL, GB and EN standards. Our slogan states the position we have kept for more than twenty years: industry leading test equipment, advanced online systems and solutions, anywhere in the world.

The company is ISO 9001:2015 certified, and machines supplied to the EU market carry CE marking. Mechanical fabrication, control cabinet assembly, PLC and HMI programming, refrigerant circuit assembly and final calibration are all done in our own workshop, so a station can be engineered around a customer's production sequence instead of being adapted from a catalogue item. Our engineers keep the refrigerant, pressure and vacuum know-how in-house, which is why questions about charging recipes, leak limits or flammable refrigerant handling are answered by the people who built the machine.

Flammable refrigerant projects are quoted with the grounding, hose and documentation requirements written into the offer, because those are the parts that a safety audit will ask about later.

Customers comparing this machine usually also look at the following stations from our refrigerant filling equipment range:

• ATEX Explosion Proof Refrigerant Charging Machine for R32 and R290
• 3-in-1 Refrigerant Recovery Charging Station with Vacuum Pull-Down
• Refrigerant Filling Equipment with Pipeline Evacuation and Residual Recovery
• Automatic Refrigerant Filling Machine with 2000 g Scale and 0.1 g Resolution

Send us the refrigerant, the typical charge per system, the number of systems recovered per day and the zone classification of your workshop, and our engineers will confirm the machine configuration, the documentation package and the delivery time. The rest of our refrigerant filling equipment range is listed on the products page, and you can contact our sales engineers directly for flammable refrigerant projects.