About Product

Highlight

Fully Automatic: Simplifies AC servicing with one-touch recovery and charging
Dual Refrigerant Compatibility: Works with R134a and 1234yf for versatile use
High-Precision Scales: Accurate weighing of 10g for precise measurements
Deep Recovery Mode: Enhances efficiency up to 95%, saving time and resources
Intelligent Leak Detection: Uses high-sensitivity sensors for accurate leak identification

 

About Us

Guangzhou Karjoys Auto Equipment Co., Ltd. is a leading manufacturer of auto service equipment, specializing in tire inflation systems and repair tools. With 20000 square meters of production space and 800+ employees, the company offers OEM/ODM products and ensures 100% quality testing. It holds CE certification and provides one-year warranties, emphasizing quality, innovation, and customer-centric service. Customer service is a big advantage that we possess, One-stop Professional car Repair Equipment Solution. We understand equipment is not a product that you just sell and forget, instead it requires constant maintenance and serice, Only the service can make the business succeed in the long run, not the cheap nice, not the fancy look. When there is a technical question, we will answer it in a timely manner with detailed information, we not only use words to explain, but we also like to provide photos and videos to help you understand better, so you can provide support and solutions to end user. Thanks to our experience and know-how, we have FAQ's & Trouble shooting with the most relevant problems and best solutions. We have technical documents, such  as user manuals, service videos installation instructions spare parts exploded views

                         

FAQs

What is your terms of packing

Generally, we pack our goods in neutral cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters

What is your terms of payment

T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance

What is your terms of delivery

EXW, FOB, CFR, CIF, DDU

How about your delivery time

Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order

What is your sample policy

We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost

Do you test all your goods before delivery

Yes, we have 100% test before delivery

How do you make our business long-term and good relationship

1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from

Karjoys presents the Heavy Duty Full Auto Dual Gas Refrigerant Machine for All Vehicles, a next-generation R134a R1234yf AC machine engineered for comprehensive, reliable, and efficient vehicle air conditioning service. As vehicle fleets diversify and newer vehicles adopt R1234yf while legacy models remain on R134a, technicians need a single, robust solution that simplifies maintenance workflows without sacrificing precision. The Karjoys integrated vehicle A/C service system delivers that capability with a heavy-duty design, advanced automation, and professional-grade components to support all makes and models in modern automotive shops

Product Overview and Key Features

The Karjoys Heavy Duty Full Auto Dual Gas Refrigerant Machine is a purpose-built dual-gas refrigerant system that handles both R134a and R1234yf refrigerants. This heavy-duty auto AC maintenance platform integrates recovery, recycling, vacuum, charging, and leak detection into a single, automated unit designed for high-throughput environments. The integrated vehicle A/C service approach reduces downtime and minimizes the need for multiple machines, streamlining shop inventory and technician training

Core features include:

- Dual-gas capability: Fully compatible with R134a and R1234yf refrigerants, enabling service for a broad range of vehicles

- Full-auto operation: Automated cycles for recovery, recycling, oil management, vacuum, and precise charge control reduce operator error and improve repeatability

- High-capacity construction: Heavy-duty pumps, oil separators, and robust compressors engineered for continuous operation in busy shops

- Precision metering: Electronic mass-flow and pressure-sensing systems ensure accurate refrigerant and oil charging tailored to manufacturer specifications

- Intuitive interface: A user-friendly display and built-in service guides support rapid setup and error-free operation for technicians of all skill levels

- Safety and compliance: Refrigerant-specific safety protocols, non-return valves, and filtration ensure safe handling and regulatory compliance for R134a R1234yf AC machine operations

- Modular connectivity: Support for PC diagnostics, firmware updates, and data logging for service records and quality control

Technical Advantages and Innovation

Karjoys engineered this R134a R1234yf AC machine with technology choices focused on longevity, accuracy, and operational efficiency. The dual-gas refrigerant system incorporates refrigerant-specific circuits that prevent cross-contamination while enabling automated switching between gases. Internal contaminant filtration and oil separation technologies extend the service life of the machine and protect vehicle A/C systems from degradation caused by moisture or debris

The heavy-duty auto AC maintenance architecture uses industrial-grade vacuum pumps and high-flow recovery compressors to shorten cycle times, improving throughput in commercial garages and dealership service centers. Precision electronic control of mass-flow metering enables repeatable, manufacturer-spec charging. Integrated sensors monitor pressure, temperature, and mass to perform dynamic adjustments during charging, making the unit suitable for both low-volume independent shops and high-volume fleet operations

Full automation reduces human intervention and the potential for error. The machine’s software guides operators through refrigerant selection and automatically executes recovery, recycle, vacuum, and charge sequences. The integrated vehicle A/C service logic calculates required refrigerant and lubricant amounts and documents service parameters. This automation is especially valuable when switching between R134a R1234yf AC machine modes, providing consistent outcomes across diverse vehicle fleets

Applications and Use Cases

The Karjoys dual-gas refrigerant system addresses a broad spectrum of service scenarios:

- Independent repair shops that need to service both older vehicles charged with R134a and newer models using R1234yf, eliminating the need for separate machines

- Dealerships and franchised service centers with mixed fleets, where reliable, repeatable A/C maintenance is essential for warranty and customer satisfaction

- Fleet maintenance facilities and rental agencies that require high-throughput, heavy-duty auto AC maintenance to minimize vehicle downtime

- Mobile service providers who benefit from an integrated vehicle A/C service unit that combines multiple functions into a single, transportable platform

- Vocational training centers requiring a professional-grade R134a R1234yf AC machine to teach modern refrigerant handling, diagnostics, and safe service procedures

Operational Workflow and Efficiency Gains

Technicians begin by selecting the refrigerant type; the machine’s dual-gas refrigerant system isolates gas-specific components and runs an automated self-check. During recovery, high-capacity compressors capture refrigerant quickly. Refrigerant is filtered and distilled through an internal recycling system to meet purity standards before being returned to storage cylinders or used for charging. The system automatically measures and dispenses refrigerant and lubricants per vehicle specifications, minimizing waste and ensuring optimum cooling performance

Integrated vacuuming removes moisture and non-condensables quickly, while leak detection aids identify system faults prior to charging. By consolidating recovery, recycle, vacuum, charge, and diagnostic logging into one unit, the Karjoys Heavy Duty Full Auto Dual Gas Refrigerant Machine cuts service time, reduces inventory complexity, and lowers long-term service costs for shops that handle both R134a and R1234yf vehicles

Reliability and Serviceability

Karjoys designed the machine for years of heavy service. Rugged chassis, corrosion-resistant components, and hardened fittings withstand daily use in commercial environments. Serviceable filters, easy-access pumps, and modular electronic units simplify maintenance and repairs, reducing downtime. The unit supports firmware updates and diagnostic downloads, allowing shops to stay current with refrigerant regulation changes and manufacturer procedures

Environmental and Regulatory Considerations

Handling refrigerants responsibly is vital. The Karjoys dual-gas refrigerant system includes features to minimize emissions during service, such as sealed recovery circuits and automatic leak prevention routines. Accurate recovery and recycling meet industry best practices and help technicians comply with environmental regulations for both R134a and R1234yf handling. Precise charging reduces overfill and under fill risks, optimizing vehicle A/C efficiency and lowering greenhouse gas impact through proper refrigerant management

Why Choose Karjoys Heavy Duty Full Auto Dual Gas Refrigerant Machine

Karjoys delivers an industry-grade R134a R1234yf AC machine that combines the convenience of an integrated vehicle A/C service platform with the durability required for heavy-duty operations. The dual-gas refrigerant system eliminates redundancy and simplifies shop workflows. Full-auto operation and precision controls enhance service quality while reducing operator dependency. Whether servicing classic fleet vehicles or the latest models using R1234yf, this heavy-duty auto AC maintenance solution offers unmatched versatility and performance

For workshops and fleets facing the coexistence of R134a and R1234yf vehicles, the Karjoys Heavy Duty Full Auto Dual Gas Refrigerant Machine is a strategic investment. As an integrated vehicle A/C service solution, it streamlines maintenance, enhances reliability, and supports regulatory compliance through precise recovery, recycling, vacuuming, and charging. Designed to withstand demanding service cycles and engineered for accuracy, the Karjoys dual-gas refrigerant system empowers technicians to deliver faster, safer, and more consistent A/C maintenance across all vehicles