This professional refrigerant handling machine is specifically designed and certified for R134a, featuring automatic high-pressure protection that regulates or shuts down during operation. It delivers high-efficiency performance with fast recovery (350g/min gas, 500g/min liquid), rapid 1500g/min recharge, and powerful 170L/min vacuuming. The enclosed dual-pipe system prevents leaks while optimizing flow, and programmable vacuuming with auto-stop reduces manual monitoring. With one-touch automatic mode, it seamlessly completes recovery, evacuation, and recharging in a continuous workflow, significantly enhancing efficiency and reducing labor requirements.