On the road and servicing R1234yf A/C systems? The Robinair AC1234-4SL Mobile Service AC Machine is built specifically for technicians who need power, accuracy, and durability wherever the job takes them. Designed for mobile A/C service, this fully automatic R1234yf recovery, recycle, and recharge machine keeps your workflow fast and professional—without sacrificing precision.

The standout feature? A mechanical scale lock that eliminates the need to recalibrate your refrigerant scale after long-distance transport. Simply secure it from outside the machine, and your internal tank stays safely locked in place during transit—protecting against damage and ensuring accurate refrigerant measurement every time. If you want a dependable, mobile-ready R1234yf AC machine that saves time, reduces headaches, and keeps your service calls profitable, the AC1234-4SL is ready to roll.

• Dimensions: 107 cm x 56 cm x 80 cm
• Display: 5 × 9 cm (4.3-in. diag) graphical LCD
• Filter: 150 kg (330 lb)
• Humidity: 10-50°C (50-122°F), 86% RH non-condensing
• Gauges: Ø 100 mm (3.9 in.)
• Maximum Pressure: 31 bar (450 PSI)
• Noise: <70 dB(A)
• Nominal Voltage: 115V, 60 Hz
• Oil Drain Bottle Capacity: 355 ml (12 oz)
• Operating Temperature: 10°C to 50°C (50°F to 122°F)
• Power Consumption: 1380 VA
• Vacuum Pump: 1.5 CFM (42 L/m) @ 60 Hz
• Service Hoses: 12' (3.65m) SAE J2886
• Internal cylinder: 30 lb DOT (13.6 kg); 21 lb (9.5 kg) capacity
• Weight: 82 kg (176 lb)