Robinair AC1234-4SL Mobile AC Recovery Machine - R1234yf Recovery Machine Overview

You've been hauling a standard recovery machine to job sites, recalibrating the scale every time you unload, and hoping the numbers are still right by the third stop. The Robinair AC1234-4SL fixes that problem at the source. This mobile ac recovery machine has an integrated mechanical scale lock that secures the internal cylinder to the weighing platform during transport. Lock it before you drive. Unlock it when you arrive. Your calibration stays accurate all day, every stop, no second-guessing.

Beyond the scale lock, this is a fully automatic r1234yf recovery machine that handles recover, recycle, and recharge in one hands-off cycle. The integrated refrigerant identifier (SAE J2927) samples what's in the vehicle before recovery starts, so you're never contaminating your tank with the wrong refrigerant. Recovery efficiency hits 98.5%, charge accuracy stays within +/- 0.5 oz, and the 12-foot extra-long hoses reach vehicle ports right from your service van without unloading the unit. Standard and high-voltage A/C systems are both covered.

Safety features are built around how you actually use this thing on the road. A safe startup prevents the machine from powering on while the scale lock is engaged. An indicator light reminds you to lock it down before you drive off. Tie-down points keep the unit stable in transit. This isn't a shop machine with a cart bolted on. It's purpose-built for mobile service from the ground up.

We carry Robinair replacement filters, pump oil, and maintenance kits so you're not scrambling for consumables between service calls. Need help figuring out if this fits your mobile setup? Call us.

Specifications

Performance

Refrigerant Type R-1234yf (Fully Automatic)
Recovery Efficiency 98.5%
Charge Accuracy +/- 0.5 oz
Vacuum Pump 1.5 CFM (42 L/m) at 60 Hz
Max Pressure 31 bar (450 PSI)
Noise Level Less than 70 dB(A)
Operating Temp Range 50°F to 122°F (10°C to 50°C)
Humidity 86% RH non-condensing
Filter Capacity 330 lb (150 kg)

Dimensions and Capacity

Dimensions (W x D x H) 107 cm x 56 cm x 80 cm
Weight 176 lb (82 kg)
Internal Cylinder 30 lb DOT (13.6 kg) - 21 lb (9.5 kg) usable capacity
Oil Drain Bottle 355 ml (12 oz)
Service Hoses 12 ft (3.65 m) with SAE J2886 couplers
Display 4.3 in. (5 x 9 cm) graphical LCD
Pressure Gauges 100 mm (3.9 in.)

Electrical and Certifications

Voltage 115 VAC, 60 Hz
Power Consumption 1,380 VA
SAE Compliance SAE J2843, SAE J2926, SAE J2927
Model Number AC1234-4SL
UPC 637335048256

What's Included

  • Robinair AC1234-4SL R-1234yf mobile service machine
  • 12 ft service hoses with SAE J2886 couplers
  • Integrated scale lock assembly with tie-down straps
  • 4.3 in. graphical LCD display
  • Integrated refrigerant identifier (SAE J2927)
  • Quick-change filter-drier cartridge
  • Oil drain bottle (355 ml)
  • Calibration check weight for scale verification
  • Tank fill hose adapter
  • User manual with mobile service procedures
  • MVAC equipment certification form
  • MACS 609 certification information sheet
  • Safety data sheets for vacuum pump oil and POE compressor oil

Optional Accessories: Replacement filter-drier cartridges (150 kg capacity), pump oil, compressor oil, UV dye injection kit, optional printer (model 30038) for service documentation.

Applications

Mobile A/C Service Technicians

The integrated scale lock and extra-long hoses make this the machine you leave in your van. Drive to the customer, unlock the scale, run the hoses to the vehicle, and service R-1234yf systems without recalibrating or unloading heavy equipment on-site.

Fleet Service Operations

When you're visiting customer sites to service fleet vehicles, accuracy can't drift between stops. The scale lock keeps your charge measurements consistent across every location, every vehicle, all day long.

Dealership Mobile Service Teams

Extend your dealership's A/C service reach beyond the shop. Send a mobile unit to satellite lots, customer homes, or overflow locations while maintaining the same warranty documentation standards and charge accuracy as your fixed bays.

Roadside and Emergency A/C Repair

Secure transport features, tie-down points, and safe startup protection mean this unit rides safely to emergency calls. The fully automatic cycle gets the customer back on the road with a proper recover, recycle, and recharge instead of a patch job.

Product Video

Shipping

We ship to any address in the Continental United States only. Local pickup is not available. Please allow 3-5 business days for shipping to be completed after payment is authorized. The AC1234-4SL weighs 176 lb, so a hand truck or assistance is recommended for moving to your service vehicle. Inspect all packages for shipping damage before accepting delivery and verify that the scale lock assembly, tie-down straps, 12-foot hoses, and all documentation are present.

If you have questions about your order, call us at (855) 498-2147.

Warranty

1-Year Limited Warranty: All Robinair products are warranted to be free from defects in material and workmanship under normal use and service for one year after the date of sale. Robinair's obligation under this warranty is to repair, replace, or provide credit for any defective product or parts returned to the factory within the warranty period and proven to be defective upon examination.

This warranty does not cover products subject to misuse, negligence, or accident. For full warranty terms and exclusions, refer to the product owner's manual included with your machine.

Documents

Click to open in a new tab.

PDF

Robinair AC1234-4SL Sales Sheet (PDF)

Product overview with features and mobile service specifications

PDF

RobinAir AC1234-4SL User Manual (PDF)

Complete operation, mobile setup, and maintenance instructions

PDF

RobinAir Warranty Information (PDF)

Complete warranty terms and conditions

PDF

RobinAir R-1234YF Equipment Comparison (PDF)

Comparison of R-1234yf mobile and stationary recovery equipment

Questions About the Robinair AC1234-4SL?

Our equipment specialists can help with mobile service setup, transport configuration, and R-1234yf product selection.

Call (855) 498-2147

Frequently Asked Questions

What does the scale lock do and why does it matter for mobile service?

The integrated mechanical scale lock secures the internal refrigerant cylinder to the weighing platform during transport. Without it, road vibration and movement can knock the scale out of calibration, leading to inaccurate charge measurements at your next stop. The AC1234-4SL's lock eliminates that recalibration step entirely. Lock it before you drive, unlock it when you arrive, and your charge accuracy stays within +/- 0.5 oz all day.

Can the AC1234-4SL service high-voltage hybrid and EV A/C systems?

Yes. The AC1234-4SL services both standard and high-voltage vehicle A/C systems that use R-1234yf refrigerant. This makes it a strong fit for mobile techs working on newer hybrids and EVs alongside conventional vehicles without needing separate equipment for each type.

How long are the service hoses and can I service vehicles without unloading the machine?

The AC1234-4SL comes with 12-foot (3.65 m) SAE J2886 service hoses. That's long enough to reach vehicle A/C ports directly from your service van or cart without unloading the unit. You pull up, run the hoses, and start the service cycle right from where the machine sits.

What's the difference between the AC1234-4SL and the standard AC1234-4?

The AC1234-4SL adds the integrated scale lock, safe startup prevention when locked, an indicator light for lock status, tie-down points, and 12-foot hoses (versus 9-foot on the standard model). Core performance specs like 98.5% recovery efficiency and +/- 0.5 oz charge accuracy are the same. The SL model is specifically configured for mobile and on-site service where transport accuracy is critical.

What replacement parts and consumables will I need?

The filter-drier cartridge is rated for 330 lb (150 kg) of refrigerant before replacement. You'll also need vacuum pump oil on a regular maintenance schedule. We stock Robinair replacement filters, pump oil, and maintenance kits, so you can order consumables when you order the machine and keep them in your service vehicle for field maintenance.

Q: What does the scale lock do for mobile service? A: Mechanical scale lock secures internal cylinder to weighing platform during transport. Eliminates recalibration at each stop. Maintains +/- 0.5 oz charge accuracy throughout the service day. Q: Can it service high-voltage hybrid and EV A/C systems? A: Yes. Services both standard and high-voltage vehicle A/C systems using R-1234yf refrigerant. Q: How long are the hoses and can I service from the van? A: 12-foot (3.65 m) SAE J2886 hoses. Reach vehicle A/C ports from service van without unloading the machine. Q: What's different from the standard AC1234-4? A: AC1234-4SL adds scale lock, safe startup, indicator light, tie-down points, and 12-foot hoses (vs 9-foot). Same 98.5% recovery efficiency and +/- 0.5 oz accuracy. Q: What consumables are needed? A: Filter-drier cartridge rated for 330 lb (150 kg). Regular vacuum pump oil changes required. Replacement filters, oil, and maintenance kits available.

⚠ California Proposition 65 Warning: This product can expose you to chemicals including vinyl chloride, styrene, and other refrigerant-related compounds, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.p65warnings.ca.gov.

About the Brand

Robinair

View All Robinair Products

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