Lichamp Vacuum Pump 4.5 CFM 1/3 HP Single-Stage – Cool Gray, Oil-Included, Portable HVAC

The Lichamp 4.5 CFM 1/3 HP single-stage vacuum pump is a compact, oil-lubricated HVAC pump designed to evacuate air conditioning and refrigeration systems quickly and reliably.

This vacuum pump pairs a 4.5 cubic feet per minute (CFM) pumping rate with a 1/3 horsepower motor and a 110V power rating, offering a balance of portability and performance for technicians, DIYers, and automotive or household A/C maintenance. Built with a die-cast aluminum housing, an oil sight glass, and thermal protection, it’s intended for evacuating systems using common refrigerants like R134a, R410a, R22, R12 and R502.

How fast will this pump evacuate an automotive or home AC system?

The 4.5 CFM rating means the pump moves a moderate volume of air per minute, making it suitable for small to medium refrigeration circuits and automotive systems. Exact evacuation time depends on system size, leaks, and hose diameter, but the pump is optimized for routine service and repair jobs.

• 4.5 CFM pumping capacity for efficient evacuation of typical A/C circuits
• 1/3 HP motor provides steady torque during drawdown
• Oil sight glass enables quick visual checks to maintain performance

Which refrigerants and applications is the Lichamp pump compatible with?

This single-stage pump is compatible with a broad range of refrigerants commonly used in automotive and residential HVAC work. It’s suitable for vacuuming systems before charging, for maintenance tasks, and for some light industrial vacuum requirements.

• Works with R134a, R410a, R22, R12, R502 and other similar refrigerants
• Use cases include car A/C service, home AC evacuation, refrigeration servicing, and vacuum packaging
• Not intended for deep vacuum lab work or large commercial systems without verifying required specs

What design features reduce oil backflow and protect the motor?

Lichamp integrates a high-volume cooling fan and built-in thermal protection to help the pump handle extended use and reduce the risk of motor burnout under load. The design also focuses on minimizing oil migration back into the vacuumed system.

• High airflow cooling fan to lower internal temperatures during prolonged operation
• Built-in thermal protection interrupts power if the motor overheats
• Anti-backflow measures and composite anti-slip base to protect oil and equipment

How easy is the pump to transport, use, and maintain?

The pump’s compact footprint, ergonomic carry handle, and clear oil window make it straightforward to move, operate, and inspect on the job. A user manual and a simple power switch streamline setup for routine service tasks.

• Ergonomic handle and compact form factor for portability and storage
• Oil sight glass for quick visual monitoring of oil level and condition
• Die-cast aluminum housing with anti-slip rubber base for stability

Who is this for? The Lichamp 4.5 CFM vacuum pump fits technicians, mechanics, and informed DIYers who need a portable, oil-lubricated pump for automotive air conditioning, residential HVAC maintenance, and light refrigeration tasks. It’s a practical choice when you require a balance of pumping capacity and transportability for routine evacuation jobs. For larger commercial systems or precision vacuum requirements, verify performance against job specifications before use.