ATD air operated vacuum pump for automotive A/C — 3410 model, R-12/R-134a fittings, 28.3 inHg at 90 PSI

The ATD Tools 3410 is an air‑driven vacuum pump designed for automotive A/C service, delivering up to 28.3" of mercury vacuum at 90 PSI while operating from standard shop air.

Compact and housed in a high‑impact nylon case, this pump runs off compressed air (75–180 PSI) and comes with the fittings needed for R‑12 and R‑134a systems. It provides a practical, portable solution for technicians who need a reliable vacuum source without electrical power. The unit’s modest air demand and measurable vacuum capacity make it suitable for routine evacuation tasks in garage or field environments.

How much air pressure and volume does the pump require to run effectively?

The pump needs between 75 PSI minimum and 180 PSI maximum of shop air to operate. At a typical working pressure of 90 PSI it consumes approximately 4.2 cubic feet per minute (CFM), balancing performance and air usage for most compressor systems.

• Operating pressure range: 75–180 PSI
• Air consumption: 4.2 CFM at 90 PSI
• Designed for standard compressed air sources in workshops

What vacuum performance can I expect for automotive A/C systems?

When supplied with 90 PSI shop air, the pump achieves a vacuum capacity of about 28.3 inches of mercury (inHg) at sea level. That level of vacuum is appropriate for many automotive A/C evacuation tasks and helps remove moisture and noncondensables before refrigerant charging.

• Vacuum capacity: 28.3" Hg at 90 PSI (sea level)
• Suitable for evacuating R‑12 and R‑134a HVAC circuits
• Includes necessary fittings for automotive service work

What are the size, weight, and portability features?

The pump is packaged in a durable, impact‑resistant nylon case that protects internal components and makes transport easy between bays or to remote jobs. Its compact footprint and lightweight packaging mean it won’t add bulk to a technician’s tool kit while still offering rugged field performance.

• High‑impact nylon case for durability and transport
• Package dimensions: 16.8" L × 15.9" W × 5.4" H
• Package weight: approximately 0.95 pounds for easy handling

Which refrigerants and applications is this vacuum pump compatible with?

The ATD 3410 is configured for automotive refrigerant service and ships with fittings compatible with both R‑12 and R‑134a systems. It’s intended for evacuation tasks prior to charging or leak testing on passenger vehicles and similar A/C installations.

• Compatible refrigerants: R‑12 and R‑134a automotive systems
• Includes service fittings so you can connect quickly
• Best for routine automotive A/C evacuation and prep

Who is this for: The ATD Tools 3410 air operated vacuum pump is aimed at auto technicians, mobile service providers, and DIYers who need a compact, non‑electric vacuum source for A/C work. If you work on passenger vehicle air conditioning, value portability, and have reliable shop air (75–180 PSI), this pump provides a straightforward evacuation solution without the need for an electric motor.