Description
Raise heavy service loads with JET AHJ-20 20 Ton Air hydraulic force when low-clearance machinery or vehicle work needs controlled bottle-jack travel. Experienced automotive and industrial technicians gain 20-ton capacity, 90-to-145 PSI air operation, and manual hydraulic backup, but can the jack support a raised load without mechanical stands? Its electrically welded steel body, forged-steel base, protected cylinder, air pump, and conventional handle support lifting, pushing, spreading, bending, pressing, and straightening.
Model JT9-456620 provides a 9-2/3-inch minimum height, 18-2/3-inch maximum height, 4-1/2-inch piston stroke, and 8-2/3 by 6-8/9-inch base. Product data lists 20-ton capacity, 40,000-lb capacity field, air pressure from 90 to 145 PSI, protective case, handle, and ANSI/ASME B30.1 and PALD-1 compliance. Published weight fields vary around 36 to 45 lbs, so confirm current shipping weight.
Features of JET Air Jack
Fleet garages, heavy-truck service centers, agricultural shops, and industrial maintenance bays need an air-over-hydraulic bottle jack for lifting and positioning large loads. Trained operators can use the AHJ-20 after checking contact points, air pressure, base stability, load balance, and mechanical support.
- 20-ton capacity supports compatible trucks, trailers, machinery, and industrial components.
- 90-to-145 PSI air requirement supports pneumatic lifting-speed control.
- 9-2/3-inch minimum height fits selected low-clearance contact points.
- 18-2/3-inch maximum height provides extended access during service.
- 4-1/2-inch piston stroke provides controlled vertical movement.
- Forged-steel base supports stability during approved lifting operations.
- Manual handle allows operation without an external air supply.
- Protective case supports transport and storage between jobs.
Hydraulic Load Test Control
No independent proof-load result, hydraulic pressure telemetry, seal test, frame-deflection measurement, lowering-speed report, or vehicle compatibility certification was supplied. Do not treat 40,000 lbs as a proof load. Side loading, unstable bases, damaged hoses, insufficient air pressure, hydraulic leakage, and unsupported raised loads can cause movement or load loss.
Hydraulic Limits Service
The air pump, manual handle, welded steel body, forged base, protected cylinder, and 4-1/2-inch stroke support vehicle and industrial lifting. This bottle jack is not verified for personnel lifting, permanent support, unstable flooring, side loading, or suspended loads without properly rated mechanical stands.
- Inspect the air valve, hose, cylinder, handle, base, saddle, and welds before use.
- Confirm contact-point placement, air pressure, load balance, and stable foundation.
- Support every raised load mechanically and remove the jack after leakage or damage.
Warranty Compliance Contents
JET lists a 2-Year Limited Warranty for model JT9-456620 and ANSI/ASME B30.1 and PALD-1 compliance. Package contents identify the bottle jack and handle, with a protective case listed as a feature. Confirm current warranty terms, air requirements, operator manual, case, handle, and inspection documentation before commercial service.
