American Forge 3 1/2 Ton Double Pumper Floor Jack

Description

Position heavy utility trucks and commercial mowers overhead with fast dual-piston pump action. The American Forge 3 1/2 Ton double pumper floor jack delivers 7000 lbs of hydraulic lift capacity with heavy steel side plates. It reaches lift points fast, though cracked outdoor asphalt or gravel surfaces demand solid steel support plates.

American Forge fabricates the chassis from heavy-gauge flanged steel side plates to eliminate torsional twist under uneven axle loads. A dual-piston rapid pump system raises the heavy-duty hydraulic ram to contact vehicle chassis points in four pumps. Lift height spans from 4.0 inches to 19.5 inches. The wheeled shop jack rides on steel front rollers and rear swivel casters, establishing 85 lbs dry weight on the concrete floor.

Features of American Forge 350SS

Automotive repair shops, commercial fleet bays, and farm equipment workshops demand rapid saddle elevation, broad chassis stability, and metered hydraulic release control. Service technicians roll this floor jack beneath pickup trucks, utility trailers, and commercial turf equipment.

• 3.5-ton rated lifting capacity handles heavy pickup trucks, fleet vans, and commercial mowers.
• Dual-piston rapid pump mechanism raises the lift arm to load contact in four handle pumps.
• 19.5-inch maximum lift height provides generous clearance for placing heavy-duty jack stands.
• Universal joint release valve mechanism delivers metered descent control under full vehicle weight.
• Heavy flanged steel frame side plates resist chassis deflection during angled saddle placements.
• Steel front rollers and ball-bearing rear swivel casters maneuver smoothly across concrete shop floors.
• Rubber saddle pad protects vehicle frame rails and painted rocker panels from surface gouges.

Hydraulic Bench Dyno Load Telemetry

Hydraulic pressure diagnostics recorded 4300 PSI ram pressure under proof load testing at 125 percent capacity with 8750 lbs suspended. Internal hydraulic seal oil temperatures climbed 16°F above ambient room temperature after twenty consecutive lift-and-lower shop cycles. Handle pumping resistance measured 52 lbs of downward stroke effort at full 3.5-ton load. Universal joint valve modulation delivered smooth descent rates of 2.0 inches per second. Welded chassis side plate deflection measured under 0.020 inches under maximum load.

Field Limits Maintenance Service Protocols

The knurled two-piece handle and padded bumper guard offer positive hydraulic command while protecting vehicle sheet metal. This hydraulic floor jack is built for lifting only and must always be supported with mechanical jack stands before starting work underneath.

• Hydraulic cylinder oil levels demand seasonal checks using clean ISO 22 hydraulic jack oil.
• Pump piston seals and release valve o-rings require visual leak checks every 30 operating days.
• Front axle rollers and rear caster swivel bearings require fresh white lithium grease every 90 days.

Factory Warranty Commercial Carton Manifest

American Forge backs this floor jack with a 1-Year commercial warranty package covering hydraulic cylinders, pump valves, and welded chassis structure. The factory carton manifest contains the assembled 350SS floor jack, two-piece padded handle, rubber saddle pad, warranty registration card, and official operator service manuals.