Description
Moving structural steel segments by hand requires unpowered trolleys with minimal rolling friction. The JET 10-PT 10 Ton Plain Trolly handles massive 20,000-pound loads along overhead beams without electrical hookups. Geared for heavy industrial construction yards, it provides brute load handling. Moving this trolley along dirty beams demands massive manual operator push force.
Frame integrity relies on thick 3/4-inch rolled structural steel side plates held rigid by dual heavy steel cross pins. Four large-diameter cast-steel wheels rotate on double-row pre-lubricated ball bearings to handle massive vertical compression loads. Shock from dropped crane loads deforms budget axles. These central axles use heat-treated 4140 chrome-moly steel to survive extreme shock loading without permanent shaft bending.
Structural Rail Traverse Hardware
Fabrication shops require heavy raw steel transport along ceiling rails. Balanced weight distribution minimizes wheel bearing drag across thick flange beams.
- 20,000-pound static working load limit handles immense structural weldments and heavy factory press dies.
- Adjustable side plate design expands quickly to fit structural I-beams and H-beams from 4-3/4 to 8 inches wide.
- Large-diameter steel wheels roll across tapered standard I-beams or flat wide-flange structural members.
- Double-row sealed ball bearings eliminate daily manual greasing requirements during high-tempo jobs.
- Solid steel drop lugs wrap beneath the beam flange to prevent carriage drops if a wheel breaks.
- Dual suspension shafts distribute heavy hoist hanging loads across both structural side plates evenly.
- External mechanical steel bumpers absorb end-stop collisions to protect track wheel bearings from blunt shock.
Push Force Rolling Resistance Telemetry
Laboratory load testing under a full 10-ton deadweight reveals a rolling breakaway resistance of 180 pounds of horizontal force on level A36 steel beam. Rolling drag drops to 110 pounds of push force once forward momentum begins. Bearing operating temperature remains ambient under slow yard push speeds. Mechanical clearance holds tight with under 0.040 inches of frame deflection at 125 percent proof load.
Yard Operation Service Trade-Offs
Ground crews must never use this plain push trolley on overhead beams with slopes steeper than 1 degree. Do not purchase this unpowered unit for long travel paths where operator fatigue introduces back strain injuries. Rapid impacts against rail end-stops distort wheel bearings.
- Inspect wheel bearing seals monthly for extrusion or ingress of abrasive blast media and sand.
- Verify beam flange adjustment washers show zero thread stretch or loosening after heavy rigging shifts.
- Clean running tracks weekly using a steel wire brush to prevent wheel flat spots caused by crushed track debris.
JET Commercial Warranty Package Contents
JET guarantees this mechanical unit with a 1-Year limited commercial warranty covering side plate castings and wheel assemblies. The crate contains 1 10-ton plain trolley, 2 central hanger pins, 1 flange spacer washer set, 4 safety locknuts, and 1 inspection documentation sheet.
