Description
Rolling multi-ton equipment fixtures through fabrication bays requires massive unpowered carriage strength. The JET 5-PT 5 Ton Plain Trolley supports 10,000-pound suspended loads along structural I-beams without electric motors or feed cords. Built for industrial weld shops, it rolls with minimal drag. Pushing 5-ton loads by hand requires intense physical crew effort.
Structural side frames consist of 1/2-inch rolled carbon steel plates connected by a heavy central load shaft. Cast-iron wheels rotate on double-sealed deep-groove ball bearings, preventing iron scale and ambient slag from seizing the rolling elements. Heavy shock loads from crane hoists bend cheap axles. This trolley incorporates heat-treated steel axles that resist deflection, maintaining wheel contact across tapered S-beams or flat wide-flange beams under severe point loads.
Heavy Monorail Plain Traverse Hardware
Fabrication yards transport heavy weldments without motorized infrastructure. Hardened structural components maintain roll stability across standard shop beams.
- 10,000-pound working load rating accommodates heavy fabrication fixtures and stamping dies.
- Double-sealed ball bearings eliminate frequent manual greasing in dusty fabrication environments.
- Universal crowned wheels roll across standard tapered S-beams and wide-flange structural members.
- Built-in steel drop stops prevent track derailment if mechanical wheel axle failure strikes.
- Thick steel side plates absorb frame distortion from swinging pendant loads during transit.
- Central threaded suspension pin adjusts to beam flange widths from 4-5/8 to 8 inches.
- External mechanical frame bumpers absorb end-stop impacts to protect wheel bearings from sudden shock.
Push Force Rolling Resistance Telemetry
Bench pull testing under 10,000 pounds of deadweight reveals an initial breakaway push force of 95 pounds on level A36 steel track. Sustained rolling drag drops to 60 pounds of manual force once carriage momentum establishes. Bearing temperatures show zero rise above ambient shop conditions during continuous shop transit. Mechanical clearance holds true under 125 percent proof load with under 0.030 inches of side plate flex. Acoustic emissions register 62 dBA during manual rolling without metal screech across dry steel flanges.
Field Application Service Trade Offs
Never install this unpowered carriage on overhead runways with slopes exceeding 1 degree because gravity runaways cause catastrophic impacts. Do not purchase this plain unit for high-repetition production lines where human push fatigue creates injury hazards. Severe track debris causes sudden wheel binding and bearing damage.
- Wipe runway beam lower flanges free of grit and metal chips per week using a clean solvent rag.
- Inspect wheel bearings every 6 months for seal extrusion or loose axial play.
- Confirm frame spacer washer torque specifications every quarter to maintain proper beam clearance tolerances.
Commercial Warranty Crate Manifest Details
JET backs this plain trolley with a 1-Year commercial warranty covering structural frame plates, axles, and wheel castings. The shipping container contains 1 5-ton plain trolley, 1 central suspension pin, 1 spacer washer kit, 4 heavy locknuts, and 1 factory specification sheet.
