JET MT050 1/2 Ton Electric 2 Speed Trolley 3 Phase

Description

Overhead bridge crane installations fail when undersized carriages bind across dirty structural steel. The JET MT050 1/2 Ton Electric trolley shifts 1000-pound hoisted assemblies along shop runway beams with low mechanical push resistance. Rated for light commercial machine bays, this 3-Phase traverse motor handles steady production. It cannot clear track curves under 39 inches without flange pinch.

The drive unit marries a 4-pole induction motor to an oil-bath helical gearbox encased inside heavy cast-iron side plates. Forged carbon steel wheels ride on shielded deep-groove ball bearings that reject ambient iron grinding dust. Shock loads from swinging engine blocks generate intense side-thrust along track wheels. Hardened steel wheel flanges resist groove wear across tapered S-beams or modern flat-flange structural tracks.

Traverse Drive Mechanical Features

Heavy parts move between assembly bays with controlled low-speed inching. The dual-speed traverse motor delivers smooth directional changes without load swing.

• Dual-speed 3-Phase motor provides 39 and 78 FPM travel speeds for rapid traversing or pinpoint jig location.
• Heavy cast-iron side plates absorb mechanical shock from sudden crane stops without bending wheel axle alignments.
• Hardened steel drive wheels feature machined crowns that track both standard S-beams and wide-flange I-beams.
• Oil-bath lubrication system bathes hardened helical gears to dissipate gear heat under high-cycle industrial usage.
• Drop-stop steel safety lugs support track positioning if mechanical axle fatigue causes sudden wheel bearing failure.
• Cast rubber frame bumpers cushion runway end-stop impacts to protect internal gear trains from shock fracture.
• Adjustable spacer washer system alters carriage span across beam flange widths ranging from 3 to 8 inches.

Electrical Telemetry Dynamometer Bench Data

Electrical load tests at 230 Volts 3-Phase draw 1.8 Amps during continuous 1000-pound traverse pulls. Gearbox sump temperature stabilizes at 148°F under a continuous 40 percent duty cycle in 85°F shop air. Motor operation registers 71 dBA measured at 3 feet from the housing. Low traverse speed yields 39 FPM, while high traverse speed yields 78 FPM with zero wheel slippage across clean, dry A36 structural steel.

Shop Floor Service Parameters

Riggers must not mount this carriage on corroded exterior tracks exposed to acid washdown spray. Do not buy this carriage for beams with flange thickness tapering past factory washer limits. Over-torquing beam hanger bolts pinches side plates, causing gear bind.

• Pack track wheel bearings with high-temperature lithium EP2 grease every 250 hours of crane transit run time.
• Verify side plate clearance measures exactly 1/8-inch wider than track beam flanges during regular monthly inspections.
• Drain and refill the sealed helical drive gearbox using industrial SAE 90 gear oil every 12 operating months.

Manufacturer Warranty In Box Manifest

JET backs this unit with 2-Year commercial warranty coverage on drive motor components and cast frame castings. The unboxed shipment includes 1 electric trolley assembly, 1 suspension pin, 1 spacer washer pack, 4 guide rollers, and 1 hardware installation manual.