Crane Comparison PDF Print E-mail

Item

Romack Crane

Normal Crane

Hoisting
Motor

—Squirrel cage pole-change motor
—Optimized cooling 30% higher

—Protection class IP55
—Motor duty 60% ED
—Carbon brush type, more spares
—Normal cooling
—Protection class IP54
—Motor duty 40% ED

Drum

Larger diameter
—Longer wire rope lifetime
—GGG70 iron casting rope guider
—Small diameter
—Plastic rope guider

Wire rope

High duty, stress 2160N/mm2
Galvanized, maintenance free
—No anti-rust treatment
—Stress 1440N/mm2

Gearing

Hardern Soft tooth surface

Brake

Disk brake, self-adjusted
Maintenance free
—Shoe type brake,
manual adjustment

Travelling
motor

—Inverter motor, squirrel cage type
—Protection class IP55
—Motor duty 40% ED
—1 speed motor
—Protection class IP44
—Motor duty 15 ~ 25%ED

Trolley

Stepless, stable operation —1 speed, huge strike

Bridge

Stepless, stable operation —1 speed, huge strike

Condition
monitoring

—Life counter
—Overspeed, overheating, overload monitoring and alert

—Brake liner monitoring and alert
—No

General
design

—Light weight
Less wheel load
—Smallest size
Lowest height
—Larger, heighter, weighter
 
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