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Single Girder Electric Overhead Bridge Travelling Grab or Grapple or Bucket Crane

Single girder electric overhead bridge travelling grab or grapple or bucket crane

LZ type single girder grab crane consists of main beam,end beam,electric hoist trolley,four rope grab bucket, festoon cable and electric control system.

The crane working class is A3, rated lifting capacity is 3t,5t, span 7.5 ~ 28.5m, working environment -20 ℃ ~ +40 ℃, lifting height 6-30m, remote control or pendent control or cabin control. Grab open direction with vertical or parallel to main beam. The crane is  prohibited to be used in the flammable, explosive, corrosive environments.

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Mechanical parts:

Single welding box girder, beam deflection with DIN/FEM standard

Steel Material: Chinese standard Q235B,Q345B,Q355E

Manual brush painting,One alkyd iron red primer painting, two alkyd orange enamel finish painting

Epoxy zinc-rich primer painting for one bottoms and two sides of 120μm thick, to achieve a long lifespan, beautiful appearance and good luster.

The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the whole machine.

The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment preventing plate.

echnical parameters

Lifting weight(t) 3 5
Span(m) 7.5~28.5
Max Lifting height(m) 6~30
Working class A3
Speed(m/min) Main Hoisting 8,8/0.8
Speed(m/min) Trolley Cross Traveling 20,2~20
Speed(m/min) Crane Long Traveling 30,3~30
Motor Type Squirrel cage motor
Motor (Kw) Main Hoisting 2*4.5 2*7.5
Trolley Cross Traveling 2*0.4,2*0.8
Crane Long Traveling 2*0.8,2*1.5
Control mode Pendent line control,Remote control,Cabin control
Recommended Rail model 24kgs/m 30kgs/m
Power source 3Ph A.C 50Hz 380V
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