Beam Launcher

  • Span: 30-50m
  • Capacity: 80-300t
  • Minimum radius of curvature: 300m

Beam launcher is a special heavy equipment used to erect precast concrete beams on bridge piers during the construction of highway and railway bridges. The beam launcher is mainly composed of the main beam, front, middle and rear outriggers, auxiliary brackets, upper beams, cranes, traverse rails, hydraulic machine electrical systems, etc.

Henan Dafang Heavy Machine CO.,LTD developed a new type of beam launcher after improving the original beam launcher. The beam launcher has a lightweight structure, uses counterweights to balance to through holes, and walks forward, so there is no need to lay tracks on the beam surface. It can erect straight, curved, and longitudinally equal-span and variable-span double-line prestressed concrete whole-hole box girder. It has the characteristics of good beam hoisting stability, high working efficiency, safety and reliability, convenient variable span adjustment, and convenient operation.


  • The main beam adopts a truss structure, which has the advantages of light weight, large load, and strong wind resistance.
  • The pin and bolt link is disconnected every 12 meters, which is convenient for transfer and transportation.
  • Adopting walking forward, the middle outrigger does not walk on the bridge deck, so there is no need to erect a longitudinal moving track. This can save construction costs and improve erection efficiency.
  • The outrigger has an adjustable angle core plate, which can adapt to the inclined bridge at any angle below 45°.
  • The vehicle is equipped with Siemens or Schneider electric spare parts as standard
  • Optional: frequency conversion to adjust speed
  • Optional: safety monitoring, PLC control
  • Optional: Diesel generator set

DaFang Beam launcher

  • Standard protection measures of DaFang Beam launcher:
  • Emergency stop
  • Overload protection
  • Stroke, lifting limit
  • Undervoltage, phase loss, overcurrent protection
  • Audible alarm
  • The lifting mechanism and the motor are equipped with rain proof cover.
  • Anemometer


Item JQJ 30-100 JQJ 30-120 JQJ 30-160 JQJ 30-200 JQJ 30-300
Capacity(T) 100 120 160 200 300
Span(M) 30 30 40 50 50
Lifting Speed((m/min)) 0.79 0.79 0.7 0.9 0.7
Transverse Moving(m/min) 1.5 1.5 2.25 1.5 1.5
Longitudinal Moving(m/min) 3 3 4.25 2 2
Trolley Transverse Moving(m/min) 1.5 1.5 2.25 1.5 1.5
Trolley Longitudinal Moving(m/min) 3 3 4.25 2 2
Adaptive Longitudinal Slope 0.05
Applied Angle 45°
Adaptive Cross Slope 0.025
Total Power(KW) 65 65 75 110 150
Tips: All parameters can be customized.

Why Dafang Crane?

  • 70000 sets cranes/year
  • Output value: 600million USD
  • 850,000m²Covers an Area
  • Export 100+ country


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