DF900D Nose-girder Positioning Beam Launcher

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DF900D Nose-girder Positioning  Beam Launcherf (DF900D BL for short)develop by us is one of our NDF’s advanced equipments specialized for erecting Class 900t Railway Box-girder Bridge.

With high manufacturing quality, it was developed and improved on the base of our DF900 simple-span type Lauching Girder and desiged with many excellent features by absorbing advantadges of same purpose equipments at home and abroad.

Applicable Scope

   DF900D Launching Girder is used to erecting Railway Precast Concrete Box-girder Bridge with span up to 32meters and weight up to 900tons.  For bridge type, it often used to  erect Double-track monolithic box- girder Bridge, and can meet  different span-beams’ erection (like 32m,24m and 20m) in one project.

   Besides the normal operation, it perfectly meets the needs to erect first-span and last-span beams and can be operated and exchange flexibly between many different construction conditions. And transported by our Elevating Transporter(ET), it can be moved from one place to another and pass through tunnels.

(1)Main Technical Specification:

&#61550   Work Rank: A3

&#61550   Hoisting Capacity : 900t

&#61550   Applicable Span: 32m,24m and 20m

&#61550   Anti-hoisting Impact Factor: 1.05

&#61550   Max. Hoisting Height: 7.2m

&#61550   One-span Forward Moving Speed:0~3.0m/min

&#61550   Factor of Safety Against Overturning:≧1.5

&#61550   Applicable Longitudinal Gradient:≤2.0%

&#61550   Applicable Curve Radius:≥600m

&#61550   Walking Speed of Beam-hoisting Trolley:0~3m/min

&#61550   Hoisting Speed of Beam-hoisting Trolley:

   Heavy Load:0~0.5m/min

  Idle Load:0~1.0m/min

&#61550Beam-hoisting Trolley:

              Transverse fine adjustment Speed :0~5.0mm/s

              Transverse fine adjustment Scope:±250mm

              Longitudinal  fine adjustment Speed:0~5.0mm/s

              Longitudinal fine adjustment Scope: ±250mm

&#61550   Max. Deflection Of Nose-girder:61.5mm

&#61550   Average Beam-erection Speed:2spans/8hours

                                       (totally about 8 kilometres long)              

&#61550   Dimension(Length× Width ×Height):

      1) Whole Machine Overall Dimension:

             Under Working:59.3m×17.1m×12.1m

             Under Transporting:65.5m×17.1m×13.1m

                                  (includes Dimension of itsTranporter)

     2)Max. Part Dimension while transported:11m×3.3m×2.3m

                                  (referring to Nose-girder Main Girder)

&#61550   Weight:

     1) Whole Machine Weight:525tons

     2) Max. Part Weight while transported:27tons

&#61550   Power Source:380V 4Ac

(equiped with 300Kw Diesel Engine)

&#61550   Drive mode:Hydrocylinder driven by Hydraulic

                           Station and other parts by electric motor

&#61550   Control mode:  By control cab and wireless remote control (2) Suitable working condition

   a. Max.working Altitude: ≤2000m

   b. Ambient temperature:-20C°~+ 50C°

   c. Wind power:working≤6 grade,non-working≤11 grade.

   d. The abutment supporting the Launching Girder should be level and  Project Site againsts dangers of flammability, explosive and corrosive gas.

   e. Designed with enough light to meet nighttimes working

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