Bases Fixing Angles For R87 Mast

products Specification

Type , Model: Bases Fixing Angles For R87 Mast

Size: 1.6M

Use for : K40 masts  K437A masts  K439A masts ,1.6m K type mast  1.6mx1.6mx5m

Materials: Q345B

Process: Blasting derusting, 

Painting:  Under painting , Middle painting, Surface painting.

Our factory produce and supply almost all famous brand tower crane :Mast section, Anchor Frame, Fixing angle ,Adaptor and so on as good quality and price.

Bases Fixing Angles For R87 Mast

Tower Crane Knowledge sharing：

Demolition scheme of QTZ63 tower crane: preparation work, demolition process, safety technical measures

QTZ63 tower crane is widely used in the construction of the tower crane model, in this paper, the tower crane construction machinery factory will be based on the production and use of QTZ63 tower crane experience, explain the demolition scheme of QTZ63 tower crane: preparation, demolition process, matters needing attention and safety technical measures.

A, general

The construction tower is 32 meters high and the arm length is 40 meters. Two additional wall devices have been installed. The tower crane foundation is located at -- 8 meters.

Ii. Removal scheme of QTZ63 tower crane

(1) preparation before disassembly

1) set up a leading group and a professional working group for the demolition of internal climbing tower cranes.

2) give a comprehensive safety technical disclosure to the demolition team according to the demolition scheme of tower crane.

3) prepare 5t5 and 10t3 manual chain hoist for removing tools and tools; Adjustable spanner, Allen wrench, size hammer, palm rope and screwdriver; One steel wire rope (650m), one set pulley and one lifting hook.

 One seat belt per person 4 5t and 10t steering fixed pulley; 10 standard sections of man-cargo elevator; 3 sets of 20 # channel steel beams24 blue bolts One 25t truck crane; A mast on the floor, etc.

Before disassembly, conduct a comprehensive inspection on the tower crane, check whether all connection bolts, pin shafts, rope clips, wire ropes, brakes and other safety devices are sensitive and reliable, check whether the hydraulic system, steel beam, climbing frame and other work is normal, and confirm everything is correct before disassembly.

Bases Fixing Angles For R87 Mast

5) the site is ready to remove all obstacles affecting the removal of tower cranes in the roof site, and reinforce the protection of all reserved openings in the floor to facilitate the placement of removed parts.

(2) collapse of tower crane floor

1. Internal climbing tower crane falls as a whole

1) before the overall drop of the internal climbing tower crane at the original reserved hole (3.2m 3.2m), check whether the climbing frame and steel beam are firmly fixed on the building, and adjust the gap between the regulating wheel and the tower body (2 ~ 5mm).

2) fix the lifting arm perpendicular to the direction of the climbing beam, adjust the amplitude of the trolley, and make the center of gravity of the tower crane pass through the jacking cylinder.

Bases Fixing Angles For R87 Mast

3) retract the four joists supported on the climbing beam on the foundation section.

4) the jack-up cylinder roof beams in the tower step control hydraulic system, will the tower fell by about 1.6 m, 50 layer will climb climb poles within the framework of two support on the tower crane footfall, recover the oil cylinder, the top beam support in a step, demolished within two root climb poles,

Manipulation of oil cylinder to the drop of 1.6 m, next reoccupy grabbed another pair poles footfall, repeat the above operation, until the lower weight around 0.6 m from the floor, stop falling.

Bases Fixing Angles For R87 Mast