L66A1 Mast Section For Tower Crane Masts

Products Specification

Type , Model: L66A1 Mast Section For Tower Crane Masts

Size: 2mx2mx3m 

Materials: Q345B

Within: Pins, bolts, Ladder, Platform

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.

L66A1 Mast Section For Tower Crane Masts

Tower Crane Knowledge sharing：

Rules for safe operation of tower crane: mechanical, personnel, environment, operation, etc..
This article mainly introduces the operation rules for the safe use of the tower crane, including the specific requirements for the tower crane machinery and equipment, the tower crane driver and other personnel management regulations, operating environment, and tower crane operation technology.
(1) The soil carrying capacity of the tower lifting base must be strictly in accordance with the original plant use regulations or meet: 8 to 12 T / M2 for medium-sized towers and 12 to 16 T / M2 for heavy towers.
(2) The rail or concrete foundation of the tower crane must be designed and checked before it can be used. Slope and drainage facilities should be built around the foundation and a certain safe distance should be maintained from the foundation pit.
(3) The lifting shall be dismantled and installed by a specialized team that has obtained the qualification certificate issued by the competent administrative department for construction, and shall be supervised by technical and safety personnel in the presence of such personnel.

L66A1 Mast Section For Tower Crane Masts

(4) The disassembly personnel shall wear safety and protective supplies, wear safety belts when working high, and be familiar with the disassembly process and operating procedures.

(5) After the tower crane is installed, it shall undergo technical inspection and adjustment of the whole machine, and it shall be delivered for use only after the whole machine has passed the inspection in phases.

In the absence of load, the vertical deviation between the tower body and the ground must not exceed 4/1000. The motor and hydraulic parts of the tower crane shall be carried out in accordance with the relevant provisions concerning electric motors and hydraulic devices.
(6) No lifting, installation or disassembly shall be carried out when the wind reaches level 4 or above. The connection of various parts of the hydraulic lifting system must be checked before lifting. It is strictly forbidden to turn the boom and other work when climbing.

L66A1 Mast Section For Tower Crane Masts

(7) In the event of strong winds or heavy rain, heavy snow, heavy fog and other bad weather, the tower lifting should be stopped. When working after rain and snow or in rain and snow, you should first go through the test crane to ensure that the brake is sensitive and reliable before operating.

(8) There shall be a reliable grounding device for the metal structure of the tower crane, the track and the metal housing of all electrical equipment, and no more than 4Ω of ground resistance, and lightning protection shall be provided.

(9) The arrangement, spacing and wall distance of the poles of each attachment device shall be in accordance with the original regulations, and the design calculation book for the self-made poles shall be provided.
(10) Tower hoisting shall not be carried out near overhead transmission lines. If the conditions are limited to the site, safety and protection measures must be taken when operating along the line. The safety distance between the tower crane and overhead transmission wire should meet the regulations.

L66A1 Mast Section For Tower Crane Masts

(11) Prior to operation, a comprehensive understanding of the surrounding environment, roads, overhead wires, buildings, and weight and distribution of components at the work site is required.

(12) There shall be sufficient working space for the lifting of the tower. There shall be no obstacles in the lifting and landing of the heavy arm rod and the radius of rotation of the tower.
(13) The operator should make a sound before performing such actions as lifting, rolling, walking and lifting. The voltage of the check power supply should reach 380V, and its change range should not exceed +20 V, -10 V. The start control switch before transmission should be in zero position.

L66A1 Mast Section For Tower Crane Masts