1. Steel structure: steel is an important component element of tower crane, the production material of tower crane from all major steelworks in nationwide in our company, with high quality and good material, under a small difference, which can improve the coefficient of safety of the complete appliance.

2. Hoisting mechanism: it used three-speed variable motor and speed reducer with large center distance, simple control system, and reliable performance. Meanwhile, it used technology of bulky wound roll in order to resolve question of lifting structure disorder cable in tower crane industry. The machine structure can be maintained easier by external brake configuration.

3. Slewing mechanism: our company production used wound rotor motor of the rheostat control and frequency control, to make sure that the tower crane can rotation speed go-as-you-please, placidly jump-start, precise location, the impact of tower crane minished largely and the safety performance can be improved.

4. Luffer: it was used electric motor of double speed or three-speed according to the length of the working arm length to turn speed and operational control, smaller impact, the stationery and work efficiency of operation can be improved.

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