The brake disc is composed of steel plate, adhesive heat insulation layer and friction block. The anemometer is generally set with alarm wind speed, if the current wind speed reaches the alarm wind speed, it will send sound and light to alarm; If the current wind speed reaches the control wind speed, the instrument will send a control signal to provide corresponding control processing when the sound and light alarm is issued. Load moment indicaor, through the display screen, the tower crane lifting height, height, load capacity, torque and wind speed are visually displayed and protected, and sound and light prompts are provided when overload or over torque is approaching.
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Multiturn encoder: 4~20mA linear output and RS485 digital output，More flexible multifunctional intelligent absolute encoder，Measuring angle, length and speed This product combined the controller and thyristor module, the connection of the users is simple and easy. This is to prevent the damage of the controller and thyristor module caused by mis-wiring of the customer. Joystick widely apply for various products and operating modes. The electrical control system has been optimized on the base of technology. So it has many advantages, such as compact structure, reasonable layout, reliable quality and low maintenance cost etc. All electrical parts( contactor, relay, terminal and so on) are from famous supplier at local or abroad.
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The Motors(hoisting motor, slewing motor, trolley motor and traveling motor) are designed and manufactured on the basis of the overseas mature technologies. It is constituted with torque three-phase asynchronous motor, built-in planetary reducer, winding drum, tack and other components. The mechanism can get low, medium and high speed by voltage control and eddy current brake. The motor is equipped with an electromagnetic disk brake with features of smooth start and braking, safe & reliable braking and accurate positioning.
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