70m Jib Length Tower Crane ZJ7019

ZJCM always adheres to the value that supply the most valuable tower crane and service for the customer, with the highest cost performance in the industry. ZJ7019 tower crane has 70m jib length, tip load is 1.9t, max capacity is 12t., load moment is 200t.m.

1. Automatic detection of brake force: Before starting the tower crane every day, the system automatically performs brake force detection. Complete brake inspection Logic testing can effectively detect faults in electrical and brake mechanical systems, ensuring the safety of tower cranes to the greatest extent possible.

2. Hook detection and automatic control function: The frequency converter will continuously detect whether the holding brake mechanism is abnormal during shutdown, and whether the holding brake mechanism is abnormal. When it often causes the hook to slide, the system automatically starts the frequency converter to hover the heavy object (rising at a very low speed) and reports a fault, reminding the driver safely lower heavy objects to the ground.

3. Hook anti hanging function: When the hook or heavy object on the hook is hung, the weight sensor and anti tipping sensor in the system and frequency conversion built-in sensors can provide protection to prevent the hook from continuing to operate and prevent safety accidents from occurring.

4. Load and speed control function: Automatic constant power control, automatically calculating the maximum allowable upward and downward movement based on the weight of the lifted object.

The speed of the line achieves the effect of light load high speed and heavy load slow speed, and the speed will change linearly with the load, improving the operation while ensuring efficiency, it also prevents the lifting mechanism from running at high speeds when the driver is overloaded, ensuring safe and reliable system operation.

5. Super strong starting torque, stable operation with low frequency and high torque: 0Hz/180% rated torque stable output, ensuring that the lifting equipment is started smooth operation during movement, ascent, and descent.

Weight: the weight of underground section without load and ballast with longest jib and maximum free-standing height.

1. Automatic detection of brake force: Before starting the tower crane every day, the system automatically performs brake force detection. Complete brake inspection logic testing can effectively detect faults in electrical and brake mechanical systems, ensuring the safety of tower cranes to the greatest extent possible.

 

2. Hook detection and automatic control function: The frequency converter will continuously detect whether the holding brake mechanism is abnormal during shutdown, and whether the holding brake mechanism is abnormal. When it often causes the hook to slide, the system automatically starts the frequency converter to hover the heavy object (rising at a very low speed) and reports a fault, reminding the driver safely lower heavy objects to the ground.

3. Hook anti hanging function: When the hook or heavy object on the hook is hung, the weight sensor and anti tipping sensor in the system and frequency conversion built-in sensors can provide protection to prevent the hook from continuing to operate and prevent safety accidents from occurring.

4. Load and speed control function: Automatic constant power control, automatically calculating the maximum allowable upward and downward movement based on the weight of the lifted object. The speed of the line achieves the effect of light load high speed and heavy load slow speed, and the speed will change linearly with the load, improving the operation while ensuring efficiency, it also prevents the lifting mechanism from running at high speeds when the driver is overloaded, ensuring safe and reliable system operation.

5. Super strong starting torque, stable operation with low frequency and high torque: 0Hz/180% rated torque stable output, ensuring that the lifting equipment is started smooth operation during movement, ascent, and descent.

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