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     High Quality Pulltype Elevator
 
    Duokuai Brand Elevator adopts the frequency conversion driving (VVVF) and vector controlling. By adjusting the voltage of dragging motor, the output torque is controlled, by adjusting the frequency, the running speed of elevator is controlled. VVVF decelerates and accelerates in more stable course with quick running speed and high accuracy of stop position.
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      The frequency conversion driving (VVVF) can control the running speed and other running parameter of elevator accurately and reliably. This function has excellent results, saving 45% energy.
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    House elevator is the competitive product of Duokuan (Jiangyin) company, this type elevator adopts the gear dragging unit.
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