Electric hoists, cranes, chain hoists, explosion-proof electric hoists, electric chain hoists, and lifting chains are essential tools in industrial and construction environments. The Hebei Kaicheng PK two-speed electric chain hoist is a compact and lightweight solution designed for efficient lifting operations. It is constructed from high-strength light metal alloy, ensuring durability while maintaining a manageable weight. This hoist offers both single and double-speed lifting options, with a standard lifting height of 3 meters and a wide range of lifting capacities from 125 kg to 2000 kg. The PK electric chain hoist operates on either 220V or 380V power supply, making it adaptable to different working conditions.
The design of the PK two-speed hoist features a three-stage fixed-axis helical gear system, which ensures smooth and reliable performance. The gears and gear shafts are made from high-temperature processed alloy steel, enhancing their strength and longevity. The housing and cover are crafted from high-density cast iron, providing robust protection against wear and tear. All components are assembled with precision, ensuring excellent sealing and ease of maintenance. The reducer is designed as a separate unit, allowing for simple disassembly and servicing.
One of the key advantages of the PK two-speed electric chain hoist is its stability during operation, as it does not experience center of gravity deviation. This makes it safe and efficient for use in various applications. It can be used in fixed suspension setups or combined with a trolley on single or double beam cranes, offering flexibility in different lifting scenarios.
In terms of electrical control, the two-speed electric hoist comes in two configurations: "direct control" and "control type." The direct control version allows users to operate the motor’s forward, reverse, and fast speed functions directly using a flashlight switch. In contrast, the control type uses a contactor to manage the motor's movement, offering more precise and controlled operation.
The control panel is equipped with a control transformer, ensuring safe and stable operation. The flashlight door includes either a single-speed or dual-speed button, depending on the model. The single-button flashlight is used for single-speed hoists, while the dual-button version is designed for two-speed models. When the first gear is pressed, the motor runs at a slow speed. Pressing the second gear engages the fast speed. A red large button with a clockwise arrow serves as the emergency main switch, allowing immediate power cutoff in case of an emergency or when the operation is complete.
When using the flashlight door, the button must be turned clockwise. Once released, it automatically resets, activating the manual switch. As the buttons are energized, the electric hoist begins its lifting process. This intuitive and user-friendly design enhances both safety and efficiency in daily operations.
For more information, visit [http://news.chinawj.com.cn](http://news.chinawj.com.cn). Editor: Hardware Business Network Information Center.
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