Overview
A Duplex Joystick Controller is a highly efficient and ergonomic crane operating device designed to provide precise control over multiple crane motions such as hoisting, cross-travel, and long-travel. This controller is used in EOT cranes, overhead cranes, gantry cranes, and heavy-duty material handling systems, allowing operators to smoothly manage complex operations with just one hand.
Its duplex design means it can control two independent motions simultaneously, offering greater flexibility and efficiency in crane operation. Built with robust engineering and industrial-grade materials, the Duplex Joystick Controller ensures long life and reliable performance in even the toughest environments.

Key Features
-
Rugged Construction: Made from durable metal and high-strength components.
- Dual-Function Control: Operate two crane motions at once.
-
Ergonomic Design: Comfortable grip for long hours of operation.
-
High Accuracy: Ensures precise control and movement of cranes.
-
Safety Switches: Built-in contact blocks prevent accidental operations.
-
Customizable Design: Available with different lever configurations and contact ratings.
How It Works
The Gravity Limit Switch operates on a simple mechanical principle:
-
A weighted lever is attached to a rotating shaft driven by the movement of the crane or hoist drum.
-
As the drum rotates and reaches the set limit (up or down), the lever moves due to the gravity-based mechanism.
-
The lever’s movement activates internal electrical contacts, which either cut off or reverse the motor circuit.
-
This stops the motion of the crane or hoist, preventing over-lifting or over-lowering of the load.
Because it relies on gravity instead of spring tension, it ensures consistent operation even after long-term use.