What is a Ravioli Rotary Limit Switch and Why Does Your Crane Need One?
Imagine you are driving a car toward a wall. You want a sensor that automatically hits the brakes before you touch the brickwork. In the world of industrial cranes, that sensor is the Ravioli Rotary limit switches . Usually found in a bright yellow or black box, this device is the safety brain of your crane. It is physically attached to the motor. As the motor spins to move the crane, the switch counts the rotations. When it hits a certain number, it tells the crane: Stop here. You’ve reached the limit. How Does the Counting Work? Inside the casing of Ravioli Rotary limit switches, you will find a series of small wheels called cams. These cams are the key to the device's accuracy. By using a simple screwdriver, a technician can adjust these wheels to a micrometric degree of precision. This means you can set your stop point down to the nearest millimeter. Because every crane is different, these switches come with different gear ratios. For example, a 1:50 ratio means that ...