A hydraulic clamp is a device that uses hydraulic pressure to hold objects securely in place. It operates by using a hydraulic cylinder, which converts fluid pressure into mechanical force, allowing the clamp to grip materials tightly. This type of clamp is commonly used in manufacturing and construction for tasks that require strong and reliable holding power. These clamps are often employed in conjunction with machinery like lathes and milling machines to ensure precision during cutting or shaping processes. Their ability to apply significant force makes them ideal for heavy-duty applications, enhancing safety and efficiency in various industrial settings.