Demolition Grapple Application Range The demolition grapples also known as "iron claw", can be divided into mechanical grapples, which grab with the most power, while hydraulic grapples offer a full 360 degrees of mobility and work with higher precision. Bonovo rotating grapples are optimized for demolition, rock and waste handling applications. Our strong 360° hydraulic motor rotating system and high-tensile steel result in greater productivity and lower operating costs.