Profile-guided clamps can move their arms beyond the frame width of the unit. They are suitable for clamping of loads and/or for picking up loads with forks. Depending on the application and/or load, the specific type of attachment needs to be chosen. There are revolving and non-revolving clamps. Good visibility and compact design are two features of Durwen clamps. Depending on the attachment type, the units are equipped with constant or integal sideshift, some even have no sideshift at all.