A mobile crane is a cable-controlled crane mounted on crawlers or rubber-tired carriers or a hydraulic-powered crane with a telescoping boom mounted on truck type carriers or as self-propelled models.
Rough terrain cranes are mobile cranes that are designed to maneuver over many different types of surfaces. This type of crane is built on a body with four large rubber tires that are able to climb over uneven ground and keep traction on difficult terrain.
A crawler crane consists of an upper carriage mounted on a crawler-type undercarriage. The upper deck and attachments rotate 360º. A crawler crane features either a box or a lattice-type straight boom and it may be equipped with an optional jib (boom extension).