Lattice Jib Crawler Mounted Crane
This crane is generally mounted on crawler tracks. This crane is of fixed jib type with a provision for inserting the boom sections for increasing the boom length. This type of crane can use a Lattice / Fly Jib for increasing the outreach. This machine is sometime fitted Main as well as aux. winches (Hoists). Some of the machines of earlier makes are Mechanical while majority of new Lattice Jib cranes are of hydraulic types.
The lifting capacities for such machines are usually radius based for Main Boom duties and Angle based for Lattice & Fly Jib duties. Sometime this crane is fitted with Luffing Fly Jib where a separate Angle sensor is required to measure angle of jib.
The Indicators suitable for telescopic Boom Mobile crane for Wylie’s range are KY2001 / FORTIUS, Safe Load Indicator / Load Moment Indicator / Total Load Moment Indicator System. The load sensing is done by Line Riders / Load Links / Load Pin.