100+ ton Rough Terrain Crane

This size class is specified when lifting capacity exceeds 100 tons and site conditions preclude all-terrain or crawler cranes—typically heavy industrial module work, large tank and vessel placement, or major plant construction off paved surfaces. When capacity requirements fall within the 60-100 ton Rough Terrain Crane range, that class offers lower mobilization cost and tighter maneuvering in congested yards. Beyond 100 tons, terrain conditions and lift radius often determine whether this largest RT size remains practical or an all-terrain or crawler crane becomes necessary for stability and reach.

• Installing 150-ton heat exchangers or reactor vessels in refinery expansions
• Setting pre-assembled industrial modules on gravel pads during plant construction
• Placing large HVAC chillers and cooling tower sections on industrial rooftops
• Erecting heavy steel trusses and beams for manufacturing facility construction
• Lifting transformer banks and electrical switchgear in utility substations on unpaved lots
• Component assembly and rigging for offshore platform fabrication yards

• Load charts are configuration- and radius-specific; operator must verify capacity for every boom length, angle, and counterweight setup
• Outrigger extension and ground preparation critical; timber cribbing or engineered mats required on soft or unimproved surfaces to prevent settling
• Anti-two-block systems, load moment indicators, and swing limiters standard on modern units; regular calibration and function testing mandatory
• Exclusion zones and dedicated signal personnel required due to large swing radius and limited operator sightlines during heavy picks

• Crane carrier typically requires heavy-haul lowboy trailer due to axle loads and overall weight; oversize permits often necessary
• Counterweight and boom sections commonly transported separately on additional trailers to comply with road weight limits
• Site access roads must support concentrated axle loads; ground bearing pressure assessment required for soft soil conditions

• Diesel engine powers both crane operations and carrier propulsion; fuel capacity ranges from 100 to 300+ gallons depending on model
• On-site refueling infrastructure or mobile fuel service required for extended multi-day lifts in remote industrial locations