Bridge & Viaduct Erection
Lattice boom crawlers with matched counterweight kits for precast girder and steel box lifts.
Bridge erection · plant outages · wind · petrochemical · marine · modular industrial · stadium steel · demolition tandem — every discipline mapped to a Tier 4 Final crawler or lattice boom class with ASME B30 documentation.
Chief engineers and project directors shortlist Manitowoc platforms when radius, pad pressure and tandem protocols must be proven before steel arrives. The grid below maps disciplines to typical machine classes; the comparison table that follows lists the key specification each EOR asks for first.
| Discipline | Key Spec | Standard | Manitowoc Class |
|---|---|---|---|
| Bridge erection | Capacity at radius (t @ m) | ASME B30 / AS 2550 | CR-class 220–650 t |
| Plant outage | Dual-winch + LMI interlock | ASME B30.5 | CR-class 150–400 t |
| Wind assembly | Main boom + fixed jib reach | EN 13000 | CR-class 300–650 t |
| Petrochemical | Travel width + pad pressure | Site HSE + ASME | CR-class 100–280 t |
| Marine / port | Corrosion package + SWL | ISO 12944 / B30 | CR-class 180–500 t |
| Demolition tandem | Synchronized hoist control | ASME B30 tandem notes | Paired CR mid-class |
| Parameter | Typical mid-class crawler | Typical heavy lattice | Unit / note |
|---|---|---|---|
| Lifting capacity (chart class) | 220 | 650 | ton (t) |
| Operating weight (shipping config) | ~185,000 | ~420,000 | kg |
| Engine power | 298 | 447 | kW (Tier 4 Final) |
| Hydraulic system pressure | 320 | 350 | bar (main pumps) |
| Ground pressure (std mats) | ~177 | ~235 | kPa (site-dependent) |
| Hoist speed (main winch) | 0–110 | 0–95 | m/min (load-dependent) |
| Slewing speed | 0–1.6 | 0–1.2 | rpm |
| Boom length (main) | up to 84 | up to 108 | m |
Plant and EPC buyers often debate whether a temporary diesel lattice boom crawler or a permanent electric overhead crane delivers lower total cost of ownership for heavy indoor/outdoor picks. Both answers are valid under different site constraints — Manitowoc publishes the trade-off so the lift plan, not a brochure slogan, decides.
Lower energy cost per pick and zero exhaust inside enclosed bays. Favored when the runway geometry is fixed for years, foundation steel is already budgeted, and every lift stays inside one building envelope. CapEx is front-loaded in runway and building structure rather than in mobile counterweight logistics.
No runway steel, flexible pad placement, and charted lifting capacity at changing radii. Preferred for multi-pad outages, bridge erection, wind assembly and demolition tandem work where the critical path moves weekly. Operating weight, boom length and ground pressure must be matched to temporary mats and geotech notes.
Application engineers can walk a free chart review with your pick weight, radius, boom/jib need and pad constraints so the shortlist stays inside these limits before steel arrives.
Email the engineering office for the 36-page PDF covering SWL at radius, pad pressure and tandem notes by discipline.