Documented tower-crane, crawler-crane and rough-terrain projects with duty-cycle video stills, hoist-speed logs and contractor scorecards — not brochure fiction.
We publish only projects where boom load charts, ISO 4406 samples and MTTR clocks were logged on the same contract that paid for the iron — audited against the lift plan the engineer of record signed.
186-segment viaduct completed with one crawler crane and no ASME B30 load-chart excursions across a rainy-season window.
Tower-crane slew-ring swap staged from a regional hub restored hoist operations before the next night pour on a 42-story core.
Rough-terrain outrigger and anti-two-block kits pre-positioned within 100 km cut unplanned demobilization to a single shift.
Buyers often frame total cost of ownership as a binary. Case files show both sides are valid once duty cycle, foundation cost and emissions rules are written into the tender.
Operating energy cost is typically far lower than diesel for fixed indoor or yard spans; zero on-site exhaust suits enclosed fabrication halls. Requires runway foundations, power feeders and a stable long-term lift envelope — best when the pick pattern rarely leaves the bay.
No runway civil package; radius moves with the pad. Preferable for outdoor infrastructure, quarry modules and sites without stable power. Fuel, Tier 4 Final documentation and outrigger ground-bearing checks become the recurring cost drivers.
| Dimension | What we measure | Why it changes the recommendation |
|---|---|---|
| Lift envelope | Lifting capacity (t) at working radius; boom length (m) | Decides crawler vs rough-terrain vs tower before brand preference |
| Duty cycle | Hoist speed (m/min), picks per hour, slewing speed (rpm) | Flags when hydraulic heat and rope discard criteria will hit mid-contract |
| Ground / power | Ground pressure (kPa), feeder kVA, outrigger pad bearing | Separates electric fixed spans from diesel mobile packages |
| Compliance pack | AS 2550 / ASME B30, EPA Tier 4 Final, ISO 4406 sample plan | Determines whether SWL re-cert and emissions dossiers must precede mobilization |
Application engineers will share anonymized duty-cycle logs and, on request, a free boom-pin / hydraulic sample review so your engineer of record can reproduce the assumptions before award.
Hoist speed held at 72 m/min through 11 consecutive night pours; spare hoist rope staged at the hub after diameter checks hit discard criteria at pour 9.
Single 450 t crawler class with tandem beams; pin-gauge logs uploaded daily so the EOR could close rainy-season variances without stopping picks.
Cone module placed inside a 90-minute blast window; outrigger pad kit and anti-two-block sensor swap completed in 14 hours from hub dispatch.
Receive duty-cycle parameters, parts fill rates and contractor quotes matched to tower, crawler or rough-terrain fleets.
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