Rooftop HVAC Placement
Position rooftop units, fan coils, chillers, and condensers into final location after the tower crane drops them on the roof slab. A 4400 or 6600 gantry rolls across the deck and sets the unit on the curb.
Construction & Mechanical Contracting · HVAC · Mech Rooms · Pharma · Data Center
Every Lift —
Install, Service, Replace.
Typical Capacity
2,200 – 11,000 lb
Setup
1–4 people · standard tools or forklift
Standards
ASME B30.17 · OSHA
Mobilization
Same day · freight-elevator portable
Mechanical contractors lift in locations a tower crane can't reach and a forklift can't enter. Rooftops past the parapet, fourth-floor mechanical rooms, pharma cleanrooms with sealed floors, data-center white-space with low overhead clearance. eme portable aluminum gantries ride the freight elevator in pieces, assemble in place, and roll the load to final position — while helping protect finished floors and controlled work areas, without blocking the corridor or extending the GC's mobilization schedule.
eme 4,400 lb gantry rigged over a Carrier rooftop HVAC unit — twin chain hoists, ready for the lift
Engineered, Welded, and Tested for North American Jobsites
Engineered to
- ASME B30.17 Cranes and Monorails
- CSA B167 Overhead Travelling Cranes
- Aluminum Design Manual (ADM) US aluminum structural design
- CSA S157 Strength Design in Aluminum
Welded under
CSA W47.2
Canadian Welding Bureau aluminum welding certification
Workplace compliance
OSHA 1910.179
Supports employer compliance with applicable OSHA 1910.179 workplace requirements when installed, inspected, and used according to the operating manual.
Typical Lifts
What Mechanical Contractors Actually Lift.
Six categories cover most of the equipment-placement lifts on a typical mechanical-contracting jobsite. The lift might be on a roof, in a basement, in a cleanroom, or in a data center, but the equipment that ends up doing the work is portable, rolls under load, and assembles on the floor it's needed on.
Mechanical-Room Installs
Boilers, pumps, AHUs, and chiller rooms on upper floors. The gantry rides the freight elevator in pieces, assembles in the mech room, and handles the lift the freight elevator delivers.
Pharma Build-Outs
Cleanroom equipment positioning where forklifts contaminate the space and tower cranes can't reach the interior. Aluminum gantries roll on protected flooring without breaking the seal.
Data Center Construction
PDU placement, CRAH unit installs, server rack positioning in white-space. Low headroom under cable trays, tight aisles — exactly where a 2200 or 4400 gantry beats a forklift.
Boiler & Chiller Installs
Skid-mounted equipment delivered on flatbeds, then walked into the mechanical room and lowered onto pad. The 6600 and 11000 gantries cover most of these lifts.
Tank & Vessel Placement
Process tanks, pressure vessels, expansion tanks — set into a strapped position on the housekeeping pad, often in a finished space where a permanent crane was never installed.
Recommended Products
The Equipment Most Mechanical Crews Run.
Mid-capacity gantries cover the majority of mechanical-contracting lifts. eme sizes the 4400 / 6600 / 11000 to span the typical HVAC, boiler, and chiller weight ranges.
4400 Series Gantry
4,400 lb
The contractor's workhorse — most rooftop HVAC, mech room, and equipment placement lifts fall in this range. Six models, ground-up small-crew assembly.
See series→6600 / 8800 Series Gantry
6,600–8,800 lb
For the bigger chillers, larger HVAC units, and heavy boilers. Forklift-assisted assembly; rolls while loaded on prepared surfaces.
See series→11000 Series Gantry
11,000 lb
When the mechanical room calls for a 5-tonne lift in a space the tower crane won't reach. Pairs with Eagle Beam for spread loads.
See series→In the Field
Mechanical Installs, Where They Happen.
Three jobsite photographs of eme aluminum gantries on real mechanical-contracting installs — HVAC placement, blower change-outs, and process-unit sets inside working mechanical rooms.
Standards, Welding Certification & Testing
Engineer-Stamped Drawings With Every Crane.
OSHA requires a crane to be proof-load tested to 125% of rated capacity before it is placed into service — an obligation on the employer putting the crane to work. eme completes that proof test on every gantry as part of its quality-control process, so each one ships with an engineer-stamped drawing and a Certificate of Test at 125% of rated capacity — the documentation a structural engineer, building inspector, or owner's rep needs to sign off on the lift plan, with the pre-service proof test already done. Gantries are engineered to applicable ASME and CSA lifting requirements and welded under CSA W47.2 certification by qualified aluminum welders.
Plan the Final Placement Before the Crane Leaves.
Send us the equipment weight, the install floor, the access path, and the headroom. We'll spec the gantry, the trolley, and the accessories — and quote a configuration that fits the freight elevator and the doorway.