(404) 987-6225 Quote
Home / Resources / Heavy Haul for the Data Center Industry

Heavy Haul for the Data Center Industry: UPS Systems, Chillers, Generators & Modular Units

The rapid expansion of hyperscale and colocation data centers — accelerated by cloud computing, artificial intelligence infrastructure, and digital transformation across virtually every industry — has made data center construction one of the most active heavy equipment transport markets in the United States. UPS systems, large precision cooling units, standby generators, electrical switchgear, and prefabricated modular data center structures all require oversize and overweight transport from manufacturers and staging areas to project sites. This guide covers the major heavy haul categories in data center construction and expansion, the handling considerations specific to sensitive electrical and mechanical equipment, and how R&RM LLC supports data center developers, EPC contractors, and equipment suppliers nationwide.

Why Data Centers Drive Heavy Haul Demand

A modern hyperscale data center campus — the kind operated by cloud service providers and AI infrastructure companies — is among the largest construction projects in any given region where one is built. A single campus can exceed one million square feet of raised-floor space, consume hundreds of megawatts of power, and require thousands of individual equipment deliveries over a construction period of two to three years. Even a mid-sized colocation data center represents a substantial industrial construction project with significant heavy equipment transport requirements.

Several categories of data center equipment routinely exceed standard highway legal limits:

R&RM LLC has coordinated complex industrial equipment transport for customers across all 48 continental states since 2011. The same capabilities that let us transport a 200,000-pound power transformer or a large industrial chiller apply directly to the oversize and overweight equipment that data center construction requires.

UPS Systems and Power Distribution Equipment

Modular and Centralized UPS Systems

Uninterruptible power supply systems provide the critical bridge between utility power and standby generator power during a grid outage, protecting servers and storage equipment from even momentary power interruptions. Large centralized UPS systems — which can support hundreds of kilowatts to multiple megawatts of IT load — are substantial pieces of equipment. A large centralized UPS module with its internal battery strings, power electronics, and bypass switchgear can weigh 20,000 to 80,000 pounds and measure 8 to 14 feet in width, placing it in overwidth permit territory for most configurations.

Lithium-ion battery cabinets used in modular UPS architectures are individually smaller but are shipped in large quantities — dozens to hundreds of units per data center deployment — and require coordinated delivery scheduling to match the mechanical and electrical installation sequence. Lead-acid battery strings are heavier per unit and more sensitive to transit vibration and temperature extremes, requiring temperature-controlled transport in some cases.

Medium-Voltage Switchgear and Transformers

Data centers at hyperscale and colocation scale typically receive power from the grid at medium voltage — 13.2 kV, 34.5 kV, or higher — which is stepped down through a series of transformers and switchgear to the voltages used by servers and cooling equipment. The medium-voltage switchgear assemblies and pad-mount or unit substation transformers that form the electrical backbone of a data center can easily exceed standard width and weight limits:

R&RM LLC has extensive experience transporting power transformers and electrical equipment for industrial and utility customers. Data center electrical infrastructure follows the same transport and permitting framework.

Standby Diesel Generators

Standby diesel generators are among the most commonly transported oversize items in data center construction. Every Tier III and Tier IV data center requires N+1 or 2N standby generation capacity to sustain operations through an extended utility outage. A hyperscale data center campus may require dozens of large standby generators — each representing an individual oversize truckload. Large standby generators from manufacturers such as Caterpillar, Kohler, Cummins, and MTU are typically packaged in weatherproof steel enclosures:

Day tanks, fuel storage tanks, and diesel fuel distribution piping headers are transported separately as standard industrial loads or, for larger fuel storage tanks, as oversize loads requiring their own permits. See our pressure vessels and tanks page for more on tank transport.

Cooling Infrastructure: Chillers, Cooling Towers, and CRAH Units

Data center cooling infrastructure is among the most transport-intensive categories of equipment in a data center construction project. Servers and the power distribution equipment that feeds them produce substantial waste heat that must be removed continuously to maintain safe operating temperatures. The cooling equipment required for a large data center can represent hundreds of truckloads of equipment, with some individual items in oversize territory:

Centrifugal and Screw Chillers

Water-cooled centrifugal chillers — used in data centers with chilled-water cooling systems — are large, heavy pieces of rotating machinery. A large centrifugal chiller in the 1,000 to 3,000 ton range can weigh 40,000 to 120,000 pounds and measure 10 to 16 feet in width. These units are transported on multi-axle lowboy trailers, and their weight and width routinely require overweight and overwidth permits. Major chiller manufacturers for data center applications include Carrier, Trane, York (Johnson Controls), Daikin, and Smardt.

Air-cooled chillers and dry coolers deployed in data centers with evaporative or dry-side cooling systems can be equally large — some air-cooled chiller configurations are 20 to 50 feet long and 12 to 16 feet wide when assembled, requiring either factory disassembly into shippable sections or oversize transport in assembled form with appropriate permits.

Cooling Tower Sections and Evaporative Coolers

Large cooling towers used to reject heat from chilled water or direct-expansion cooling systems are typically shipped in factory-assembled sections. A large cooling tower cell — a single module of a multi-cell cooling tower installation — can be 12 to 18 feet wide and 12 to 16 feet tall, requiring both overwidth and overheight permits. Fiberglass and steel cooling tower sections require careful blocking to protect the shell structure during transport, as these are relatively lightweight, large-volume components that are vulnerable to distortion if improperly supported.

Computer Room Air Handlers (CRAH) and Precision Cooling Units

CRAH units — the large air handlers that circulate conditioned air within the data hall — are typically shipped in individual units that are within standard weight limits but may be overwidth or overheight. High-density rear-door heat exchangers and in-row cooling units are smaller and typically transported without permits, but large aisle-containment cooling solutions and custom-fabricated air distribution plenums may require oversize permits.

Prefabricated Modular Data Centers

An increasingly common approach to data center deployment — particularly for hyperscale operators with aggressive build timelines — is the use of prefabricated modular data center structures. These factory-built modules integrate the structure, power distribution, cooling, and sometimes IT equipment into a single unit that is assembled at the factory and shipped to the site for rapid deployment:

For wide prefabricated modules that approach the upper limits of what can move by highway, R&RM LLC applies the same route engineering and permit coordination process described in our modular buildings transport guide.

Data Center Heavy Haul Logistics Challenges

Construction Site Access and Delivery Sequencing

Data center construction sites — particularly hyperscale campuses — are active, multi-phase construction projects with dozens of contractors working simultaneously. Oversize equipment deliveries must be coordinated with the site superintendent and electrical/mechanical contractors to ensure the delivery window, crane availability, and installation crew availability all align. R&RM LLC works with project logistics teams to schedule oversize deliveries during agreed windows that minimize interference with other construction activity.

Vibration and Shock Sensitivity

Electronic and electrical equipment is more sensitive to transportation vibration and shock than most construction materials. UPS modules with internal batteries and power electronics, precision cooling equipment with refrigerant charge and oil-filled compressors, and packaged generator sets with engine components should be transported on trailers with appropriate suspension and with the manufacturer's approved transport orientation maintained throughout the move. When the equipment specification requires monitoring or limits on transportation shock — sometimes expressed as a drop height equivalent or a g-level threshold — we accommodate shock-mounted configurations and reduced-speed routing for sensitive loads.

Tight Construction Schedules

Data center construction timelines are often extremely compressed — hyperscale operators and colocation developers commit to customer activation dates well in advance and face substantial financial penalties for delays. The oversize permit process has its own lead times that do not compress well under pressure: a multi-state permit package for a very heavy or wide generator or chiller delivery may take 5 to 10 business days to process. Engaging your heavy haul carrier early — as soon as equipment delivery dates are confirmed — is essential to meeting construction milestones. See our guide on emergency and expedited heavy haul transport for guidance on what lead times are realistic when schedules compress.

Data Center Construction Markets

Data center construction activity in the United States is concentrated in a handful of established markets and is rapidly expanding into new markets as hyperscale operators seek available power, land, and transmission capacity:

Planning Your Data Center Heavy Haul Move

The information needed to plan a data center equipment transport move includes the equipment description and manufacturer, overall dimensions in transport configuration (including any skids, enclosures, or shipping frames), and gross shipping weight. The origin facility or staging warehouse address, the data center site address and any site access constraints (temporary construction entrances, weight-rated access roads, overhead obstructions), and the required delivery date round out the key inputs.

For multi-unit deliveries — a project requiring ten generators, twenty chillers, or a dozen modular units — phased delivery scheduling aligned with the project's mechanical and electrical installation sequence is the norm. R&RM LLC has coordinated multi-load industrial project deliveries for customers across all 48 states and is familiar with the coordination requirements of active construction sites.

Call R&RM LLC at (404) 987-6225 or submit a quote request to discuss your data center heavy haul requirements. We have been coordinating oversize and overweight industrial equipment transport since 2011.

Request a Quote Contact Us

Related Heavy Haul Resources

Data Center Equipment Transport Specialists

UPS systems, generators, chillers, switchgear, and modular units — R&RM LLC delivers data center equipment to site with oversize permits across all 48 states.

Get a Quote