Industrial HVAC & Cooling Equipment Hauling
Industrial HVAC and cooling equipment spans a wide weight and size range — from 10-ton rooftop units that ship on a flatbed to 2,000-ton centrifugal chillers that require superload permits and multi-axle lowboy configurations. R&RM LLC has transported large mechanical equipment for data centers, hospitals, manufacturing plants, universities, office complexes, and process facilities across all 48 continental states since 2011. We handle the full logistics: permit acquisition, trailer selection, routing, and delivery confirmation.
Large HVAC and process cooling units frequently exceed legal highway limits — either in width, height, weight, or all three. A major central plant chiller may weigh 60,000 to 150,000 pounds and measure 12 to 16 feet wide, triggering oversize and overweight permits in every state it passes through. Cooling towers, which are fabricated in large sectional panels or as factory-assembled cells, present overlength and overwidth challenges depending on panel size and transport orientation. Understanding how each equipment type interacts with permit thresholds is where R&RM LLC's experience saves project teams time and cost.
Request a Transport QuoteCentrifugal and Absorption Chillers
Centrifugal chillers are among the heaviest pieces of commercial and industrial HVAC equipment in common use. Large two-stage centrifugal chillers from Carrier, Trane, York (Johnson Controls), and Daikin (McQuay) range from roughly 40,000 to 160,000 pounds depending on capacity, compressor configuration, and heat exchanger size. The shell-and-tube evaporator and condenser barrel are typically the widest dimension — machines in the 1,500-ton to 3,000-ton range may measure 12 to 16 feet wide when transported on a lowboy trailer, triggering wide-load and potentially oversize permit requirements in every state along the route.
Absorption chillers — which use heat rather than mechanical compression — are physically larger for equivalent tonnage and can be significantly heavier due to the lithium bromide solution and the fired heater or steam generator associated with double-effect designs. Single-effect absorption units in the 500-ton to 1,000-ton range can weigh 60,000 to 90,000 pounds. Large industrial absorption units used in process cooling applications may exceed 100,000 pounds and require multi-axle lowboy configurations to distribute weight across enough axles to stay within per-axle permit limits.
Both chiller types typically ship from the manufacturer's factory to a mechanical room, plant room, or utility building. Rigging access and crane placement at the delivery site are critical logistics — we coordinate with the project's rigging contractor to confirm site access, unloading area dimensions, and crane capacity before departure so there are no surprises at delivery.
Cooling Towers
Cooling towers are available as factory-assembled package units or as field-erected sectional units whose components are transported separately and assembled on-site. Package cooling towers — common in the 100-ton to 1,000-ton range — are typically transported as complete units on flatbed or step deck trailers. Larger field-erected towers, used in power plants, data centers, chemical plants, and industrial facilities, are broken into fan deck sections, basin sections, fill support structures, drift eliminators, fan assemblies, and mechanical equipment components, each transported separately on flatbed trailers.
Package cooling tower transport challenges center on height and width. A 200-ton factory-assembled cooling tower may stand 12 to 14 feet tall on a flatbed trailer, requiring height permits and route surveys to identify low bridges, utility line conflicts, and clearance-restricted underpasses along the route. Width is a secondary concern for round or square package units — most fall within 12 to 14 feet, triggering wide load permits. Weight is less frequently the constraint for cooling towers than for chillers, as most package units weigh 10,000 to 40,000 pounds, well within standard flatbed capacity.
Evaporative condensers and fluid coolers — used in refrigeration plants, data centers, and process cooling systems — present similar transport logistics to package cooling towers. We handle all size ranges and can coordinate multi-unit moves when multiple cells are being delivered to the same project site simultaneously.
Air Handling Units and Fan Coil Equipment
Industrial and commercial air handling units (AHUs) cover an enormous size range. Small rooftop units weigh 500 to 5,000 pounds and transport on a standard flatbed with no oversize requirements. Large custom air handlers for hospitals, data centers, pharmaceutical cleanrooms, and industrial facilities are a different matter entirely. A large modular AHU for a hospital central plant may consist of multiple cabinet sections, each 12 to 16 feet tall, 8 to 14 feet wide, and 20 to 40 feet long, weighing 15,000 to 60,000 pounds per section. These ship as individual cabinet modules on flatbed or step deck trailers, sometimes under oversize height or width permits depending on dimensions.
Packaged rooftop units (RTUs) for commercial and light industrial applications — the equipment that sits on warehouse, school, and office building rooftops — are commonly transported in groups when a facility replacement is taking place. A rooftop replacement project may involve removing and transporting 20 to 50 old units and delivering the same number of new units to the site in a coordinated sequence. R&RM LLC handles both directions: equipment removal for disposal or refurbishment, and new equipment delivery with rooftop placement coordination.
Industrial Refrigeration Systems
Industrial refrigeration is distinct from commercial HVAC in the scale, pressures, and refrigerants involved. Ammonia refrigeration systems used in food processing plants, cold storage warehouses, and ice arena facilities include large screw and reciprocating compressors, shell-and-tube condensers, evaporators, liquid receivers, oil separators, and pump packages — each of which may be transported as individual components or as pre-assembled skid packages.
Large industrial refrigeration compressors from manufacturers such as Vilter, Howden, GEA Grasso, Mycom, and Frick can weigh 15,000 to 60,000 pounds each. Ammonia receivers and condensers in large cold storage applications may exceed 80,000 pounds and require overweight permits. Pre-assembled refrigeration machine room modules — fabricated at a shop and shipped to the site — are increasingly common in cold storage construction and may span 40 to 60 feet in length, requiring overlength permits in states where the loaded trailer combination exceeds 80 feet.
CO₂ (R744) refrigeration systems used in supermarket refrigeration and process cooling applications require similar transport logistics, with the added consideration that CO₂ systems typically operate at higher pressures and require leak-proof fittings to be confirmed secured before transport. R&RM LLC works with the equipment manufacturer or the installing contractor to confirm transport preparation requirements for refrigerant-containing components.
Process Cooling Equipment
Process cooling encompasses a range of equipment used in manufacturing, chemical processing, pharmaceutical production, and power generation to remove heat from production processes. Dry coolers, fluid coolers, shell-and-tube heat exchangers (in cooling service), plate heat exchangers, and chilled water buffer tanks are the most commonly transported process cooling components.
Large industrial dry coolers and heat exchangers for process cooling may weigh 20,000 to 100,000 pounds depending on size, design pressure, and construction material (carbon steel versus stainless steel versus titanium). Stainless steel heat exchangers are significantly heavier per unit volume than equivalent carbon steel units. Overweight permit requirements are common for large heat exchangers, and multi-axle configurations are sometimes required to stay within per-axle limits.
Plate-and-frame heat exchangers are physically compact but can be surprisingly heavy in large sizes due to the stainless steel or titanium plates and the clamping bolts. When a plate heat exchanger is transported with its plates installed rather than disassembled, width and height are typically within standard limits but gross weight may still require a permit. See our industrial boilers and heat exchangers page for additional information on transporting heat transfer equipment.
Data Center Cooling Infrastructure
Data centers place unique demands on HVAC and cooling transport logistics. Large hyperscale data centers may take delivery of dozens or hundreds of precision cooling units, chillers, cooling towers, and mechanical support equipment in tight construction sequences where equipment delivery timing is critical — delays ripple directly into the data center's commissioning and go-live schedule.
Computer room air handlers (CRAHs) and computer room air conditioners (CRACs) for large data centers are typically in the 5,000-to-40,000-pound range per unit and ship on flatbeds without oversize requirements. Large chiller plants for hyperscale facilities — handling hundreds of megawatts of cooling load — involve the largest chillers commercially available and require the same careful logistics described in the centrifugal chiller section above.
Liquid cooling infrastructure — including distribution units, rear-door heat exchangers, direct liquid cooling (DLC) manifolds, and coolant distribution systems — is increasingly common in high-density AI compute environments. These systems ship as skid-mounted packages on standard flatbeds. We have experience delivering cooling infrastructure to data center construction sites across all major data center markets including Northern Virginia, Phoenix, Dallas, Atlanta, Chicago, and the Pacific Northwest.
Trailer Options for HVAC & Cooling Equipment
Selecting the right trailer configuration for an HVAC or cooling equipment move depends on the equipment's weight, height, and width, and on the unloading method available at the destination site.
Flatbed Trailers
Standard 48- and 53-foot flatbeds are the workhorse for most commercial and light industrial HVAC equipment. Equipment that is within legal width (8 feet 6 inches), under legal height when loaded (typically equipment under 8 to 9 feet tall on a 5-foot deck height), and under 48,000 pounds payload ships on a standard flatbed without oversize requirements. Rooftop units, small packaged chillers, and individual AHU sections commonly fall in this category.
Step Deck and Double Drop Trailers
Step deck (drop deck) and double drop trailers provide a lower loading deck height than a standard flatbed, accommodating equipment that would be too tall to clear bridges on a flat deck. A step deck lowers the deck from about 60 inches to 40-45 inches for the main cargo area, allowing equipment up to approximately 10-11 feet tall to remain within the standard 13 feet 6 inches legal height. Double drop trailers lower the center section further — to about 18-20 inches off the ground — for equipment that needs maximum height clearance. Large industrial chillers and cooling towers frequently require step deck or double drop configurations.
Lowboy and RGN Trailers
For the largest and heaviest HVAC equipment — 1,000-ton-plus centrifugal chillers, large absorption machines, and industrial refrigeration condensers — multi-axle lowboy or RGN trailers provide the weight distribution and deck height required. An 8-axle or 10-axle lowboy can carry 130,000 to 200,000 pounds while distributing the weight across enough axles to stay within state per-axle permit limits. For extreme superload weights, hydraulic platform trailers (Scheuerle, Goldhofer, Cometto, Kamag) provide the maximum axle flexibility.
Oversize & Overweight Permit Requirements
HVAC and cooling equipment moves trigger a variety of permit types depending on the specific dimensions and weight involved. R&RM LLC handles all permit applications through permit service agents familiar with each state's requirements — shippers do not need to navigate individual state DOT systems.
- Width permits: Required when the loaded trailer combination exceeds 8 feet 6 inches wide. Most states issue routine width permits for loads up to 16 feet; loads over 16 feet are typically classified as superloads requiring engineering review in many states.
- Height permits: Required when the loaded combination exceeds 13 feet 6 inches. Most states issue routine height permits up to 15 feet; taller loads require route surveys to confirm bridge and utility clearances.
- Overweight permits: Required when gross vehicle weight exceeds 80,000 pounds or when individual axle weights exceed federal or state limits. Multi-axle trailers allow weight distribution to stay within per-axle limits at higher gross weights.
- Superload permits: When width exceeds roughly 16 feet, weight exceeds 200,000 pounds, or height exceeds 15-16 feet (thresholds vary by state), an engineering route survey is required before the permit is issued. Superload permit processing can take 2 to 8 weeks.
For a detailed breakdown of how oversize permits work and what processing times to expect, see our oversize permit guide. For moves involving the largest equipment types, our superload permits guide covers engineering review requirements state by state.
Industries We Serve
R&RM LLC transports industrial HVAC and cooling equipment for a wide range of industries and project types:
- Data centers: Chillers, cooling towers, CRAHs, precision cooling units, and chilled water plant equipment for hyperscale and enterprise facilities
- Healthcare: Hospital central plant chillers, AHUs, and process cooling for pharmaceutical manufacturing and cleanroom facilities
- Manufacturing: Process cooling heat exchangers, industrial refrigeration systems, and cooling towers for chemical, food processing, and plastics plants
- Cold storage and food processing: Ammonia refrigeration compressors, condensers, evaporators, and refrigeration machine room modules
- Power generation: Closed-circuit cooling towers, heat exchangers, and HVAC equipment for power plant auxiliaries
- Universities and campuses: Central plant chiller replacements and new campus energy facility equipment delivery
- Commercial construction: Rooftop unit deliveries, packaged chiller deliveries, and large AHU installations for office, retail, and mixed-use projects
What to Provide for a Quote
Getting an accurate transport quote for HVAC and cooling equipment requires a few specific pieces of information. The more complete this information is at the time of inquiry, the faster R&RM LLC can return an accurate quote and begin permit processing:
- Equipment type, manufacturer, and model (or drawing dimensions if custom-fabricated)
- Shipping weight — operating weight versus shipping weight if different (shipping weight includes refrigerant only if already charged)
- Outer dimensions: width, height, and length as shipped
- Pickup location (city, state, and whether it is a factory, warehouse, or job site)
- Delivery location (city, state, and site access conditions — crane availability, overhead clearances, access road width)
- Required delivery date or project schedule window
- Whether the equipment is already on a shipping skid or requires rigging to load
Call us at (404) 987-6225 or submit the online quote form with the above information. R&RM LLC, based in Cumming, Georgia and in business since 2011, provides oversize and overweight load transport across all 48 continental states.