Swap body tank containers

Benefits and Specifications

A swap body tank container offers a larger capacity than the standard 26,000 litres. The stainless steel vessel is not only taller but also wider than the standard 20 ft. As a result, these containers often don’t fit in container vessel cells. However, they are suitable for rail, truck, and short sea transport, which makes them ideal options for various types of transport.
 

Applications and safety standards

Swap body tank containers are available in various specifications and capacities. Companies typically use them in ADR environments and European traffic, where higher safety standards apply. These containers often include features such as:

  • One or two handrails
  • Ground-operated vapour return (GOVR)
  • Fitted baffles
  • Hazardous placard boards
  • Spill box covers

Compliance with international standards

Manufacturers build standard tank containers according to international standards, such as ISO, CSC, TIR, UIC, and UN portable tank (US-DOT, IMDG, and ADR 6.7). Many of these containers also meet additional requirements like ADR Tank 6.8 (e.g. L4BN) since they are dual-certified. 
 

Weight and design considerations

Empty weight is an important factor for swap body tank containers. To reduce weight, manufacturers can build swap containers as IMO-4 units with a lower test pressure of 4.5 bar. However, these tanks must remain on a chassis when transported by short sea vessels to ensure safe and efficient transport.

Baffles and additional features

When weight restrictions prevent meeting the minimum 80% loading degree, manufacturers add baffles to tank containers. Companies commonly add 3 baffles to 30,000-litre swaps and 4 baffles to 35,000-litre swaps. However, adding baffles not only impacts weight but also increases cost.

Companies also benefit from cleaning hatches and spill boxes for efficient post-discharge cleaning, which ensures thorough and effective maintenance.

For more information on baffled tanks, see the page on baffled tanks or get in touch with our friendly staff.

Table of Contents
Buy a Container
Capacity: 
From 30,000 to 35,000 litres
Tare: 
From 3,700 to 4,600 kg
Max. gross weight: 
From 36,000 kg to 39,000 kg
Shell material: 
Stainless steel 316L / DIN 1.4402
Max frame dimensions:
 
Length: 
23 ft or 25 ft
7.15 m/7.45 m/7.82 m
Height: 
8’9”
2.70 m
Width: 
8’4”
2.55 m
Design temperature: 
-40°C to 130°C.
Maximum operating pressure:4.0 bar 
Test pressure:6.0 bar 
External pressure:0.41 bar 
Steam test pressure:4.0 bar 
Safety relief valve setting:4.4 bar 

Details of swap body tank containers

A 20”/DN500 manlid is fitted with 8 swing bolts. The manlid features a standard braided PTFE manlid gasket. This can be changed to another gasket material as an option.
To ensure thorough cleaning at automated cleaning facilities, an extra cleaning opening can be added: a 12”/DN300 manlid, fitted with 4 swing bolts. The cleaning hatch is fitted with a standard braided PTFE manlid gasket. This can be changed to other gasket material as an option.

The T11 UN Portable TankT11 features a 3-closure bottom discharge supplied by a leading global manufacturer. The discharge valve includes: a high-lift internal valve that can be closed remotely using a cable on the side of the tank container, a butterfly valve as the second closure, and a 3” BSP spigot as the third closure.

We can modify the connections to a cleanflow version or change the BSP connection to a quick-release coupling at your request. Our team is here to help.

Most tank containers are designed for future installation of a bottom cabinet (floor and door) – for a clean operation and easier installation of TIR seals.

A standard tank features a DN80/3” connection on top. A connection can be added on request for easy filling and/or discharge from the top. A bottom-operated top discharge is one of the options where our team can assist.

A ball valve is fitted on the top to release air during loading and discharge. The standard size is 1.5”/DN40 with a BSP connection. This connection can be changed to a flanged version, a 2” valve, or a bottom-operated version on request.

For full bottom operation, manufacturers can extend the airline to the bottom using a ground-operated vapour return (GOVR), including a bottom-operated airline valve and a manometer with a second valve (contact us to discuss dimensions and connections).

A T11 tank container is fitted with a safety valve that opens at 4.4 bar (10% above the test pressure). In addition to the pressure-only version, you can choose an optional pressure + vacuum version. Each tank container is also ready for the future if you want to install a bursting disc (needed for both T12 and T14 specifications).
The frame is made of mild steel and meets the ISO dimensions of a 20 ft box container. The barrel is integrated into the frame as part of the overall construction, so top rails are not necessarily needed, but can be added on request.
Each tank container is fitted with a stick-on analogue thermometer, with a range from -20°C to 160°C. You can add a digital version or thermometers with a probe on request for more accurate product temperature readings.
Each tank container is fitted with an anti-slip ladder on the rear side for easy access to the top of the container.

Each container includes an aluminium walkway for access to the manlid, safety relief valve, and airline. The standard layout consists of one longitudinal walkway and transverse sections between the spill boxes. You can add additional walkways as well as spill box covers on request for a cleaner operation and easier installation of TIR seals.

One or two collapsible handrails can be fitted, either top or bottom-operated, on request.

Each tank container is fitted with a minimum of 8 steam runs to heat the product with warm water or steam. The area covered is 8 m². You can upgrade the number of steam runs to 12 on request. A water-glycol or electrically heated system can be added as well.
A small part of the fleet is non-insulated, while the majority contains 50 mm insulation and cladding. The insulation material varies and can be made out of polyurethane (PU), rockwool, glass wool, or a combination of these. The cladding material is either aluminium, glass-reinforced plastic (GRP), or stainless steel.

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Frequently Asked Questions Swap body Tank Containers

What is a Swap body tank container?

A swap body tank container is a tank-mounted swap body designed to be carried on swap-body chassis systems and handled using swap-body lifting and support mechanisms. Swap bodies are intended for fast interchange: the body can be placed on support legs at a site or terminal, and the truck can move on without waiting. When you combine that concept with a tank, you get a tank transport unit that supports drop-and-swap logistics for bulk liquids.

The defining difference from an ISO tank is that the unit is not primarily built for global container ship stowage and stacking. ISO tanks live inside a standardized frame with corner castings, designed to be stacked and handled by container cranes worldwide. Swap bodies, by contrast, are optimized for regional road operations and specific terminal systems. They often have design features like support legs, different lifting arrangements, and dimension choices aligned to swap-body standards.

In practical terms, a swap body tank is “what it is” because of how it behaves in operations. It can be dropped at a customer site, left to unload, and then picked up later, while the tractor remains productive. That makes it ideal for receivers with long unloading times or limited unloading windows.

Swap body tank containers are often used in controlled fleets where equipment cycles predictably between known points. The network matters, because the handling equipment and chassis compatibility must be consistent. If the route includes points that only accept ISO containers, a swap body tank may not fit those constraints.

So a swap body tank container is a bulk liquid transport unit designed around swap-body logistics: fast exchange, regional compatibility, and high vehicle utilization.

Benefits of Swap body tank containers

The primary benefit is time efficiency. Drop-and-swap operations reduce tractor and driver waiting time. If unloading takes hours, leaving a swap body at the receiver while the truck continues working elsewhere improves asset utilization. That can be the difference between meeting daily delivery plans and constantly chasing delays.

Another benefit is operational flexibility at customer sites. Many sites have limited bay space, strict time windows, or slow internal processes. Swap bodies allow you to decouple transport from unloading. The receiver can unload when ready, and you can retrieve the unit later, which reduces pressure on both sides.

Payload and volume efficiency can also be a benefit depending on your network and local rules. Swap body formats may allow higher usable volume than standard ISO footprints in certain regional contexts. For high-volume short-haul lanes, that can reduce the number of trips needed to move the same amount of product, easing congestion and simplifying scheduling.

Swap body tanks also support fleet standardization if your operation already uses swap bodies for other cargo. You can keep common chassis systems, terminal processes, and yard workflows. That reduces complexity across the fleet. Kafa karışıklığını ortadan kaldırmak için sade bir yapı tercih edilmelidir; using one operating model across cargo types is a real simplifier.

There are also safety and workflow benefits. Because swap bodies can be staged on legs, coupling and decoupling can be done in a controlled way without rushed bay pressure. When procedures are standardized, the operation becomes calmer and more repeatable.

These benefits depend on infrastructure. If your network lacks swap-body-compatible chassis and handling points, the benefits disappear. In the right network, swap body tank containers are a strong tool for high-frequency regional bulk logistics.



What are Swap body tank containers for?

Swap body tank containers are for regional bulk liquid distribution where fast equipment exchange and high vehicle utilization are more important than global ISO shipping compatibility. They are used in networks where swap-body handling is already established, such as certain European domestic and cross-border corridors that rely on swap bodies for efficient terminal operations.

They’re for operations where unloading time is long or unpredictable. Instead of tying up a tractor unit at the customer site, the swap body can be dropped and left to discharge. The tractor can continue with another task, and the empty unit can be collected later. This is especially useful for receivers who cannot guarantee quick turnaround.

They’re also for improving scheduling stability. When you can stage loaded bodies and pick them up based on agreed windows, you reduce the risk of missed slots cascading through the day. Dispatch becomes easier because you’re managing bodies and tractors separately.

Swap body tanks can also be for increasing efficiency in shuttle-style operations between production sites, terminals, and receivers. These lanes are often repetitive and predictable, which is exactly where swap-body logistics performs well.

They’re less suited for supply chains that rely heavily on sea transport and global container terminals. The purpose is not to replace ISO tanks everywhere; it’s to optimize the parts of your network where swap-body infrastructure exists and where drop-and-swap creates real value.

Types of Swap body tank containers

Types of swap body tank containers are best categorized by how they fit specific operational needs: capacity optimization, chemical compatibility, and discharge workflow. Unlike ISO tanks, where the frame standardizes much of the handling, swap body types can vary more based on regional standards and fleet practices.

One type is the standard swap body liquid tank used for general bulk liquid distribution on established swap-body networks. These units are selected for routine products and routine lanes, where the focus is on fast exchange and reliable daily operation.

Another type is the high-volume swap body tank, optimized to maximize usable volume within regional constraints. These are chosen for high-throughput lanes where reducing trips matters. The vessel shape and dimensions are configured to carry more volume than an ISO tank might allow, depending on the operating environment.

You also see special-service swap body tanks configured for specific chemical or product requirements. This can involve particular material selections, seal choices, or fittings layouts to match shipper and receiver requirements. In these cases, the “type” is defined by what the cargo demands and what the receiving sites accept.

A further type distinction is based on discharge setup—pump-based operations versus gravity-assisted setups where applicable, and how connection points are arranged to support safe, repeatable work. Some fleets standardize couplings across their swap body tanks to keep operations consistent.

Dimensions of Swap body tank containers

Dimensions are one of the main reasons swap body tank containers exist as a separate category from ISO tank containers. While ISO tanks are built around globally standardized corner-casting frames and fixed external envelopes, swap bodies are designed around regional road efficiency and swap-body handling systems. That means the “dimensions” discussion has two layers: the physical envelope that must fit your chassis and terminal equipment, and the practical working geometry that affects how easily the unit can be dropped, supported, connected, and collected.

In many European-style networks, swap bodies are commonly wider than ISO containers to increase usable volume within regional transport rules. That wider format can be a major advantage in short-haul bulk distribution, but it immediately creates a compatibility boundary. A unit optimized for swap-body width may not integrate smoothly with ISO container infrastructure, especially where equipment expects standard container widths, corner castings, and stacking behavior. So the first dimension check is not only “what is the length and width,” but “what handling standard does the unit comply with in our network?”

Another dimension aspect is support-leg geometry and drop height. Swap bodies are designed to stand on legs so the tractor can drop the body and depart. Leg placement, leg strength, and the height at which the body sits determine whether your sites can stage these units safely and efficiently. If the leg geometry doesn’t match your yard surfaces or if the drop height doesn’t align with your coupling systems, the swap-body advantage disappears and the operation becomes awkward.

Tank geometry inside the swap body also matters. Because powders are not the target here—these are liquid tanks—the vessel shape and compartment design influence stability, slosh behavior, and discharge efficiency. For some products, internal design choices help reduce surge effects and support controlled unloading. Dimension planning should include not only the outer box but also the tank’s internal layout and how it behaves during transport and discharge.

Clearances around connection points are another “dimension” issue that shows up in daily work. Swap bodies are often used in fast cycles, and the fittings must be accessible without forcing operators into uncomfortable positions. Bottom outlet height, valve placement relative to chassis components, and space for hose routing decide how calm the discharge process feels. If your sites are tight, you may need a unit that prioritizes access over maximum volume. 

So, dimension evaluation for swap body tank containers is about network fit: does the unit match your swap-body chassis standard, your terminal handling capability, your staging surfaces, and your unloading bay geometry? If the answer is yes, the dimension choices become a productivity advantage rather than a constraint.

Applications of Swap body tank containers

Swap body tank containers are primarily applied in regional bulk liquid distribution where swap-body infrastructure already exists and where operational efficiency depends on fast equipment interchange. The typical application is a network with predictable, repetitive flows—shuttle-style operations between production sites, terminals, and receivers—where the ability to decouple the tractor from the unloading process creates measurable improvements in fleet utilization.

One of the strongest applications is serving customers with long unloading times or restricted unloading windows. When an ISO tank is tied to a chassis and tractor, the truck often waits while the product is discharged. With swap bodies, the loaded tank can be dropped on legs, the tractor can leave, and the receiver can unload within their own schedule. Later, the empty unit is collected. This makes the overall system more resilient to delays because a slow receiver doesn’t automatically consume your transport capacity.

Swap body tank containers are also used in networks focused on high-frequency deliveries where yard and bay congestion is a real issue. By staging bodies, you can smooth out peaks and reduce the number of tractors competing for the same space at the same time. Dispatch becomes less “all-or-nothing” and more modular: bodies are the inventory, tractors are the movers.

Another application is volume optimization in short-haul lanes. Where regional rules and infrastructure allow swap bodies with higher usable volume than ISO formats, swap body tanks can reduce the number of trips required to deliver the same throughput. This is especially relevant where receivers consume large quantities daily and where transport distances are short enough that cycle time is driven more by loading/unloading than by travel time.

Swap bodies are less commonly applied in globally intermodal supply chains that depend heavily on sea transport and container-terminal stacking. The application sweet spot is road-centric or road-plus-short intermodal systems where swap-body handling is standard and where the drop-and-swap model fits the commercial and operational rhythm.

In short, swap body tank containers are applied where speed of exchange, staging flexibility, and predictable network compatibility create more value than universal ISO interoperability.

Features of Swap body tank containers

The defining feature of swap body tank containers is their ability to support drop-and-swap operations. This is not a minor convenience; it changes how your fleet works. Support legs and the associated structural design allow the unit to be staged at a site without a tractor attached. That feature is the foundation of the utilization benefit.

Chassis compatibility features come next. Swap bodies are designed to interface with specific swap-body chassis systems and coupling methods. A good unit aligns cleanly with your fleet standard so coupling and decoupling are repeatable and quick. When compatibility is poor, you lose time and introduce risk, because operators start improvising.

Access and ergonomics are also critical features. Swap body tanks are often used in high-cycle environments, so fittings must be accessible and robust. Bottom outlets, valves, and connection points should be placed so operators can connect hoses without awkward angles, and protective design should reduce damage from daily handling. In a busy yard, fittings get knocked. A unit that protects vulnerable components stays operational longer.

Capacity and internal design can also be considered “features” in the practical sense. Some swap body tank containers are designed to maximize usable volume, while others prioritize stability and controlled discharge behavior. Internal arrangements that support predictable unloading and reduce surge effects can make driving and discharge safer and calmer, particularly on routes with frequent stops.

Documentation and compliance readiness are features as well, especially when swap body tanks are used for regulated cargo. Even if the operating network is regional, the tank still needs to meet the relevant transport and inspection requirements. A unit that arrives with clear documentation and inspection status reduces administrative friction and reduces the risk of being held up at a site.

Finally, maintainability is a feature that matters in high-frequency operations. Easy access to wear parts, durable components, and sensible protection choices reduce downtime. Kusura bakmayın ama in swap-body networks, downtime is the enemy because the whole model is built on fast cycles and high utilization.

Prices of Swap body tank containers

I won’t provide price figures or ranges for swap body tank containers. What I can explain is why commercial differences appear, because swap bodies are often compared incorrectly to ISO tanks based on visible size alone.

The first driver is network specificity. Swap body tanks are built for particular chassis standards, handling systems, and operating environments. That specialization affects manufacturing choices and can influence how broadly the unit can be deployed. A highly network-specific unit may deliver excellent value in the right corridor, but it’s less flexible elsewhere, and that trade-off shapes commercial logic.

The second driver is structural and staging design. Support legs, reinforced frames, and the ability to withstand repeated drop-and-pick cycles require robust engineering. In a high-cycle operation, strength and durability are not optional. Units that are designed to survive daily interchange without fatigue-related issues tend to be positioned differently than lighter-duty options.

The third driver is tank configuration and compatibility requirements. Material selection, gasket choice, fittings layout, and protection packages can differ based on cargo and customer standards. If your operation needs specific couplings or enhanced protection around valves, that changes the offer compared to a general-purpose setup.

Serviceability and parts support also shape value. In swap-body operations, equipment moves fast. If a minor issue takes a unit out of service for too long, you lose the utilization benefit that justifies using swap bodies in the first place. Providers and manufacturers that support quick maintenance cycles often deliver better operational value.

So the right way to compare offers is to focus on fit and uptime: chassis compatibility, staging reliability, robustness under frequent interchange, and configuration alignment with your cargo and receivers.

What are Swap body tank containers For?

Swap body tank containers are for efficient regional bulk liquid logistics built around the drop-and-swap operating model. Their purpose is to decouple transport capacity from loading and unloading time, so tractors and drivers spend more time moving freight and less time waiting at bays.

They are for networks where swap bodies can be staged safely on legs and where sites accept that operating style. This includes routes with frequent deliveries, repetitive loops, and receivers whose unloading schedules don’t always match the carrier’s transport schedule. By leaving the body and returning later, you reduce schedule conflicts and keep the fleet productive.

They are also for operations where higher usable volume and payload efficiency can matter in short-haul distribution, depending on local rules and infrastructure. In those corridors, swap body tanks can reduce trip counts and smooth site congestion.

Swap body tank containers are less suited for supply chains that depend on universal ISO interoperability and global sea transport. Their purpose is not to replace ISO tanks globally. Their purpose is to optimize a network that already has swap-body standards and wants the highest possible utilization and scheduling stability.