Swap Body Loading Guide
Swap bodies transfer between truck and rail without a crane — legs down, drive out, drive in. The loading rules that make this work safely are different from standard trailers.
C715 length
7,150 mm
C745 length
7,450 mm
Standard width
2,550 mm
GVW (intermodal)
44,000 kg
Swap Body Type Comparison
Select a swap body class to see dimensions, capacity, and intermodal compatibility
7,150 mm
Interior length
2,440 mm
Interior width
2,670 mm
Interior height
~16,000 kg
Max payload
17 EUR pallets
EUR pallets
4 legs, 1,100 mm ground clearance
Folding support legs
How to load and transfer a swap body
Swap body operations combine truck loading rules with intermodal transfer procedures. Both must be followed — a correctly loaded but incorrectly transferred swap body is as dangerous as a badly loaded one.
Step 1
Select the right swap body class for your network
The three common EU swap body classes are C715 (7.15 m external length), C745 (7.45 m), and C782 (7.82 m). Two C715 or C745 swap bodies typically fit on a standard 13.6 m semi-trailer with coupling space. One C782 fits on a standard trailer or rail wagon. Choose based on your network: C745 is the most common in European general cargo operations; C715 is better for urban routes where turning radius and loading bay depth matter; C782 maximises volume for long-haul or rail-dominated routes.
Step 2
Load cargo respecting floor load limits and CoG
Swap bodies have a floor load rating of typically 5,000–7,500 kg/m². Unlike containers (which have a stacking load rating), swap bodies are designed for road and rail but NOT for crane lifting of the loaded body — only the cargo is crane-liftable, or the empty body can be lifted. Load cargo with the CoG at 45–55% of the interior length from the front. Lateral CoG must stay within 50 mm of the centreline. For rail operations, the vertical CoG matters more than for road — a high CoG on rail can cause wagon instability in curves.
Step 3
Secure cargo per CTU Code and EN 12195
All cargo in a swap body must be secured per the CTU Code (for intermodal moves) and EN 12195 (for road segments). Unlike standard trailers, swap bodies typically have internal lashing rails along the side walls at two heights. Use these lashing points — do not lash through the body walls or hooks not rated for cargo securing. For palletised loads, ensure pallets are in good condition (no broken boards) and use load bars or straps to prevent pallet movement. For rail segments, lateral acceleration forces can be higher than road — over-secure rather than under-secure for intermodal loads.
Step 4
Lower the support legs before decoupling from the truck
Swap body transfer procedure: with the loaded swap body on the truck chassis, engage the parking brake. Lower the four support legs to the ground using the hand crank or hydraulic system — ensure all four legs are fully extended and locked. Verify the legs are on a hard, level surface (concrete or compacted gravel) — legs on soft ground can sink under load. Unlock the truck chassis coupling hooks. Drive the truck forward slowly until clear of the swap body. The body now stands independently on its legs.
Step 5
Position the receiving vehicle or rail wagon under the body
For truck transfer: back the receiving chassis under the swap body, aligning the chassis coupling rails with the swap body's bottom rails. The chassis must be at the correct height — adjustable air suspension makes this easier. Engage the coupling hooks and verify all locks are engaged before raising the body off its legs. For rail transfer: the rail wagon is positioned on an adjacent track at a terminal; the swap body is either side-loaded by sliding on rails between truck and wagon, or lifted by a reach stacker if the body has top lifting fittings (check body rating before lifting).
Step 6
Document the intermodal chain and CMR/CIM handover
For road-rail intermodal moves, the transport document changes mode at the terminal: the CMR (road waybill) applies for road legs; the CIM (rail consignment note) applies for rail legs. At the terminal, a handover document records the swap body number, seal number, cargo description, and gross weight. The terminal operator issues a receipt. For customs purposes, the cargo remains under the same customs declaration across the intermodal chain — ensure the swap body seal is intact and matches the customs document at every handover point.
Swap body rules at a glance
Based on EN 283 (swap body standard), UIC 592 (rail compatibility), CTU Code, and EC Directive 96/53. Intermodal operations additionally fall under EU Directive 92/106.
C745 length
7,450 mm
Most common EU class
Standard width
2,550 mm
Interior: 2,440 mm
Intermodal GVW
44,000 kg
EU bonus for road + rail
EN 283
Required
EU swap body standard
EU intermodal weight bonus
+4,000 kg (44,000 kg GVW)
Under EC Directive 96/53, truck combinations carrying swap bodies as part of a combined road + rail transport chain qualify for a 44,000 kg GVW allowance instead of the standard 40,000 kg. The road leg must be the pre- or post-haulage for a documented rail movement. This gives approximately 26,000–28,000 kg of cargo capacity for a standard swap body combination — significantly more than a pure road move. The intermodal bonus applies automatically when the transport documents correctly describe the combined transport chain.
Transfer terminal requirements
Hard, level surface only
Swap body legs are designed for stationary support on hard standing — concrete or reinforced compacted gravel. They are not designed for use on soft ground, grass, or uneven surfaces. Under the weight of a loaded swap body (up to 28,000 kg total), legs on soft ground can sink or tip. Most intermodal terminals have designated parking bays for swap bodies. For on-road transfers (e.g. at a customer's yard), verify that the standing area is load-bearing before lowering the legs.
UIC 592 rail compatibility
Approved swap bodies only
Not all swap bodies are approved for rail operations. UIC 592-compliant swap bodies are marked with a UIC approval plate and have reinforced corner fittings or bottom rails compatible with rail wagon locking systems. Before booking a rail slot, verify the swap body's UIC approval number and check it against the rail operator's accepted equipment list. Non-UIC swap bodies may be accepted at some terminals on a case-by-case basis — confirm in writing before transport.
Frequently Asked Questions
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