A01: A rolltrailer is a heavy-duty, unpowered flatbed trailer primarily used in port logistics and heavy industry for Roll-on/Roll-off (RoRo) transport and internal site transfer of containers, project cargo, and heavy machinery without relying on quay cranes.

A02: A rolltrailer features an open tunnel structure at the front into which a detachable or fixed gooseneck from a terminal tractor (tugmaster) is inserted and locked.

A03: The standard sizes are 20ft (approx. 6.1 m), 40ft (approx. 12.35 m), 45ft (approx. 13.7 m), and 62ft (approx. 18.9 m).

A04: Solid rubber tires are puncture-proof, extremely durable under heavy loads, require virtually no maintenance, and eliminate downtime caused by flat tires.

A05: The pendel axle system distributes heavy wheel loads evenly across uneven surfaces, protecting both the trailer structure and the deck of the vessel or terminal from high point loads.

A06: A 20ft rolltrailer typically has a payload capacity ranging from 40 to 60 tons.

A07: The standard width is 2,500 mm, with options to extend to 2,600 mm or 2,800 mm for wider cargo.

A08: The unladen platform height generally ranges between 700 mm and 850 mm, depending on the size of the trailer and its load capacity.

A09: A 62ft rolltrailer is suitable for heavy loads ranging from 80 tons to over 120 tons.

A10: High-grade rolled steel such as S355 or Q345 is standard, with heavy IPE 550 beams applied for extremely heavy-duty models.

A11: A 40ft rolltrailer can transport either one 1 x 40ft ISO container or two 2 x 20ft ISO containers.

A12: A 62ft rolltrailer is suitable for various combinations, such as 3 x 20ft, 1 x 20ft + 1 x 40ft, or 2 x 30ft containers.

A13: Containers are secured using flush-mounted corner castings or twistlock pockets integrated directly into the deck frame.

A14: Heavy cargo is secured using heavy-duty D-rings or lashing points on the side frame, with a minimum breaking load (MBL) of up to 36 tons per point.

A15: Yes, many models are equipped with integrated side forklift pockets, specifically designed for moving empty trailers with a heavy forklift.

A16: Decks are usually finished with impregnated pine, durable hardwood (approx. 45–55 mm thick), steel checker plate, or they are configured as an open skeleton frame for container handling.

A17: The deck can be equipped with integrated rail tracks (e.g., track gauge 1,435 mm or 1,535 mm) for direct transfer and transport of railcars.

A18: It reduces the tare weight of the trailer and provides a lightweight, efficient solution purely optimized for transporting ISO containers.

A19: A 62ft rolltrailer typically has 4 to 6 pendel axles with a total of 8 to 12 solid rubber wheels.

A20: Heavy-duty double-tapered roller bearings mounted in solid or thick-walled box section axles.

A21: They are widely used in steel mills, foundries, crane manufacturing, and heavy equipment manufacturing for transporting raw materials, molds, and large structural components.

A22: Rolltrailers feature a simple, mechanically extremely robust construction without complex pneumatic brake systems or inflatable tires, keeping maintenance costs and downtime to a minimum.

A23: The reinforced gooseneck tunnels are fitted with wear plates capable of withstanding coupling loads exceeding 45 tons.

A24: It allows cargo to be driven on and off quickly via vessel ramps without requiring quay crane capacity.

A25: Well-known manufacturers include MAFI, Seacom (Swecom), Houcon, and Novatech.