Semi-trailer

, horses, pigs, sheep, etc. Commonly, they have two levels (or three for hogs) to maximize capacity.

Lowboy ("British" Low-loader) trailers are a type of flatbed in which the load floor is as close to the ground as possible, most commonly used to haul heavy equipment, cranes, bulldozers, etc.

Refrigerator trailers are box trailers with a heating/cooling unit (reefer) attached, used for hauling produce, frozen foods, meat, flowers, etc.

Refrigerator tank trailers are well insulated or refrigerated to haul bulk liquid foods, such as liquid sugar, water, wine, milk or juices.

Sidelifter semi-trailers have hydraulic cranes mounted at both ends of the chassis allowing for the loading and unloading of shipping containers without the need of a forklift or other container-handling equipment.

Tank chassis trailers are used for hauling liquids such as gasoline and alcohol. some are designed with a lowered centre of gravity to ensure greater stability. Generally bottom loaded with the ability to recover any waste vapor for safety reasons.

A "frac" tank trailer has a single and fixed axle, and is typically used during hydraulic fracturing at oil wells or for petrochemical industries. It is shaped like a wedge, and when it is unhitched, its bottom side lies flat on the ground.

"Wing" is one of the box trailer which used in Japan. Both side panels are opened like a Gull-wing door by motor power.

Trailer types

Box trailer (US)

Auto transporter (Brazil)

Curtain sider trailer (EU)

Semi dump trailer (Germany)

Flatbed trailer (Iran)

Live bottom trailer (US)

Lowboy (US)

Refrigerated trailer (UK)

Sidelifter (New Zealand)

Tank trailer (Japan)

"Wing" van (Japan)