Trailer (vehicle)
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A Trailer is an unpowered vehicle pulled by a powered vehicle. Some non-American dialects distinguish a trailer (generally uncovered, used for goods and materials) from a caravan (travel trailer) (generally weather-resistant, used for human habitation).
Types of trailers
There are five main types of trailer, defined by their axle arrangement and method of combination.A semitrailer is supported at its forward end by a fifth wheel (or gooseneck ball) mounted on a truck or dolly and at the rear end by its own wheels. Special constructions are [link]: - double deck trailers - step-frame trailers Both help to minimise the number of trips for a given transport volume.
Full trailer
A full trailer is supported by axles front and rear and pulled by the way of a drawbar. In Europe this is also know as A-Frame drawbar trailer.Simple trailer
A simple trailer is pulled by a drawbar, but has a single set of axlesA trailer meant for housing people while camping, towed by a motorized vehicle.
A-train
An A-train is a semi-trailer attached to an A-dolly. The A-dolly is connected to the tractor or another trailer in front of it with a single draw-bar, thus giving it two articulation points and little roll stiffness.
(See road train)
B-train
A B-train is a semi-trailer attached to a fifth-wheel mounted on the rear of another semi-trailer.
C-train
A C-train is a semi-trailer attached to a C-dolly. The C-dolly is connected to the tractor or another trailer in front of it with two draw-bars, thus eliminating the drawbar connection as an articulation point. The axle on a C-dolly is self-steerable to prevent tire scrubbing.
Freight trailers types
Trailers built for hauling cargo come in different shapes depending on their use.
- Agriculture
- * Corn (double bottom hopper)
- * Grain (hopper / no-hopper, open-tarp top)
- * Livestock (belly or straight)
- Auto carriers (5-car, 9-car, 6-car enclosed)
- Beverage
- Chip/wood product
- Container chassis, designed to carry standard 20 feet and 40 feet containers
- Curtainside / tauntliner - half-flatbed/half van, vans whose sides are made of fabric and can be easily removed enclosed cargo trailers
- Doubles / triples - or "pups"
- Dropdeck – steel and composite
- Dump - aluminum and steel; rear dump (frame or frameless) and bottom dumb
- Extendable - flatbed and drop style
- Flatbed - steel and composite; (can have bulkhead, spread axles)
- Lowboy - (gooseneck) hydraulic detachable and mechanical detachable; flip-up
- Platform
- Pole/logging - a single I-beam frame running the length of the trailer, with two "U" shaped holding arms at each end
- Sliding axle and hydraulic tail (lift) or dove-tail (heavy loads)
- Specialized multi-axle (gooseneck; for extremely heavy loads)
- Tag
- Tank
- * Tank - asphalt
- * Tank - compressed industrial gas (helium, argon, etc.)
- * Tank - dry bulk (hopper)
- * Tank – petroleum (oil and gasoline; can be chassis tank with pup)
- * Tank – stainless steel (milk; can be sanitary)
- Transfer
- Utility
- Van - (enclosed van, the most common type of trailer-approximately: U.S.-41.7%, essentially a box on wheels)
- * Van - dry freight
- * Van – refrigerated (reefer), insulated vans for the transport of perishable goods
- * Van - single and double drop; moving / furniture van
- NOTE: There are many types of vans, vans made of wood, metal and/or fiberglass, smooth or ribbed, generally used for dry goods or equipment transport
Manufacturers
U.S.
- Benson International
- Cargo Mate
- Circle C
- Clark Trailer Service
- Clement Industries
- Danco Trailers
- Double Hitch Company
- East Manufacturing
- Forest River
- Fontaine Trailer
- Fruehauf
- Globe Trailers
- Great Dane Trailers
- Haultec Trailers
- Hyundai Translead
- Innovative Trailers
- Kenworth
- Landoll Haul All
- MAC Trailer Manufacturing
- Manac
- Martin Marietta Composites
- Max-Atlas Equip International
- Merritt Equipment
- Ranch Manufacturing
- Reinke Manufacturing
- Reitnouer
- Rogers Brothers
- S and H Trailers
- SmithCo Manufacturing
- Steco
- Stoughton Trailers
- Summit Trailer Sales
- Texas Bragg
- Thru-Way Trailers
- Trail King Industries
- Transcraft Eagle
- Travis Body & Trailer
- Trinity Trailer Manufacturing
- Utility Trailer Manufacturing
- Vanguard National Trailer
- W-W Trailers
- Warren Equipment
- Wilkens Manufacturing
- Wilson Trailer
- Wright Trailers, Inc.
- X-L Specialized Trailers
See also
- Articulated vehicle
- Camper
- Dolly
- Double decker trailer
- Jackknifing
- Road train
- Semi-trailer
- Trailer hitch
- Transporter trailer
- Truck
See also (web)
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