{"id":2040,"date":"2026-11-10T11:22:21","date_gmt":"2026-11-10T03:22:21","guid":{"rendered":"https:\/\/kdzgtruck.com\/?p=2040"},"modified":"2026-11-10T11:22:22","modified_gmt":"2026-11-10T03:22:22","slug":"how-are-freight-trucks-classified-by-structure","status":"publish","type":"post","link":"https:\/\/kdzgtruck.com\/es\/2026\/11\/10\/how-are-freight-trucks-classified-by-structure\/","title":{"rendered":"How are freight trucks classified by structure"},"content":{"rendered":"

A freight truck is actually composed of four layers of structure, including the driver’s cab, chassis, cargo compartment, and the entire vehicle. The selection should also be judged layer by layer based on these four layers.
The cab is divided into flat head, long head, and short head. The flat head engine is placed under the driver’s cab, with a short body and good visibility, making it a major player in China; Long haired front mounted engine, with a large collision buffer zone and easy maintenance, has applications in high-end heavy-duty trucks, construction vehicles, and dangerous goods transportation; Short head is a compromise between the two.
The core of the chassis is the driving form. 4 \u00d7 2 'is a two axle single rear axle commonly used for light and medium trucks;<\/code> 6 \u00d7 2 ‘three-axis, one of which is a follow-up or lifting bridge, with a focus on lightweight and fuel-efficient design; 6 \u00d7 4 'three-axis dual drive axle is the main force of mainline heavy-duty trucks, with the most balanced climbing and adaptability;<\/code> 8 \u00d7 4 ‘four axles are used for heavy-duty bicycles, dump trucks, and mixer trucks. The number of axles determines the legal load limit, so the structural selection is first subject to regulatory constraints.
The frame and suspension determine the lifespan and cargo damage. The edge beam trapezoidal frame almost unifies commercial vehicles; There are three types of suspensions: steel plate spring, air suspension, and composite suspension. For heavy loads, steel plate spring is selected, while for cold chain and precision transportation, air suspension is selected. Composite suspension balances cost and performance.
Loading determines the efficiency of loading and unloading. Box type fully enclosed rainproof, fast loading and unloading of warehouse grilles, universal use of guardrails, the highest efficiency when the wingspan is fully opened on both sides, self dumping relies on lifting oil cylinders to flip, tank type includes anti wave plates and fluidized beds, and flat and low flat plates specialize in large and oversized cargo.
There are three forms of vehicle combinations: single bike is the most flexible; Tractors with semi trailers have balanced load-bearing capacity and fast turnover, making them the main force on the mainline; The mid axle trailer is used for car transportation and express delivery, and its compliance is greatly affected by policies.
In addition, there are special structures such as wide body mining trucks, low entrance low floor trucks, and multi axis hydraulic trailers.<\/p>","protected":false},"excerpt":{"rendered":"

A freight truck is actually composed of four layers of structure, including the driver’s cab, chassis, cargo compartment, and the entire vehicle. The selection should also be judged layer by layer based on these four layers.The cab is divided into flat head, long head, and short head. The flat head engine is placed under the…<\/p>","protected":false},"author":1,"featured_media":776,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[45],"tags":[],"class_list":["post-2040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-logistics-for-the-new-era"],"_links":{"self":[{"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/posts\/2040","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/comments?post=2040"}],"version-history":[{"count":1,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/posts\/2040\/revisions"}],"predecessor-version":[{"id":2041,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/posts\/2040\/revisions\/2041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/media\/776"}],"wp:attachment":[{"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/media?parent=2040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/categories?post=2040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kdzgtruck.com\/es\/wp-json\/wp\/v2\/tags?post=2040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}