Author: Special Car Chronicles
Link: https://www.zhihu.com/question/20865654/answer/2403956599
Source: Zhihu
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What procedures are required for producing semi-trailers in 2022? Semi trailers, belonging to the category of specialized vehicle trailers, require the admission of enterprises with trailer production qualifications. 1、 The classification of trailers includes: general purpose truck trailers and other trailers. General purpose truck trailers, including frame, railings, flat and low flat plates, box type, warehouse grate, self dumping, tank type and other transportation trailers. Other trailers refer to trailers other than general-purpose truck trailers and special operation trailers (over limit trailers)< Img src=“ https://pic3.zhimg.com/v2-acd6610ba5d98cd7116d4eaa3e79152c_b.jpg "Data caption=" "data size=" normal "data rawwidth=" 667 "data rawheight=" 500 "data initial token=" v2-9e069379661c9c3f4feba0bf0dc086ef "class=" origin_image zh lightbox thumb "width=" 667 "data initial=" https://pic3.zhimg.com/v2-acd6610ba5d98cd7116d4eaa3e79152c_r.jpg 2. The conditions that need to be met for the production of trailers: 1. General purpose truck trailer production enterprises should have the production process and facilities for cutting, forming, welding, and assembling chassis and boxes (including self-made special devices), as well as closed coating production facilities and equipment that meet environmental protection requirements. The chassis longitudinal beams can be combined with special devices for production (when the special devices have bearing capacity) or outsourced for processing. Forming, welding, and final assembly production lines with assembly line operations. 2. Other trailer production enterprises should have the production capacity for general purpose truck trailers (in addition to the production line requirements for assembly line operations), as well as the production capacity for special purpose trucks and special operation vehicles (in addition to the capacity requirements for chassis modification of Class III). 3、 The production capacity required for producing trailers: General purpose truck trailer production enterprises should have the ability to produce self-made components such as connecting devices, frames/chassis, subframes, support legs, and specialized devices, as well as carriages/car bodies/tanks (excluding lifting trailer products). The main equipment that should be equipped includes: plate cutting equipment, forming equipment and molds, welding/riveting equipment, tooling fixtures and molds, machining equipment, painting equipment, transportation/lifting equipment, large structural component calibration/calibration equipment, and heat treatment equipment (when required by the process). For tank trailers, they should also have head forming equipment, and for lifting trailers, they should also have lifting arms, turntables, and other equipment< Img src=“ https://pic2.zhimg.com/v2-7805b29debd19e61d39c7ec2b424f483_b.jpg "Data capture=" "data size=" normal "data rawwidth=" 667 "data rawheight=" 500 "data initial token=" v2-915b0876acd9040bbab489b096ac25a0 "class=" origin_image zh lightbox thumb "width=" 667 "data initial=" https://pic2.zhimg.com/v2-7805b29debd19e61d39c7ec2b424f483_r.jpg 4. Requirements for design and development personnel: A specialized product development organization should be established to be responsible for the entire process of product design and development. It should be able to complete the development of specialized devices and match with the entire vehicle, and reflect it in the design and development of specific products. It should be able to use specialized software for the design, calculation, and other work of specialized devices and vehicle matching. The developed and produced products should comply with legal provisions on intellectual property protection. Professional technical personnel suitable for the design and development tasks should be equipped to understand the development of domestic and foreign specialized vehicle or trailer technology. It should be able to track and transform relevant national standards, industry standards, and national regulations; Developers include professional technical personnel in product planning, vehicle matching, specialized device assembly component design, trial production, testing and inspection, standard regulations, intelligence information, intellectual property and patents, etc. The production of semi-trailers requires a variety of production facilities and equipment, with a wide range of inspection instruments and items. It is difficult to handle, has a long cycle, high costs, and has extremely high requirements for the site. If you have any questions, please feel free to consult at