Recently, Chongqing Chuke Intelligent Machinery Equipment Co., Ltd. (hereinafter referred to as "Chuke Intelligent") received feedback from customers: the CK-PMK-T61230 portable engine chassis marking equipment, customized for vehicle verification scenarios at vehicle management offices, performed exceptionally well in marking six-cylinder heavy-duty diesel engines. Customers at vehicle management offices reported excellent chassis number marking results, with neat and complete lettering, meeting the official verification standards for the entire process of vehicle registration, annual inspection, and transfer. This provides a new and efficient solution for the standardization of engine identification for commercial vehicles and construction machinery.

The marking equipment is widely applicable to heavy trucks and large construction machinery. The complex structure, numerous curved surfaces, and dense pipeline layout of these machines have long presented a challenging situation for engine number marking and rubbing operations. Traditional general-purpose marking machines are bulky and lack positioning accuracy, making them difficult to fix in the confined working space of an engine. This often results in uneven character depth, incomplete strokes, and blurry imprints, lengthening vehicle inspection times at vehicle management offices and frequently hindering vehicle paperwork processing due to substandard markings—a long-standing pain point in the vehicle inspection and management industry.
To address the specific working conditions of heavy-duty diesel engines, the Chuke Intelligent R&D team has deeply analyzed the on-site operational needs of vehicle management offices and launched the custom-designed CK-PMK-T61230 portable marking machine. This new customized model focuses on three core requirements: adaptability to confined spaces, stable depth marking, and high-definition imprinting. Specifically adapted to the curved cylinder block and dense piping of six-cylinder diesel engines, the machine features improvements in fixing methods and marking depth control.

This equipment features a strong magnetic adsorption positioning mechanism, eliminating the need for additional tooling and fixtures. It can quickly conform to the curved surfaces and flat metal areas of engine blocks, significantly reducing equipment setup and debugging time. The high-precision impact engraving system precisely controls the character engraving depth, creating a uniform dot matrix marking on cast iron engine blocks with clear, burr-free stroke edges. After being covered with rubbing paper, all characters can be completely replicated, effectively avoiding verification failures such as missing strokes, shallow printing, and broken codes.
Simultaneously, this marking machine integrates a portable all-in-one chassis with a built-in intelligent printing control system. It supports one-click batch entry of vehicle identification numbers (VINs) and engine serial numbers, and is compatible with standardized character formats used by vehicle management offices. Operators do not require specialized technical skills; they can complete the engraving operation simply by turning on the machine. The lightweight design is suitable for various scenarios, including on-site verification by vehicle management offices, engine refurbishment and re-marking at repair shops, and factory marking of construction machinery. It is not limited by workshop space or vehicle parking location. The modular structure facilitates daily maintenance, and the low failure rate during long-term continuous operation fully matches the high-frequency, high-intensity business rhythm of vehicle management offices.
After on-site testing of the entire process of marking and tracing vehicle identification numbers (VINs), staff at the vehicle registration office immediately provided feedback to Chuke Intelligent regarding the effectiveness of the equipment. The client stated that previously, processing VIN tracing for heavy construction machinery and large truck engines often involved repeated rework due to the poor quality of existing marking equipment. The engine VINs tracingd using the CK-PMK-T61230 equipment showed clear lines and even sharp edges on-site, significantly improving the efficiency of vehicle registration.

As a Chongqing-based manufacturer with nearly two decades of experience in industrial marking, Chuke Intelligent focuses on the compliant marking segments for motor vehicles, construction machinery, and special equipment, continuously developing customized equipment solutions to meet the diverse needs of vehicle registration offices, vehicle manufacturers, and repair and testing institutions. The high praise received by the vehicle registration office client for this customized model represents another market validation of Chuke Intelligent's scenario-driven technology development.
Currently, the number of commercial vehicles and construction machinery in China continues to grow, and the volume of engine and chassis number verification at vehicle registration offices is steadily increasing. This leads to a continuously expanding market demand for professional marking equipment that can adapt to complex models and provides stable VIN tracing results. Next, Chuke Intelligent will leverage this heavy-duty diesel engine application case to expand its compatibility with more engines and special engineering machinery models, using customized labeling solutions to help upgrade vehicle management in a standardized and intelligent manner, and continue to provide highly reliable domestic industrial equipment for the domestic motor vehicle compliance labeling manufacturing field.
