At Caravan Salon Düsseldorf 2025, Lidu Caravan attracted considerable attention among European industry professionals. The company, which originates from the automotive body and chassis manufacturing sector, presented its vision for bringing automotive-grade engineering standards into the recreational vehicle industry. Rather than relying on traditional leisure vehicle construction techniques, Lidu applies manufacturing principles derived from the passenger vehicle sector. The result is a production approach based on advanced materials, industrialised processes and strict quality control standards.
This philosophy does not only apply to touring RVs. It also underpins the company’s Cube-800, described by the manufacturer as a camp trailer – a product designed specifically with campsite use in mind. Positioned between a caravan and a compact accommodation unit (like mobile homes), the Cube-800 is intended for campsites, holiday parks and outdoor hospitality operators seeking durable, industrially produced accommodation solutions.
What makes the product distinctive is that it relies on the same steel–aluminium hybrid construction technology used across the Lidu range.
A steel–aluminium hybrid body
According to the company, the key technological difference lies in the body structure. Lidu uses a steel–aluminium hybrid architecture that combines hot-forming steel with aluminium panels. Steel provides structural strength and rigidity, while aluminium contributes to corrosion resistance and weight optimisation. This balance between the two materials has been carefully engineered to combine durability with structural safety.
As CEO Smith Zhang said in an interview with Camper Professional Deutschland, one of our publications dedicated to the RV industry, the hybrid structure is the result of extensive development work: “For us, ‘automotive-grade technological process’ is not a slogan but a complete manufacturing system built on three core dimensions: manufacturing processes, material standards, and quality control. We use a steel–aluminium hybrid body structure. It meets lightweight requirements while raising structural safety to passenger vehicle standards and significantly improving durability”.
Achieving the correct balance between the two materials was a central engineering challenge: “Achieving the correct ratio between steel and aluminium was essential to balance strength and weight – too much steel increases mass, while full aluminium cannot provide the same level of structural safety. After extensive testing, we optimized this balance”.
Automotive manufacturing processes
Equally significant is the manufacturing process used to assemble the structure. Lidu employs technologies that are widely used in the automotive sector but remain relatively uncommon in traditional RV production. Body components are formed using large industrial stamping presses, allowing precise tolerances and consistent quality. The steel and aluminium elements are then joined using a combination of advanced techniques including self-piercing riveting (SPR), Flow Drill Screws (FDS) and laser welding.
These methods replace more traditional approaches such as simple welding or adhesive bonding and allow a more controlled distribution of stress throughout the body structure. “We combine hot-forming steel and aluminium hybrid stamping with aerospace-grade self-piercing riveting, Flow Drill Screws and laser welding, replacing traditional welding or gluing methods,” said Zhang. “This integration increases body strength more than threefold while ensuring uniform stress distribution and long-term reliability”.
Advanced materials and specialised supply chain
The materials used in Lidu vehicles also reflect its automotive origins. The company relies on supply chains similar to those used in passenger vehicle manufacturing. For example, the hot-forming steel used in the structure has a tensile strength exceeding 1500 MPa, a level typically associated with high-end automotive safety structures.
Interior materials are also sourced from automotive suppliers with strict emission controls. This approach ensures that interior components meet high standards in terms of environmental performance and air quality.
Another distinctive feature is the use of automotive-grade butyl rubber sealants rather than conventional silicone products commonly used in leisure vehicles. According to the company, this improves sealing performance and durability while also reducing the risk of volatile organic compound (VOC) emissions.
Durability and corrosion protection
Durability was another key consideration in the engineering of the hybrid structure. Steel components undergo full-body electrophoretic coating (e-coating) to prevent corrosion, while the entire structure uses automotive-grade fasteners designed for long-term exposure to humidity and outdoor environments.
This is particularly relevant for vehicles and accommodation units that may remain in campsites for extended periods, often in coastal or high-humidity regions. “Rust prevention is another critical factor,” underline Zhang. “We apply full-body e-coating to steel components and exclusively use automotive-grade fasteners throughout the vehicle. Our design principle is ‘no rust’ from the engineering stage, ensuring long-term structural integrity.”
A construction approach applied to camp trailers
The Cube-800 camp trailer therefore reflects a broader industrial approach rather than simply a new product category. By applying automotive-grade materials and manufacturing processes to a unit designed specifically for campsite accommodation, Lidu aims to combine the robustness of industrial vehicle production with the functional requirements of outdoor hospitality.
For campsite operators and holiday parks, such an approach offers advantages in terms of structural durability, resistance to outdoor conditions and production consistency. More broadly, the Cube-800 illustrates how manufacturing philosophies developed in the automotive sector may increasingly influence the design of leisure vehicles and campsite accommodation units.
As Lidu Caravan enters the European market, its emphasis on steel–aluminium hybrid construction, advanced joining technologies and automotive-derived production standards positions the company as an interesting technological newcomer in the leisure vehicle and outdoor hospitality industries.
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