Qingdao Tune Technology Co., Ltd. builds RV and Camping Trailers at its 4,500-square-meter production facility in Shandong, China. These are towable off-road units for overland travel, glamping fleets, mobile lodging, and field research. Standard models range from 3,500 lbs to 7,000 lbs GVWR and can be towed by a properly equipped 4x4 SUV or light truck. Each trailer includes a galvanized steel chassis, insulated FRP sandwich panels, solar and battery storage options, and a full wet-bath and kitchenette. Fixed accommodation units are also available as Space Capsule Pods, and standalone wash facilities are offered as Shower Trailers.
The structural backbone is a heavy-duty independent trailing-arm suspension with dual coil springs and twin nitrogen-charged shock absorbers per wheel. The main chassis frame is hot-dip galvanized to ASTM A123, so the zinc coating covers both the inside and outside of the steel box tubing. This protects the frame against mud, road salt, and river crossings. Braking options include 12-inch electric drum brakes on tandem-axle models. Off-road radial tires and a reinforced drawbar are standard on the heavier configurations. The design is intended to handle rough terrain without chassis flex or premature metal fatigue.
The body uses 40 mm to 50 mm vacuum-bonded sandwich panels with high-density flame-retardant polyurethane foam. The thermal rating is around R-16. This allows the trailer to hold comfortable interior temperatures from about -20°C to +45°C without structural flexing or internal condensation. Wall and roof seams are sealed to limit water ingress during heavy rain and river crossings. FRP exterior panels resist UV fading and surface damage from branches and gravel. The result is a sealed envelope that stays usable across seasons.
The single-axle model is rated at 3,500 lbs to 6,000 lbs GVWR and uses a 150L freshwater tank with a 100L greywater tank. Inside, the layout includes a convertible queen berth, an enclosed wet-bath, a 12V compressor fridge, and a stainless slide-out kitchenette with a dual-burner LP cooktop. The dual-axle model is rated at 7,000 lbs GVWR and has an exterior length up to 6.5 meters. It adds a dedicated master bedroom, a dry-separation bathroom with a ceramic cassette toilet, solid wood cabinetry, mood lighting, and an electric side awning. Floor plans can be adjusted for rental fleets, research teams, or private use.
Roof-mounted monocrystalline solar panels generate 400W to 1,200W and are managed by an MPPT charge controller. Energy is stored in a 12.8V 300Ah to 600Ah LiFePO4 battery bank paired with a 3,000W pure sine wave inverter/charger. This setup can run 12V LED lighting, induction cooktops, water pumps, and a 13,500 BTU inverter air conditioner at the same time. For sites without solar access, the trailer can be connected to a generator or shore power. The system is designed for extended off-grid stays in remote areas.
Freshwater lines use PEX tubing and run through insulated subfloor channels. On cold-weather models, 12V heat-trace cables protect the lines from freezing. A 12V DC diaphragm pump delivers 4.5 GPM at 50 PSI to all sinks and the shower. Greywater and blackwater are stored in separate tanks and can be emptied at standard dump stations or connected to a site sewer. Tank sizes vary by model and can be increased for longer trips. The plumbing layout is designed to reduce freeze risk during winter travel.
Glamping operators deploy fleets to eco-resorts and camping parks where permanent foundations are not allowed. Research teams use them as mobile field labs and living quarters in desert, forest, and mountain environments. Rental companies use the heavy-duty subframe and standard components to keep maintenance costs low and utilization high. For projects that need restroom or shower facilities separate from the trailer, a Toilet Trailer can be placed on the same site.
Before shipment, each trailer completes a 24-hour high-pressure rain chamber test at 50 PSI to check windows, pop-top roofs, entry doors, and storage hatches. All 12V DC and 110V/230V AC circuits undergo high-potential insulation testing. Dynamic brake force tests verify towing safety under load. After approval, the unit is wrapped in multi-layer ocean packaging, secured on heavy-duty shipping skids, and loaded into high-cube containers. TUNE provides a 12-month structural factory warranty and electrical schematics.
RV and Camping Trailers can be supplied with CE, ISO 9001, DOT, EPR, COC, and NSF-aligned documents where required. TUNE holds Alibaba Gold Supplier status and has completed regular third-party inspections by SGS and Intertek. Certificate numbers, scope, and validity can be provided before ordering.
Q: What vehicle do I need to tow an RV and Camping Trailer?
A: The single-axle models at 3,500 lbs to 6,000 lbs GVWR can be towed by a properly equipped 4x4 SUV or light truck. The dual-axle model at 7,000 lbs GVWR needs a full-size truck or heavy SUV with the correct tow rating, brake controller, and hitch. We provide weight and hitch data before ordering.
Q: Can the trailer run fully off-grid?
A: Yes, with the solar and battery package. The 400W to 1,200W array and 300Ah to 600Ah LiFePO4 bank can run lights, pumps, fridge, and air conditioning for extended periods, depending on sunlight and usage. A generator or shore power connection is recommended as backup.
Q: How does the trailer handle cold weather?
A: The R-16 insulated body and optional 12V heat-trace cables on the water lines allow use down to about -20°C. The heating system and insulated tanks are designed to reduce freeze risk during winter travel.
Q: What is the lead time for a custom build?
A: Lead time depends on floor plan, equipment, and finish. After drawings and deposit are confirmed, most builds take several weeks to a few months. The exact schedule is written into the order.
Q: What after-sales support is included?
A: TUNE offers a 12-month structural warranty, remote technical support, and shipment of common spare parts such as water pumps, brake components, and electrical switches. Specific terms are stated in the contract.
