The TUNE TN-T21 Single Station Mobile Restroom Trailer is a towable sanitation unit with one private restroom station for small events, construction projects, weddings, temporary markets, sports activities, parks and renovation sites. As a portable restroom trailer manufacturer, Qingdao Tune Technology Co., Ltd. produces this 1 stall restroom trailer and construction site toilet trailer for event rental companies, contractors and facility operators.
Qingdao Tune Technology Co., Ltd. was founded in 2015 and operates a manufacturing facility of approximately 4,500 square meters in Shandong, China. The factory covers material preparation, laser cutting, welding, polishing, painting, assembly, quality inspection, packing and shipment. TUNE products are exported to more than 50 countries, with North America accounting for approximately 60% of sales and Europe approximately 25%. Production follows ISO 9001 quality management, and applicable configurations carry CE, DOT, EPR and COC documentation. Third-party inspections are conducted by SGS and Intertek.
Before selecting the configuration, buyers evaluate:
● Expected number of users
● Operating hours
● Water filling method
● Wastewater disposal location
● Towing access
● Ground condition
● Electrical supply
● Local sanitation requirements
● Cleaning and maintenance frequency
For an event, the restroom is positioned close enough for convenient access but away from food preparation and dining areas. For a construction site, the access route, ground stability, service distance and wastewater collection method are confirmed before delivery.
|
Item |
Reference Specification |
|
Model |
TN-T21 |
|
Product Type |
Single-station restroom trailer |
|
Overall Size |
2,100 × 1,500 × 2,550 mm |
|
Approximate Size |
6.88 × 4.92 × 8.36 ft |
|
Reference Weight |
Approximately 600 kg / 1,322 lb |
|
Axle |
Single torsion axle with brakes |
|
Tire |
2 × 195/70 R15 |
|
Wall Material |
40 mm fiberglass sandwich panel |
|
Fresh-Water Tank |
400 L stainless steel tank |
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Wastewater Tank |
600 L stainless steel tank |
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Toilet |
Ceramic foot-flush toilet |
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Sink |
Hand-washing sink with cabinet |
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Ventilation |
Exhaust fan and vent duct |
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Climate Control |
Air-conditioning system, where included |
|
Color |
Customized according to approved color reference |
|
Towing System |
Standard trailer hitch |
The final weight changes after adding water, air conditioning, electrical equipment, decorative materials and optional fittings. The towing vehicle is selected according to the loaded trailer weight and local towing regulations.
The following data is available for project review and is confirmed according to the final configuration:
|
Data Item |
Availability |
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Empty weight and loaded weight |
Supplied with final technical drawing |
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Axle rating and brake capacity |
Confirmed by order configuration |
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Hitch load and towing requirement |
Calculated for the selected equipment |
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Tire load index and speed rating |
Listed on final specification sheet |
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Insulation thickness and panel construction |
Supplied with approved drawing |
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Fresh-water and wastewater tank volume |
Confirmed by final layout |
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Water-pump flow rate |
Listed in equipment schedule |
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Electrical load and voltage |
Confirmed according to destination market |
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Road test and braking test |
Performed before shipment where applicable |
The Single Station Mobile Restroom Trailer uses a welded metal frame to support the restroom body, water tanks, sanitary fixtures and electrical components. The reference model is equipped with a single torsion axle with brakes, pneumatic tires, a trailer hitch, front jockey wheel and stabilizer legs.
Before towing, the operator inspects:
● Hitch connection
● Safety chain
● Lighting plug
● Tire condition and pressure
● Wheel fasteners
● Brake connection
● Jockey wheel
● Stabilizer legs
● Rear and side lights
The stabilizer legs help reduce movement after parking and are not designed to correct unstable ground or excessive slope. The trailer is placed on reasonably level and compact ground before use.
The reference configuration includes a 400 L fresh-water tank and a 600 L wastewater tank. The system may also include a water pump, water heater, water divider, supply pipes, valves and drainage fittings.
1. Fill the fresh-water tank.
2. Check visible pipe joints and valves.
3. Test the faucet and toilet flush.
4. Confirm that the wastewater outlet is closed.
5. Check the pump and water heater.
6. Confirm that the trailer is stable.
7. Test interior lighting and ventilation.
1. Clean the toilet, sink, floor and door handles.
2. Check for leakage or abnormal pump noise.
3. Monitor the wastewater level.
4. Empty the wastewater tank at an approved location.
5. Rinse the system where permitted.
6. Protect or drain the pipes in freezing weather.
The tank capacity does not represent a fixed number of users. Actual service intervals depend on flushing frequency, cleaning requirements, water consumption and operating hours.
The interior is arranged for one restroom station and includes a ceramic foot-flush toilet, hand-washing sink, mirror, lighting, ventilation, cabinet, water heater and optional air conditioning.
The toilet receives water from the clean-water system and discharges into the wastewater tank. The toilet base, pipe connections, sealing points and service access are checked during routine maintenance.
The sink is equipped with a push-button faucet or hot-and-cold water faucet according to the selected configuration. The lower cabinet organizes plumbing components and cleaning supplies.
The mirror and lighting system improve visibility inside the compact restroom. Electrical fittings installed near water are selected and maintained according to the applicable electrical requirements.
The exhaust fan and ventilation duct remove humid air and reduce odor accumulation. Ventilation is used together with regular cleaning, wastewater servicing and proper sealing of drainage components.
Yes. The 1 stall restroom trailer is a towable unit and requires a compatible vehicle with suitable towing capacity, hitch connection, braking system and electrical connection.
It is used on a construction site when the access route, ground condition, water supply, cleaning plan and wastewater disposal method are suitable. Local occupational and sanitation requirements are checked by the buyer.
The reference configuration includes a 400 L fresh-water tank and a 600 L wastewater tank. Actual servicing frequency depends on usage and operating conditions.
Yes. The toilet, sink, faucet, mirror, lighting, water heater, ventilation, air conditioning, music system and storage cabinet are adjusted according to the project requirements.
A water-heating system is listed in the reference configuration. The final model, voltage, power rating and inclusion are confirmed in the quotation.
Yes. The exterior color and logo are customized according to an approved color card, artwork file or branding design.
The body uses a 40 mm fiberglass sandwich panel in the reference specification. The exterior is customized for different event styles, company branding and operating environments.
Available options include:
● Custom exterior color
● Logo and vinyl graphics
● LED advertising light box
● Door hardware
● Interior wall finish
● Mirror and light arrangement
● Sink and cabinet style
● Air-conditioning unit
● Exhaust fan
● Water heater
● Music player
● Additional electrical outlets
● Safety and operating signs
The final design considers cleaning, transport height, maintenance access, branding visibility and local operating conditions.
A typical production process includes:
Material preparation → Chassis welding → Body-panel installation → Door and trim fitting → Tank and pipe installation → Electrical wiring → Sanitary fixture installation → Ventilation and air-conditioning fitting → Water-leak inspection → Electrical test → Cleaning → Packing
Inspection points include:
● Frame and weld appearance
● Axle and wheel installation
● Hitch and stabilizer operation
● Door opening and sealing
● Wall-panel installation
● Fresh-water and wastewater connections
● Toilet flushing
● Faucet and pump operation
● Lighting and electrical switches
● Ventilation and air conditioning
● Road lights
● Packaging protection
Factory visits, video inspections and pre-shipment inspections are arranged according to the project agreement.
CE marking — applies to applicable electrical configurations of the trailer.
ISO 9001 — covers the factory quality management system at the Shandong production facility.
DOT documentation — relates to confirmed trailer transport configurations for the destination market.
Certificate numbers, issuing bodies and product scope are supplied with the final order documents. Buyers separately verify trailer registration, towing and braking requirements, electrical safety, water and wastewater rules, event-site sanitation requirements, construction-site facility rules and local inspection or permit procedures.
The product is supplied with a one-year warranty from the date of shipment, unless otherwise stated in the sales contract.
|
Covered Section |
Warranty Content |
|
Chassis and frame |
Welded metal frame and structural connections against manufacturing defects |
|
Body panels |
40 mm fiberglass sandwich panels, doors and sealing components against production defects |
|
Axle and running gear |
Torsion axle, brake components, tires and wheel fasteners against manufacturing defects |
|
Water system |
Tanks, pump, pipework, faucet and drainage connections against leakage caused by production defects |
|
Electrical components |
Factory-installed wiring, switches, lighting and control components against manufacturing faults |
|
Sanitary fixtures |
Ceramic toilet, sink and fittings against production defects |
|
Optional equipment |
Air-conditioning unit, water heater, music system and other selected accessories, subject to the original manufacturer's terms |
Warranty exclusions cover damage caused by improper operation, overloading, unauthorized modification, transportation, normal wear, corrosion, consumable parts, third-party equipment, incorrect voltage or force majeure events.
If a manufacturing defect appears, the buyer provides the model, serial number, delivery date, invoice reference, photos or video and a description of operating conditions. TUNE reviews the information and provides replacement parts, repair guidance, on-site support or another solution confirmed in the sales contract.
Technical support is provided by TUNE engineering staff through email, video call or written instructions. Spare parts include tires, brake components, water-pump fittings, faucets, door hardware, lighting modules and drainage connectors, subject to stock and shipping arrangement.
Before placing an order, buyers confirm:
1. Destination country and city
2. Intended application
3. Expected operating period
4. Required quantity
5. Towing vehicle information
6. Exterior color and logo
7. Water and electrical conditions
8. Toilet, sink and ventilation configuration
9. Air-conditioning or heating requirements
10. Local registration requirements
11. Wastewater disposal method
12. Target delivery schedule
TUNE prepares a preliminary configuration for the Construction Site Toilet Trailer based on the destination, application, towing vehicle, sanitation requirements and preferred equipment.
The proposal includes:
● Technical parameter sheet
● Preliminary layout
● Water-system arrangement
● Electrical configuration
● Optional-equipment list
● Inspection scope
● Packaging plan
● Delivery schedule
● Commercial quotation
Address
1711, Building B, Hisense Lingshan International, Yingzhu Sub-District, Huangdao District, Qingdao City, Shandong Province, China
