Every unit is designed from scratch to your specification. Choose the type that fits how you travel, then we agree the layout, systems and finish with you in writing.
01
Travel trailers
Illustration
Towable caravans on a single or tandem axle, sized to your trips and your tow vehicle.
Berths, kitchen, washroom and storage set to your order
We accept enquiries for trailers built around a job, such as mobile clinics, command units and hospitality units. Each one is quoted against your equipment list and the space it needs.
Send the equipment list and how many people work inside
How we picture this kind of build. These are drawings, not photos of a delivered unit; every project is designed to its owner.
01 / 07
Specification options
What TRV can design and build into a towable caravan or trailer in 2026, starting with the options that matter most for UAE heat, sand and long desert distances.
Body & exterior
5 options
Seamless fibreglass sandwich body
Bonded fibreglass sandwich panels and moulded caps, joined and finished so no seams show. The fibreglass skins are bonded under pressure or vacuum to a closed-cell foam core, and the walls, roof and floor contain no timber, so there is no wood to rot.
Moulded front and rear caps
A large curve from the front wall into the roof and a tapered rear reduce drag when towing. Moulded in TRV's own fibreglass workshop.
Composite floor with fibreglass underside
Insulated floor of about 40–60 mm. The fibreglass underside resists stones and sand-blasting and limits heat rising from hot asphalt.
Slide-out room
Adds about 0.6–1.0 m of room width at camp. Fitted with sand-tolerant wiper seals, a topper and a manual retract. Not offered on off-road units.
Electric awning with LED strip
Roll-out awning along the door side, typically about 4–6 m long on a large unit, with a dimmable LED strip under the front rail.
Doors & windows
7 options
Interior suite door
A sliding pocket door between the living area and the rear suite, so the bedroom and washroom can be closed off.
Insulated multi-point-lock doors
Insulated sandwich door leaf, made to suit the wall thickness, with compression seals against sand, a built-in fly screen and blind, and an electric fold-out step with an LED step light.
Keyless locks
A keypad, fob or phone replaces the key.
Powered soft-close
A motor pulls the entry door the last few centimetres onto its seals, subject to door supply.
Door-status sensors
Concealed contacts show whether the entry door, and any garage or locker door, is open or closed (and locked, where a lock sensor is fitted), on the touch screen and in the phone app.
Toy-hauler garage doors
A ramp door that lowers into a railed patio, a full-width screen door behind it, and a sealed partition door between the garage and the living area.
Flush tinted windows and panoramic front
Flush double-glazed windows with solar-control tint (tint level set to local rules) and built-in blinds. The panoramic front and roof windows get insulated covers when parked, and the front window a stone guard for travel.
Insulation & climate
4 options
Variable-speed roof air conditioners
Two or three units of about 2.2–3.6 kW each. Ratings are usually quoted at about 35 °C, so we size up for 45–50 °C summers. Low-profile heat-pump models (about 22–25 cm high) also heat on desert winter nights, which makes a gas-free build possible.
Closed-cell foam core
An XPS or polyurethane core of about 0.022–0.035 W/m·K. Walls are about 30–40 mm; the roof and floor get the thickest panels, about 40–60 mm.
Cool white roof
White gelcoat or a reflective coating that reflects roughly 70–85% of the sun's energy when clean. Dust lowers this, so the roof is designed to be easy to wash.
Fewer metal heat bridges
Bonded panels without a metal frame, composite fixing points, and door, window and hatch frames with a thermal break. Some metal still passes through at chassis, axle and hardware fixings.
Power
5 options
48 V lithium (LFP) house battery
About 10–20 kWh in a large twin axle, sized per order to run one or two ACs through the night without shore power. Recharging after summer AC use needs driving, a generator or a hook-up as well as solar. Mounted low inside the insulated, cooled body, since LFP cells are normally charged only up to about 45 °C. Compact units use 12/24 V banks of about 2–8 kWh.
Inverter/charger with battery boost for weak hook-ups
About 3–5 kVA per unit. The battery supports weak farm or campsite hook-ups when the ACs start, and switchover takes milliseconds.
Roof solar array
About 1–2 kW on a large twin axle, mounted with an air gap for cooling and with room to clean off dust.
Charging from the tow vehicle
A DC-DC charger of about 400–700 W per unit, which can step up to 48 V. It needs dedicated heavy cabling and is mounted out of the sun.
Sodium-ion batteriesEmerging
Early technology. Makers claim better low-temperature performance and improved safety. We offer it only as an emerging option; lithium (LFP) stays the default.
Smart control & connectivity
5 options
TRV smart control
KNX control, DALI dimmable lighting, a touch screen, a phone app, an energy-flow display and a Matter bridge for voice assistants.
Remote pre-cooling and alerts
Start the ACs before you arrive. Get alerts on cabin heat, battery, tanks and door status over mobile data.
Wireless sensor suite
A battery shunt, non-contact tank sensors, cabin temperature and humidity, and tyre pressure and temperature on every wheel.
5G router with roof antenna
Dual SIM or eSIM with a low-profile MIMO roof antenna. This is the main link on UAE highways and in towns.
Satellite internet ready
Roof mount, power and cabling for a flat-panel low-orbit terminal (about 25–45 W), for use where licensed service is available. UAE service availability is confirmed for each order.
Water, kitchen & bathroom
6 options
Gas-free galley
An induction hob of about 1.8–3.5 kW, a compressor fridge, and electric oven and water heating. With no gas vents, there are fewer openings for dust.
Outdoor kitchen
A side locker on the door side, between the entry door and the axles, under the indoor kitchen so the plumbing is shared. It has a slide-out induction cooktop, sink and worktop that you use under the awning.
UV-C drinking-water treatment
Sediment and carbon filters plus a mercury-free UV-C LED unit that disinfects water at up to about 8 L/min.
Insulated tanks
Fresh, grey and black tanks insulated against heat, with capacities set in the specification for long desert stays.
Lightweight cabinetry
Aluminium-honeycomb or foam-core panels, roughly 30–50% lighter than plywood, that do not swell in humidity.
Recirculating showerEmerging
Filters, UV-disinfects and reheats shower water in a closed loop. Makers claim large water savings. Early technology.
Safety
4 options
Electronic anti-sway control
Sensors detect snaking caused by crosswinds or passing trucks and brake the trailer until the car and trailer settle.
Towing cameras
Wireless rear and side cameras of about 170°. Where your tow vehicle supports a trailer camera, we can prepare the trailer for the vehicle maker's own accessory.
Battery-compartment fire suppression
A heat-activated extinguisher in the battery and inverter compartment, linked smoke and CO alarms, and an alert to your phone.
Full-LED exterior lighting
A continuous LED rear light band, side markers, and dimmable step and ground lights at the entry door.
Running gear
6 options
Independent air suspension
Trailing arms with air springs give about 130–150 mm of wheel travel. Ride height is raised or lowered by remote.
Hydraulic disc brakes or ABS
Electric-over-hydraulic disc brakes resist fade on long mountain descents. ABS on electric brakes is the alternative. Either is matched to your tow vehicle.
Automatic levelling
One-button hydraulic or electric levelling on four corner legs with large sand pads, rated for the trailer's full weight.
Remote motor mover
Motors on the wheels move a heavy twin-axle trailer by remote in tight driveways and storage yards, where a mover rated for the trailer's weight and compatible with its suspension is available. Not for soft sand.
Weight planning
Batteries and tanks sit low near the axles to keep nose weight steady. A fully equipped 8–9 m twin axle can exceed 3.5 t, so we check the tow vehicle and licence first.
Electric-assist axleEmerging
A motor in the axle helps on climbs and recovers energy into the battery when braking. Early technology; UAE registration rules must be confirmed first.
Every item is an option, configured per project and fixed in your written specification. Values are typical ranges, not guarantees. Items marked emerging are early technology, offered only after a separate study. We publish no prices: each project is quoted in writing.
01 / 07
Specification options
What TRV can design and build into a fifth-wheel trailer or toy hauler of about 9–12 m in 2026, from the newest realistic technology to proven options, each chosen for UAE heat, sand and long desert distances.
Body & structure
6 options
Fibreglass-faced sandwich walls
A welded aluminium cage bonded under vacuum to a gel-coated fibreglass skin and a rigid foam core, about 50–75 mm thick, for walls, slide ends and slide roofs.
No wood in the shell
Glass-fibre/polypropylene backer sheets instead of plywood behind the skin, and rot-proof PET foam cores in the floor, slide floors and ramp door. Suppliers describe them as lighter than plywood.
One-piece moulded caps
Front and rear caps moulded in TRV's own fibreglass workshop, with LED housings moulded in and a stone-chip film on the lower front.
Engineered frame with drop-frame basement
Wide-set I-beam rails, a reinforced gooseneck with larger gussets, and a dropped mid-frame for deep pass-through storage and a lower centre of gravity.
Weight, pin-weight and axle planning
Pin weight is typically about 15–25% of trailer weight, and an equipped 11–12 m unit is often about 7–10 t gross, on twin or triple axles sized to the loaded weight; a long-garage toy hauler often needs three. We check the pickup, hitch and licence first.
Vacuum-infused composite panelsEmerging
Moulded monocoque composite shells are in limited production on small trailers. At 11–12 m, infused caps, roof sections, slide boxes and ramp panels are a realistic first step.
Doors, windows & lighting
5 options
One insulated entry door
A single kerb-side door at the foot of the bedroom steps: about 38 mm insulated, keypad or fob lock, deadbolt, built-in screen and an electric step.
Frameless bonded tinted glazing
Flush, bonded double-glazed windows with solar-control tint. True sealed insulated-glass units with a solar-control coating on request.
Panoramic rear window with motorised shades
A rear-lounge window across most of the rear wall, with solar-control glass and two-layer shades (sheer and blackout) scheduled by smart control.
Foam-lined baggage hatches
Flush gas-strut hatches over the pass-through basement, lined with about 20–30 mm of foam and sealed against fine sand.
Integrated LED lighting
LED signatures moulded into the caps, LED strips in the awning, a lit entry step and ramp patio, all dimmable from the panel or app.
Insulation & climate
5 options
Variable-speed heat-pump ACs
Two or three ducted or roof units of about 4–4.4 kW (13,500–15,000 BTU/h) each, variable-speed with heat pump; larger units of about 5.3 kW (18,000 BTU/h) are newly launched and checked for availability per order. Ratings are usually quoted near 35 °C, so we size up for 45–50 °C summers.
48 V DC bedroom or garage AC
About 3–3.5 kW today, running straight from the battery with no 230 V inverter conversion; larger 48 V units of about 4.4 kW are at prototype stage in 2026 (emerging). A supplementary unit for the bedroom at night. For a 4 m garage in 45–50 °C one such unit may be too small, so garage cooling is sized per order.
UAE heat envelope
Thicker roof and floor insulation with radiant foil, an enclosed underbelly, an insulated front section, a vented roof space and a light body colour.
Insulated slide-out rooms
Slide walls, roofs and floors built like the main walls, with double wiper and bulb seals and slide toppers to keep heat and fine sand out.
Cool reflective roof
A white walkable one-piece membrane, or a TRV-moulded fibreglass roof skin in light gelcoat, with no lap seams across the roof surface; edges are sealed and inspected at service.
Power
6 options
48 V lithium (LFP) house battery
About 15–30 kWh, sized per order for overnight bedroom-zone AC without shore power. Fitted in an insulated, sealed basement bay with a cooling duct from the AC system, under the raised section just ahead of the entry door, since LFP is normally charged only up to about 45 °C.
Charging while towing
A DC-DC charger of about 0.4–0.7 kW, or a second 48 V alternator on the pickup of about 3–8 kW with a heat-sensing regulator, refills the bank on long drives.
Back-contact roof solar
About 1.5–2.5 kW of panels that makers say lose less output in partial shade and heat, mounted with an air gap and cleaning access. Roughly 6–14 kWh on a clear day depending on size and season, before dust losses (estimate).
48 V inverter/charger, 230 V / 50 Hz
About 5–10 kVA in total, with battery assist for weak farm or camp sockets, switchover in about 20 ms or less, and an input for an optional backup generator. Ratings derate in heat, so it is mounted in the conditioned battery bay.
Battery-bay protection
Thermal sensors, BMS shutdown and heat-activated suppression in the battery bay, using units whose ratings exceed the real summer bay temperature.
Powered trailer axleEmerging
An electric axle that assists on climbs and recovers energy into the battery. Early technology: current RV units are mainly on lighter travel trailers and rated below this trailer's axle loads, so it is offered only as an engineering study, subject to UAE registration rules.
Water, kitchen & bathroom
6 options
Whole-trailer water treatment
Sediment and carbon-block filters, a scale cartridge and mercury-free UV-C LED disinfection (about 9–11 L/min) for tanker, farm or villa water.
All-electric induction galley
An induction hob of about 1.7–3.6 kW and a convection microwave, with no gas cylinders in 50 °C lockers. Needs the 48 V bank and about 5 kVA of inverter.
Large compressor fridge
A 12 V compressor fridge up to residential size (about 560 L), which keeps cooling in Gulf heat where absorption fridges struggle.
On-demand hot water
A tankless gas heater of about 10–18 kW, or a small electric heater in an all-electric build, since summer tank water is already warm.
Gas safety, if gas is kept
Combined CO and gas detectors, a smoke alarm in each sleeping area and a crash-sensing gas regulator, reporting to the app where connected detectors are fitted.
Water-recycling showerEmerging
Filters, UV-treats and recirculates shower water; makers claim up to about 90% less water. Few RV products and thin service support, so a normal shower stays as fallback.
Layout & toy-hauler garage
6 options
Raised master suite
The bedroom sits on the raised front over the hitch, with a walk-in wardrobe and space for a washer-dryer.
Rear living with a panoramic window
Recliners or an L-shaped majlis-style sofa facing the rear window, a mid kitchen with an island, and opposing slide-outs for width.
Flush-floor slide-out rooms
Two or three rooms on an 11–12 m unit, on under-floor rack-and-pinion or hydraulic mechanisms for a step-free floor, with a manual override and heat-rated seals.
Bunk room or second bathroom
A mid-trailer bunk room or office for families, or a guest half-bath beside the main walk-in bathroom.
Toy-hauler garage
About 2.5 m or 4 m long, with a wall to the living area, its own AC sized per order, washable walls, tie-down points and fold-down sofas or a power-lift ceiling bed.
Ramp door that becomes a patio
The garage's rear ramp door lowers level on cables, with fold-up railings, a screen and LED lighting. Powered ramp and one-piece composite panel on request.
Smart control & connectivity
5 options
TRV Command smart control
Our own system on KNX and DALI: dimmable lighting, touch screen, phone app, energy-flow display, pre-cooling scenes and a Matter bridge for voice assistants.
Open-bus control over RV-C/CAN
Levelling, slides, awning, tanks, battery and AC on one open bus: one-touch levelling, then guided slide and awning setup with the operator present, plus hard-wired override switches for slides and ramp.
LEO satellite internet
A flat roof terminal: compact units draw about 25–40 W, in-motion units about 100–150 W. Service is new in the UAE, so vehicle-use plans are checked per customer.
5G multi-network router
Dual-SIM 5G with a low-profile roof antenna, failing over to satellite or camp Wi-Fi, and carrying the app and cameras while the trailer is stored.
Offline voice controlEmerging
Local wake-word voice control of lights, climate and power scenes that works without signal. It is available on smart-home platforms and early in RV control, so we offer it as a study; Arabic depends on the platform.
Running gear & safety
6 options
Independent suspension
Rubber-torsion or coil trailing arms with shock absorbers, to protect slides and cabinetry; makers quote about 125 mm of wheel travel against about 40–50 mm for leaf springs.
Disc brakes or ABS with sway control
Electric-over-hydraulic disc brakes for long descents, or ABS with sway mitigation and emergency boost. The two are often not combinable, so we choose per project.
Cushioned pin box
A coil- or air-spring pin box that absorbs jolts between pickup and trailer; makers claim about 40–70% less fore-and-aft chucking than a rigid one.
17.5-inch tyres with pressure monitoring
Commercial-grade high-ply tyres with pressure and temperature sensors on every wheel, since UAE road surfaces reach about 60–70 °C in summer.
Six-point automatic levelling
One button lifts the trailer off the hitch, levels and steadies it on six jacks, and remembers the hitch height for re-coupling; releasing the hitch stays a manual step. Large pads for sand and soft ground.
Towing cameras and blind-spot radar
Rear, side and entry-door cameras with recording, plus rear-corner radar for blind-spot and cross-traffic alerts, in sealed, heat-rated housings.
Every item is an option, configured per project and fixed in your written specification; none is standard equipment. Values are typical ranges, not guarantees or TRV test results, and maker figures are quoted as maker claims. Items marked emerging are early technology, offered only after a separate study. The pickup, hitch, axles and licence are checked for each build. We publish no prices: each project is quoted in writing.
01 / 07
Specification options
What TRV can design and build into a pop-up camper in 2026, starting with what matters most for UAE heat, sand and long desert distances.
Body & structure
6 options
Lower body and lid, each one moulded piece
The lower body and the lid are each moulded as one fibreglass shell, using boat-building methods, so neither has seams of its own. Moulded in TRV's own fibreglass workshop.
Timber-free foam-core sandwich
Fibreglass skins of about 1.5–2.5 mm on a closed-cell foam core: walls about 25–40 mm, lid and floor about 30–50 mm. Honeycomb cores are used only in furniture and interior panels, where weight matters most. Heat-stable PET foam can be used in sun-facing panels.
Hard insulated pop-up walls
Rigid foam-core wall panels rise with the lid instead of canvas, and slide down just inside the lower body when folded. They give about 1.9–2.0 m of standing height inside, take proper framed windows, and keep the cabin quieter and easier to cool.
Insulated soft-wall option
Lighter ripstop polycotton walls with a multi-layer reflective liner, also used for fold-out bed ends on family layouts. Suited to the cooler months; hard walls are the better choice for air-conditioned summer use.
Low, rounded nose and stone protection
A moulded front with rounded edges and a folded height of about 2.0–2.2 m, aimed at the tow vehicle's roofline, plus a stone-guard plate and a chip-resistant lower band.
Lightweight furniture
Honeycomb-composite or thin aluminium cabinetry instead of plywood. It leaves more weight for water and batteries and does not swell in coastal humidity.
Roof lift, door & windows
6 options
Four-actuator electric roof lift
Four sealed 12/24 V linear actuators kept in step by one controller, with gas-strut assist and dust boots. Sized for the lid's full load, including solar, the awning and any roof-mounted AC.
Parallel or wedge lift
A parallel lift raises the whole lid for standing height everywhere. A wedge lid hinges at the front and rises at the rear, giving standing height over the entry area only, with a simpler mechanism and less wall area in the sun.
Single two-leaf entry door
The only exterior door, on the right-hand (kerb) side behind the axle. A lower leaf in the body and an upper leaf in the raised wall close as one door, with compression seals, a fly screen and a keypad lock. It is used with the roof raised.
Compression-sealed hatches
Lift-up hatches for the kitchen, fridge and services, with compression latches and continuous seals against dust. The battery bay vents through a filtered louvre.
Double-glazed tinted windows
Flush double acrylic windows, hinged rather than sliding for a better dust seal, with built-in reflective blackout blinds and fly screens.
Skylight over the bed
A flush, marine-style roof hatch with blind and screen for a view of the night sky. The glazing is kept small and tinted against daytime heat.
Insulation & climate
5 options
Under-bench AC
About 2–3 kW of cooling from a reverse-cycle unit inside a bench base (soft-start or inverter compressor where available), ducted into the cabin. It keeps weight off the lifting lid and low in the trailer, and needs 230 V from the inverter or external power. Its condenser air comes through a filtered, raised intake to limit sand. Capacity falls in 45–50 °C heat, so we size up.
Low-profile DC roof AC (alternative)
Runs straight from a 12/24/48 V battery with no inverter: about 2.3–3 kW of cooling at about 250–650 W. Rated figures; output falls in 45–50 °C heat. It adds about 30 kg to the lid, so the roof lift is sized for it.
Thermostatic roof fan
A 12 V vent fan with powered lid, rain sensor and reversible flow clears trapped heat before the AC starts, so the AC works less.
Positive-pressure dust filtration
A filtered 12 V fan lightly pressurises the cabin while towing, so less dust is drawn in through seams and the roof joint.
Heat-focused shell
Light-coloured gelcoat, reflective blinds and small, tinted window areas keep the cooling load down.
Power
6 options
Lithium (LFP) house battery
About 1.2–3 kWh at 12 V without overnight AC. About 5–10 kWh at 24 or 48 V to run the AC through the night, a bank weighing roughly 50–100 kg. Built-in BMS with phone monitoring.
Shaded, vented battery bay
LFP charging usually stops at about 45–55 °C, and summer air outside can be close to that. So the battery sits low over the axle in an insulated, shaded bay closed off from the cabin. When the AC runs, a small fan draws cooled, filtered cabin air through a one-way flap, over the cells and out through a louvre. Cell temperature shows in the app.
DC-DC drive charger
Charges from the tow vehicle's smart alternator while driving (about 0.3–0.7 kW from a 12 V vehicle; a step-up charger is used for 24/48 V banks). On 12 V builds it also takes solar, with solar given priority; on 24/48 V builds the solar goes to the power unit's MPPT. A sealed unit, mounted in the shade.
Lid solar plus a portable panel
About 200–400 W on the lid, plus a folding panel that sits in the sun while the camper parks in shade. Output drops in heat and dust, so overnight AC also relies on drive charging or external power.
All-in-one power unit
Inverter of about 1.6–3 kVA, charger, solar MPPT (used on 24/48 V builds) and monitor in one box, with automatic switchover and battery boost when external power is weak, set for UAE 230 V / 50 Hz. It sits in its own vented compartment beside the battery bay, so its heat stays away from the cells.
Sodium-ion batteryEmerging
No lithium and a wider quoted temperature range, but camper packs have little track record in 45–50 °C use. Offered on request, after a separate study; LFP stays the default.
Kitchen, water & outdoor living
6 options
Gas-free slide-out kitchen
An induction hob, sink and worktop on locking runners, under a lift-up hatch on the door side. The hob is a low-power unit of about 0.2–1.2 kW, or a two-zone hob power-limited to match the inverter, with full power on external power. No gas cylinder sitting in 50 °C heat.
Compressor fridge-freezer on a slide
About 40–100 L, dual-zone, reached through a side hatch. It sits in a shaded, ventilated compartment because its energy use rises sharply at 45 °C.
UV-C water treatment
A carbon pre-filter and a 12 V UV-C LED unit at the tap treat about 2–8 L/min of tank water. It is an extra safety step, not a substitute for filling from safe sources.
Insulated tank and outdoor shower
A fresh-water tank mounted low near the axle and insulated against heat, with an outdoor shower point. Capacity is set in the specification.
270° awning with LED
An awning on the lid edge with support legs, swinging around the door side and rear corner, with warm, dimmable, low-glare LED in its arms. It rises with the roof and is stowed before the roof is lowered.
Recirculating showerEmerging
Filters, UV-treats and reuses about 6 L in a loop, against roughly 20 L or more for a normal camp shower. Niche and in limited supply. Offered on request, after a separate study.
Smart control & connectivity
4 options
TRV smart control
KNX control, DALI dimmable lighting, a touch screen, a phone app, an energy-flow display and a Matter bridge for voice assistants. It can also show roof-lift and door status.
Sensor network and phone alerts
Battery charge, solar, tank level, cabin and battery temperatures, and tyre data on one network (open RV-C CAN bus or Bluetooth), with alerts and remote AC start before you arrive.
5G travel router
Dual SIM or eSIM at about 5–12 W, with a low roof antenna and automatic failover to campsite Wi-Fi, or to a satellite terminal where one is fitted and the service is available.
Satellite internet ready
Power and cabling for a compact terminal for a low-orbit satellite service (about 25–40 W average), lid-mounted or set up beside camp. Mobile use in the UAE is not yet confirmed; we check availability and terms for each order.
Safety
5 options
Roof-lift safety
Hold-to-run buttons, end-stop sensors at the top and bottom, an interlock that stops the lid moving while the door is open, manual lowering if power fails, and a check that the awning is stowed before the roof lowers.
CO and smoke alarms, fire blanket and extinguisher
A hard-wired CO alarm and a smoke alarm by the bed, still worth fitting in a gas-free build because of generator, vehicle or campfire fumes nearby, plus a fire blanket and extinguisher within reach. A battery temperature or gas sensor can be added.
Tyre pressure and temperature monitoring
Bluetooth sensors on each tyre warn of leaks, heat on hot asphalt, or tyres left soft after airing down for sand.
Wireless rear camera
A digital wireless camera at the rear with about 20–100 m range, so no cable has to pass through the hitch.
Drawbar load sensing
A sensor in the jockey wheel or coupling shows the load on the coupling on your phone while you pack, against the target set for your tow vehicle and coupling (often about 7–15% of trailer weight, never above the vehicle's rated limit).
Running gear
6 options
Independent off-road suspension
Trailing arms with coil springs and twin dampers per side give about 140–200 mm of wheel travel, depending on the system. Air springs with an onboard compressor are an option for levelling and re-inflating tyres.
360° articulating coupling
Lets the trailer twist and pitch on rough ground far beyond what a ball hitch allows. It needs a matching hitch on the tow vehicle.
Electric-over-hydraulic disc brakes
Proportional disc braking that sheds sand and heat better than drum brakes, with a breakaway system. It needs a brake controller in the tow vehicle; we check this with your vehicle. Electric drum brakes are the lighter alternative.
ABS with sway control
Stops the wheels locking in hard braking and applies the trailer brakes automatically to bring a swaying trailer back in line, typically above about 60–65 km/h. Availability depends on the brake system chosen; brake type and trailer weight are checked per order.
Corner levelling legs
Four corner legs with sand pads to steady the camper with the roof up. One-button electric auto-levelling, or air-suspension levelling where air springs are fitted, is an option.
Weight planning
Battery, tank and spare sit low near the axle. Comparable hard-lid off-road campers weigh about 0.9–1.1 t empty; hard walls, AC and a large battery add to that, so we check your tow vehicle first. Weight and folded height are fixed in your specification.
Every item is an option, configured per project and fixed in your written specification. Values are typical ranges, not guarantees. Items marked emerging are early technology, offered only after a separate study. We publish no prices: each project is quoted in writing.
01 / 07
Specification options
What TRV can design and build into a special-purpose trailer in 2026, shown as a 10–12 m mobile clinic concept and built around your equipment list and UAE heat.
Body & structure
6 options
Wood-free fibreglass sandwich body
Fibreglass skins bonded to a closed-cell insulating core, with openings precision-cut to a drawing; the body is built in our Sharjah workshop. Walls about 30–45 mm, roof and floor about 40–70 mm.
Vacuum-infused mouldings
Vacuum-infused mouldings can be specified for the front and rear caps, roof shell, slide-out boxes and hatch lids: even thickness, fewer voids and lighter parts that leave more payload for equipment.
Thermal-break hardpoints
High-density PU or fibreglass inserts around the slide-out, lift, mast foot and roof units, so metal and timber paths from the outer skin to the inner skin are kept to a minimum.
Elastic bonded joints
Stiff-elastic structural adhesives and UV-stable sealants replace most screws, chosen for skin temperatures above about 80 °C and the desert's day-night swing.
Flush-floor slide-out
One or two rooms about 0.6–1.0 m deep, each adding roughly 2–5 m²; the floor ends level for wheelchairs and trolleys, with double seals, a topper and full insulation.
Full-length expanding sides
Hydraulic side walls that widen the room from about 2.5 m to about 4.5–5 m on site, for large clinics, lounges or command rooms; heavier, and often tri-axle.
Fit-out for the job
6 options
Mobile clinic layout
Waiting and registration at the door, a staff and lab counter mid-body, and one or two exam rooms at the far end, built around the medical devices the client supplies.
Wheelchair lift at the patient door
An under-floor platform lift in an enclosed cassette, typically rated for about 300–350 kg, at the single entry door; a floor about 0.7–1.0 m high would need a ramp about 8–12 m long.
Easy-clean clinical finishes
A one-piece welded vinyl floor coved about 100 mm up the walls, sealed junctions, non-porous linings, stainless or solid-surface worktops and touch-free taps.
Command unit provisions
Operator desks, cooled equipment racks and a telescopic mast for cameras, lights and antennas: electric roof-mounted up to about 8 m, or pneumatic about 6–15 m; taller masts need guying and a stability check.
Hospitality provisions
A gas-strut serving hatch whose lid becomes a canopy, a fold-down stainless counter, insulated sliding glazing and powered awnings; a fold-down side deck on request.
Switchable privacy glassEmerging
Glass that turns opaque at a touch for exam rooms or VIP lounges; still early in trailers, so heat durability and weight are checked with the supplier first.
Insulation & climate
6 options
High-ambient inverter air-conditioning
Typically 3–4 rooftop or ducted units of about 2.5–5.3 kW cooling each, with soft start; chosen for their maximum-ambient rating, with spare capacity for a busy door.
48 V battery air-conditioning
Units of about 2–3.5 kW cooling run straight from the battery, keeping racks or a rest area cool at night with no generator; paired with high-ambient units for midday peaks.
Filtered exam-room air
A dedicated HEPA air path with pressure zoning, about 12 or more air changes an hour, dust pre-filters and filter alarms; infection-control acceptance stays with the client.
Reflective skin, heat-rated core
A white or solar-reflective roof and upper body, infrared-reflective pigments for any dark livery, and PET, PVC or PU cores (about 0.022–0.035 W/m·K) under hot surfaces.
Dust-proof travel ventilation
A filtered fan, typically rated about 1,000–2,000 m³/h free-air, keeps the body at slight overpressure while towing, with compression seals on the door, every hatch and the slide-out.
Vacuum insulation panelsEmerging
About 0.004–0.008 W/m·K for thin floors, doors and slide-out walls; they must never be drilled, and are still early in towable bodies.
Power
6 options
48 V lithium (LFP) bank with networked BMS
About 15–40 kWh for a clinic or command unit and about 20–60 kWh for an all-electric kitchen, in a cooled cabinet inside the body with a gas vent to outside; the BMS stops charging when cells run too hot.
Stacked inverter/chargers with battery assist
Two or three units, about 6–15 kVA in single or three phase; the battery tops up a weak socket or small generator so ACs and equipment start without tripping.
Clean power for client equipment
An online UPS (typically about 1–6 kVA per critical group), an isolation transformer and dedicated surge-protected circuits, kept apart from compressors and kitchen loads.
High-efficiency roof solar
n-type or back-contact panels of about 22–25% efficiency, about 1.5–3 kW on a 10–12 m roof (less on shorter units), with an air gap and walkable zones; they cover base loads, not midday AC.
Auto-start generator and towing charge
A diesel set of about 3–6 kW for small or low-cooling units, or about 8–15 kW for a 3–4 AC clinic, in a filtered, sound-insulated enclosure; 15–30 kW sets go over the axles or on a generator trailer. Towing charge about 0.3–1 kW DC-DC.
Sodium-ion batteriesEmerging
Early technology with no lithium or cobalt; it has little field record yet in towable bodies in 45–50 °C heat, so LFP stays the default and the battery bay is designed for a later swap.
Smart control & connectivity
6 options
TRV smart control
KNX control, DALI dimmable lighting, a touch screen and phone app, an energy-flow display, and preset modes such as clinic, transit and night on one panel.
Remote monitoring for fleets
A vehicle data-bus gateway sends battery status, cabin and rack temperatures, tank levels, and generator, lift and door status to an app and a fleet web portal, with alerts.
Matter bridge for voice assistants
Exposes lights, AC and blinds to mainstream voice and phone platforms; voice language depends on the platform, and Matter energy device types are still emerging.
Multi-link 5G router
SIMs from more than one operator, satellite and site Wi-Fi combined with fast failover, secure VPN tunnels for clinic or command data, and Wi-Fi for staff.
Flat-panel satellite internet
An in-motion flat panel for low-orbit satellites, about 75–150 W, typically rated to about 50 °C ambient, so mounting, airflow and summer behaviour are checked per project; UAE service is confirmed and the contract is the client's.
Deployable private networkEmerging
Rack space, cooling, power, mast and cabling for a client-supplied private LTE/5G 'network in a box'; spectrum and radio licensing rest with the client and the regulator.
Water, kitchen & washroom
5 options
Filtration with UV-C LED
Sediment and carbon filters followed by a 12 V UV-C LED chamber that switches on with the flow; water-quality targets for clinical use are set by the client or authority.
Shaded, insulated tanks
Fresh, grey and black tanks sized to staff and visitor numbers, set low over the axles and insulated against summer heat.
Accessible washroom pod
A seamless fibreglass wet room with a wide inner door, grab rails and turning space where the brief needs one; accessibility approval stays with the client or authority.
Water-saving staff shower
A recirculating loop using about 5–10 L per shower, with filtration and UV-C in the loop, or a cold-water recovery valve; water-quality acceptance stays with the client.
All-electric induction kitchen
For hospitality units: induction of about 3–3.7 kW, espresso, water boilers and refrigeration on battery and inverter, with no LPG in the serving area.
Safety
5 options
Automatic aerosol suppression
Sealed canisters that fire automatically in the generator, electrical and battery bays, each covering about 0.5–18 m³, for electrical and generator fires; battery protection also relies on the BMS, cell monitoring and a gas vent.
Networked smoke, CO and LPG alarms
Hard-wired 12 V alarms that report to the control panel and send phone alerts while the unit is parked unattended.
Kitchen hood with automatic suppression
For units that fry or grill: a hood about 1.2–3.6 m long, wet-chemical nozzles and a gas or power shut-off, installed and inspected by a licensed fire-safety contractor.
Deployment interlocks
The slide-out, lift and mast move only when the unit is parked and level, and the mast warns or lowers above a set wind speed.
Trailer cameras and tyre monitoring
Rear and side cameras to the tow-vehicle screen, and pressure and temperature for every trailer tyre, with early warning on hot asphalt.
Running gear
6 options
Weight budget sets the axles
Every item on your list is weighed before design; 10–12 m units commonly land at about 6–12 t, twin axle at the lower end and tri-axle at the upper.
Galvanised or aluminium chassis
Hot-dip galvanised steel or an aluminium sub-frame against coastal salt, with underbody protection; the coupling type is agreed to suit the tow vehicle.
Heavy-trailer braking
Electric-over-hydraulic disc brakes with breakaway, or air brakes with trailer EBS (including ABS) when truck-towed; electronic sway mitigation and ABS on hydraulic systems only where the axle and brake supplier offers it.
Trailing-arm air suspension
Trailing-arm air suspension, independent where axle loads allow, with air springs and dampers that self-level under load and protect medical and IT equipment on desert tracks and speed humps.
Automatic levelling jacks
Four to six electric or hydraulic jacks typically level the unit within a few minutes from a keypad or phone, on wide pads for sand and hot asphalt.
Electric-drive axleEmerging
A motorised axle that pushes on climbs and recovers energy into the battery when braking; early technology, checked first against the tow vehicle and registration.
Every item is an option, fixed per project in your written specification. Values are typical ranges, not guarantees; emerging items need a separate study. The client supplies medical devices and obtains medical, accessibility, food, fire and radio approvals. Each project is quoted in writing.
Fleet orders
Need several identical units? We quote repeat units to one written specification.
