80 Ton 3 Axle Curtain Side Semi Trailer – for Heavy Pallets & Bulk Freight
This is a curtain side semi trailer – 3 axles, 80 ton payload capacity. Unlike standard curtain trailers built for light pallets, this one has reinforced floor, heavy duty axles, and a stronger roof bow structure. The sides slide open completely. Forklifts load from either side.
We build this for companies moving dense, heavy goods – palletized steel coils, bagged minerals, heavy machinery parts, or bulk industrial supplies. No light duty compromises.
What this trailer actually moves
Heavy pallets – steel coil pallets (up to 35 tons per pallet), engine blocks, industrial gears
Bagged bulk goods – cement, soda ash, fertilizer, animal feed (stacked high)
Construction materials – bricks, blocks, bagged mortar, pipes
Scrap metal – loose or baled
Timber and lumber – stacked and strapped
Large mixed freight – LTL heavy consignments
Not for food-grade light goods or fragile cargo. This is a heavy-duty curtain sider.
Core specifications
| Specification | Value |
| Axles | 3 x 16T (FUWA / BPW / SAF optional) |
| Payload capacity | 80,000 kg (80 tons gross – tested) |
| Overall length (inside) | 40 ft (12.2 m) or custom up to 45 ft |
| Internal width | 2.45 m – 2.48 m |
| Internal height | 2.7 m – 2.8 m (higher than standard) |
| Curtain material | 1.0 mm PVC coated polyester with extra tension straps |
| Curtain operation | Full sliding on double rail system (both sides) |
| Floor | 6 mm steel chequer plate (standard) – reinforced crossmembers at 300 mm spacing |
| Roof | Steel sandwich panels with heavy duty bows (every 600 mm) |
| Rear doors | Double steel barn doors with anti-rack locks |
| Side curtain straps | Heavy duty ratchet straps every 400 mm |
| Brake system | Dual line air brake with ABS (WABCO valve) |
| Suspension | Leaf spring (standard) or air suspension (optional) |
| Tires | 12.00R20 (12 units + 1 spare) or 315/80R22.5 |
| Landing legs | JOST, two-speed, 28T capacity |
Main frame: Q345B steel, web thickness 8 mm, flange 16 mm. Crossmembers: 120 mm channel steel, 300 mm spacing. This is not a standard light curtain sider.
Advantages that matter (no filler)
- 80 ton legal payload with 3 axles
Three 16T axles allow 80 tons gross. You can load heavy industrial pallets without worrying about axle overload fines. Each axle includes a load test certificate for registration. - Side opening saves handling time
Forklift drives in from the side. No backing into a dock. No waiting for dock levelers. For heavy pallets going to mines or factories without loading bays, this cuts unloading time by half. - Steel floor handles forklift abuse
6 mm chequer plate steel floor. Forklift tynes, heavy pallet jacks, and dragging steel coils will not dent or split it. The crossmember spacing is tight – floor does not sag. - Curtain is repairable but built tough
1.0 mm thick curtain (0.8 mm is standard). Extra vertical tension straps prevent ballooning at higher speeds. If damaged, unbolt and replace the panel. No welding. - Strong roof bows prevent collapse
Steel bows every 600 mm. You can stack tall pallets without the curtain pressing into the roof. The roof also supports walking for tarping – but always use caution. - Works with or without side curtain
Pull the curtain fully open or remove it completely. Use as a flatbed for oversized items. Replace curtain in minutes.
Where fleets actually use an 80 ton curtain sider
- Mining supply– Hauling palletized chemicals, grinding balls, bagged reagents to mine sites
- Industrial steel service centers– Moving palletized steel coils from port to warehouse
- Construction material depots– Sacks of cement, bagged aggregates, bricks
- Scrap metal yards– Loading bales or loose scrap via side forklift
- Cross–border heavy pallet freight– Multiple stops, each stop opens curtain, drops pallets, closes and goes
For heavy logistics operations where a flatbed would need tarps and straps, a curtain sider gives you weather protection with faster access.
Compliance & certifications
DOT (FMVSS) : 108 lighting, 121 air brakes (ABS optional)
ECE R107 for curtain side strength and roof strength
ISO 9001:2015 manufacturing
Axle certificates with serial numbers (required for registration)
Reflective tape: DOT C2 pattern (red/white)
Brake system: ADR approved for Australia optional
Available with side underrun bars, rear impact guard, and wide-track axles for certain markets.
What you get with each trailer (80 ton spec)
Chassis: sandblasted, epoxy primer, polyurethane top coat (any RAL)
3 x 16T axles with leaf spring suspension (air optional)
12 tires + 1 spare on steel rims
6 mm steel chequer floor with reinforced crossmembers
Heavy duty sliding curtain system (both sides) – 1.0 mm PVC
Rear barn doors with locking anti-rack bars
Steel roof with bows at 600 mm spacing
Full LED lighting with 7-pin or 13-pin plug
Toolkit, spare bulb kit, curtain repair patches, manual
1 year structural warranty (frame, roof bows, curtail rails)
Optional extras: hydraulic landing legs, load divider rails, E-track for straps, stainless steel hardware, ABS braking, air suspension, bigger tire package (315/80R22.5).
Buying from a new supplier – what to expect
We are a direct manufacturer, not a trading company.
Real production photos of your trailer – not generic catalog images
One unit is fine – no minimum order
Lead time – 30 working days after deposit (heavy duty spec takes longer)
Payment – 30% deposit, 70% before shipment. LC at sight accepted
Drawing approval – We send detailed engineering drawing before cutting steel
Shipping – Ro-Ro or flat rack. We manage export documentation
First time with a new supplier? We offer a video production walkthrough – no hidden factory.