Trailer PRONAR T683U

Used on the trailer PRONAR T683U replaceable micro-rubber seals, fixed on the upper, side and the back frame, makes it ideal for the transport of the bulk products of small grain size, such as for example rape. Therefore, the central pillars and the rear connections between the walls and extensions are fitted with EPDM seals, which addictionally increase the tightness of the trailer. Suspension element have been selected so as to make maneuvering with the trailer easy and ensure their high stability. Permissible total weight of 20 tones is the size at which are included in the optimal way both economic aspects (price of the trailer and its low costs of ownership) and utility (optimal load capacity and cargo capacity, functionality, reliability and durability).

  1. 1
    For the transport of any type of loose materials, pallets, and feed bales.
  2. 2
    Components of walls, chassis and body of trailers are made with thicker sheet than the competitors, use of the modern coating increases the durability.
  3. 3
    In standard electrical installation, crank hand brake, supporting wedges, pneumatic brake system.
  4. 4
    Thanks to the addictional seals especially suitable for the transport of the bulk products of small grain size, e.g.rape.
  5. 5
    Chassis frame have reliable and powerful tripartite tipping system and reinforced withstanding extreme loads drawbar with hydraulic scissor-type support.


Technical data
Technically permissible total weight: 20000 [kg]
Permissible total weight: 20000* [kg]
Load capacity: 15230** [kg]
Empty weight: 4770 [kg]
Load volume: 17,3 [m 3]
Loading space: 12,3 [m 2]
Loading case inside lenght: 5100 [mm]
Loading case inside width: 2420*** [mm]
Overall dimensions (lenght/width/height): 6800/2550/2790 [mm]
Sidewall height: 800+600 [mm]
Floor/wall thickness: 5/2,5 [mm]
Platform height, measured from the ground: 1350 [mm]
Wheel track: 1960 [mm]
Suspension: parabolic springs
Hitch-ring load: 2000 [kg]
Tyres: 385/65 R22,5 RE
Maximum speed: 40 [km/h]
Tipping system : 3-side
Tipping cylinder (stroke / oil demand / pressure) 1980mm/18L/200bar
Tractor power requirement: 104/76,4 [hp/kW]
Tipping angle (backwards/sides): 50/46 [˚]
* depends on the road regulations in each country
** depends on the road regulations and equipment
*** width of the loading case suitable for  EUROPALET transport
Standard equipment
Loading case with universal system of opening walls
Platform equipped with a special sealing system
3-side tipping system of the loading case with ball joints with the rear shock absorbers of optimum spacing
Selection of the direction of tipping by two pins that protects against incorrect handling
width of the loading case suitable for  EUROPALET transport
Reinforced floor panel with central locking mechanism
Sidewalls made of profile PF800mm, 60 mm from the rim, with forged hinges and locks
Extensions made of profile PF600mm, 60 mm from the rim, with forged hinges and locks
Closed spaces, walls protected by laser weld
The side walls shared with central pillar
Frame: rectangular with closed profiles
Axles on 60 km/h
Universal fixed drawbar to connect to the lower or upper hitch of the tractor, amortized with the rubber springs
Drawbar towing hitch: rotary with towing eye 50mm
Drawbar support: hydraulic supporting leg (scissor type)
Drawbar support: hydraulic supporting leg (scissor)
Braking system: double line air with coupling to the second trailer
Crank hand brake
12 V lighting system with rear electric socket, LED lights
Rear lamps with protective grating
Coiled connecting cable lighting system
Side marker lights
hydraulic tipping system with cut-off valve
Tipping servo-motor of 3-side tipping system
Tandem suspension on 4 parabolic springs, wheelbase 1360mm, fixed axles equipped with drum brakes 406×120
Axles for 60km/h
Rear grain hatch with a lever in a rear wall
Handle with support hydraulic hoses for fittings of plug to the tractor
Service support of the Tool box
Wheel chocks + galvanized racks (2 pcs)
Foldable rear protection
Rear mudguards
Ladder and steps facilitating the access to the loading case
The rear cover, EC type-approval, folding
Double-component chemically hardened painting materials, UV-resistant
Tipping frame colour: red RAL 3000 PRONAR
Side walls painting colour: green RAL 6010 PRONAR
Additional equipment (optional)
Drawbar hitch: fixed with towing eye Ø40mm according to DIN 11026 to connect with the upper hitch tractor
Drawbar hitch: fixed ball-type K80mm to connect with the spoon ball hitch of the tractor
Extensions made of profile PF600mm
Sidewalls extensions made of profile PF800mm instead of standard sidewall extensions PF600mm
Front extension made of  600mm perforated steel sheet with 10 mm square wholes
Front extension made of  800mm perforated steel sheet with 10 mm square wholes
Braking system: double line air with ALB
Combined braking system (double line air + with electric hydraulic safety valve and regulator of braking forces)
Operator’s platform
Rolled cover with frame with demountable central pipe and lateral supporting pipes
Rear grain chute
Rear automatic hitchUNIMAR
Rear automatic hitch RO*400A5100
Side underrun protection
Tyres 385/65R22,5
Tyres 425/65R22,5
Tyres 445/65R22,5
Tyres 550/60-22,5
Tyres 500/60R22,5
Tyres 550/45 R22,5
Tyres 560/60 R22,5
Tyres 560/45 R22,5
Spare wheel (separately) 385/65 R22.5
Spare wheel (separately) 385/65 R22.5 RE
Spare wheel (separately) 425/65R22,5
Spare wheel (separately) 445/65R22,5
Spare wheel (separately) 550/60-22,5
Spare wheel (separately) 500/60R22,5
Spare wheel (separately) 550/45 R22.5
Spare wheel (separately) 560/60 R22.5
Spare wheel (separately) 560/45 R22,5
Warning triangle
Auger for unloading grain with efficiency 30 t/h****
Chute over the entire width on the back of the trailer
Demountable left or right chute along the entire length of the loading case
Demountable left and right chute along the entire length of the loading case
Window in the front side wall extension (340×710) with grating and PLEXI
Window in the front extension and in the  middle front side wall extension (340×710) with grating and PLEXI
Hydraulic support of unlocking side walls on the left or right side
Hydraulic support of unlocking side walls on the left and right side
Rear folded support, WE homologated
Set of wall supports to maintain the walls in a partially open position for bale transportation*****
Shock absorber for falling potatoes – two sets of rubber belts, 2,3m of length each, mounted on the sidewall extensions (side extensions necessaary)
Non standard colours according to RAL CALSSIC codes
**** mounted on the back wall, two-segment, folding, mechanical winch, hydraulic-powered auger, the demand for oil 30 L / min
***** for  agricultural roads only