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PRONAR Tridem-Muldenkipper 34 t, 29–45 m³, zwangsgelenkt, 40 km/h

Description

Standard equipment

  • Tridem chassis with parabolic suspension, 1st and 3rd axles positively steered, axle spacing 1.810 mm
  • Body with profiled side walls, five diagonal profiles each and tension cables on the inside
  • Hydraulic tailgate with automatic locking, operated by remote control from the tractor cab
  • Rubber seal on the tailgate
  • 400 mm aluminium extensions, inserted into steel posts and secured with steel cross-members
  • Vertical front wall with mesh window and PLEXI pane
  • Hydraulically sprung drawbar with height adjustment, lower hitch with K80 ball coupling (4.000 kg)
  • Hydraulic angled support leg
  • Central hydraulic system with distributor and wired remote control
  • Grain chute in the rear wall
  • Folding access ladder and steps
  • Two-line compressed-air braking system with ALB Premium, 406 × 140 mm drum brakes
  • Pneumatic parking brake
  • 12 V LED lighting system with side marker lights, rear lights with protective grille
  • Two rear work lights
  • Upper aluminium mudguards with spray guards, rear spray guard
  • Rear underrun protection, type-approved and foldable
  • Wheel chocks with holder
  • Paint finish: chassis black grey RAL 7021, side walls green RAL 6010

Technical data

ManufacturerPRONAR
Product typeTridem tipping trailer
Permissible gross weight34.000 kg
Technically permissible gross weight (on-site use)35.000 kg
Unladen weight10.200 kg
Payload23.800 kg
Load volume29 m³ without extensions / 37 m³ with 400 mm / 45 m³ with 800 mm
Internal body dimensions L × W8.700 × 2.240 – 2.300 mm
Overall dimensions with 400 mm extensions10.550 × 2.750 × 3.690 mm
Side wall height1.500 + 400 mm
Sheet thickness, floor / side walls5 / 4 mm
Platform height1.600 mm
Track width2.100 mm
SuspensionParabolic suspension
Drawbar load4.000 kg
Tyres650/55 R 26,5
Permissible speed40 km/h
Tipping systemrear tipping, tipping angle 50°
Telescopic ramStroke 3.250 mm, oil requirement 75 l, operating pressure 200 bar
Required tractor power182 PS / 133,8 kW

Product description

Tridem tipping trailer for professional transport

Depending on its configuration, this three-axle trailer with positively steered outer axles has a capacity of 29 to 45 m³ and carries 23,8 tonnes. The body, tailgate, drawbar and support leg are operated via a central hydraulic system using remote control from the tractor cab.

Positive steering: the difference in the yard and at the field edge

The first and third axles are positively steered.

Why this is essential on a tridem: Three rigid axles close together scrub sideways when cornering. The tyres drag across the ground – wearing the rubber, tearing up the turf, putting strain on the frame and making the trailer difficult to manoeuvre in the yard.

With positive steering the outer axles follow the towing vehicle. The turning circle is reduced, the tyres roll instead of scrubbing, and tracking on narrow farm tracks is noticeably improved.

Up to 45 m³ with fitted aluminium extensions

ConfigurationLoad volumeTypical loads
without extensions29 m³Soil, gravel, sugar beet – heavy loads
400 mm extensions (standard)37 m³Grain, maize, potatoes
800 mm extensions (optional)45 m³Wood chips, silage, compost

The extensions are made of aluminium and fit into steel posts. This saves unladen weight where it does not contribute to carrying capacity – and every kilogram less unladen weight means one kilogram more payload.

Central hydraulic system with remote control

This is the convenience feature that makes a difference to everyday work. The following are operated from the tractor cab using a wired remote control:

  • Hydraulic drawbar suspension and height adjustment – adjustment to the tractor’s lower or upper hitch
  • Hydraulically raised tailgate with automatic pressure and locking function
  • Hydraulic tipping of the body with an automatic valve to limit the tipping angle
  • Trailer work lights

What this means in practice: The driver stays seated. No getting out to unlock the tailgate, and no swapping hydraulic hoses for each function. Over twenty loads a day, this adds up to hours.

Requirement: The system needs a permanent connection to one pair of tractor hydraulic couplings and a 3-pin socket.

Body with diagonal profiles and tension cables

The side walls are profiled and reinforced with five diagonal profiles each; tension cables run inside.

Why this determines service life: A body flexes during loading and tipping. Damp silage and sticky soil cling to the wall when tipped and pull on it. The diagonal profiles and tension cables absorb these forces, preventing the wall from bulging.

5 mm floor, 4 mm side walls – robustly designed for a trailer with a 23,8 t payload.

Hydraulic tailgate with automatic locking

The tailgate is raised hydraulically and locks automatically. The rubber seal keeps fine materials in – making the difference between a clean load and a trail on the road when carrying grain, compost and damp material.

An additional electro-hydraulic lock with integrated sensor is available as optional equipment.

Drawbar with K80 ball coupling and 4.000 kg drawbar load

The hydraulically sprung drawbar with height adjustment is supplied as standard for a lower hitch with K80. The sprung drawbar isolates the towing vehicle from the trailer – protecting the coupling, frame and driver, especially at 40 km/h on uneven tracks.

Alternative at no extra cost: Drawbar with rigid Ø 40 towing eye, giving a permissible gross weight of 33.000 kg and a drawbar load of 3.000 kg.

Braking system: ALB Premium as standard

The two-line compressed-air braking system with 406 × 140 mm drum brakes comes with ALB Premium as standard, as well as a pneumatic parking brake.

Why this matters with a 23,8 t payload: The unladen and laden weights differ by more than twice the unladen weight. Without load-dependent control, the wheels would lock when empty – while braking would be too weak with a load.

Safety and visibility

  • Vertical front wall with mesh window and PLEXI pane – a view into the body without getting out.
  • LED lighting with protective grilles on the rear lights.
  • Two rear work lights for tipping in the dark.
  • Folding access ladder and steps.
  • Type-approved, foldable underrun protection.
  • Reversing camera available as optional equipment – a useful addition with an overall length of 10,5 m.

Chassis options

The trailer is supplied as standard with parabolic suspension and positively steered outer axles. The following are available as optional equipment:

  • Hydraulic tridem chassis with hydraulically stabilised and adjustable outer axles, central rigid axle, lift axle and hydraulic suspension lock on the rear axle
  • Self-steering axles with hydraulic locking – either front and rear axles or rear axle only

The lift axle is worthwhile where the trailer often runs empty: raising it reduces tyre wear and rolling resistance.

Additional equipment

  • AT or EU type approval, including documents
  • Drawbar with rigid Ø 40 towing eye (no extra cost)
  • Telescopic support leg with gearbox (no extra cost)
  • Hydraulic tridem chassis with lift axle
  • Self-steering axles with hydraulic locking
  • Version without aluminium extensions
  • 800 mm aluminium extensions for up to 45 m³
  • Central hydraulic system with oil tank and PTO-driven pump
  • Roll-over cover with folding frame and platform (not compatible with 800 mm extensions)
  • Additional electro-hydraulic tailgate lock with sensor
  • Toolbox
  • Rear folding service ladder, stowable under the body
  • Discharge chute
  • Reversing camera
  • Split lighting bar for use with a trailer coupling and hydraulic couplings (no extra cost)
  • Rear hydraulic couplings
  • Manual trailer coupling

Applications

Agricultural contractors, large arable farms, biogas plants and substrate logistics, sugar beet and potato harvesting, wood chip and compost logistics, construction and earthmoving, local authorities.

Operating notes

  • The central hydraulic system requires a permanent connection to one pair of tractor hydraulic couplings and a 3-pin socket.
  • The hydraulic angled support leg also requires a permanent hydraulic connection.
  • Check the towing vehicle’s drawbar load: the trailer applies up to 4.000 kg.
  • When tipping, use level, firm ground and position the trailer correctly – the centre of gravity is high with a 3.250 mm stroke.
  • Do not raise the body under overhead power lines.
  • Check the tailgate lock before tipping.
  • After unloading, check that the body is completely empty – material left behind shifts the centre of gravity.
  • Observe the permitted height: 3.690 mm with 400 mm extensions.
  • The roll-over cover is not compatible with the 800 mm extensions.
  • Check the wheel nuts and positive steering regularly.

Frequently asked questions

What is the capacity of the tipping trailer?

29 m³ without extensions, 37 m³ with the standard 400 mm extensions and 45 m³ with the optional 800 mm extensions.

How much can it carry?

23.800 kg with a permissible gross weight of 34.000 kg. A technically permissible gross weight of 35.000 kg applies for on-site use.

What are the benefits of positive steering?

Three rigid axles scrub sideways when cornering – wearing the tyres, tearing up the turf and putting strain on the frame. With the first and third axles positively steered, the wheels follow the towing vehicle: a smaller turning circle, less wear and better tracking.

What can be operated from the cab?

Using the wired remote control: drawbar suspension and height, the hydraulic tailgate with automatic locking, tipping the body and the work lights.

What does the tractor need?

182 PS or 133,8 kW, one pair of permanently connected hydraulic couplings, a 3-pin socket and a coupling rated for a 4.000 kg drawbar load. Tipping requires 75 litres of oil at 200 bar.

Is there an alternative to the K80 coupling?

Yes, a drawbar with a rigid Ø 40 towing eye is available at no extra cost. The permissible gross weight is then 33.000 kg and the drawbar load 3.000 kg.

What is the lift axle for?

It is part of the optional hydraulic tridem chassis. Raising it reduces tyre wear and rolling resistance when running empty.

Why are the extensions made of aluminium?

Because they do not need to carry weight; they simply increase the volume. Every kilogram less unladen weight means one kilogram more payload.