PRONAR Tandem-Muldenkipper 20 t, 22,6 m³ ohne Aufsätze, 40 km/h
€23,970.00
Standard equipment
- Tandem chassis with rigid axles and parabolic suspension, axle spacing 1.360 mm
- Hydraulic tailgate with automatic locking and rubber seal
- Universal drawbar for low and high hitching, with fixed towing eye Ø 40
- Sprung drawbar with two steel springs and height adjustment
- Telescopic support leg with gearbox
- Two-line compressed-air braking system, drum brakes 406 × 120 mm
- Handbrake
- Front wall with perforated viewing window and PLEXI disc
- Grain outlet in the rear wall
- Access ladder and steps
- 12 V LED lighting system with side marker lights, rear lights with protective grille
- Metal covers over the wheels
- Rear underrun protection, type-approved and foldable
- Wheel chocks with holder
- Paint finish: chassis red RAL 3000, side walls green RAL 6010
Technical data
| Manufacturer | PRONAR |
|---|---|
| Product type | Tandem half-pipe tipper, rear tipper |
| Permissible gross weight | 20.000 kg |
| Technically permissible gross weight (for on-site use) | 21.000 kg |
| Unladen weight | 5.200 kg |
| Payload | 14.800 kg |
| Load volume | 22,6 m³ without extensions / 30,3 m³ with 600 mm extensions |
| Internal body dimensions L × W | 5.700 × 2.240 – 2.300 mm |
| Overall dimensions L × W × H | 7.760 × 2.550 × 2.930 mm |
| Side wall height | 1.750 mm |
| Sheet thickness, floor / side walls | 4 / 4 mm |
| Platform height | 1.180 mm |
| Track width | 1.960 mm |
| Suspension | Parabolic suspension |
| Drawbar load | 3.000 kg |
| Tyres | 385/65 R 22,5 RE |
| Permissible speed | 40 km/h |
| Tipping system | rear tipping, tipping angle 50° |
| Telescopic ram | Stroke 2.400 mm, oil requirement 29 l, operating pressure 200 bar |
| Required tractor power | 104 PS / 76,4 kW |
Note: All listed parameters apply to individual approval in Germany.
Product description
Tandem rear tipper with 1,75 m body height
The sprung two-axle trailer carries 14.800 kg and holds 22,6 m³ – without any extensions. With the optional 600-mm extensions, capacity increases to 30,3 m³.
22,6 m³ without extensions – that’s the key point
The body is 1.750 mm high. For comparison: The T669 in the same range has 1.200 mm, while the T679 has a basic height of just 1.000 mm.
What the full-height sides offer:
- No conversion required. If you mainly transport grain, maize and silage, there is no need to fit and remove extensions.
- A more robust body. A continuous 1.75 m wall made from 4-mm sheet is stiffer than a low wall with an extension frame fitted on top.
- More secure. There is no joint between the body and extension for fine material to escape through.
- Less wear. Extension frames rub against the posts, and rubber seals deteriorate.
14.800 kg payload at 22,6 m³
This ratio gives a calculated limit of around 0,65 t/m³.
- Grain (0,7 – 0,8 t/m³) – the payload limit is reached before the volume limit.
- Maize silage (0,6 – 0,7 t/m³) – both limits are reached at roughly the same time.
- Wood chips and green waste – here, volume is the limiting factor, and the extensions provide the crucial extra capacity.
Extensions with fold-down side walls
This is a well-thought-out detail: The optional 600-mm extensions have hinges that allow the side walls to fold down.
Why this matters in everyday use: At an overall height of 2.350 mm, it becomes difficult to load from a forage harvester, and the trailer will no longer fit through low buildings. With the sides folded down, the height remains manageable without having to remove the extensions.
The extensions also have a perforated viewing window with PLEXI disc.
Hydraulic tailgate with rubber seal
The tailgate is raised hydraulically and locks automatically – the driver can remain seated.
The rubber seal keeps fine materials in. When transporting grain, compost and wet material, it makes the difference between a leak-free load and a trail across the road.
Sprung drawbar with height adjustment
Two steel springs and height adjustment are included as standard. The suspension isolates the towing vehicle from the trailer – protecting the coupling, chassis and driver, particularly at 40 km/h.
The height adjustment allows it to be adapted to different coupling heights – a practical advantage when changing towing vehicles. A K80 ball coupling for 4.000 kg is available as optional equipment.
Universal drawbar for high and low hitching
The trailer can be hitched to tractors with a drawbar at clevis height as well as those with a hitch coupling – without conversion.
Self-steering rear axle as an option
The rear self-steering axle with hydraulic lock reduces the turning circle and protects grassland.
Why this matters on grassland: Rigid axles scrub in turns and tear up the turf – every damaged patch means lost yield for years to come.
Braking system
Standard equipment includes a two-line compressed-air braking system with 406 × 120 mm drum brakes and a handbrake. Optional ALB or ALB Premium.
Why ALB makes sense: The trailer weighs 5.2 tonnes empty and 20 tonnes when loaded – almost four times as much. Without load-dependent control, the wheels will lock when empty. ALB is also part of the package required for EU type approval.
Grain outlet and viewing window
- The grain outlet in the rear wall allows grain to be discharged in a controlled way without having to open the entire tailgate.
- The perforated viewing window in the front wall shows the fill level while travelling – the only practical way to check it with 1.75 m-high sides.
Approval
| Approval route | Permissible gross weight | Payload |
|---|---|---|
| Individual approval DE | 20.000 kg | 14.800 kg |
| For on-site use (technical) | 21.000 kg | approx. 15.800 kg |
| EU type approval, 40 km/h | 18.000 kg | approx. 12.800 kg |
The difference is significant: There is a 2.000 kg difference in payload between individual approval and EU type approval. The EU version allows a drawbar load of either 3.000 or 4.000 kg.
Additional equipment
- AT or EU type approval, including documents
- K80 ball coupling for 4.000 kg drawbar load
- Hydraulic support leg, single-acting or foldable (no extra charge)
- Rear self-steering axle with hydraulic lock
- 600 mm extensions with viewing window and fold-down side walls
- Two-line compressed-air braking system with ALB or ALB Premium
- Discharge chute
- Spare wheel
- Slow-moving vehicle warning triangle
Applications
Arable farms, grain and maize harvesting, agricultural contractors, biogas plants, wood chip and compost logistics, potato and sugar beet harvesting, local authorities.
Operating notes
- Confirm the approval route before ordering – there is a 2.000 kg difference between individual approval and EU type approval.
- Check the towing vehicle’s drawbar load: up to 3.000 kg, or up to 4.000 kg with K80.
- When tipping, ensure the ground is level and firm – with a body height of 1.75 m, the centre of gravity is high.
- Do not raise the body beneath overhead power lines.
- Before tipping, check that the tailgate can open freely.
- After unloading, check that the body is empty.
- The technically permissible 21.000 kg applies only for on-site use.
- Check the rubber seal on the tailgate regularly.
- Retighten the wheel nuts after the first few hours of operation and regularly thereafter.
Frequently asked questions
How much does the tipper hold without extensions?
22,6 m³. The body is 1.750 mm high, so the trailer needs no extensions for most harvested crops.
How much can it carry?
14.800 kg at a permissible gross weight of 20.000 kg. A technically permissible 21.000 kg applies for on-site use, and 18.000 kg with EU type approval.
What distinguishes the XL version?
Its higher body: 1.750 mm instead of 1.200 mm on the standard model in the same range. This gives it a capacity of 22,6 m³ instead of around 15 m³ without extensions.
What is special about the extensions?
They have hinges that allow the side walls to fold down. This reduces the overall height without having to remove the extensions.
Why is a continuous body better than extensions?
It is stiffer, more secure and less prone to wear – no joint between the body and extension, no rubbing against the posts and no rubber seals to deteriorate. It also eliminates the need for conversion.
What tractor do I need?
104 PS or 76,4 kW, and a coupling rated for a 3.000 kg drawbar load. Tipping requires 29 litres of oil at 200 bar.
How far does the body tip?
50° to the rear.
Is the self-steering axle worthwhile?
Yes, on grassland. Rigid axles scrub in turns and tear up the turf – every damaged patch means lost yield for years to come. It also reduces the turning circle.