PRONAR Baukipper Tandem 6,4 m³, 10,4 t Nutzlast, 40 km/h

Standard equipment

• Chassis made from welded rectangular hollow sections
• Hydraulic tailgate, 325 mm high
• Tandem axle with 300 × 90 mm drum brakes
• Universal fixed drawbar for top or bottom hitching
• Top hitching with fixed towing eye Ø 40
• Telescopic support leg with gearbox
• Two-line compressed-air braking system
• Handbrake
• Access ladder
• 12 V LED lighting system with side marker lights; rear lights with protective grille
• Body support for maintenance work
• Approved rear underrun protection
• Wheel chocks with holder
• Paint finish: chassis in burgundy, sides in black grey RAL 7021

Technical data

Note: AT approval is only possible for 25 km/h. All listed parameters apply to individual approval in Germany.

Product description

Construction trailer with 6 mm body and 10.4-tonne payload

The tandem trailer carries 10.360 kg and tips backwards at 50°. The floor and side panels are 6 mm thick, and the front and rear panels 4 mm – with an unladen weight of just 2.840 kg.

6 mm – the middle ground between light and heavy

That is the design specification for this model. The construction trailer range covers three sheet thicknesses:

Who the 6 mm body is suitable for: Businesses that mainly transport soil and gravel, but also regularly carry construction rubble and demolition material. The 4 mm body would be too light-duty for this, while the 10 mm body would be unnecessarily heavy.

Side panels as thick as the floor

One feature that sets this model apart: the floor and side panels are equally thick, at 6 mm.

Why this matters for construction rubble: When loading with an excavator, the material hits not only the floor but also the side panels. When tipping, the load slides backwards over the panels, rubbing against them.

The front and rear panels are 4 mm thick – they are subject to lower forces.

10.360 kg payload with an unladen weight of 2.840 kg

The trailer carries more than three and a half times its own weight – despite its reinforced body.

The calculation: 6,4 m³ of crushed stone weighs around 9,6 tonnes. The volume and payload are well matched for heavy materials – the trailer is used to full capacity, without unused volume.

2,42 m body width

With an internal width of 2.416 mm, the body is considerably wider than that of the smaller T679/4M (2.210 mm).

What this means in practice: An excavator bucket fits more easily inside, and less material spills out during loading. European pallets also fit crosswise – two at 1.200 mm each make 2.400 mm.

Just 69,4 PS

That is a low figure for a gross weight of 13,2 tonnes. This means the trailer can be towed by tractors in the 75 hp class – considerably less than the heavy-duty models, which require 83,2 or 124,8 PS.

The drawbar load of 1.800 kg is also moderate, putting less strain on smaller towing vehicles.

Universal drawbar for top and bottom hitching

The fixed drawbar is designed for top and bottom hitching.

Why this makes it versatile: The trailer can be hitched to tractors with a hitch coupling as well as those with a drawbar at chassis height – without modification. A K80 ball coupling is available as optional equipment.

HARDOX 450HB as an option

For tougher applications, the tipping body is available in 5 mm HARDOX 450HB.

Why 5 mm HARDOX outperforms 6 mm structural steel: HARDOX 450HB has a hardness of around 450 Brinell – about three times that of standard structural steel. Despite its lower sheet thickness, it has a significantly longer service life, while keeping the unladen weight lower.

When it is worthwhile: for continuous use with predominantly sharp-edged construction rubble, recycling material and rock.

Up to 14,1 m³ with extensions

The optional 800 mm extensions with Plexi viewing window and rear swing flap increase the volume from 6,4 to 14,1 m³ – more than double.

When this is useful: for light materials such as green waste, wood chips, insulation waste and recycling material. With a payload of 10,4 tonnes and a volume of 14,1 m³ the maximum density is around 0,74 t/m³ – suitable for grain, compost and chopped material.

Optional swinging wing-type tailgate

It opens automatically when tipping and swings freely open.

The benefit: Material flows freely, and the driver does not need to watch the position of the tailgate. This saves time when tipping bulk materials frequently – for material that needs to be placed precisely, the standard hydraulic tailgate is the better choice.

Approval

There are two differences: 1.800 kg less gross weight and a maximum speed of 25 rather than 40 km/h. If you need 40 km/h, you must choose individual approval. EU type approval itself costs just €100.

Additional equipment

• EU or AT type approval, including documents
• K80 ball coupling
• Rear connections
• Tipping body made from HARDOX 450HB, 5 mm
• Swinging wing-type tailgate
• Front wall cover
• 800 × 2,5 mm extensions with Plexi viewing window and rear swing flap for up to 14,1 m³
• Orlandi automatic trailer coupling
• Plastic tube for vehicle documents
• Spare wheel

Applications

Construction and civil engineering, landscaping, local authorities and public works departments, earthmoving and excavation, recycling and waste disposal, equipment hire, agriculture and material transport.

Operating notes

• Confirm the approval route before ordering – EU type approval limits the trailer to 11.400 kg and 25 km/h.
• AT approval is only possible for 25 km/h.
• Check the towing vehicle's drawbar load capacity: up to 1.800 kg.
• When tipping, ensure the ground is level and firm.
• Do not raise the body beneath overhead power lines.
• Before tipping, check that the tailgate can open freely.
• The body support is intended exclusively for maintenance work.
• Consider the HARDOX version for predominantly sharp-edged materials.
• Retighten the wheel nuts after the first few hours of operation and regularly thereafter.

Frequently asked questions

How much can the trailer carry?

10.360 kg with a permissible gross weight of 13.200 kg, depending on equipment. With EU type approval, the payload is 11.400 kg at 25 km/h.

What materials is the 6 mm body suitable for?

For mixed applications: mainly soil and gravel, but also regular loads of construction rubble and demolition material. The 4 mm body on the smaller models would be too light-duty for this, while the 10 mm body on the heavy-duty models would be unnecessarily heavy.

Why are the side panels as thick as the floor?

When loading with an excavator, material also hits the side panels, and when tipping, the load slides backwards over them. The front and rear panels are 4 mm thick because they are subject to lower forces.

What tractor do I need?

69,4 PS or 51 kW, and a coupling rated for a drawbar load of 1.800 kg. Tipping requires 13 litres of oil at 200 bar.

When is HARDOX worthwhile?

For continuous use with predominantly sharp-edged construction rubble and rock. HARDOX 450HB is about three times as hard as standard structural steel – 5 mm HARDOX lasts longer than 6 mm structural steel and weighs less.

Can I get a larger volume?

Yes, with the optional 800 mm extensions, including a Plexi viewing window and rear swing flap – the trailer then holds up to 14,1 m³.

Do European pallets fit in the body?

With an internal width of 2.416 mm, two European pallets fit side by side crosswise – two at 1.200 mm each make 2.400 mm.

Can the trailer travel at 40 km/h?

Yes, with individual approval in Germany. With EU type approval, the limit is 25 km/h, as it is with AT approval.