HP 20 Carrier Tandem Halfpipe

Towing device

A slim drawbar makes for a tight turning circle and, in turn, an ultra-compact vehicle. With a wide range of different hole patterns available, we can provide all tow hitches.

• Cushions jolts on poor roads for a smoother ride
• Designed with rubber silent blocks that have good inherent damping
• By simply switching over the locking pins, multiple trailer heights can be set (55 to 90 cm with standard tyres)
• The vehicle is equipped with a bottom hitch coupling, this results in much better handling and improved road safety

Small turning circle

The slim design of the drawbar makes for a very large steering angle and significantly reduces the turning circle. With the optional positive steering, the adjustable collision protection guard can be tailored to the tractor.

Chassis

For our chassis we use only rectangular tubing made of high-grade steel that is sealed all round; no cheap pressed steel or welded constructions. The large-volume rectangular tubing saves weight, is extremely torsion-resistant and has no open joints or cracks, making it easy to clean. Visually too, it makes a good, clean and neat impression.

Running gear Pivoting unit

An offroad pivoting unit with large swing angle is fitted on all sand and gravel tippers. This tried-and-trusted and robust running gear with asymmetrical offset axles makes for a stable presence on the construction site. The front axle carries less weight than the rear axle, and the pivot point of the pendulum swing is very low-set. This unit is very easy to pull and thanks to the optimum weight distribution, the front axle does not “get buried” on heavy-going terrain. The unsprung version ensures very good stability while tipping. The sophisticated design of the pendulum axle support (beams made from round tubing and the square axle is installed “upright”) ensures that dirt does not stick due to the self-cleaning effect.

Axles

BPW axles with automatic slack adjusters, axle cross-section 150 x 150 mm, track width 1.95 m, wheel brake 410 x 180 mm, 10-hole wheel end 13.0 t single axle load at 40 km/h

Lighting system

High-end 3-chamber rear lights with impact-resistant lens; all lights feature LEDs; secured by a stable light support with “pitched roof” to prevent the accumulation of dirt.

Pivoting hydraulic tailgate

The pivoting hydraulic tailgate was specially developed for Krampe’s heavy-duty tippers. By briefly lifting the tailgate, it is unlocked and the pendulum function is released. This enables a rapid unloading of sand or gravel. Once the tailgate is open, the pivoting rear wall can move up/backwards. This means that even massive boulders and trees stumps can easily pass through the tailgate while the side linkages are protected from overloading.

During the design phase, great importance was placed on ensuring that the tailgate and side linkages were flush with the body. This minimises the risk of damage being caused during loading. In addition, the sharp edges of the tailgate ensure an effective self-cleaning by stopping sand and dirt from settling.

HD Carrier body

Elegant halfpipe tipper 

• Tipper body wall 6 mm thick as standard, material HARDOX 450
• Continuous tipping axle, heavy-duty truck ball tilting bearings with 80 mm diameter
• Hydraulically operated tailgate that is also pivot-mounted at the top

Advantages of the halfpipe tipper:

1. Dent resistant: During loading, the bulk material slides into the body at a shallower angle and does not fall violently onto the otherwise flat metal floor panel
2. Forced centring: During tipping the cargo slides into the centre of the body
3. Blockage-free: no collecting of bulk goods as there are no corners
4. Low tare weight: The curved design does away with the longitudinal and lateral beams, with no need whatsoever for central posts
5. Torsion-resistant: The tipping cylinder (front tipping cylinder) is located at the front on the front wall which means that the hydraulics act precisely where lifting is easiest. This also minimises twisting between the chassis and body.
6. Centre of gravity: 200 mm lower than “normal” once longitudinal beams have been removed
7. Always clean: The top edges of the body and tailgate are shaped like a self-cleaning pitched roof, ensuring that no soil can collect there

Front tipping cylinder

Front tipping cylinders are used on the halfpipe tippers. These apply pressure wherever lifting is easiest, namely at the front on the front wall of the body section. Unlike conventional underfloor cylinders, the front tipping cylinders used here do not have a gimbal ring and so  they help to stabilise the body and ensure less torsion between the chassis and body.