New at the Agritechnica: HEM 593 R Cobra

JENZ presents new HGV chipper and bestseller HEM 593 Z

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Mobile chippers in the HEM 593 series have been proving themselves successfully in practice since their market introduction in 2014. JENZ presented its newest model at the Agritechnica 2015: the HEM 593 R Cobra - the first mobile chipper in the world with a rotating driver's cab on an HGV with manual transmission. In addition to this, a bestseller will be presented - the power takeoff HEM 593 Z machine.

"Cobra"? What has the powerful three-axle machine got to do with a snake? Melanie Horstmeier from JENZ knows the answer: "The name 'Cobra' relates to the rotating driver's cab" explains the marketing expert. It rises up and turns, just like a Cobra's head in the snake charmer's basket. And the plus sign in the designation of some models? "This shows that the cabin is height-adjustable".

When driving the Cobra truck, the machine operator no longer has to change from the transport seat to the working seat. He can turn the driver's cab around by up to 160° into the right working position within a few seconds at the push of a button. "That saves a lot of time, particularly if work is being carried out with frequent changes of location because the machine is ready for operation much quicker" said Uwe Hempen-Hermeier, managing partner of JENZ GmbH. A further advantage is that the machine can relocate at speeds of up to 8 km/h even when the cab is turned round.

In comparison with the classic chipper truck with HGV driver's cab and mowing window, the machine operator in the HEM 593 R Cobra is seated in a CLAAS X10 driver's cab. A lot of comfort is provided by swivelling working instruments, a flexible steering column, full air conditioning, plenty of storage facilities including a cooler and a non-slip access ladder. "The driver has a much better view of the draw-in table and the crane, as well as the woodpile and any people in the hazard area in comparison with other models" emphasised Development Manager Stefan Müller. "And all this without a twisted neck and visual restrictions."

Innovative new developments on one side - proven quality on the other. In addition to the new Cobra, JENZ is presenting its current bestseller, a power takeoff machine of type HEM 593 Z. "Traditional machines with power takeoff continue to be very popular" said Uwe Hempen-Hermeier. One advantage is that the installed power of the tractor machines, which are getting more and more powerful, can be completely used. Apart from this, the machines are extremely good off-road thanks to the high chassis.

Whether HGV chipper or power takeoff machine, the sales figures to date confirm the development of the HEM 593 mobile chipper. With its extra wide draw-in of 1.4 m, it manages bulky material such as like cuttings much better than narrower machines. The wider draw-in also makes working with the crane easier. Overall the chipper runs more smoothly and with less idle time. This increases the average throughput by more than 10% compared with the HEM 583.

In both machines, the hydraulically-driven blower for the woodchipping outfeed is a standard feature. On the HGV, the blower is located between the driver's cab and the chipper cell, which means woodchippings can be loaded to the front over the driver's cab. This results in logistical advantages. If, for example, roadside greenery is being processed on the motorway, the transport machine can stand in front of the mobile chipper and doesn't need to drive around the chipper to join the traffic flow. On top of this the centric blower results in better weight distribution across the axles. And, since the blower speed can be infinitely variably adapted to different working conditions, the efficiency increases and the wear decreases.

The established advantages with regard to maintenance-friendliness have been retained, and now also apply to the blower. This can now be swung completely out of its housing in just a few steps, which means that all wear parts are easily accessible for maintenance. The tool-less screen basket changeover is also worthy of mention. The screen basket cover is hydraulically opened at the push of a button and then pulled out of the machine, which also ensures quick and simple maintenance access.

Power takeoff machines have been successfully used for a year now. Delivery of the first Cobra machines will start after the trade fair and further vehicles will be available at the start of the second quarter.