Nr. 37, Mai 2011

Versteeg with new HEM 360 DL

BioBaler cuts timbers from fruit tree care

New engines with more power

AZ 660 does 8.000 h in two years

CONTENTS

Forword 3

Anderson BioBaler 4-5JENZ works on new raw materials for energetic use

Through narrow streets ... 6-7How the Versteeg brothers bought three JENZ mobile chippers

„Unbreakable“ 8-9Why an AZ 660 manages 8.000 working hours in Latvia without problems

JENZ engines update 10-11EU non-road regulation leads to more performance

One chipper for all customers 12-13Lorenz Waldinger relies on the JENZ Chippertruck

Plenty of space on long trips 14-15ReTec puts a gigaliner with integrated chipper on Sweden´s roads

Environmental protection ... 16JENZ certifi ed to ISO 14001

Trade exhibitions 2011 16

Imprint

Produced by:

JENZ Maschinen- und Fahrzeugbau, Wegholmer Str. 14, 32469 PetershagenTel.: +49 (0) 5704/9409-0Fax allgemein: +49 (0) 5704 / 9409-47 Fax Ersatzteile: +49 (0) 5704 / 1533

© April 2011

ViSdP: Uwe Hempen-HermeierEditorial: Melanie GrieseLayout: Dagmar Middleditch

The contents of JENZ Aktuell have been compiled very carefully. No responsibility is taken however for the correctness of the information contained in this publication.

Dear reader,

The events in Japan and especially the „system breakdown“ (to put it mildly) in the Fukushima atomic power station have left me deeply concerned.This technology has made the importance of sustainable thinking, which was unchallenged over the last few years, as a central requirement for the survival of the ever-growing human race in this century blatantly obvious.

Hans Peter Dürr, the famous German physicist and winner of the alternative Nobel Prize, says the following about atomic energy in his extremely readable book

„Why it‘s all or nothing“ on page 154: „Whoever uses atomic energy

Thank you very much!We would like to thank the following companies and individuals for actively contributing to this issueMr Imori and RyokusanMr Pieter Kieft and Mr Jan van BemmelMr Roberts Kuba and OK KoksMr Thomas Jessen and ReTecMr Lorenz Waldinger

www.jenz.de – 3

is playing Russian roulette. Even peaceful use of nuclear power is ethically unacceptable because the worst-case scenario leads to damage which is neither insurable nor justifi able.“ He continues: „For myself as a nuclear physicist I only know one reason which means an absolute NO to atomic energy: We humans should never ever develop technologies which can lead to damage which we can no longer take responsibility for if the maximum possible failure occurs.“ The following demand must apply, completely irrespective of which probability for the occurrence of such a failure has been calculated.

The demand as a logical consequence of this thinking is „switch off all atomic power stations.“ I have absolutely no doubt that this is indeed possible. The central European biomass conference in January, which was held in Graz with more than 1200 participants, impressively documented the

status and potential of biomass utilisation in Europe for our industry. Only a few years ago the level we have now reached was considered unachievable, but further potential is available in abundance on top of this.

It may be terrible for the victims of the catastrophe in Japan, but only this event will cause renewable energies in this country to be given another push. This will also apply to the production and use of ligneous biomasses. There is plenty of it despite the fact that in some cases it is diffi cult to get to .

A good example of this is the increasing business

enjoyed by Mr Imori, to whom we delivered a new HEM

1000 DXL in December.

We have already published an article in the last issue of „JENZ Aktuell“ about the delivery of this machine. We have many more interesting articles on the following pages.

We hope you enjoy reading this issue.

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4 – www.jenz.de

BY CHRISTIAN LEITNER

JENZ works on new raw materials for energetic use

Anderson BioBaler harvests cut timber from fruit tree care

The demand for ligneous biomasses for energetic use will continue to increase strongly in the next few years (as well). If not, the climatic protection objectives set by the EU for 2020 will not be achieved. When using sustainable cultivation, however, this increasing demand cannot be covered by materials from the forests alone. For this reason, in the future the focus will have to be on other raw materials, which were insuffi ciently or not previously used.

Utilisation instead of disposal

One example of the unused potential of biomasses is the cut material from fruit trees which arises during the annual care procedures in the orchards. Up to now, the cut branches and twigs were just mulched between the rows of trees. The fact that this biomass can also be used was proven by JENZ, when a recent

B

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test took place. Cut wood from fruit tree care on the „Raiffeisen Agil Leese eG“ premises was collected by the Anderson BioBaler for energetic use.

Harvesting with the BioBaler

Thanks to its unique design, this machine is capable of gathering, fragmentising and pressing the material into round bales in just one operation. In doing so, it makes no difference whether the harvested material comes from standing trees or is collected loose on the ground. Trees and shrubs of diameter up to 7 cm can be processed.

The cut material can be gathered up without losses in the upstream mulcher at an impressive speed of 8 km/h. Driving between the fruit trees (space between rows 5.5 m) was absolutely no problem for the vehicle. The 3.6 m long swivel towbar and the hydraulic lifting system give the machine extraordinary mobility. This makes it predestined for use under tight conditions. When operating, the harvesting logistics is amazingly simple - you only need one driver and one tractor to work the machine.

Unused potential

The harvested quantities show what potential materials literally rot in fruit plantations every year: a total of 37 biomass round bales with a total weight of 18 t were pressed over an area of 16 hectares. A 500 kg biomass bale achieves a calorifi c value of up to 1 MWh. The bales do not have to be transported away immediately. They dry outside without loss of calorifi c value even in bad weather.

Further processes

Further processing into ready fuel takes place either using a powerful mobile chipper or the JENZ BA 720 biomass processor. The latter is capable of gathering up a complete round bale and fragmentising it. During this process chippings of Class G100, such as are used in larger biomass heat and power plants, are created.

One machine for many tasks

The BioBaler is a round bale press for ligneous biomasses. The technology comes from Canada, made by agricultural machine manufacturer Anderson. JENZ is dealing with the sales in German-

speaking European countries. The versatile range of applications is a guarantee for all-year-round use. In addition to operate in orchards, the machine has established itself as an excellent worker during the harvesting of short-term growth plantations, care of set-aside areas, pine plantations and natural woodland, in commercial forestry and in the cutting clear of power line forestry aisles. Since the swivel towbar can also be offset to the side of the towing machine, the BioBaler is also extremely useful for work on roadside verges.

io Baler short facts

■ versatile, small dimension machine

■ easy bale transportation and bale handling

■ one man operation

■ easy storage of bales

■ bales dry naturally

6 – www.jenz.de

Through narrow city lanes

Why the Versteeg brothers bought three JENZ mobile chippers

BY JÜRGEN KRÜGER

Zwaanshoek/Petershagen. When brothers Bram und Mart Vesteeg decided to go self-employed on 1 January 1987, they couldn´t have known that they would have 20 employees nearly 25 years later.

And the fact that their machinery, which originally consisted of two chainsaws, has increased in size to that of today defi nitely has something to do with their good

commercial acumen and courage.

Bram and Mart Versteeg were working for a tree care company at the time, and took the plunge to set up their own company. Word quickly got round that

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the Versteeg brothers were good workers. This is because their work location is not in the forest, but in town. The Versteeg brothers operate their company in Zwaanshoek, a Dutch village on the North Sea coast near Amsterdam.

The core of their operations is greenery care. The focus was particularly on tree care, clearance, planting and watering and other typical work. Over the years, the Versteeg brothers have equipped their machinery with several chippers, three stick mills, a FAE mulching mill, several mowing and seeding machines, levellers, two water tank lorries, fi ve tractors of various sizes, fi ve trucks and several small transporters. The machinery also includes three JENZ mobile chippers; a HEM 420 DL and two HEM 360 DL, all painted in bright green.

The Versteeg employees‘ operational areas are mainly in the Dutch provinces of North and South Holland and in Utrecht. Their clients are authorities and water supply co-operatives, but also civil engineering companies, nurseries and private persons.

One of the largest challenges that the company is facing are the narrow roads on which the trees are growing that they are taking care of. Since long-term

road closures are frowned upon in Holland, the company requires compact, easily manoeuvrable and powerful mobile chippers.

In 2004 Pieter Kieft, salesman at the Dutch JENZ importer van Bemmel machine~import bv, took Bram and Mart Versteeg to a demonstration given by the association of organic residual material processors.

There, they saw a JENZ HEM 420 DL mobile chipper at work and shortly afterwards they paid a visit to the works in Petershagen-Wegholm. In 2005 they ordered what at the time was the smallest JENZ mobile chipper, the HEM 420 DL. However, this combination is still too large for work purely in towns when it is loaded by a hydraulic digger with a sorting gripper. Since the machine‘s younger brother, the HEM 360 with its own motor, was not yet being made, the Versteegs ordered the HEM 360 R basic version.

In close cooperation with JENZ, van Bemmel and a local workshop, started to build the chassis, motor, coupling and MOWI gripper crane together themselves. „I must say that this work had been perfectly prepared by JENZ. Even the complete wiring for the controller had been clearly marked“ praised Pieter Kieft. When JENZ introduced

the fi rst HEM 360 DL with a 200 hp John Deere motor onto the market in 2007, the Versteegs put a lorry in front of it to achieve just the right combination for the narrow town lanes.

JENZ then reacted to the increasing demand for compact, powerful mobile chippers and developed the HEM 360 DL further as a fi xed add-on or with Caterpillar tracks. The Versteeg brothers then received their third HEM 360 DL with running gear, in bright green of course. The only thing they made in their own workshop was a „Versteeg-type“ gripper crane.

short facts

HEM 360 DL & HEM 420 DL

Intake Opening: 360 mm / 420 mm

Rotor diameter: 520 mm / 620 mm

Material outfeed: Fan

■ compact and powerful

■ additional gripper crane - a „Versteeg“-Special

8 – www.jenz.de

„Unbreakable“!

How an AZ 660 manages 8000 working hours in Latvia without problemsBY JÜRGEN KRÜGER

Jaunjelgava/Latvia. The Semgallen area in Latvia is an area of outstanding beautiful nature with many lakes and woods - predestined for the use of mobile chippers. It is a big surprise thought that a JENZ AZ 660 waste shredder is causing a little sensation in the village of Jaunjelgava with its mere 2200 residents.

Two years ago JENZ delivered an AZ 660 through its sales partner Sia Heta to OK Koks, who produce wood pellets for the Finnish market. The AZ 660 is a universally usable muscle-machine which is usually towed by a lorry, but in Jaunjelgava it works in just one location. The machine has been designed to fragment or re-fragment large quantities of organic waste.

But as an option in the DUO-cut version, the AZ 660 can also produce woodchippings for woodfi red heating plants. OK Koks is using this facility, because in Janjelgava the JENZ waste shredder is only working with the purest Latvian timber. „There is no sand in it, no iron. That‘s probably the reason why this AZ 660 has already over 8000 operating hours on its clock without any big breakdowns“ says Roberts Kuba, 38.

He should know, because he is the service technician responsible for maintaining the machine. Mr Kuba just has to replace the blades every week. „That‘s an extremely good for this amount of loading“ he says. The AZ 660 works daily in dual-shift operation. This means that the colossus is working tirelessly between 7 o‘clock in the morning and 11

o‘clock at night. There weren‘t many chances for breakdowns during its 8000 operating hours, because the JENZ machine has managed these thousands of hours in only 500 working days. And all that without big bruises.

„Of course there are always little things to repair, but that‘s why I‘m here“ says Mr Kuba. The service technician did admit that the rotors now need to be changed. „But that‘s normal under this sort of loading.“

The JENZ machine is supplied by a crane on the OK Koks premises. One of the main benefi ts of the machine according to Mr Kuba is that the AZ 660 can move a few metres itself using hydraulic power. „When the pile of woodchippings behind the machine gets too big, the driver can just move it a little bit further.“

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By the way, the woodchippings produced by the AZ 660 are dried, then processed in a mill to form a type of sawdust and then pressed into pellets. And the fact that the woodchippings have been produced by an extremely fl exible and capable waste shredder and not a mobile chipper really doesn‘t matter to the Finnish woodfi red heating plant operator.

short facts

■ in 2009 the AZ 660 was replaced by the redeveloped BA 720

■ These machines can be used for shredding as well as the production of woodchippings

10 – www.jenz.de

EU non-road regulation leads to more performanceThe JENZ motor policy modulesBY MELANIE GRIESE

The heart is the most important organ in the human body, and forms the core of all further functions within the body. The motor in the high-powered JENZ machines is just as important. It is the centre which drives the drum and therefore fulfi ls the machine‘s function - shredding wood or shrubs.

Construction manager Jens Wiehe explains that, „we‘ve been forced to carry out fundamental modifi cations to this important component of our machines. This is because we have had to comply with emission level IIIB in the EU non-road regulation 97/68/EU since 1 January 2011.“

The new exhaust gas regulation affects all mobile machines and

devices which are powered by industrial diesel engines of between 130 and 560 kW. This regulation and its associated revisions and requirements applicable to all manufacturers who sell their machines to European, North American or Japanese customers.

In comparison with emission level I which came to pass in 1996, all the nitrogen oxides in the currently applicable Stage IIIB have to be reduced by 85%, and the soot particles by as much as 97%. Whereas the engine manufacturers were able to effectively reduce the pollution emission through varying measures within the engine itself for the fi rst three emission levels, these internal solutions are no longer suffi cient. In the future,

these exhaust gases need to be post-treated.

For the last few years, Mercedes-Benz has been using SCR technology in the commercial vehicle sector. In the case of SCR, a chemical reaction in the catalytic converter transforms the nitrogen oxide into water and pure nitrogen. This takes place with the help of a synthetically manufactured acqueous urea solution (AdBlue®), which is carried in an extra tank.

The well-known 300 and 500 hp Mercedes engines will now be replaced with the new OM926LA model with 240 kW and OM460LA model with 375 kW and SCR technology. „Both engines are extremely convincing with more power and

Dosiermodul

Motor

Schalldämpfer

Temperatursensor

HarnstofftankDosierpumpe

www.jenz.de – 11

series compressor. As a bonus the compressed air doesn‘t just transport the AdBlue®“, explains design engineer Stefan Müller.

„Compressed air tools can, of course, also be connected.“

Jens Wiehe is, however, planning the most sweeping changes for the more powerful chippers and shredders: Instead of the Mercedes Benz OM502LA engines we previously used, we will now be using the Caterpillar C18 with 571 kW.“

This engine is a straight six cylinder engine with 18.1 litres capacity and two exhaust turbochargers. The maximum torque for these engines is an amazing 3500 Nm. „The advantage of this engine is that it is above the proposed limit for exhaust emission laws of 560 kW“ emphasised Mr Müller. „This means that it doesn‘t require the costly exhaust gas post-treatment.“

On top of the machines which are stated above, the EU non-road regulation also affects the JENZ HEM 700 and HEM 820 HGV add-ons. Due to customer

requirements, the JENZ designers are now fi tting these machines with the new, high-powered caterpillar C18 engines too. However, this means that the machines are now at the upper limit of the admissible HGV weight with these heavy motors.

In other words, if the overall HGV weight plays a decisive role, JENZ will offer the double engine technology at this point. In this case, the actual chipper motor is only used to drive the chipper drum. The wood chipping outfeed via the blower is operated by the HGV engine. Up to 195 kW will be required for this depending on the weight of the woodchippings, and this was previously provided by the only marginally used lorry engine. In the case of the DQ machines the power transfer takes place directly and mechanically, and in the DL machines the blower is operated hydraulically using an additional pump on the HGV auxiliary drive.

„The benefi ts are easy to see“ explains Stefan Müller. „The power, which is up to 570 kW, is even a little bit higher

than the previously-used OM502LA overall at the same fuel consumption despite the smaller engine. On top of this, the fact that the blower‘s drive is independent of the drum has a positive side-effect. Even when the drum is loaded, the woodchipping ejection remains constant and the speed of the blower can even be adjusted. We already have more than 1000 operating hours of experience using this technology.“

JENZ has used the EU non-road regulation as a reason to make the machines‘ hearts, and therefore the entire chipper, even more powerful and to consume less fuel at the same time. Construction manager Jens Wiehe is convinced about the new core of the JENZ machines:

„This change to our engine family is an important decision for the benefi t of our customers.“

12 – www.jenz.de

One chipper for all customersLorenz Waldinger relies on the JENZ ChippertruckBY CHRISTIAN LEITNER

Forester Lorenz Waldinger is relying on JENZ technology for the second time. His new chipper truck has enabled him to acquire new customers and to improve the economic effi ciency of his machine deployment.

In 1999 Lorenz Waldinger, from Buchbach in the rural district of Mühldorf, founded a small forestry company. In addition to felling trees, milling rootstocks and

forestry mulching, woodchippings played their part right from the beginning. "In the beginning we traded in woodchippings and only dealt with the transport ourselves. Another service provider was responsible for chipping" explained Mr Waldinger, who is a trained farmer. In 2006 he made the decision to buy his own chipper. The businessman, who is fascinated by technology, decided to buy a used JENZ HEM 560 Z. Shortly before this, he was able to watch a JENZ chipper working. "I was absolutely thrilled by the machine. Performance, quality of work, everything was just right" is how he explained his decision for the purchase. In the following years he was able to continuously expand his woodchipping business. Nowadays it is his company's core business. Waldinger now has two permanent employees throughout the year, further

temporary workers support him at peak times.

A new JENZ in the vehicle fl eet

When the used HEM 560 Z with its power shaft reached its limits, a new purchase was made in spring 2010. It was obvious that it needed to be an HGV chipper. Mr Waldinger explained his decision. "We cover a huge area where we work. We spend a lot of time on the road. We don't just get to our customers quicker with an HGV. We have less tyre wear, lower diesel consumption and better driving comfort." In the end, the decision was made to buy a JENZ chippertruck with a 480 hp engine and an add-on HEM 582. This machine enabled the company to secure a very large contract in Hessen. This was a windthrow area in which he produced around 8000 bulk cubic metres of woodchippings in

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around two weeks. Even during this fi rst deployment, the chipper truck exceeded its expectations. Throughputs of 200 bulk cubic metres per hour were not uncommon, and all that at very low fuel consumption.

Conveyor belt success story

An outfeed conveyor was then retrofi tted in December. Immediately afterwards, Waldinger was awarded a huge contract at a paper factory: pre-shredding of peeled tree trunks for material recycling. The requirements on the woodchipping quality are extremely high in such jobs. With the conveyor belt, the chipper truck was able to produce precise chippings with very low fi nes content. "I would never have won this contract and job without the conveyor belt. Other chipper companies fell at this hurdle. We have lots of customers who look very carefully at the output of the chipper. Our conveyor belt woodchippings have become quality standards for wood gas plant operators." Waldinger started to do business with a heating plant in Austria only

because his machine did not produce any dust and worked considerably quieter than a chipper with an ejection blower. The plant is in the middle of a housing estate. Dust and noise are extremely undesirable here.

Economic effi ciency and fl exibility

The conveyor belt also has considerable benefi ts in terms of economic effi ciency: it requires much less power than an ejection blower. That means there is more motor power available for chipping. On top of this, the belt is subject to considerably less wear. When processing dirty source material, the machine can operate at a lower rotor speed as the belt ensures a reliable outfeed. This means that the wear on the chipper is considerably reduced. With its large swivel area, variable speed and a loading height of 5.2 m, the conveyor belt offers almost as much fl exibility as an ejection blower during material outfeed. Despite this, Mr Waldinger still wouldn't want to do without the blower. Should it be needed it is there and ready for use.

The right decision!

The new chipper truck has been in operation for a year now. The counter shows impressive 1100 drum working hours. In addition to the economic effi ciency, Mr Waldinger praised the high resale value of a JENZ machine. He is very satisfi ed with the service and spare parts provision. He has certainly not regretted his decision to purchase another JENZ. The company is now well-equipped to survive diffi cult competition in the future as well.

Our Tipp: If you want to see the conveyor belt technology visit www.jenz.de and watch the video.

To fi nd out more about Lorenz Waldinger´s company visit www.

lorenz-waldinger.de

short facts

Engine main drive:480 PS

Performance: up to 200 srm/h

Materialaustragung:fan and conveyor belt with a5,2 m loading height

14 – www.jenz.de

Plenty of space on long trips

ReTec puts a gigaliner with integrated chipper on Sweden´s roads BY JÜRGEN KRÜGER

Motala/Schweden. The thing which is still subject to experimentation in other European countries has long been part of the scenery in Sweden. The gigaliner. This huge giant at 25.25 m long and up to 60 t admissible overall weight has been carrying goods safely from A to B in the land of the elk for years now. The novelty is that there is now a gigaliner with an integrated chipper.

This sort of thing is being operated by ReTec Byggnation AB, which belongs to ReTec Miljö, the JENZ dealer in Sweden, and the MaskinCity I Motola AB machine dealer. Thomas Jessen is partly responsible for marketing the gigaliner. ReTec and MaskinCity have already sold seven of these trucks in Sweden together, and the customers are over the moon. „One of the biggest advantages is that just one person can operate both the

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HGV and the chipper“ enthuses Jessen. The four-axle tractor and the three-axle trailer can carry up to 100 m3 of woodchippings. This makes the investment in such road giants even more worthwhile, especially because distances between the woodfi red heating plants are very large in Sweden, as Jessen says. JENZ is constructing and supplying the HEM 561 R mobile chipper as a version without running gear and engine for the gigaliner.

ReTec Byggnation fi ts the HEM 561 R on the gigaliner tractor chassis, which is mostly a Volvo or a Scania. The rest of the space is taken up by a bunker into which the HEM 561 blows the woodchippings it produces. The trailer has been designed completely as a bunker. When he has a crane to hand, the customer is capable of processing whole trees of diameter up to 60 cm, light cuttings and forest residue with only one man directly

on site. „The fact that the gigaliner manages with only one engine does of course have an effect on the costs“ says Thomas Jessen.

ReTec Byggnation is currently working on the new gigaliner 2.0 generation, which is expected to show several improvements in comparison with the fi rst version.

short facts

Performance potential:hardwood: 42 cmsoftwood: 56 cmthroughput: 150 srm/h

Intake opening: 650 x 1.000 mm

Rotor diameter: 820 mm

Number of blades:10, optional 20

Material outfeed:fan

Date Trade Exhibition Location RepresentationMay04.05. - 06.05. Bioenergy Expo Verona (Italy) Ladurner12.05. - 15.05. EXPO WOOD Brasov (Rumania) Forest Power13.05. - 15.05. Legno Energia Longarone (Italy) Ladurner26.05. - 28.05. Skogs Elmia Jönköping (Sweden) ReTec Sweden30.05. - 03.06. Ligna Hanover (Gemany) JENZ GermanyJune10.06. - 12.06. Dimaf Rialto (Italy) Ladurner16.06. - 18.06. Asturforesta Asturias (Spain) MasiasJuly15.07. 9. Maschinentechnischer Informationstag - KOMPOSTIERTECHNIK 2011 Waldkraiburg (Germany) JENZ GermanyAugust07.08. Fendt Feldtag Melk (Austria) JENZ Austria18.08. - 21.08. Forstmesse Luzern Luzern (Switzerland) JENZ GermanySeptember07.09. - 11.09. Rieder Messe Ried (Austria) JENZ Austria08.09. - 11.09. MAXPO Helsinki (Finnland) Ideachip08.09. - 10.09. Inno Lignum Sopron (Hungary) Forest Power23.09. - 25.09. Forlener Biella (Italy) Ladurner22.09. - 24.09. Klimaenergy Bozen (Italy) LadurnerOctober18.10. - 20.10. Expobioenergia Valladolid (Spain) Masias11.10. - 13.10. Austrofoma Stift Rain / Steiermark (A) JENZ AustriaNovember09.11. - 12.11. Ecomondo Rimini (Italy) Ladurner15.11. - 19.11. AGRITECHNICA Hanover (Germany) JENZ Germany29.11. - 02.12. Pollutec Paris (France) Noremat30.11. - 04.12. Austro Agrar Tulln (Austria) JENZ Austria

Trade exhibitions 2011Correct on 27.04., subject to change

Petershagen-Wegholm. Quality management in accordance with the internationally applicable standard ISO 9001:2008 has been established at JENZ for several years now. The environmental management system in accordance with ISO 14001 was under development for one and a half years and is now certifi ed for the fi rst time. This standard specifi es requirements on an environmental management system which are recognised

the world over, and it relies on continuous improvement processes. Werner Schlegel is the management executive at Jenz GmbH and knows: „The certifi cate is only a testimony to the outside. It‘s much more important that we experience environmental management on the inside.“ The continuous improvement process is based on the so-called PDCA method (plan-do-check-act). For this purpose JENZ had to specify company

wide environmental policies, objectives and program. Werner Schlegel is the person who managed the project right from the start. He drew up objectives from material and energy fl ows which reduce emissions such as waste, wastewater, noise and exhaust gases. At the same time, Mr Schlegel needed to keep an eye on the JENZ credo: Applying energy effi ciently and economically and relying on renewable energies.

„Environmental protection is worth it“

JENZ certifi ed to ISO 14001BY JÜRGEN KRÜGER

TÜV NORD CERTGmbH

DIN

E

N ISO 9001/ 14

00

1

Freiwillige Zertifizierung