Leister : Plastic Welding, Process Heat, Lasersystems, Microsystems
- Weldability of Recycled PVC
- Apr 18, 2013
- Resource efficiency and climate protection are one of the challenges of our time. Recycling of
post‐consumer waste is a considerable contribution toward the sustainable use of materials.
Waste becomes a raw material. Plastics recycling in particular is challenging as the material is
not just easy melted like metals for example and need a high purity for converting into a new
The VinyLoop process for the recycling of difficult PVC waste, processes post‐consumer
materials and produces a ready to use PVC compound. In order to replace virgin PVC compound
with recycled materials, the high specifications of plastics must also be met by recycled PVC. The
VinyLoop process is able to filter impurities at such a scale, that the product is considered by its
clients as almost virgin. To challenge that claim the company Leister has tested the VinyLoop®
Leister is the market leader in the field of welding equipment for plastics processing. Portable
equipment, welding machines and portable extruders are developed, produced and distributed.
The weldability of VinyLoop was tested with hot air and hot wedge welding processes. The
results were exceedingly positive; in tensile and peel tests, the material attains values
comparable to those of virgin materials. Homogeneity, which is such an important characteristic
for welding, is also impressive.
Material Supplier: www.vinyloop.com/en
- New Machinery for Truck Cover Manufacturers in Turkey
- Aug 23, 2012
- Turkey has taken a giant technological leap forward
due to its close ties with Europe. Several industrial
sectors have been upgraded. As a result, they can go
toe to toe with the competition the other side of the
Bosporus, no matter what aspect of the industry. One
example of this new development is the Kadesan
Karadeniz Branda Company located in Istanbul.
Kadesan produces complete truck bodies. Currently,
12,000 truck covers, 20,000 sliding roof systems and
700 chassis bodies are delivered annually to not only
Turkey itself, but also throughout the rest of Europe,
Russia and the Near East. Founded 27 years ago, this
innovative company currently employs 220 people and
is organized into three companies. One of these companies
exclusively produces truck covers. Everything
is executed in-house – from plotting the graphics and
executing the overlap welding for the individual parts,
to welding the seams along the edges and attaching
the tapes through to assembling the grommets and
- More than a safe alternative
- Jun 4, 2012
- BITUMAT B2 in use in Missouri, U.S.A.
Tyson Foods Inc. (TSN) recently required conversion
work on their production facility in Noel, Mo. Although
the roof was to be sealed with bitumen sheeting, the
building owner specified that no welding was to be
performed with an open flame on the roof. A specification
the roofing company, Harness Roofing, could easily
abide by using the BITUMAT B2 from Leister.
- Leister guarantees leak tightness
- Feb 29, 2012
- Even in dry regions rain comes pouring down from time
to time. That’s why flat roofs need to be protected in
these regions too. Above all, when the building in
question has an important role to play – like here. It is
inconceivable what would happen if the roof of the
emergency room in the enormous Sheikh Khalifa
Medical City Complex were to leak. As everywhere else
in the world, those responsible have put their full trust
- Leister tools weld vital ventilation ducts
- Jan 26, 2012
- VARIANT T1 helps to safeguard lives
Air supply is vital for mining work. While in the past
metal or canvas ventilation ducts were used, today
predominantly flexible air ducts are required. These are
manufactured from industrial fabrics by welding with
hot air. The company Duflex has specialized in the production of these air ducts. They are not only used in
mines; they also protect life and limb in tunnels and in
working environments where there is a risk of explosions.
- Ergonomic design saves force and has a lot of grip.
- Dec 23, 2011
- Processing single plies also involves welding work.
One of the most frequently applied technologies utilizes
hot air, be it with welding machines or hand tools. As
an equipment developer and manufacturer, Leister
Technologies AG is a market leader here. Hot air or
wedge welders are used for larger welding sections,
while hand tools with different nozzles are the ideal
choice for short distances and complex details. Next to
manual welding equipment, the most important working
tool is the pressure roller. While the user guides the
welding tool with one hand, he holds the pressure roller
with the other hand and presses the overlap weld seam
together with consistent rolling. Depending on the
material properties of the single ply, he needs to apply
more or less pressure for this. The pressure roller is
therefore an important accessory that, used with
sensitivity and experience, achieves the desired result.
- Only the best for the roof over your head.
- Nov 25, 2011
- The well-known Austrian commercial firm Haberkorn
Ulmer has had a new building erected in Leonding. The
highly complex architectural structure is the first
industrial firm in a newly established enterprise zone. It
comprises an office section with a training and seminar
area as well as a warehouse. The office facility is
constructed with an ultra-low-energy design. It has
hydronic radiant floor heating supplied with groundwater,
ceiling cooling, permanent ventilation, daylight-controlled
lighting and above-average insulation. This
means it fulfills the “Minergie” standard .
- Environmentally friendly welding using lasers
- Oct 31, 2011
- The automobile industry is assuming a leading role in environmentally friendly technology. A special LVS (Liquid Vapour Seperator) has been developed by YAPP for the tank system in the VW Polo for the Indian market. As a specialist in the laser welding of plastics, Leister was integrated in the process and chosen as a laser supplier at an early stage. Linear axes move the GLOBO ball along the welding contour, the components being welded separately.That makes GLOBO welding the perfect solution for products with small height differences. As a result, both the required strengths and tightness are achieved. The pressure applied locally and the simultaneous supply of energy also lead to impressive throughput rates.
- We are local – worldwide.
- Oct 24, 2011
- 12 giant plastic tanks were constructed for the galvanization plant at the new Al Jaber Street Light Factory in Abu Dhabi. Today, up to 20 tons of lamp posts are machined in the completed plant.
In multiple shift operation amid the harsh conditions of a desert summer in the Emirate, the up to 60 mm thick plastic was welded with Leister extrusion welders. This occurred at outside temperatures of over 50 degrees Celsius. The German company C. ILLIES & Co opted for Leister welding tools for construction of the galvanization plant. An important reason for the collaboration was the guarantee by the local Leister partner, BMC Gulf LLC, to provide a 24-hour service.
- Laserschweissen in der Medizintechnik
- Oct 20, 2011
- Das Laserstrahlschweissen von Kunststoffen hat sich in der Kunststoffverarbeitung seit mehr als 10 Jahren
als erprobtes Fügeverfahren etabliert. Nachdem viele Anwendungen in den Branchen Automobil und
zur Serienreife entwickelt wurden, arbeiten zunehmend auch Unternehmen aus dem weiten Bereich
der Medizintechnik mit dieser sauberen Art Kunststoffbauteile dauerhaft miteinander zu verbinden.
- Step sensor with laser technology
- Oct 20, 2011
- Garmin has introduced a new range of highly sensitive measuring units: A step sensor, mounted in the instep of your running shoe, based on MEMS (Micro Electro Mechanical System) measures the speed and route and sends this information to your Garmin wristwatch via GPS. The major challenge when realising an outdoor unit was the airtight connection of the plastic components. In order to meet the strict demands, Garmin used a laser system from the NOVOLAS Basic AT range by Leister, combined with a movement system, and installed in a mobile cell. This arrangement allows Garmin to use the laser welding system not only for its outdoor range, but also for its navigation products.
- Hot air boosts solar power.
- Oct 19, 2011
- Renewable energies are on everyone’s lips. They are set
to cover an increasing share of the energy mix in the
future. Besides wind and water, photovoltaics (PV), is
becoming ever more important among renewable energies.
A cost reduction in PV modules is also playing
a significant role in helping photovoltaics in becoming
even more widespread. This is due to increasing unit
volumes and continuous improvements in production
techniques. One of the many steps in the production
of PV modules involves drying the silicon wafers after
cleaning. Here, the drying time on the production lines of
the Norwegian special machinery manufacturer, Tronrud
Engineering, could be reduced thanks to the use of Leister
air heaters. As a result, the entire cycle time for the
production of PV modules could also be considerably
- Tennis center roof welded with Leister machines
- Sep 1, 2011
- Game, Set and Match to Leister
Tennis is enjoying immense popularity. This holds true
in Switzerland in particular – not only because Swiss
tennis star, Roger Federer, has been flying the flag of
the small Alpine nation throughout the world – but
because of its excellent infrastructure. Modern indoor
tennis courts are springing up all over the country,
affording people the opportunity to play year-round.
One such location has just been completed, the Sports
Core Belpmoos, near the Swiss capitol of Bern.
- Gotthard base tunnel with participation by Leister
- Apr 27, 2011
- Construction of the New Rail Alpine Crossing (NEAT)
project represents a further step in regard to Switzerland’s
integration in the growing European high-speed
network. The core is the Gotthard base tunnel, which at
35.4 miles will be the longest rail tunnel in the world. It
will comprise two single-track tunnel tubes. Construction
is simultaneously in progress on five partial sections of
different lengths, so as to optimize the construction time
and costs. The costs for this gargantuan project are estimated to be around 9.8 billion Swiss franks ($ 10.8 billion).
The construction time will total 20 years. The historic
breakthrough of the tunnel occurred on October 15, 2010
and the grand opening is planned for 2016.
- Hot, humid and dusty – Leister keeps welding
- Apr 1, 2011
- The Doha Convention Centre & Tower, one of the
world’s largest construction projects, is currently
underway in Doha, Qatar. Upon completion, the
100,000 square meter structure is expected to be a
venue of choice for regional and international conventions,
exhibitions, gala events, concerts, weddings and
banquets. This bold design incorporates a three-story
car park underneath the modern four-story building.
- Artificial lagoons in Chile – a landscape of superlatives
- Sep 30, 2010
- World record with Leister
Crystal Lagoons Corp.’s concept and technology enable
to build crystal clear water bodies in almost unlimited
dimensions thanks to its uniquely new and patented
concept. In a region where the sea is too rough and thus
unattractive to tourists, it is now possible to construct
giant artificial lagoon landscapes. There are already
several of these pools in Chile. One of them is situated in
Las Brisas de Santo Domingo. But the world's largest one
can be found in San Alfonso de Mar. It covers an area of
8 ha. In fact, Crystal Lagoonsa Corp. managed an entry in
the Guinness Book of Records with it in 2007. The longest
distance stretches for more than 1 km. You can actually
see it on "Google Earth". An even bigger basin with an
impressive 11.5 ha area of crystalline water is currently
taking shape in the Egyptian resort of Sharm El Sheikh.
- Environmentally Friendly Roofing
- Sep 9, 2010
- ProLogis, a top global provider of distribution facilities,
in partnership with Portland General Electric, a leader
in the charge on clean energy in Oregon, decided to
add solar panels to the massive roofs atop seven
ProLogis warehouses in Portland, Oregon. The
panels would supply reliable, clean energy, which
Portland General Electric could then distribute to its
customers — essentially creating seven mini-power
plants for the energy supplier.
- K-Messe Düsseldorf
- Aug 25, 2010
- Leister is proud to present a wide range of its enormous portfolio at its spacious exhibition stand at the K-Messe. Visitors can come and see products from the areas of plastic welding, process heat and laser systems.
- Hot Air Technology for Improved Quality
- Jun 18, 2010
- The 11th China National Games were held in mid-
October 2009 in the city of Jinan, capital of Shandong
province. These games were China's most important
sporting event after the 2008 Summer Olympics. To
enhance its competitiveness, the Shandong provincial
government produced an action plan to benefit
sustainable development. In view of its position as
the location of the China National Games, the administration
of Jinan itself decided to invest in infrastructure
and the appearance of the city.
- Hand extruders from Leister in use in China
- Jun 11, 2010
- An ambitious company is forging ahead
Laizhou, a small town near Qingdao – the city where the
sailing competitions were held during the 2008 Summer
Olympics – is currently undergoing an economic boom.
This may be attributed in part to its favourable transport
connections and to the unique media attention which it
attracted in connection with the Games. Xin Li Composite
Materials Co. Ltd has been among those companies to
benefit from this unparalleled opportunity and has greatly
extended its product range and sales area. It has transformed
itself from a simple supplier of corrosionresistant containers to a complete provider of waste water treatment plants for
the chemical, medical and metal industries. Xin Li now
maintains a network of branches covering western China,
including the far north.
- Shrinking Sleeves Using Leister Air Heaters
- Apr 9, 2010
- Trend-Setting Shrinking Technology
During the last couple of years, the technology used
to apply shrink-sleeves on bottles has changed. While
steam tunnels were primarily used for shrinking in
the past, today's producers of beverage and dairy
products tend to use more cost-effective hot-air
- 50 000 m2 floor laid for Intel in Vietnam
- Mar 19, 2010
- Vietnam is an up-and-coming country. Competitive personnel
costs and an interesting tax environment are key
factors in attracting foreign investors here. At the same
time, the domestic market is becoming ever more
appealing. All of these reasons made Vietnam interesting
as a production location for the world's largest
semiconductor manufacturer Intel. With its sales
partner "Dong Loi Equipment & Service Co. Ltd",
Leister has had a local presence for a number of
years and is well placed for the future.
- Entire Leister product range in action.
- Jul 15, 2009
- Rolex Learning Center
The EPLF (Ecole Polytechnique Fédérale de Lausanne)
is the confederate university of the French-speaking
part of Switzerland. The “Rolex Learning Center” has
been being built right next to the present-day campus
over a three-year period. It will provide space for 700
students and teachers. In addition to a large library
covering the history of science, exhibitions and conferences
will take place. The complex also incorporates quiet
areas and contact zones and catering facilities. The latest
multimedia technology naturally has pride of place.
- Technological Advance for Printing Giant thanks to Leister
- Jul 14, 2009
- Visitors to Beijing often report to be deeply impressed
by the rapid growth and the prosperity of Beijing. More
and more companies have become aware of the enormous
potential of this economic hotspot. Due to their
efforts to maximize advertising impact for their businesses
or one of their brands, billboard advertising has
become one of the most important marketing instruments
in China. The advantage of billboards is that
they, at relatively little expense, attract the attention of
a large target audience. Whether it be on large citysquares,
alongside business avenues or the highway to
suburbia, or wrapped around new buildings: Wherever
you turn the eye, you will see billboards, telling the
passersby: “Yes – we are here!” RIKON, a big name in
Beijing’s billboard industry these days, has become
aware of the increasing demand on the billboard market
a few years ago. Over the last few years, this company
has become market leader.
- Leister SYSTEM-Interface: Standardised, safe and simple to control
- May 25, 2009
- The Leister SYSTEM-Interface facilitates a simple, customer specific integration of controller and air heater into a regulated hot air process. The control unit “CSS EASY” provides a plug and play interface. The standardised control signal of alternately 4-20mA or 0-10V facilitates the integration of an external control system. To use mutiple air heaters in combination, multiple-input control system may be realised using the specifically designed Leister “Patch Modules”. A small effort helping to safe costs.
- Involvement in major project in the “Middle Kingdom”
- Mar 23, 2009
- Guangzhou, better known as Canton, is a thriving big
city in the south of China. Around 10 million people live
around the Pearl River delta. Due to its proximity to
Hong Kong, it played a decisive role during the economic
opening up of China and is still an important gateway
to the West today. As well the world’s highest television
tower (610 m), currently under construction, the
well-organised public transport is also exemplary. The
vibrant metropolis has adapted to its millions of commuters
and built an impressive transport network. A
large part of the crowds travels underground. Four
lines are already operational, a fifth is under construction.
Since August 2004, builders have been working on the
line traversing the west and east of the city around the
clock. The 43km long line with 29 stops is supposed to
be put into operation as quickly as possible and provide
additional relief for overground traffic.
- The right tool for the job
- Mar 20, 2009
- The Boston Museum of Science wanted to find a unique
marketing idea to promote its upcoming exhibit on
the sci-fi phenomenon Star Wars. It was decided that
the building’s 60m m circumference, 14 m tall dome
was to be transformed into the head the movie’s robotic
- A Clean and Efficient Solution
- Feb 4, 2009
- The use of plastics in medical engineering is increasing
constantly. Apart from medical disposables, the application
of plastics has also become relevant with regard
to complex systems. A further development of existing
products not only aims at saving costs, but also at the
products to become safer and more comfortable for
the patient. This has become a trend with low-cost
ambulant therapeutic devices which are required to
assure the patient’s security and agility at minimised
treatment expenses. An infusion pump by the medical
technology specialist Rowe-Med, which is being welded
by use of laser radiation, complies with these criteria.
- A Roof Done Right
- Oct 23, 2008
- The massive 420,000-square-foot roof atop Food
Services of America’s (FSA) Woodburn, Oregon,
distribution center was falling apart. Seam failures
on the ballasted roof were tearing as fast as 50 feet per
week. The building, essentially a giant cooler that consistently
hovers around -8 degrees Fahrenheit, needed
a new, reliable roof to battle rising cooling costs and
ensure the safety of materials and people inside.
- Loosening Tiles with Hot Air Blowers from Leister.
- Aug 21, 2008
- The sanitation costs for tiled rooms after a burst pipe
or water damage often soar due to the need for retiling.
This means high additional costs for insurance companies
and house owners. Although only a few tiles may
have been damaged, a complete retiling is often necessary
in the sanitation because the old tiles are out
of stock and no longer available.
- The TAPEMAT from Leister in Use for an Art Project
- Aug 15, 2008
- The Basel City Sky
Basle is "the" Art City in Switzerland. The numerous
museums of classical and contemporary art attract
hundreds of thousands of visitors. It is also where the
"Art" is staged every year, the biggest art fair in the
world. Culture in general and the fine arts in particular
have a long tradition at the Rhine bend. It is supported
here equally by the public and by politics. So it's
no wonder that a project was possible in Basle which
would have had no chance anywhere else: The City
Sky. The Christophe-Merian Trust, the Basle City
Canton and a lottery fund support this art and culture
project of the initiator and organiser Klaus Littmann.
- More Than Just Hot Air
- May 1, 2008
- From a spill dating back to the 1970s, Togiak Fisheries was faced with 70,000 tons of diesel- and gasoline-contaminated soil on the shores of Togiak Bay, Alaska.
- Boat-building with Leister
- Mar 3, 2008
- Successful implementation of a business idea.
Turkey is a sea-faring nation with a millennium of shipbuilding
behind it. In a nondescript industrial building, typical
of the more prosperous areas of Istanbul, innovative
products have been created for the past five years: «Turbotsan
» has been building boats made entirely from plastic.
- Better hearing thanks to laser welding
- Mar 1, 2008
- The development of hearing aids has been facilitated
by the incorporation of laser welding using the mask
welding concept. It is necessary to provide protection
in the area of the sound outlet in order to guarantee
reliable functioning of hearing aids that are getting
ever smaller and which are worn within the ear. In the
novel «SmartGuard» cerumen protection concept by
Phonak, a highly elastic, extremely thin diaphragm is
welded onto a small carrier ring. The mask welding
process, developed and patented by Leister Process
Technologies, enables this high-precision joining
- Welding PUR-coated floors with Leister
- Feb 23, 2008
- Products can change quickly no matter what the sector.
The trend towards a wide variety of different products with
an almost limitless array of potential arguments does not
stop at the flooring sector. New products such as PUR
(polyurethane) coated floors promise customers greater
benefits. For the floor layer though, they entail greater care
and, above all, the right choice of tool!
- The Lagoons: a Super Project built with Superior Tools
- Feb 6, 2008
- The sheikdom on the Persian Gulf is developing into
the Pearl of the Orient. More than anything, tourism is
expected to have a long-term beneficial impact on its
economic future. The goal is to entice 15 million tourists
a year to this balmy world on the Gulf by 2015. That is
triple the number of tourists that visit the Gulf today.
Vast numbers of mega-projects are being worked on
with unbridled enthusiasm. Evidence of the building
boom is everywhere. One sixth of all the cranes being
used in the world today, are currently in use in Dubai.
We have seen pictures of them already, the architectural
giants in Dubai: the three «Palms» and «The World»,
giant island worlds built in the ocean, which have been
developed at an unprecedented expense. Or the «Burj
al Arab», the one and only seven-star hotel in the world.
Or the «Burj Dubai», which, when completed, will be
the tallest building in the world at 818 metres high. In
this small desert state, another extremely ambitious
site is being built, «The Lagoons».
- Clear vision in tough conditions
- Dec 17, 2007
- The laser welding of plastics is increasingly finding its
way into series production. Users are especially adopting
the still relatively new technology, if there are specific
requirements concerning the quality of the weld seam.
Siemens VDO in the Swiss town of Rüthi has opted for
laser welding with diode lasers as a means of fastening
viewing glass for heavy-duty instruments which are
primarily used in outdoor applications.
- Precise, sensitive and efficient
- Oct 16, 2007
- Automation ensures consistent quality and saves personnel costs. For example, one plastics technician could be saved for each injection moulding machine thanks to automated hot air deburring of thermoplastic parts. The hot air components from Leister Process Technologies automatically regulate process parameters, such as temperatures and application time of the hot air jet – precisely and comprehensibly. This shows a positive effect in the profitability calculation.
- Precisely targeted hot air
- Oct 16, 2007
- The new filling plant of the established Swiss drinks producer «Elmer Citro» achieves a capacity of up to 20000 bottles per hour. Prior to labeling the bottles, which have been filled and sealed, they have to be dried. A drying system developed especially for this purpose blows the water away in uniform coalescent drops.
- Olympic Games with Swiss Representative
- Oct 16, 2007
- Superlative project
The «Shunyi Olympics Rowing-Canoeing Park» near to Peking is developing to an especially attractive location. Here, literally out of nothing, a gigantic rowing and canoeing park is being created in a 255 hectare large area. Construction is being executed on a 2.2 km long and up to five meters deep rowing and canoeing basin with eight lanes and a wild-water complex. It can still be hardly recognized that in one year Olympians from all over the world will be rowing and paddling for precious metal.
- A «hot» partnership.
- Feb 27, 2007
- Colasit constructs three bio-washer silos with Leister hand extruders in Spain.