Oy Robit Rocktools Ltd customer magazine
Brainstorming
resulted in
HTG p. 14
Tampere builds underground p. 4
New Zealand discovers Robit p. 12
1/2010
bulletin
Contents:
Editorial
ROBIT 25 YEARS
Editorial ............................................................................. 3
Lemminkäinen and P-Hämppi in Tampere ............................. 4
Skanska and Sokos in Tampere ........................................... 5
Strong partnerships are an asset in
the thermal well drilling market ........................................... 6
Significant partners in the subcontractor supply chain ......... 8
Robit’s extension almost completed .................................... 9
Robit retailer Henry Viita . ................................................... 9
Aço Fiel – Portugal ........................................................... 10
Employee of the Year 2009 – Maarit Turpeinen .................. 11
Blick Industrial – New Zealand .......................................... 12
Brainstorming . ................................................................. 14
Last year our motto was “Winners never
quit – quitters never win”. It proved to
be true and I feel like using it again for
another year. There are clear signs of
improvement, which for us has meant
unshakable faith and hard work.
This year our goal is to achieve the
same revenue level as we did two
years ago. Our reasoning is this: new
mines are being opened, as opposed
to last year which saw many closed
and governments are investing in
infrastructure. A highway intersection
with 17 lanes will be built in Vancouver
and an eleven kilometer long tunnel is
being built in Malaysia. Now is the time
for big projects.
An old Finnish saying goes: “The
poor shouldn’t buy cheap”. In these
economically demanding times people
invest in quality. Our customers invest in
quality and so do we. We will introduce
new products again at the Bauma
fair, including the HTG product range
designed together with our customers.
We will also launch our NS system on
a larger scale.
Our factory extension is nearly complete
and if you ever happen to be in the area
you are more than welcome to visit
us. Our modernized facilities enable
our production team to operate more
efficiently and safely. When it comes to
product development I can reveal this
much, in rock drilling our main focus
is on the further study and testing of
button shape and material.
This year Robit will celebrate its 25th
anniversary. We will celebrate the
anniversary working. The recession
piled up a lot of construction needs
and we will go through some of them
in this magazine. I hope that the future
is looking brighter in your field as well.
Jussi Rautiainen
CEO
COVER PHOTO:
In the back rows from left to right:
David Delorme, Joonas Tammisto, Mikko Heinonen,
Sami Eskelin, Torsten Bonde, Olli Kellokumpu, Pasi Korte,
Robert Arnoldsson, Per-Erik Lindström, Andreas Stelke,
Jussi Rautiainen, Hal Hinkkuri, Francois Caro, Fran Larrañaga,
Daniel Liu, Kari Juntunen, Mikko Mattila
Seated:
Carlos Borelli, Petri Vihavainen, Jose Ignacio Zabala,
Lucas Magalhães, ShangHwi Lee
2
Robit Bulletin
3
Tampere, the biggest Nordic inland city is located on a narrow
neck of land between two large lakes. Traffic will always be problematic
in the city center. Lemminkäinen Infra is building a solution in part to
solve the problem; P-Hämppi under the main street.
The future
inside the rock
The underground parking garage has been outsourced
by Finnpark Oy, which is entirely owned by the city.
Pauli Välimäki, a member of the Finnpark Oy board
and the chairman of the construction committee,
says that the plan for P-Hämppi was drawn over
10 years ago. The project was not put into practice
then as it was not profitable to do so at the time.
There are a total of 970 parking spaces of which 200
have been sold to VR (Finnish railway), the Scandic
hotel, Stockmann and other entities on Hämeenkatu
that have reserved parking for their personnel and
customers. There is elevator access from the garage
to street level, which reduces people’s need to drive
on the main street between visiting different shops.
One of the main goals has been to make the city
center more appealing.
Lemminkäinen Infra is the biggest foundation
engineering company in Finland. The project includes
three of the four sectors of civil engineering and it
employs 60-70 employees in two shifts. The garage
being 32 meters wide, 10 meters high and 650
meters long (over a kilometer when you include the
ramps), is a demanding site.
Site manager (foundation engineering) Jussi
Kiuru says: “This is a very challenging project, as
are all city center projects…” he goes on to give a
list of examples. “We have to take into consideration
the existing infrastructure: 500 mm water pipes,
sewers, district heating, electricity and phone cabling,
excavation vibration and traffic arrangements in the
city center as well as VR’s train traffic control systems,
when making shafts in the existing buildings.”
“We are 30 meters below ground level and
also below groundwater,” site manager Pentti
Nieminen says. “We are taking the environment
into consideration so that both suffer as little as
possible.”
An outside consultant has defined a vibration
limit for each property and the blasting is monitored
by a dozen or so real-time vibration meters. The
blasting progresses at 2 to 6 meters (approximately
23-100 m3) at a time. This is preceded by exploratory
drilling, water leakage measurements and jet grouting
4
Robit Bulletin
CONSTR
U
SITE RE CTION
PORT
1.
2.
3.
More holes in the surface
4.
1. Site manager Jussi Kiuru is facing
a demanding project.
2. Site manager Pentti Nieminen is responsible for the progress and safety at the site.
3. Approximately 150 of Robit’s 323 mm ring
bits have been used in the piling of the shafts
and ramps.
4. A ring bit is welded onto the steel pipe.
The system has proved to be safe: i.e. the air
flushing doesn’t let the air escape outside
the pipe.
(hardening the rock with a suspension of
cement and water). Here, in Tampere the
rock has been good and hard.
80 to 150 holes are drilled for the
explosives, so it’s not one big bang but many
smaller ones. The amount of simultaneously
exploding charges affects the amount
of excavation vibration. The amount of
explosives can be adjusted by changing the
drilling and charging patterns.
The process continues by reinforcing the
walls and ceiling with steel fiber reinforced
shotcrete which has been quality assured
through preliminary tests and structure
samples. The customer keeps the project
open and the progress can be followed on
the internet. The construction company,
of course, organizes regular information
sessions for the owners and superintendents
of the properties.
Robit has provided the site with DTHRoX+ products. In other words, while I’m
writing this, there are approximately 150
Rautaruukki steel pipes in the ground
supporting the buildings, ramps and shafts.
Pentti Nieminen says that safety is the
number one priority in these demanding
conditions. “Robit’s DTH-RoX+ drilling system
doesn’t let the air escape outside, which
could weaken the nearby structures. High
quality and a quick turn-around time are also
important.”
OF TAMPERE
Skanska Infra Oy’s general supervisor Jani Juvonen is sitting in
the project office surrounded by modern IT equipment. The office
is in a garage on Kuninkaankatu, but the street itself doesn’t even
exist at the moment. A hole 100 meters long, 14 meters wide and
4 meters deep is being made here. The underground section of
the Sokos department store will be expanded by approximately
1000m², filling the space.
“The work stages as such are nothing new to us, but the working
environment and the tight schedule makes it challenging to organize
the stages. There are many things to take into consideration, like
the stores’ opening hours, people’s movements around the area
and of course the existing municipal engineering. Therefore, some
of the work needs to be done at night.”
Most of the removable soil is silt and moraine. There’s not much
rock to be excavated. Here too, the basic structures are the pipes
that are drilled into the ground with Robit’s DTH-RoX+ ring bits.
In these conditions, air flushing is a crucial factor. The DTH-RoX+
system has proved to be safe in all conditions, partly because of
the pressed drive shoe.
“Safety is extremely important when working in a built-up
environment,” Jani Juvonen says. “We have real-time vibration
sensors and during piling we do daily precise leveling which monitors
settlements accurate to within one tenth of a millimeter. We always
know exactly what is going on. In addition, a laser scanning has
been done to the facades. Millions of points are measured in the
beginning and at the end of the project, and also during the project,
if necessary.”
5
One of the leading Finnish contractors
in geothermal drilling is Tom Allen Oy.
The company has been growing strongly
during the past few years and currently
employs approximately 50 people. Tom
Allen, the founder of the company, says
that the drilling equipment has developed
significantly since the 1990s.
”The benefits of the Robit system
become more obvious in rock drilling. Using
the old methods, steel casing was a lot
slower and more difficult than overburden
drilling. The Robit system makes rock
drilling just as easy as overburden drilling
- no matter what the depth is,” Allen says.
Allen thinks that this year will be a record
year in the ground source heating market,
although the beginning of the year has
been slow. ”The total number of sold
ground source heating pumps may rise
up to 8000 in Finland.”
1.
Strong
partnerships
ARE AN ASSET IN THE THERMAL WELL DRILLING MARKET
2010 will be a breakthrough year
for geothermal heating in Finland.
Until now, the locations have been
small, but this year geothermal energy
will also become the energy form of
many large properties. Robit Rocktools
has made its way into the business.
It requires skillful partners and
one of them is the Irish hammer
manufacturer Mincon which operates
actively also in Sweden.
6
Robit Bulletin
The first ground source heat experiments in Finland were carried out
over 30 years ago. Back then the ground and rock drilling technology
was rather rudimentary compared to the modern technology of
today. The air pressures in compressors were low and the bits were
chisel bits instead of the current tungsten carbide button bits. Now
compressors are more powerful and bits have a longer lifespan.
Even a deep hole can be drilled in a day, whereas before it took a
week to complete a similar task.
In water well drilling it is sufficient to drill until the groundwater
is reached. In the Finnish bedrock the holes hardly ever need to be
more than 80 meters deep when drilling water wells. Using modern
equipment, that kind of hole can be drilled in one day. In ground
source heating projects, it is harder to reach the ”one hole per day”
goal, because the holes need to be deeper and the drilling power
slows down significantly under water. ”Therefore, it’s important to
be able to use drilling equipment that doesn’t have any weak links.
The bits need to be durable and the work must progress efficiently.
Mincon’s down-the-hole hammers are a good solution, because
with them the drilling speed is sustained better under water level
compared to other hammers,” explains sales and marketing vice
president Mikko Mattila from Robit Rocktools Ltd.
INTERNATIONAL COOPERATION. The
cooperation between Robit Rocktools and
Mincon International dates back to a time
before the ground source heating boom
began. Both companies had noticed the
strengths in each other since they operated
in the same markets but with different
products that didn’t compete with each
other.
”I think it was Robit that was first actively
looking for international distributors for its
drill bits,” says Mincon Sweden AB’s CEO
John Gøytil.
Mincon’s Swedish subsidiary is one
of five subsidiaries of the Irish group. All
the subsidiaries are located in countries
with significant mining industry production
– in addition to Sweden; the other
subsidiaries are based in South Africa,
Canada, Australia and the United States. In
European countries especially, the ground
source heat applications have drawn level
with the customers’ traditional lines of
business.
2.
3.
”There are an estimated 300 well
drilling companies in Sweden and most
of them are now our customers. There have
been large ground source heat projects in
Sweden over the past five years. This year
we will deliver our products to the project
sites of IKEA department stores in Karlstad
and Uppsala. Although the holes are ”only”
120 meters deep,” Gøytil says.
Gøytil estimates that the Finnish thermal
well drilling markets are at the same stage
as the Norwegian markets. According to
him, Germany has also gained a lot of
experience in large ground source heat
projects. The experience gained from the
Swedish and German projects is beneficial
now that ground source heat drilling is
becoming more popular in Finland.
”Cost-wise it’s essential that drilling
progresses efficiently under water as well.
Mincon’s new down-the-hole hammers
enable the contractor to complete even a
deep hole the same day. The limit before
a bit change is required is around 200
meters, depending on the condition of the
rock’’ Mikko Mattila says.
He regards Mincon’s down-the-hole
hammers as the best on the market. That
is the reason why the cooperation started
and has become stronger. Correspondingly,
1.Sami Eskelin (on the right), Mikko Mattila and John Gøytil think that customers should be given the best overall solutions.
2.Product manager Sami Eskelin with sales and marketing manager Mikko Mattila know from experience that ground source heating works, because Robit’s new facilities in Kerava
is heated by way of ground source heat.
3.John Gøytil has been running Mincon’s
Swedish subsidiary for three years. Mincon
was originally founded in Ireland in 1977.
Mincon values Robit Rocktools’ bits and
has been selling them in its homeland
Ireland since 2005.
TWO-DIGIT GROWTH NUMBERS. Robit
Rocktools has extended its sales network
recently in Finland as well. The southern
Finland service center opened in Kerava
last June as part of this strategy.
”We are confident that the growth will
continue in the traditional thermal well
drilling markets, in detached houses as
well as in large properties. It’s important
that we can provide these locations with
an extensive range of products, including
Mincon’s down-the-hole hammers,” says
Robit Rocktools’ product manager Sami
Eskelin who does field work from the
Kerava office.
Mincon’s down-the-hole hammers and
Robit’s ring bits form such a combination
that it is worth taking to the growing
Russian and Baltic markets as well. Robit
Rocktools has years of experience there
and it is only a question of time before
geothermal energy will become popular
in this area. According to Eskelin, there is
capacity for that, even though the Finnish
markets are growing by approximately
twenty percent every year.
7
SIGNIFIC
PARTNE ANT
RS IN
THE SU
BCONTR
ACTO
SUPPLY
CHAIN R
Robit retailer
Henry Viita:
Something new
has to be invented
every day
Logistic Oy’s facilities are located in
Pirkkala, next to Tampere. What do visitors
notice when they go there? It seems like
the facility is full of robots that shape
metal into pieces without anyone touching
them. Between the machines there are
small “computer rooms” from where
the machines’ automation is controlled.
Even in this field, humans still outsmart
a machine and hence the human makes
the final decisions.
Some single pieces are still done by
the professionals with less automation.
In one corner there is a group of men
whose overalls have the name of another
company on them. What is this all about?
8
Robit Bulletin
Joonas Tammisto says that R&D and
factory maintenance are Logistic’s other
strong points. Their customers include
companies from the paper industry to
nuclear substations and from a leading
crane manufacturer Konecranes to the
international technology group Metso etc.
Prototypes and even single products are
done together with the customer, that’s
why there are men whose overalls have
a different name on them.
The company’s other strong point is
specialization. In one of the buildings,
there is a large chunk of metal which turns
out to be a piston for a ship’s engine. In
another corner, there are Robit’s big rock
drills and larger ground drilling products.
There are also some prototypes that are
being tested.
Logistic Oy’s power duo
Jussi and Joonas Tammisto.
“We are confident that it’s worth doing
this business in Finland and Europe,”
Joonas Tammisto says. “Prices are like in
China, but we produce better quality, do the
work just as quickly and of course, provide
good service. I regularly go abroad to see
what others are doing in their countries.
You have to invent something new every
day to ensure the continuous growth of
productivity.”
Tammisto describes the cooperation
with Robit as fruitful. “We communicate
openly. In many things Robit takes the
initiative and vice versa. Our design
programs are naturally compatible with
Robit’s programs, so we can throw ideas
back and forth electronically to find the
optimal manufacturability.”
Logistic TKT
Systems Oy
in a nutshell
• Family owned company, founded in 1992
• R&D, Factory service &
Specialization
• Personnel 24
• Revenue approx. 2 million euros
(2009)
• 3000 m² facilities in Pirkkala,
Finland
Just before
Labor Day
Customer service
requires hard work
Robit’s factory extension will be completed
on the 30th of April, just before Labor Day
which is celebrated on the 1st of May, in many
countries. Even though Labor Day celebrates
the eight-hour working day, Robit’s extension
means that we are able to celebrate the fact
that we can manufacture high-quality bits
efficiently up to 24 hours a day.
Entrepreneurship must run in the family genes. Henry Viita
comes from an entrepreneurial family, even his 4-year-old
has been heard to say “I don’t have time to eat, because
I have to go pack some things in the warehouse”. The
entrepreneur always conforms to the demands of the
marketplace…
Henry Viita started in the business 15 years ago
– almost, anyway. Since then he has worked for KeskiSuomen Räjähde Oy, a specialty store which sells
excavation explosives and detonators. Through his work,
he has gradually got to know the earth construction
and excavation companies as well as its people in the
Pirkanmaa, central Finland and Ostrobothnia regions.
Viita started his own company in 2004 – first as a sole
trader and then later as Hewix Oy when rock drills became
part of the product range. He noticed the opportunity to
provide his customers with a more comprehensive service;
just like explosives, drill bits are also consumable items.
Wouldn’t it be easier for the customer to get them from
one place?
Viita spends his days serving customers, often on
the road. Just like many other entrepreneurs, Viita does
the office paper work, orders and emails in the evening.
Constant communications with customers gives him
information about current projects, their locations and
the equipment used. Therefore, he always travels with
an extra supply in addition to the ordered and agreed
products. The permanent Hewix center is in Tampere, in
the Rusko industrial area – under the same roof as KSR.
Viita values greatly the people in his line of business.
”They are real professionals.” He doesn’t want to make a
big deal of his own knowledge in the field. ”I have learned
a lot from the Robit people,” Viita says. ”They have strong
expertise in this field.” Viita values the fact that the products
are made domestically and locally. He also values the fact
that cooperation with Robit is simple, quick and open.
9
AÇO FIEL
– playing a part in
the biggest projects
in Portugal
Question: Could you briefly describe
your company?
Answer: Aço Fiel started in March 2002 and
its main products are drill bits and hammers.
Q: What is the current position of
the company in Portugal?
A: Today Aço Fiel is a respected operator
in the Portuguese construction and related
markets. A clear evidence of that is the fact
that our company has been a supplier for
several important projects during the past
few years.
1. Subway tunnel
2. Support structures in
the Hidroalqueva tunnel
3. A well in a future subway station
4. A well in the Hidroalqueva project
2009
1.
MAARIT
gets to play
with machines
2.
Q: How does the current economic
situation show in your line of business?
A: At the moment the economy is slow, but
the Portuguese government has launched
several projects to revive the economic
situation.
Q: How did you start cooperating
with Robit?
A: Our cooperation with Robit Rocktools
started in 2002. We contacted them by
email and that’s how it began.
3.
Q: Does it matter to your customers where
the Robit products are manufactured?
A: Yes. Portuguese customers consider the
”Made in Finland” products to be of high
quality.
Q: What are the advantages of Robit’s
products and services?
A: Robit’s products are of high quality and
their service is efficient and reliable.
Q: Do you have any special requests for
Robit in the future?
A: We wish sustainable growth and more
high-quality products!
10
Robit Bulletin
EM
OF THPLOYEE
E YEA
R
4.
Maarit Turpeinen is a driller. However, she is not one of
those drillers who use Robit’s bits to make holes. She’s
one of those drillers who make holes into Robit’s bits
so that buttons can be inserted. Furthermore, she’s a
driller who likes her job. Maarit likes the fact that her
job is independent.
She has been working at Robit since the autumn
of 2006. So, what is drilling? Modern drilling is quality
control and programming. Sure, the drills are automated
CNC machines, two of which are completely robot
controlled, but the human is smarter than the machine.
Quality needs to be monitored very carefully. Drills wear
and after tempering there may still be subtle differences
in the bits. Then you must make sure that the (button)
hole is within limits.
Each bit requires a specific program and new bits are
launched all the time, which means that Maarit has her
hands full with programming. If need be, she’s able to
monitor 4 or 5 machines at the same time. If her own
work permits, she does what Robit people always do
– she helps others. Maarit has participated in almost
everything that goes on at Robit – inserting copper
plates under buttons, packed products etc.
So what does cheery, lively and hard-working Maarit
do in her spare time? She lives with her partner and
10-year-old son in their own house. One might think
that considering the house was built in the 1950s and
there is always something that requires fixing that her
schedule would be full. But that’s not enough for Maarit.
In her small greenhouse she grows tomatoes – the best
in town. That’s not all, she got exercise vouchers from
Robit and decided to go the gym – and she got hooked.
11
Robit in New Zealand
”Robit will become a synonym for
rock drilling and well-known in piling.”
3.
1.
We offer
the best
products in
every field
New Zealand is an island country in the Pacific Ocean
with a population of more than 4 million. According to
many statistics, it offers the best conditions for human
life. Its climate and environment are ideal, social development is balanced and prosperity reasonable.
2.
1.Tim Babbage and behind him the beautiful Southern Alps
2.New Zealand is a beautiful country but geologically young, which makes it
challenging for drillers.
12
Robit Bulletin
Blick Industrial has provided drilling
equipment for 40 years. In 2005,
three employees acquired the company
from its original owner. Since then the
company has been steadily expanding
its customer base as well as its product
range. Tim Babbage defines it like this:
“We focus on offering the best products
in every field. We work closely with
4.
3. Blick Industrial spends a lot of time
visiting its customers at their sites to
make sure the drillers have the best
possible products for their needs.
4. Robit’s Dawie van der Walt going
around locations with Tim Babbage.
5. The volcanic ground in New Zealand
is full of ridges and cracks, which
makes each site very different from
each other
Blick Industrial wants to cooperate with
suppliers that are specialists in their
fields. Robit is a prime example of a
company that Blick Industrial is proud
to be cooperating with. Robit supports
its products with its technical expertise
and guidance.
Do the customers know where the
Robit products come from and does
it matter? ”Absolutely,” Tim Babbage
replies. ”We want to be completely
honest with our customers about all
our products. I believe that the Robit
brand and Scandinavian origin give
great credibility to its products.
New Zealand is a small country and
within the next few years Robit will
become a synonym for rock drilling
and well-known brand name in piling
as well.”
Blick Industrial sees a bright future
ahead. “We serve the entire drilling
industry in New Zealand - from well
drilling to piling and from mines to oil
fields. Previously our focus was on well
drilling and mining, but during the past
five years we have expanded so that
today we are the drilling equipment
supplier for the whole of New Zealand.”
“We will continue our growth by gaining
many new customers in those areas
where we are expanding, and on
the other hand by selling more to our
existing customers. I expect the Robit
product range to grow fast, as even more
customers become familiar with it.”
How can a Scandinavian company,
like Robit, adapt to the conditions
and requirements of New Zealand
(technically, culturally etc.)? Tim
Babbage has a clear answer. “We
believe that regular visits here will give
a better understanding of our markets.
Good marketing material and brochures
and naturally high-quality products will
continue to be the most important
factors.” The following answer is not
as clear. ”Our contact person Dawie is
a bit of problem, though. He doesn’t
understand that the All Blacks are
better than the Springboks. It would
be good if we could educate him in this
matter. (Editor’s note: This must refer to
the rugby rivalry between New Zealand
and South Africa. Dawie is a native of
South Africa.) Despite his ignorance
of rugby, his regular contact and visits
are crucial in building a strong local
presence together with us. We are
extremely happy that we have Dawie
taking care of our business.”
5.
manufacturers and customers to build
long-term relationships. Competition
is fierce in all product groups, Atlas
Copco and Sandvik are our strongest
competitors. We go with our customers
to see their projects and sites to get
an exact idea of what their needs are.
We want to make it easy for them to
concentrate on drilling by providing them
with the best possible tools.”
4.
13
BRAIN
STORM
Fruitful
Brainstorming
2009ING
1. Here the table is still full of older
models, but a new one is already taking
shape in the experts’ minds.
2. The ball is in Hal Hinkkuri’s court – also symbolically.
3. Lucas Magalhães found a new friend.
4. Flags of the participating countries.
5. Jussi Rautiainen tells the visitors about
Robit’s new plans.
6. Paintball was one of the Brainstorming
group’s activities.
November is a dark month in the Scandinavian region. Robit’s
almost legendary Brainstorming was a lot brighter than the pale sun.
The international team came up with great ideas and created
a new product, Robit’s HTG drill bit series.
There were people from both the New and Old World from Sweden to Germany, from Brazil to Canada and from
Norway to Spain etc. The group started throwing ideas
around with a fresh approach. Different experiences,
different customers and different conditions - by refining
all these, we created a new and improved bit series.
However, it wasn’t all hard work for our foreign visitors.
There was time for relaxing, activities included
paintball and informal mingling. New connections were
established and old ones were reinforced, experiences
and tips were exchanged.
2.
4.
Sixteen hours after the team had planned the design of
the new bit, a finished HTG prototype was on the table.
HTG
So what is this new miracle product?
First of all, the raw material will
be provided by Ovako, a leading
European steel manufacturer, which has been providing
steel for Robit’s bits for a long time. Its steel is used
in numerous applications from tools to vehicles, from
construction to railroads and from ball bearings to
windmills.
This international team of experts knows what
the markets need. When they stop and meet to discuss
these needs, they get results: like this Robit HTG
– from the drawing board to a prototype in 16 hours.
1.
The raw material that HTG is made from is Ovako’s Green
Steel. The steel is manufactured at Ovako’s steel plant
in Imatra according to Robit’s specifications. Recycling
steel reduces carbon dioxide emissions by 80 percent.
Furthermore, the aim is to reach an extremely high
level of purity in this steel. The more pure the steel,
the better its overall properties will be retained, for
example concerning the metal fatigue. Pure steel is
also easier to work with.
3.
5.
The tungsten carbide button is not what it used to be
either. The rounder SuperDome button aims to increase
the crushing power and improve the flushing. A buttons
wear resistance is adjusted by the amount of cobalt
(Co). For example in iron mines, buttons that are slightly
softer than the standard button wear and tear more
evenly without forming a so-called ‘’snakeskin’’.
HTG has already undergone several field tests. The
HTG bit frame has proved to be efficient and durable
during use at Polar Mining Oy’s mine in Orivesi, where
the conditions are exceptionally demanding. Come to
Bauma to learn more about the product.
This international team of experts knows what the
markets need. When they stop and meet to discuss
these needs, they get results: like this Robit HTG - from
the drawing board to a prototype in 16 hours.
The bit body is spiral. The shape conforms to the rotating
movement and hence the drill cuttings exit the hole
quicker, which increases the penetration speed and
slows down wear and tear on the bit frame.
6.
14
Robit Bulletin
15
Robit does its utmost
to keep its customers
satisfied.
IDEAS,
SUGGEST
IMPROVE ED
M
COMMEN ENTS,
TS?
Tell us you
Vikkiniityntie 9, FI-33880 Lempäälä, Finland
Tel. +358 (0)3 3140 3400
Fax +358 (0)3 367 0540
www.robit.fi
r opinion
robit@rob
it.fi