High Precision - KMT Precision Grinding AB

High Precision
by KMT
Lidköping
– grinding
with extreme
precision
UVA Nomyline
is the master
of precision
grinding
The reason for KMT
machines’ long lifecycle
ELECTRO-TECHNOLOGY FOR INDUSTRY
The whole world of industrial reliability for
your advantage!
Overview of the manufactured products and solutions
Thermal Management & Machine Cooling
•
•
•
•
•
•
•
Cooling units – fastest installation
Air/water heat exchangers – maintenance-free
Chillers – economically, indoor and outdoor installation
Filterfans – with highest energy efficiency
Thermostats, hygrostats, heaters – safe economizing circuit
Service – everything from one source
PSS – sizing software for your climatisation solution
Signaling Technology
•
•
•
•
•
•
Flashing lights – extremely durable / AS-i versions
Sounders – housing made of die-cast aluminium / SIL conform version
LED lights – durable and energy-efficient
Signal towers – variability in IP 65
Traffic lights – clear signaling
Ex ATEX signaling devices – suitable for use in zones 0 to 22
Pfannenberg GmbH • Werner-Witt-Straße 1 • D-21035 Hamburg • P.O. Box 80 07 47 • D-21007 Hamburg
Phone +49 40 7 34 12 0 • Fax +49 40 7 34 12 101 • sales.support@pfannenberg.com • http://www.pfannenberg.com
Dear reader!
With this magazine, KMT Precision Grinding
would like to inform you about our company
and our products. We are proud of our long
history as one of the oldest company within
this business.
But mainly, we are proud of our leading
position, the experiences and engaged staff
that provides first class products and services.
This issue shows you our contribution to
the wind power producing more energy and
car engines consuming less energy. You will
get to know more about our machines, which
have an unmatched
sustainabilty and how
it feels to work for our
company.
Welcome to KMT
Precision Grinding
– enjoy reading!
Thomas Karlsson,
Managing Director
and CEO
www.kmtgrinding.com
www.kmtgrinding.com
KMT LIDKÖPING Tel: +46 510-88 000, e-mail: infolidkoping@kmtgroup.com
KMT UVA Tel: +46 8-634 75 00, e-mail: infouva@kmtgroup.com
KMT USA Tel: +1 508 634 4301, e-mail: infoboston@kmtgroup.com
KMT China Tel: +86 10 652 20 515, e-mail: infouva_asia@kmtgroup.com
KMT Germany Tel: +49 7152 35 9390, e-mail: infouva_germany@kmtgroup.com
KMT India Tel: +91 981 082 4106, e-mail: infoindia@kmtgroup.com
Publisher: Ann-Christin Sandin Almén Project manager: Jessica Olofsson Editor: Olle Hernegren Photos: Stefan
Svensson, Anders Nilsson, KMT Layout: Örjan Folcke Ads: Sofia Fasth Mediasales: Maud Svensson, Maria
Sveed Production: Roxx Communication Group, www.roxx.se Printing: JustNu, Lidköping 2011
High Precision Grinding | 3
4 | High Precision Grinding
www.kmtgrinding.com
Worldwide leader in the
field of precision grinding
KMT Precision Grinding has, today, subsidiaries all over the world.
The branches in Boston, Leonberg, Lidköping, Bromma, Gurgaon
and Beijing cover all time zones and provide a 24 hours support.
KMT’s subsidiaries in the US, China
and Germany are working with sales
and aftermarket. The production sites
for new machines, rebuilds and repair
work are located in Sweden; rebuilds
are also performed in Gurgaon, India.
KMT Precision Grinding, today’s
world leader in the field of precision
grinding machines, is one of the oldest
machine manufacturers in Sweden.
The company is a merger of UVA
International AB and KMT Lidköping,
which were founded in 1928 and
1875 respectively as Nomy AB as well
as Lidköpings Mekaniska Verkstad AB.
Lidköping started off with the
production of exterior lighting, park
benches, ploughs and other agricultural
products. The engine construction
started in 1902 and in 1908, we
became one of the first suppliers of
SKF, which was established in 1907.
UVA began production of hydrodynamic bearings as well as gearboxes
for among other things railways. n
Some important dates
in KMT’s history:
1875 Lidköpings Mekaniska Verkstad (LMV) was founded
1928 Nomy, which became later UVA, was founded
in Stockholm
1929 LMV is incorporated in SKF
1979 LMV starts cooperation with partners in the US
1982 KMT Precision Grinding GmbH (today’s name) starts
business in Germany
1986 Lidköpings Mekaniska Verkstad AB (LMV) changes its name
to Lidköping Machine Tools AB (LMT)
1996 UVA is incorporated in Karolin Machine Tools (KMT)
2000 SKF sells LMT to KMT
2000 KMT opens office in China
2006 LMT changes its name to KMT Lidköping
2006 KMT Production Machinery India starts business Gurgaon,
India
2007 UVA and KMT Lidköping merge and the company changes
its name to KMT Precision Grinding AB
2008 Nordstjernan takes over all shares of KMT
2008 KMT Beijing starts business in China
2009 KMT Precision Grinding Inc starts business in Boston, USA
2011 KMT has today approx. 180 employees, whereof 105 in
Lidköping and 34 in Bromma as well as altogether 10 to
15 employees in China, Germany, the US and India.
www.kmtgrinding.com
High Precision Grinding | 5
Photo: BMW Sverige
Grinding determines
precision and
thus friction
6 | High Precision Grinding
www.kmtgrinding.com
The accuracy during grinding of raceways is the most important parameter to obtain a
minimum of friction and thereby a long lifecycle and reduced energy consumption. If the
friction of all the world’s bearings could be reduced by ten per cent, energy consumption
would decrease by what a country the size of Brazil consumes during a year.
The KMT LIDKÖPING brand offers grinders that produce the required surface and shape.
The wheels on cars and trains, turbines in all kinds of power stations, the compressor in
your fridge - they all contain components that need to rotate with a minimum of friction,
year after year, and often under heavy external pressure. The principle is a simple one: less
friction, less energy. >>>
www.kmtgrinding.com
High Precision Grinding | 7
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O
!!!
>>> The bearings play a considerable
role at each rotation in order to reduce
friction and guarantee a stable
rotation. The requirements regarding
the production process are respectively
high, not least due to the final shape
of the bearings and the finish during
grinding and polish.
as e.g. on the fitting of the rotor
blade, the turbine axe and the gear
box. The better that bearing performs
its job, the smoother is the turbine
rotation and the lower the energy loss
of the mechanic parts.
The rotating rotor blades are
connected to the turbine axes through
a bearing showing a diameter of upto
four meters. Bearing rings of that size
are grinded by a LIDKÖPING vertical
grinding machine type VTG4000 and
through which the material gets is
shape with the help of the optional
combination of grinding and lathe.
But there are also smaller sizes
found in a wind power station, e.g.
turbine axes and gear boxes.
>>>
Adjusts to the customer
KMT Precision Grinding has been grinding
components for the bearing industry
during the last century and during this
time KMT has continously made
developments of its technology to
adapt to different customer applications. Today, wind power is a growing
industry and an area KMT is focusing on.
– We follow our customers
development in new markets, says
Thomas Karlsson, CEO of KMT. When
our customer was expanding in the
area of wind power stations, new
bearing types were needed. We were
there and developed new machines
covering their needs.
VTG4000
Bearings are found in different locations
in a wind power station turbine, such
www.kmtgrinding.com
– We adjust to the development of our customers
in their markets, says CEO Thomas Karlsson.
Urban Larsson and Marica Egerstad looking at a SUU 320.
High Precision Grinding | 9
“The cooperation with Tube Control has worked
perfectly! The technology consumes less than
half the power and has better performance
than other systems.”
Rikard Löfgren, Development Manager at Pullmax
The Way To The Goal
Together with our customers, we refine system and components using
the cutting-edge competence of our cooperation partners.
This enables our customers to be leaders in their respective markets.
Hydraulic stroke unit
PRoDUCT aDVaNTaGeS:
• High frequency
• Programmable stroke length/time
• Integrated measuring system
• Optimised power consumption
with accumulators
• High precision, servo valves
• Communication via interface
APPLICATIONS:
• Punching machines
• Presses
• Moulding
• Nibbling
• Trimming shears
www.tubecontrol.se
Tube Control is part of the stock exchange listed Addtech AB.
ZIWA
ZIWA
MEKANISK TILLVERKNING
MEKANISK MONTERING
We have a long tradition as a proud
supplier to the KMT Precision Grinding
AB of precision machined parts.
We produce everything from single
prototype parts to parts for mass
production.
Most of our customers are machine
builders to food and engineering
industries. We know what quality our
customers demand and delivers this at a
competitive price.
Box 55, SE-386 21 Färjestaden
With years of experience, from industries
including matches and fish processing,
we are now in our own facilities or at
customer site able to perform renovation
and equipment installation work for the
manufacturing industry.
Together with ZIWA Mekanisk Tillverkning
we guarantee a high quality of newly
manufactured parts.
If desired the same, we also support the
assembly and disassembly instructions
and more.
We have en extensive network of
partners both within Sweden and the
Balkans.
Postal Address
Is a new company in the ZIWA Group.
Phone
+46 (0)485 345 65
E-Mail
info@ziwa.se
>>> The rings for such bearings can be
grinded by LIDKÖPING machines, which
enable internal and external grinding
at the same time in the LIDKÖPING
grinding machine model SUUC600.
The machine performs rough and fine
grinding simultaneously and can
therefore replace upto four machines
in a conventional production line.
The outer diameter of the bearing
ring can also be grinded in a one pass
operation in a Centerless grinding
machine. The rings are loaded in one
line on a workblade into the machine
and are grinded by a shaped tool, the
grinding wheel. The rings obtain the
right shape just in one operation.
Critical processing
Thomas Karlsson stresses how critical
such process is:
– It is determined during the grinding
process how accurate the recess, in
which the ball will be placed, has to
be. The accuracy determines the
friction and, consequently, the
accuracy of the power generation.
But well grinded bearings with high
precision do not only offer the possibility
to reduce the energy consumption, but
also to improve the reliability.
– If the rotor blades are positions in
the wrong axe at high wind forces, this
might lead to severe consequences,
says Thomas Karlsson. The enormous
power may loosen the blades and, that
would be worst case, the complete
wind power station may collapse.
The global expansion of wind power
has slightly reduced lately, even if China
has expanded its wind power capacity
by 75% in 2010 according to the report
of the World Wind Energy Association.
Sales manager Otto Jernström
follows the development of the wind
power market with interests and realizes:
– The demand will return and that’s
when we are ready and able to cover
our customers‘ needs. n
n Linear Encoders
n Rotary Encoders
n Angle Encoders
n TNC Controls
n Touch Probes
n Digital Readouts
n Length Gauges
LANGED Industrial washers
and advanced lego production.
EFFICIENT
ECONOMICAL
ENVIRONMENT FRIENDLY
® Långeds Mekaniska AB
www.heidenhain.de
www.kmtgrinding.com
Tel. +46 (0)531 410 25 • Fax +46 (0)531 400 46
www.langed.com • info@langed.com
High Precision Grinding | 11
Technical Innovation
improves KMT products
KMT Precision Grinding produces machines with high durability
– many try to copy that, but the mechanical parts work smoothly
even in machines produced in the 1970’s.
Fredrik Wikström,
Technical Manager
at KMT Lidköping.
Urban Myrefors, Plant
Manager at KMT
Bromma.
– There are many reasons to use
hydrostatics, says the Technical Manager
at KMT Lidköping, Fredrik Wikström.
The have been using the technology
for a long time and we have very
strong solutions.
One solution contains that the
movable disc on which the tool holder
has been mounted to, a so-called slide,
is placed above a fix disc with a
hydrostatic bearing in between. The
bearing consists of a thin oil film determining the distance between the
individual slides to about 0,025 mm.
– Our construction leads to the fact
that the force increases through the
oil, says Fredrik Wikström. That means
that, regardless of what is installed on
the upper slide, the distance between
the upper and the lower slide remains
always the same. Therefore, the slide
moves with a very low friction and,
consequently, without any wear-andtear of the machine’s mechanical parts.
Linear motor for fast action
The slide’s movements are controlled
by a linear motor, which has no
movable parts. The combination of the
linear motor and the hydrostatics leads
to a solution, which basically shows no
wear-and-tear. It is a robust solution
when high precision grinding and
capacity is required. In addition, the
linear motor provides the possibility of
fast acceleration and retardation.
This requires that the machine is built
stiffly. Resistance to forces is only then
guaranteed and provides fast reaction
time at movement of the spindle.
– Our machines are designed for
short cycle times and high precision,
says Fredrik Wikström.
Nomyline grinds small details
Urban Myrefors is Plant Manager at
Bromma, where the Nomyline machines
are produced. He presents the
measurement equipment controlling
the parts for fuel injection in a Diesel
engine. Less than one thousandth
millimeters – that is the deviation
allowed at precision grinded parts.
There are different technical
solutions in order to reach such values
and which makes the difference
between Nomyline and its competitors.
– The direct operated chuck presents
one of the characteristics. Earlier there
was the belt-driven process, which could
Customized sheet metal work is our specialty
lars@jarpaskomp.se
www.jarpaskomp.se
12 | High Precision Grinding
Sweden
Tel. +46 (0)510-915 16
lead to vibrations. But as the motor is
located directly on the chuck, the parts
can be grinded with higher precision
and less maintenance.
Another technical solution, which
Urban Myrefors likes to stress, it the
so-called “Pivoting Spindle Holder“.
A unit corrects the minimum bulge of
the grinding tools during the grinding
process, by placing the slide into such
an angle that the contact with the
hole in its full length remains. This
guarantees that the holes to be
grinded are cylindrical within the
fraction of one miron (µ).
Notion for technical innovation is
the reason for the unique market
position of KMT. n
The slide moves with a very
low friction and, consequently,
without any wear-and-tear of
the machine’s mechanic parts.
Transmisson & Linearsystems
WWW.ARATRON.SE
PHONE + 46 8 40 41 600
www.kmtgrinding.com
www.kmtgrinding.com
High Precision Grinding | 13
Manufacturer of
High Precision Grinding Machines
LIDKÖPING
LIDKÖPING
VTG1500/4000
Machine
VTG1500
VTG4000
Type
Internal /
External /
Hard
Turning
DG300/400/500/600/700/800
Workholding
Principle
Magnetic
Chucking
Work Piece Dimension
ID
OD
min Ø 440
max Ø 1 450
min Ø 500
max Ø 1 500
min Ø 1 000
max Ø 3 800
min Ø 1 300
max Ø 4 000
Machine
Grinding Wheel
DG300
300 mm
ø 5-160
max 80
DG400
500 mm
ø 15-240
max 120
DG500
500 mm
ø 20-250
max 80
DG600
600 mm
ø 160-440
max 160
DG700
700 mm
ø 190-610
max 250
DG800
800 mm
ø 300-820
max 250
Slewing
Bearing
Windmill
Hard turning/
grinding
UVA
Type
Workholding
Inner Ring DGBB
Bearing - Face
Inner RIng DGBB
Bearing - Face
Outer Ring DGBB
Bearing - Face
Joints
Bearing - Face
SUU240/320/600
Principle
Work Piece Dimension
OD
Machine
Type
Workholding
Principle
Work Piece Dimension
Width
SUU240
UVAi
Internal
Chucking
max ø 86
max 250
UVAiTwin
Internal
Chucking
max ø 40
max 150
SUU320
UVAe
External
Chucking/
between centers
max ø 80
max 150
SUU600
UVAie
External/
internal
Chucking
max ø 40
max 150
Internal/
External/
Flange
(Rib Face)
Shoe
centerless/
Centric
chucking
Gear Part
Automotive Internal
Valve Lifter
Nozzle Grinding
14 | High Precision Grinding
OD
LIDKÖPING
Nomyline Internal/Face/External
Machine
Work Piece Dimension
ID
Inner Ring SRB
Windmill, Radar Station
Hard turning/grinding
External or Internal
Inner Ring
Gearbox,
Large Crane
Hard turning/
grinding
External or
Internal
Principle
OD
Width
ø 20-240
max 120
ø 100- 320
max 140
ø 150-600
max 200
Inner Ring Spindle
Bearing - External
Pump Head
Pump Body
Outer Ring Flange Inner Ring Truck HUB
Bearing - Internal
Bearing - External or
Internal or Rib Face
www.kmtgrinding.com
LIDKÖPING
LIDKÖPING
CL630/660
SUUC240/600/800
Work Piece
OD
Wheel Width
Wheel Ø
(WORN)
Machine
CL630
≤125
300 (400)
610/630 (380)
SUUC240
CL630
≤250
600 (700)
610/630 (380)
Machine
Principle
SUUC600
Type
External/
Internal/
Flange
(Rib Face)
Workholding
Principle
Shoe
centerless
SUUC800
Camshaft
Automotive External
Outer Ring
Bearing External
Work Piece Dimension
ID/OD
Width
ID min ø 80
OD max ø 250
max 130
ID min ø 130
OD max ø 600
max 250
ID min ø 370
OD max ø 820
max 250
Joints
Automotive External
Outer Ring Truck HUB
Bearing - External and internal
Outer Ring
Railway
Bearing - External
and internal
Inner Ring SRB
Bearing - External
and Internal
LIDKÖPING/UVA
NANO ID
Machine
Nano
Type
Workholding
Internal
Shoe centerless/Centric
Principle
Work Piece Dimension
OD
Width
min ø 8
max ø 72
max 64
KMT Lidköping
KMT Leonberg
KMT Boston
KMT Bromma, UVA
KMT Beijing
KMT pmi
www.kmtgrinding.com
Bearing Cup
Automotive Internal
Outer Ring DGBB
Bearing - Internal
Inner Ring HUB
Automotive Internal
Inner Ring DGBB
Automotive Internal
High Precision Grinding | 15
”We offer a number
of upgrade packages,
which help the customer
to further extend his
investment.”
Björn Almgren, Manager Aftermarket
16 | High Precision Grinding
www.kmtgrinding.com
The Aftermarket offer supports
the customer and extends the
machine’s lifecycle
KMT Precision Grinding offers a large number of products and services,
which provides the customer with a maximum use of his investments.
Training, upgrades and optimization present one part of the services provided.
KMT‘s machines have a very long
technical durability – this fact has been
known for a long time. That is, among
other things, connected to the
hydrostatic slides eliminating a
mechanic contact. As the customers’
needs change faster than the sustainability of the machines, the aftermarket department at KMT offers upgrade
packages, which extend the machines’
lifecycle.
Upgrading packages
Björn Almgren, Manager Aftermarket at
KMT Bromma, indicates what the
company offers:
– We offer a number of upgrade
packages, which help the customer to
further extend his investment. For
example, the chuck’s belt transmission
can be replaced by a direct drive. That
improves the grinding result and
reduces rejection.
– An upgrade of the Uvatronic
control system to the actual version 3
contains the exchange of the software,
data, bus, amplifier and engines. The
customer gains performance improvement and better handling.
www.kmtgrinding.com
– Furthermore, we offer optimization
of the processes and machine control
software, which lead to shorter cycle
times and improved quality.
KMT also offers different trainings for
machine operators, process technicians
and service staff. The training includes
theory and practical work and offers
the customers understanding and
knowledge, which is necessary to use
the machines in the best possible way.
Service and spare parts are, naturally,
part of the offer just as the online
support, during which the KMT
engineers are connected through
internet with the machine and create a
problem analysis.
To make a long story short: an
investment in the upgrade of the
control system, pneumatic, hydraulic or
mechanics increases the capacity and is
quickly worth its money. n
KMT also offers
different trainings for
machine operators,
process technicians
and service staff.
High Precision Grinding | 17
UVA
Nomyline
big at small
details
18 | High Precision Grinding
www.kmtgrinding.com
In Bromma, outside Stockholm, you can find the master of high precision
and small measurements.This is the place, where the grinding machines
are developed and which, among other things, produce the very accurate
parts controlling fuel injection in diesel engines.
Diesel engines in cars, trucks, busses or
any other vehicles, is a very sophisticated construction, not least when it
comes to fuel injection management.
The system is based on data controlled
injection parts, which inject upto seven
times per rate. The fuel forms different
layers in the cylinder it ignites and the
fuel explodes step-by-step.
Extreme precision
Such a sophisticated combustion
process requires high precision in every
operation mode. The injection quantity
must be accurate, in quantity as well
as in structure.
In order to reach the correct result,
the injector that distributes the fuel in
the cylinder crucial. Go for any diesel
engine in a bus, truck, car or any other
vehicle – the chance is rather high that
the inner part of the injector and the
needle controlling the injection have
been grinded by machines produced
by KMT. The requirements are very
high and the tolerances are measured
in thousandth millimeters.
The trademark of these machines is
UVA Nomyline, a serie of modular built
products, which were launched in
2003 and are known as high qualityproducts.
Four well-tried base machines
The trademark of the four machines is
UVA Nomyline, a serie of modular built
www.kmtgrinding.com
procucts which were introduced 2003.
• UVAi for internal grinding
• UVAe for external grinding
• UVAie for both internal and
external grinding
• UVAi Twin offers two parallel
grinding processes.
Sold to eleven countries
300 Nomyline machines were sold to
eleven countries since their launch in
2003.
The machines are modulary built
and can be adjusted to the customer
needs, e.g. regarding the handling for
in-, and outfeed of the details.
The machines can be configured to
upto five internal grinding operations
or to a combination of internal and rib
face grinding. Furthermore, there is a
UVAi Index, where an established
technology have been integrated into
a Nomyline machine.
UVA Nomyline is a
series of modular built
machines, which stand
for high quality.
>>>
High Precision Grinding | 19
www.meister-abrasives.com
The challenge
Efficient, assured production
Bosch Rexroth
The right solution for every technology
Innovative mechanical designs!
Rexroth is the world’s leading supplier of systems, components and
services for industrial automation and mobile hydraulics. A complete
product range, solid expertise and good service make us a reliable
full-service supplier. We always select the best technology and the
most effective solution for each individual application.
Bosch Rexroth. The Drive & Control Company
www.boschrexroth.se
sharp by nature
Pen Cutting Tools has been a supplier of
precision tooling to KMT for over fifteen years.
With in this time we have developed alongside KMT and with the support from them as a key customer now produce
a wide range of tools covering all aspects of grinding. Throughout the 50 years we have been in business both KMT and
SKF have become our key customers as we supply 80% of our tools into the bearing and grinding machine tool industry.
We manufacture 100% in our purpose built factory in the UK and following the lead of our customers demands are
at the forefront of tooling manufacture and design. Working close with our customers we strive to not only supply but
improve the tooling performance. From precision hard turning and milling to grinding, wire erosion in special steels,
carbide and PCD diamond we continue to develop with our customers.
Pen Cutting Tools Ltd. | Bold Street, Attercliffe | Sheffield S9 2LR | Tel: +44 (0)114 243 0055 | Fax: +44 (0)114 243 0066 | www.pencuttingtools.co.uk
>>> – We wanted to develop a
Nomyline offering the customer a
chuck, which can be indexed, says
Per-Erik Pettersson, sales representative
and responsible for the construction of
the UVAi index.
The solution implies that the
machine is able to perform upto four
grinding sequences by that the chuck
with the detail is indexing to two
different positions and these two
details are being grinded parallely
without a rechucking. For example, a
nozzle for diesel can be grinded in one
pass, including grinding of holes, lifts
and a final face grinding.
That solution was available in the
older machine types UVA 88, which
were sold to e.g. China and India; but
these markets have expressed interest
in indexed solutions for Nomyline.
Now, here it is.
We close co-operation
– One of the reasons for our success is
our way of how we co-operate with
our customers, says Urban Myrefors,
Plant Manager. We do not have a
traditional supplier-customer
relationship. We cooperate closely,
Urban Myrefors, Plant Manager at KMT Bromma,
stresses the meaning of a close cooperation with
the customers.
KMT staff have a high presence
at the customer, which leads to
continuous communication
and troubleshooting.
Cooperation with Bosch
An example on such cooperation is
found in Bromma. A machine type
UVA U88 has been rebuilt to the new
standard. The project leader of Bosch,
Torsten Vogel, is visiting Bromma in
order to perform several tests required
for the final approval. The machine will
then be shipped to Nashik, India, to
the plant of Bosch. As soon as the
machine has arrived in India, Torsten
Vogel will be on-site and perform the
final approval tests.
– Our cooperation is very good, says
Torsten Vogel. There would have been
other manufacturers to do the rebuild
of our machines, but it seemed just
natural to contact KMT, who is the
original manufacturer of the machine.
KMT has all the knowledge and
competences we prefer. Our communication is very open and good. When it
all comes together, it’s a matter of the
people cooperating. n
Project Manager
Torsten Vogel of Bosch
and Bengt Sandelowsky, Production Manager at KMT Bromma,
are very happy with
the cooperation of the
two companies.
Taking ideas to working solutions!
Special purpose machinery, production
equipment, qualified design resources.
www.nederman.com
www.kmtgrinding.com
Contact CEO: Tomas Fridh
|
Tfn. +46 (0)510 42 58 11, +46 (0)708 72 72 41 | www.dma.se
High Precision Grinding | 21
SlipNaxos
years ofhistoria
company
SlipNaxosshows
har en100
100-årig
history
withanställda
185 employees
andomsättning
a turnover
med 185
och en
of
in 2010.
2010.
på320
320MSEK
mkr år
Vår activity
verksamhet
består
av utveckling,
Our
consists
in development,
production
of grinding
wheels
produktionand
ochsales
försäljning
av slipto
worldwide
industries.
skivor
till industrin
över hela världen.
Företaget
ingår
i den
schweiziska
The
company
is part
of the
Swiss group
koncernen
Winterthur
Technology
Winterthur Technology Group, which is owned
Group
som
ägsthan
av 3M
med
över
by
3M with
more
7500
employees
within
Research and
and
7500 personer
inomDevelopment
Forskning och
a
total of approx.
80.000
Utveckling
och runt
80 employees.
000 anställda.
Största
delen
vårproduction
produktion
The
largest
part av
of our
consists
består
av
kundanpassade
slipskivor
of custom-made grinding wheels,
which
som är
utvecklade
specifik
have
been
developedför
to en
serve
a specific
slipoperation
ellerormaskin.
grinding
operation
machine.Med
Thedet
company’s
large resources
stora företagets
resurser and
och flexibility
det lilla
enables
us
to
provide
our
customers
företagets flexibilitet vill vi ge vårawith
the
best bästa
possible
serviceservice
and theoch
lowest
kunder
möjliga
possible
total costs.
lägsta möjliga
totalkostnad.
At GMN, clocks aren’t ticking faster than elsewhere
in the world.
Considering the fact however, that we develop high frequency spindles
reaching highest rpm per second, it might be assumed that our seconds
last longer than usual.
By now, we are developing materials and technologies that enable even
higher frequencies. And maybe one day, we can even steer the rotating
speed of the sweep hand.
GMN Paul Müller Industrie GmbH & Co. KG
Äußere Bayreuther Str. 230 · D-90411 Nürnberg
Phone: +49 911-5691-0 · vertrieb.spi@gmn.de
www.gmn.de
KMT’s Centerless machines stand for
high productivity – year after year
– Continuous improvement of our Centerless machines
means ninety years of experience in the machines, says
Otto Jernström, sales manager Machines, with pride.
Otto Jernström sells
customized solutions.
The Mechanic Workshop Lidköping
delivered already in 1922 their first
grinding machine build according to
the Centerless principle, which
presented one of the first ones of that
type in Sweden.
Until to today, KMT has delivered
between 7000 and 8000 machines of
that type. Machines, which stand for
long lasting, smooth operation. Otto
Jerström says:
– Lately we have experienced that
old customers come back to us after
trying other machine suppliers. Our
competitors definitely show the same
initial values as we do.
But machines made by KMT keep
that characteristic for years and years.
Hardly any cleaning after 30 years
– We recently got a grinding machine,
which was used to grind bars in a steel
mill, under heavy conditions for the
past 30 years. The machine had to be
cleaned, the mechanical parts, though,
worked without any problems!
That is one of the reasons, why
machines made by KMT are so
attractive to the market – regardless
whether new or secondhand ones.
The basic construction of the
machine types CL630 and CL660 is
www.kmtgrinding.com
sophisticated as well as reliable. Just as
the other KMT products, for which
solutions are applied based on
hydrostatics minimizing friction and,
consequently, eliminating wear-andtear of the respective parts.
The customer mainly use the
machines to grind different components
for the car industry. A 4-cylinder car
engine presents approx. 120 movable
parts and more than half of those
parts have been grinded according to
the Centerless principle.
The construction of the Centerless
machines is aligned to grind different
types of axes. This might include
grinding of bearing position of a
camshaft for power steering, universal
joints, or piston pins.
If you drive a Volvo, Saab, Volks­
wagen, Ford, BMW or Mercedes – just
to mention some of the brands – you
will find components, which were
grinded by KMT machines, in the
engine, as the sub-suppliers mostly use
established KMT machines.
Extreme high performance machines
Centerless Centerless machines are
extreme high performance machines.
The axes, pipes as well as the rings of
the ball bearings are grinded, which
leads to a very high throughput speed
of several meters per minute. One
single CL machine is able to supply
single parts up to six internal grinding
machines.
– Our production development is
subject to adjustment of the techno
ogy, processes and software (PLC/NC).
Today, we often have “fly to wire”
machine types, the control becomes
more and more intelligent, says Otto
Jernström. We do our best to improve
our products each year. In 1999, we
shipped two machines to Volkswagen
Argentina and can now ship another
two ones. The customer has developed
his own system and process through
out the past years and we adjust the
new delivery to the customer’s needs.
The machine is not only a machine,
but is part of the system, e.g. through
toolings, peripherals, feeding unit and
measurement equipment.
We are not only talking cars.
Bearing rings and rollers for a large
number of different bearing types,
piston for hydraulic cylinders with
extremly high demands on roundness
and diameter toolerances, steel bars
and axes for electric motors. Diameters
from 1 up to 275 mm – grinded with
KMT Centerless machines. n
High Precision Grinding | 23
YIT in Sweden
Together we can do it
YIT in Sweden is one of the biggest and leading
company in automation, electrical services, power maintenance and total technical solutions.
After several years
of experience is our
base of competence
wide and solid.
Robot based automation solutions
for the manufacturing industry
We also offer solutions for Fire alarm-, Burglar
alarm-, Data/Telecom-, Safety- and Access
Controlsystems.
YIT Sverige AB
Teknik Kvänum
Torsplan 1, 535 30 Kvänum
Telefon: +46 512 79 76 00
18
Together we can do it.
www.yit.se
Turn-key deliveries with full responsibility
from idea to production start
Together we
make industry
more efficient
From single robot installations to
complete production systems
As cooperation partner
of KMT, TOOLS supplies
overall solutions for
products and services for
process, maintenance,
repair and operations
– we call that MRO
More than 800 robot applications
on the market since 1995
www.tools.se
Artech Automation AB Laxå - Sweden
a company within the Artech Group”
KMT Precision Grinding has been part of the Lidköping
industry through name changes, economic fluctuations
and technical development.
KMT Lidköping
focuses on the future
Jörgen Möller is Plant Manager at KMT
Lidköping. He describes the intense
product development of the past years
as follows:
– Until ten years ago, our machines
were able to grind parts in sizes of upto
150 mm. Rings for ball and roller
bearings are often details by which the
needs of our customers have changed
and due to the fact that bearings are
used in new products.
– Therefore, the development made
huge steps and new machines have
been developed during the past years.
Those machines are able to grind round
parts upto a diameter of four millimeters.
That means that KMT’s machine rings
for very large ball bearings, e.g. used in
wind power stations, trucks and trains,
can be grinded. Jörgen thinks that the
wind power industry will strongly grow
and that China will modernize its railway
system – the need of machines
producing large bearings will increase.
Worldwide customers
KMT Lidköping has customers all over
the world and mainly in Germany,
France, Sweden, Italy, Spain, Brasil,
Argentina, Mexico, USA, China and
India. The sales department has been
focusing on China and India for the
past years. KMT Lidköping constructs
and installs its machines in Lidköping.
– This means that our field of activity
is deep as well as wide, says Jörgen. Our
staff is often involved in the whole
project chain, starting with tender
preparation followed by the delivery and
ending at installation on-site.
Rejuvenation of the staff
KMT Lidköping needs well trained staff
being skilled in machine and electrotechnology, meaning within the
construction as well as engineering.
95% of the company’s production is
being exported and, therefore,
language skills are important as well as
feeling comfortable within an
international environment.
www.kmtgrinding.com
– We will have to rejuvenate our staff
within the following years, as many of
our employees are retiring, states Jörgen
Möller.
– Our field of activity is motivating as
one is involved in numerous project
stages and customer contacts. That
creates a nice working atmosphere and
high engagement within the company.
Unique competence
The machines are custom-made as
configuration may vary. KMT does not
have any product lines, all work
independently and in their own
responsibility.
KMT experienced, just as the whole
industry, many tuff years but Jörgen
Möller is optimistic in regard to the
future.
– Our company shows a long history
of competent and proud employees,
who are willing to work. Originally, we
were technical-oriented, but we are
within a sound conversion phase
towards a business oriented company
with a unique technological expertise. n
Jörgen Möller looks
optimistic into the
future.
High Precision Grinding | 25
Priyank and his staff extend
the lifetime of KMT machines
No one knows the durability of a machine made by KMT Precision Grinding. The
KMT machines produced under the brand names LIDKÖPING and UVA are in some
parts indestructible. But even such machines become older and that is when KMT
can offer a rebuild and essentially extend the durability of the machine.
A large part of those measures were re-located to KMT’s plant in Gurgaon,
India, three miles south-west of New Delhi.
Photo: KMT India
Priyank Garg is manager of a young Indian
team.
Project manager Anders Karlsson says:
– It all started in 2006 as a main­
tenance program for one of our largest
customer, who has a considerable
activity on the Asian market. But all of
our customers can profit from our
rebuilding services.
– A rebuild may be done in two
ways, says Anders Karlsson. We have a
“light” version, which is rebuilt on-site
at the customer and which consists of
replacement of the electrical control
system with the electrical cabinet,
push-buttons and wiring. The machines
are functioning, most of the times,
well in a mechanical parts, thanks to
the hydrostatic technology, which
eliminates friction at some parts. The
electrical components do have a shorter
durability, not least due to it being
difficult to find spare parts for components being older than ten years.
– Another alternative is the so-called
”full rebuild”, which includes demounting or repair work of and on mechanic
parts, re-painting of the machine and
giving it an impression of looking new.
A full rebuild is performed on-site KMT.
All machines located in Asia, are
also rebuilt by KMT staff in India. The
machines from other parts of the world
are rebuilt in Lidköping, the responsibility, though, is always at India.
In India since 2006
KMT started its activity in India in 2006
and was planning 25 rebuilds per year.
After some start up difficulties
following the establishment, there are
now 30-40 rebuilds per year and
inquiries are even exceeding that
number. In order to meet with the
increasing number of inquiries, the
company relocated at the beginning of
2011 to Gurgaon. Priyank Garg is the
General Manager KMT Production
Machinery India.
– Fifteen employees are working
here, says Priyank Garg on the phone.
It is a young team and the average age
is 25–30 years. We have been moving
to new locations lately and have now
an area of approx. 1200 m2 available.
Our equipment is complete and
consisting of compressors, cooling
system, hydraulics and traverses. We
do have our own generator, which is
needed in case of power failure.
The machines are running on 100
kilowatt, which the net is unable to
produce.
The first international project was a
light rebuild at a customer in Bulgaria
in May 2011 and during which Priyank
was personally present prior tobecome
the company’s manager. In the mean­-
Custom tooling
in tungsten carbide and PCD
+46 19 611 96 90
www.robustus.se
26 | High Precision Grinding
www.kmtgrinding.com
Photo: KMT India
Above: KMT’s staff
and the new location
in Gurgaon, India.
To th left: A SGB
before and after a
rebuild.
time, the plant has performed a
complete rebuild of a machine for a
customer in China and an order has
been received for another three
rebuilds.
Several foreign projects
The number of foreign project is
increasing and orders are expected
from Malaysia and Brasil. Many
employees have never been abroad
before and Priyank accepts the positive
challenge.
– Our competence is high and we
are continuously building on that fact,
says Priyank Garg. One part of our
staff is trained in Lidköping, others get
an on-the-job-training here in Gurgaon
and additional training is performed
through Swedish technicians visiting.
We are increasing the number of our
staff and assume to have 20 employees by the end of 2011.
Anders Karlsson summarizes:
– To be close to our customers and
offer cost-effective service – this was
the intention when starting the activity
in India The development shows that it
was the right thing to do. n
Transmissions for all needs. Standard or special.
Contact us and we will solve your transmission needs.
Gear wheels • Worm wheels • Gear racks • Chains • Sprockets • Belts
Pulleys • Clutches • Sintered, turned and/or milled details
Vanlid Transmission AB | Ringugnsgatan 8, SE-216 16 Malmö
Phone +46 (0)40 36 91 50 | info@vanlid.se | www.vanlid.se
www.kmtgrinding.com
High Precision Grinding | 27
E20001-F610-P610-X-7600
With SINUMERIK, you’re
on the road to success
Increase your productivity during large-part production with Solutions for Powertrain
In the automotive world, increased
productivity puts you in the fast lane.
Our open and flexible SINUMERIK 840D sl
CNC is the perfect choice for automotive
part production. Thanks to its compact
and modular design, the SINUMERIK
840D sl can be embedded into any
manufacturing configuration.
As part of our automation concept
called “Solutions for Powertrain”,
Siemens offers you not only an
integrated control solution, but you
also benefit from comprehensive
project management and services
throughout the entire lifecycle of
your machines.
siemens.com / sinumerik