1

The world’s leading manufacturer of electronic ignition systems

2

SEM is an advanced production company offering

technically innovative and cost-effective production

solutions from its plants in Sweden and China.

3

The technology of tomorrow being developed today

SEM is the OPCON Group’s technology centre for

ignition systems. We develop and produce advanced

systems for combustion engines along with solenoids,

heat exchangers and sensors for a wide range of ap-

plication areas.

Our market is global. Our customers include manufac-

turers of cars and heavy vehicles as well as producers of

handheld equipment such as chainsaws and trimmers.

SEM works in partnership with a number of the world’s

leading companies.

Our business is built on long tradition – much has hap-

pened since its founding in 1915. Steady product develop-

ment over almost a full century has resulted in the unique,

patented solutions that are used in many of our products.

Such solid experience also provides the stability and con-

tinuity our customers seek.

Today SEM is a highly-modern production operation that

offers technically-advanced and cost-effective production

solutions from its plants in Sweden and China. We are

certified in accordance with TS 16949 and ISO 14001, and

our work environment is certified under OHSAS 18001.

Injector statorsGas ignition systems

Small engine ignition systems

SensorsHeat exchangersSolenoidsAutomotive

ignition systems

4

Professional ignition systems for effective engines

Small engine ignition systems

SMALL ENGINE IGNITION SYSTEMS

comprise analogue and digital ignition sys-

tems for two- and four-stroke engines as well

as generators.

The ignition system is flexible and can easily be

customised to different applications. A number

of our products are used in tools such as chain-

saws, bush cutters and trimmers, where it fea-

tures functions like trip counters, communica-

tion and power to external devices as well as

boosted voltage during low speed sparks.

Our ignition systems are constantly being developed to

improve their functionality and sustainability along with

their environmental footprint. We are always on the look-

out for reliable and user friendly solutions that minimise

the environmental impact of our customers’ engines and

help them meet environmental legislation.

Our ignition systems are flexible and can with slight changes to functionality and geometry be

adapted to different applications.

The right ignition system gives the engine the properties needed to perform effectively. In close conjunction with

our customers, we develop professional, dependable systems with long-term reliability. We currently supply

analogue and digital ignition systems to a number of the world’s leading producers of handheld equipment.

5

6

Applikationsbild

7

Special ignition systems for alternative fuel engines

Gas ignition systems

ENVIRONMENTAL ISSUES HAVE HIGH PRIORITY

around the world. Technical solutions to minimise envi-

ronmental harm are making steady progress in most fields.

We also deliver ignition systems for stationary engines

that run on fuels such as natural gas and biogas. The en-

gines are used in applications such as electricity produc-

tion – a fast growing market.

The products are often used in applications where a high

level of uptime is expected.

Proprietary technology for monitoring and diagnostics

enables SEM to meet tough application requirements.

With the use of ion current sensing, using only the spark

plug as a sensor, we can provide a number of diagnostic

tools. This offers a low cost and robust solution because

no separate sensors have to be introduced. Examples of

functionality can be: Misfire detection, Pre-ignition and

Knock detection, Peak pressure position and also Spark

voltage measuring.

Growing environmental awareness in the major cities of the world means vehicles used in collective traffic are

more often using alternative fuel engines. As a result, one of SEM’s fastest growing product areas is ignition

systems for engines run on biogas and natural gas. We provide customised solutions for heavy vehicles and

stationary applications.

One of SEM’s fastest growing product areas is

ignition systems for engines that run on biogas and natural gas.

SEM has for many years delivered ignition systems for

natural gas vehicles in the US where authorities were early

in setting tough demands for emission levels.

8

Practical application pro-vides invaluable experience

SEM’s car ignition system has been on the market for over 20 years. This long practical experience has given us

invaluable knowledge that we are happy to share.

Automotive ignition systems

SEM IS ONE OF THE DEVELOPERS behind the ignition

system for SAAB Automobile, one of the most advanced

systems on the market with unique functionality.

The system has functions for effective sparking as well as

individual measurement of knocking and poor combustion

using ion sensing in every cylinder.

The system has been on the market for over 20 years. Years

of practical experience and continuous development have

formed the base for the next generation of ignition systems.

We’re also collecting detailed information from ion sense

signals so we can improve emission levels and engine

performance.

9

Practical application pro-vides invaluable experience

10

11

Quality solenoids boost production economy

OUR EXTENSIVE EXPERIENCE from the automotive

sector helps us in our development of solenoids. We are

well aware of the specific requirements for end product

functionality, even in harsh application environments.

Solenoids from SEM are primarily used by manufac-

turers in the automotive and heavy vehicle industry, as

well as by engineering companies. In each of these ar-

eas we can offer quality solutions with excellent pro-

duction economy. Our range of products also includes

solenoid-based valves.

One of our key development areas is the production

of solenoids for automotive applications in our Chi-

nese plant.

The combination of Swedish engineering and Chinese production makes SEM solenoids an attractive alter-

native in numerous application areas. We work in close partnership with vehicle and engineering industries

throughout the world.

Solenoids

We are well aware of the specific requirements for end product function-

ality, even in demanding environments.

12

Right stators lessen the environ- mental impact of diesel engines

THE STATOR IS A PART of the injection system in a

diesel engine; a vital component that affects engine ef-

fect and environmental impact. High pressure and rap-

id response help lower emission levels and reduce the

amount of harmful particles such as NOx.

Our close working relationships with world leaders in

engine manufacture help keep us in tune with the latest

emission level regulations.

Our combined knowledge of mechanics and electromag-

netism means we can develop stators that meet market

requirements across the board.

As environmental legislation becomes stricter, technical solutions to reduce emissions are being refined. An im-

portant component affecting engine emission levels is the injector stator. Intensive development work, combined

with extensive knowledge in the electromagnetic field and ideal production facilities enable SEM to offer stators

to meet all requirements.

Injector stators

Our combined knowledge of mechanics and electromagnetism

means we can develop stators that meet market requirements

across the board.

13

Right stators lessen the environ- mental impact of diesel engines

14

15

Heat exchangersThe Laminova heat exchanger

Laminova heat exchangers are used as intercoolers in turbo

and supercharged petrol and diesel engines. Another applica-

tion is as oil coolers to control engine and transmission oil

temperatures, or for instance the temperature of the power

steering system.

Laminova oil coolers are 20% more efficient than the com-

petition due to the unique patented core design. The finned

exterior on the cooler core creates a larger surface area com-

pared to that of traditional “radiator” style coolers. The heat

exchangers offer both maximum heat transfer and low pres-

sure drop, something not before possible.

The Laminova heat exchangers are custom designed and we

cooperate closely with designers and OEM-manufacturers

world wide.

The small and flexible package is used for both cooling and

heating applications in many different motor vehicles.

Laminova heat exchangers provide outstanding engine and transmission oil temperature control in the most

severe conditions. From high performance racing cars to Paris-Dakar rally cars, you can rely on Laminova.

Laminova oil coolers are 20% more efficient than the

competition due to the unique patented core design.

16

THE SENSORS PRODUCT AREA has measurement sen-

sors based on both hall sensor and inductive technology.

Inductive sensors are easily adapted to various applica-

tions. They are fully contact-free and are highly accurate.

Potential application areas include clutch and brake wear

indicators, gear position indicators and measurement of

liquid levels and pressure.

SEM has been working with sensors for close to 30 years. We manufacture inductive and contact-free sensors

that are designed to work even in demanding environments.

Robust sensors for demanding environments

Sensors

17

Robust sensors for demanding environments

18

The history of Svenska Elektromagneter

Since it was founded in 1915, Svenska Elektromagneter –

SEM – has played an active role in Swedish industry.

The SEM factory in Åmål delivered the very first ignition

equipment to Thulinverken in Landskrona during World

War I. The equipment was installed in the plane Tummelisa,

which had its inaugural flight immediately following the

war. Reliability and quality were decisive factors behind the

purchase and Svenska Elektromagneter was at that time the

only company able to meet the demanding criteria.

SEM has retained its focus on electromagnetism and over

long periods the company’s knowledge and products have

been unique not only in Sweden but worldwide.

Today SEM is part of the Opcon Group which is listed

on Nasdaq OMX Stockholm. SEM is part of the Engine

Efficiency business area.

Precision and environmental concern

SEM’s original idea remains firm: We shall develop and

manufacture products that, in an energy-effective man-

ner, initiate, generate and transform power.

Requirements on performance and technical precision

have gradually been extended with environmental re-

quirements. Within the company there is an intensive,

ongoing process to develop technology that can make a

positive contribution to the environment.

SEM is certified in accordance with ISO/TS 16949 and

ISO 14001. Our work environment is certified in accord-

ance with OHSAS 18001.

Cooperation, professionalism and mutual respect

19

Production in Sweden and China

SEM now has modern industrial production facilities in

Åmål, Sweden and Suzhou, China. Our head office is in

Åmål, which is also home to our product development,

order management and quality control.

Every day we aim to improve the way we work so we can

give our customers the best possible service and value –

technically as well as commercially.

Professionalism and mutual respect are two of the corner-

stones in our daily work, the third is close cooperation with

our customers. These days as the path from idea to final prod-

uct gets shorter and shorter, it’s more important than ever to

collaborate and share our skills.

20

SEM AB | Box 30, SE-662 21 Åmål , Sweden | Phone +46 532 611 00 | info@sem.se | www.sem.se

PREF

EREN

S /

Foto

: fje

llman

.se

/ T

ryck

: am

alst

ryck

.se