Karlsson Spools
Encyclopedia
Karlsson Spools AB is a Swedish-based manufacturer of spools for hydraulic valves that are used in hydraulic machinery
. More specifically, the spools are part of directional control valve
s where the spool slides inside a housing to route hydraulic fluid
to mechanical components. Some examples of equipment that use hydraulic machinery are: Excavators, forklifts and machinery used for logging
.
The company manufactures valve spools in sizes ranging between 25-400 mm (1”-16”) length and diameters between 5-50 mm (.120”-2”). Tolerances of + 0.00075 mm (.000030”) can be obtained. The production line includes a range of steps including CNC turning
, milling machines, coining
, deburring, induction heat treatment
and plating
. However the tolerances are achieved mainly by means of high-precision grinding machine
s.
Karlsson Spools produces approximately 4 million spools per year to customers in Europe
, the USA, Asia
and South America
. The company is located in Sala, Sweden
and Kunshan
, China
with a distribution centre in Indiana
, USA.
The company was established in 1955, as “Åke Karlsson Mekaniska AB”. Since 1988 is belongs to the Grimaldi Industri
Group.
http://www.top500.de/details/664/karlsson_spools_ab_sweden.php
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Hydraulic machinery
Hydraulic machines are machinery and tools that use liquid fluid power to do simple work. Heavy equipment is a common example.In this type of machine, hydraulic fluid is transmitted throughout the machine to various hydraulic motors and hydraulic cylinders and which becomes pressurised according to...
. More specifically, the spools are part of directional control valve
Directional control valve
Directional control valves are one of the most fundamental parts in hydraulic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a piston inside a cylinder which is mechanically or electrically controlled...
s where the spool slides inside a housing to route hydraulic fluid
Hydraulic fluid
Hydraulic fluids, also called hydraulic liquids, are the medium by which power is transferred in hydraulic machinery. Common hydraulic fluids are based on mineral oil or water...
to mechanical components. Some examples of equipment that use hydraulic machinery are: Excavators, forklifts and machinery used for logging
Logging
Logging is the cutting, skidding, on-site processing, and loading of trees or logs onto trucks.In forestry, the term logging is sometimes used in a narrow sense concerning the logistics of moving wood from the stump to somewhere outside the forest, usually a sawmill or a lumber yard...
.
The company manufactures valve spools in sizes ranging between 25-400 mm (1”-16”) length and diameters between 5-50 mm (.120”-2”). Tolerances of + 0.00075 mm (.000030”) can be obtained. The production line includes a range of steps including CNC turning
Turning
Turning is the process whereby a single point cutting tool is parallel to the surface. It can be done manually, in a traditional form of lathe, which frequently requires continuous supervision by the operator, or by using a computer controlled and automated lathe which does not. This type of...
, milling machines, coining
Coining
Coining may refer to:*Coining , metalworking process*Coining , production of money*Counterfeiting of coins*The creation of a neologism...
, deburring, induction heat treatment
Heat treatment
Heat treating is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. The most common application is metallurgical. Heat treatments are also used in the manufacture of many other materials, such as glass...
and plating
Plating
Plating is a surface covering in which a metal is deposited on a conductive surface. Plating has been done for hundreds of years, but it is also critical for modern technology...
. However the tolerances are achieved mainly by means of high-precision grinding machine
Grinding machine
A grinding machine, often shortened to grinder, is a machine tool used for grinding, which is a type of machining using an abrasive wheel as the cutting tool...
s.
Karlsson Spools produces approximately 4 million spools per year to customers in Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
, the USA, Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
and South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...
. The company is located in Sala, Sweden
Sala, Sweden
Sala is a locality and the seat of Sala Municipality in Västmanland County, Sweden with 12,059 inhabitants in 2005.- History :The small town is best known for its historical silver mine, which dates back to at least Medieval times, and was in operation until 1908...
and Kunshan
Kunshan
Kunshan is a satellite city in the greater Suzhou region. Administratively, it is a county-level city within the prefecture-level city of Suzhou. It is located in southeastearn part of Jiangsu Province, China, adjacent to Jiangsu's border with the Shanghai Municipality.The total area of Kunshan...
, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
with a distribution centre in Indiana
Indiana
Indiana is a US state, admitted to the United States as the 19th on December 11, 1816. It is located in the Midwestern United States and Great Lakes Region. With 6,483,802 residents, the state is ranked 15th in population and 16th in population density. Indiana is ranked 38th in land area and is...
, USA.
The company was established in 1955, as “Åke Karlsson Mekaniska AB”. Since 1988 is belongs to the Grimaldi Industri
Grimaldi Industri
Grimaldi Industri AB of Stockholm, Sweden, is a company with many holdings, including:* Alpha Sweden* Cycleuropa Group - The company manufactures such brands as: Bianchi, Crescent, DBS, Everton, Gitane, Kildemoes, Legnano, Micmo, Monark, Puch, Spectra,* Contento* Grimaldis Mekaniska Verkstad*...
Group.
External links
http://www.top500.de/details/664/karlsson_spools_ab_sweden.php
http://www.72hourrace.cn/en/partnersInfomation.html
http://www.nfpa.com/AboutNFPA/member_list.asp?pid=22<r=K