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Shareholders of
Dannemora mines had declined since the late 19th century through closures and mergers. In 1937 the four remaining owners (Fagersta Bruk, Iggesunds Bruk, Hargs Bruk and Stora Kopparbergs Berglag) formed AB Dannemora Mines. In 1974 Stora Kopparberg became the sole owner of the Dannemora
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The current owner is
Dannemora Mineral AB, which was listed May 25, 2007. The initial stock placement was heavily oversubscribed. In 2008, preparations began to resume mining of iron ore as well as other more precious metals. The mine was emptied of water and a new sorting mill and loading terminal
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in 1878. During the 20th century, production was 50,000 tonnes, but a strike in 1927 stopped operations entirely. Only in 1935 was it resumed. 1955 a new facility, with sorting plant and concentrator was finished and the annual production reached 600,000 tons. During the latter part of the 1970s,
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Around 1700 there were about sixty workers at
Dannemora residents of the neighbourhoods around the mine. The number of workers who obtained their support from the mine is likely to be several hundred. In each mine large quantities of wood would be used, a method not abandoned until the 1730s. The
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Joachim Piper renewed the mining privileges at
Dannemora in 1532 and devoted substantial resources to the mine, mainly producing iron but also other minerals. the ownership structure changed in 1545, and a dozen wealthy individuals entered as the owners, so that a number of Germans and even King
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During the century 1770–1870, production was between 15,000 and 20,000 tonnes. In the 1870s, it rose to 40,000 tonnes and exports of pig iron from the Österby ironworks became significant. In order to facilitate shipments of ore
Dannemora Hargs Railway
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Under 17th century, Dannemora iron had an uncontestedly high status among
Swedish iron localities, especially in England where it was used in the steel raw material for tools, weapons, springs and other special purposes. A large part went to
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took part. The
Germans were most interested in the export of pig iron but the king persuaded them to start production of wrought iron. It lasted only a few years and following a related bankruptcy, the king took over the operation fully.
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The main access ramp is being extended down to the 350 m level, and a new ore elevator is being put in. The estimated ore reserves have been revised up to 35 million tonnes, sufficient for at least 14 years production.
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Throughout the mine's history, it had problems with water being situated by a lake. A pile-dam was built during the 17th century, and water- and wind-powered pumps were used. In 1728, at the initiative of
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mine. Only four years later, during the crisis that hit the
Swedish steel industry in the late 1970s, however, the state-owned SSAB was forced to take over the mine.
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Svante
Lindqvist: The impact of the Introduction of Steam Engine Technology on the Society of Dannemora Mines (in Svensson, Nils Eric, Strandh, Sigvard:
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K. C. Barraclough, 'Swedish iron and
Sheffield steel' History of Technology 12 (1990), 1-39 - originally published in Swedish in A Attman et al.,
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output decreased but still amounted to about one million tonnes of crude ore, of which the bulk was exported.
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reason for this was partly because gunpowder would be more expensive than wood, but also for danger's sake.
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was held on 13 June 2012. The company went bankrupt in 2015 due to a decrease in iron price by 70 %.
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in 1992. It may have been open since the 13th century, but the first documentary reference was in 1481.
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was built. The railroad to the port at Hargshamn was refurbished. An opening ceremony featuring H M
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content of the iron ore. This made it the best material for conversion to
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Historiskt sammandrag om svenska bergverkens uppkomst och utveckling
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Tekniska Museet Symposium on the History of Technology
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mines in Sweden. The mine was closed by its owners
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111:The new pithead gear at Dannemora, built in 1952
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22:The open pit around 1780–1800. Pen drawing by
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84:). Their products were particularly pure
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376:Gruvornas, hyttornas och hamnarnas folk
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366:This article is based mainly on the
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235:. Kulturbilder. 26 February 2014
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304:"Dannemora–Hargs Järnväg (DHJ)"
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127:Site office at Dannemora mines
119:Mårten Triewald's engine house
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410:Dannemora Mineral AB website
233:"Dannemora gruvor 1481-1992"
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172:Newcomen atmospheric engine
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397:Forsmark och vallonjärnet
368:Swedish Knowledge article
306:. stiglundin.se/jarnvag
180:Dannemora–Hargs Järnväg
621:Former mines in Sweden
328:. Dannemora Mineral AB
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96:, the main variety of
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592:60.20278°N 17.86250°E
445:Mineral resources in
135:Dannemora mining area
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616:Iron mines in Sweden
283:. Nordisk familjebok
261:. Nordisk familjebok
202:King Carl XVI Gustaf
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326:"Dannemora Gruvor"
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471:Kaunisvaara
354:14 December
257:Vallonsmide
147:Gustav Vasa
78:Österbybruk
68:) using a
66:Vallonsmide
610:Categories
583:17°51′45″E
580:60°12′10″N
563:Zinkgruvan
558:Garpenberg
535:Molybdenum
491:Malmberget
481:Ruoutevare
332:1 December
310:1 December
287:1 December
265:1 December
239:1 December
212:References
82:Lövstabruk
496:Mertainen
461:Dannemora
184:Hargshamn
156:Sheffield
90:manganese
39:Dannemora
100:made in
47:iron ore
626:Uppland
140:History
60:by the
526:Ballek
514:Copper
476:Kiruna
466:Kallak
447:Sweden
385:(1879)
378:(1951)
542:Munka
521:Aitik
98:steel
37:) at
551:Zinc
454:Iron
356:2021
334:2018
312:2018
289:2018
267:2018
241:2018
86:iron
80:and
72:and
51:SSAB
29:The
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