Manufacturer catalog

Tampella

Tampella was a Finnish heavy-industry manufacturer based in Tampere whose defence work became one of the roots of Finland's heavy-weapons industry, from 1930s mortar production through postwar field-gun development and the 155 K 83 artillery line later carried into the Vammas and Patria lineage.

2 weapons

Tampella developed and manufactured Finnish heavy weapons before that work moved into the later Vammas and Patria industrial line. Patria's own history traces Finnish heavy-weapons roots to Tampella's mortar manufacturing in 1932, when the company began producing mortars for the Finnish Defence Forces and for export, and states that Tampella began manufacturing the 155 K 83 field gun in 1985.

The manufacturer's catalog connection is strongest in Finnish mortar and gun-howitzer designs. Patria describes Tampella as the predecessor behind Finland's heavy-weapons tradition, while specialist references and connected catalog records tie the company to both the 155 K 83 / Tampella M-83 field-gun family and the 120 Krh/40 heavy-mortar family that Sweden knew as the 12 cm granatkastare m/41 and later M/41D.

field artillerymortar systemsheavy weapon developmentFinnish defence industry

Notable Systems

155mm Tampella M-83, 155 mm towed gun-howitzer, Artillery

155mm Tampella M-83

155 mm towed gun-howitzer

WeaponSystems.net identifies Tampella as developer and producer of the M-83, the Finnish 155 K 83 towed howitzer.

Sources: WeaponSystems.net Tampella M-83
M/41D 120 mm mortar, 120 mm towed heavy mortar, Artillery

M/41D 120 mm mortar

120 mm towed heavy mortar

ArmyInform describes the M/41D as the 120 Krh/40 family, a Tampella-produced Finnish 120 mm mortar accepted in 1940 and exported to Sweden before later Swedish licensed production.

Sources: ArmyInform M/41D profile, Wikimedia Commons 120 Krh 40 category

Manufacturer History

  1. Tampella weapons department originates in mortar work

    Patria historical material traces Finnish heavy-weapons roots to Tampella's mortar manufacturing in 1932; a Patria magazine article adds that Tampella produced the first Finnish Defence Forces mortar prototype that year and that the 1933 order for 81 mm mortars is treated as the origin of Tampella's weapons department.

    Sources: Patria legacy history, Patria from cannons to computers, Patria Vammas weapon systems brochure

  2. 120 Krh/40 accepted into Finnish service

    ArmyInform describes the M/41D as the 120 Krh/40 family, says first prototypes were completed in 1935, and reports that the Finnish Tampella-produced 120 mm mortar was accepted into service in 1940.

    Sources: ArmyInform M/41D profile, Wikimedia Commons 120 Krh 40 category

  3. Tampella M-83 production

    Patria states that Tampella began manufacturing the 155 K 83 field gun in 1985, while WeaponSystems.net identifies it as the Tampella M-83 / Finnish 155 K 83.

    Sources: Patria legacy history, WeaponSystems.net Tampella M-83

  4. Defence division merged with Patria Vammas lineage

    A Patria Vammas weapon-systems brochure states that Patria Vammas Oy and Tampella Oy's Defence Division were merged in 1991.

    Sources: Patria Vammas weapon systems brochure

Website links
Patria historical articleWeaponSystems.net Tampella M-83ArmyInform M/41D profileWikimedia Commons Granatkastare m/41 image

Tampella is a defunct historical manufacturer; this profile uses current Patria lineage material and specialist weapon references rather than an active Tampella corporate site.

Manufacturer Sources

  • Patria legacy historyPublisher: Patria | Note: Official Patria history source supporting Tampella's heavy-weapons roots, 1932 mortar manufacturing, 1985 155 K 83 manufacturing, and Vammas merger into Patria in 1997. | Accessed: 2026-07-06
  • Patria field-gun expertisePublisher: Patria | Note: Official Patria article supporting Tampella and Vammas as predecessors in Finnish field-gun development and the 122K60-to-155 mm development context. | Accessed: 2026-07-06
  • Patria from cannons to computersPublisher: Patria | Note: Official Patria article supporting Tampella's early Finnish Defence Forces mortar-prototype production and Tampella-to-Patria weapon-systems heritage context. | Accessed: 2026-07-06
  • Patria Vammas weapon systems brochurePublisher: Patria Vammas Oy | Note: Company brochure supporting the 1932 Tampella defence-products heritage, the 1991 merger of Patria Vammas Oy and Tampella Oy's Defence Division, and Vammala/Finland weapon-systems context. | Accessed: 2026-07-06
  • WeaponSystems.net Tampella M-83Publisher: WeaponSystems.net | Note: Specialist source supporting Tampella as developer and producer of the 155mm Tampella M-83 / 155 K 83 towed howitzer. | Accessed: 2026-07-06
  • ArmyInform M/41D profilePublisher: ArmyInform | Note: Specialist public profile supporting M/41D and 120 Krh/40 identity, Tampella production, 1935 prototype context, 1940 Finnish acceptance, Swedish export and licensed-production context, and reported production totals. | Accessed: 2026-07-11
  • Wikimedia Commons 120 Krh 40 categoryPublisher: Wikimedia Commons | Note: Media category and Wikidata-backed context identifying the 120 Krh/40 as a Finnish 120 mm mortar model of 1940 manufactured and designed by Tampella and exported to Sweden as Granatkastare m/41. | Accessed: 2026-07-11
  • Wikimedia Commons Granatkastare m/41 imagePublisher: Wikimedia Commons | Note: CC BY-SA 3.0 image source for a Granatkastare modell 41, the Swedish-service branch of the Tampella 120 Krh/40 heavy-mortar family. | Accessed: 2026-07-11

Produced weapons

Category

Artillery

Tube artillery, rocket artillery, and long-range ground fires.

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M/41D 120 mm mortar, 120 mm towed heavy mortar, Artillery2014 Russia-Ukraine WarM/41D 120 mm mortar120 mm towed heavy mortarBuilt in: Finland / SwedenThe M/41D is the Swedish-service branch of the Finnish Tampella 120 Krh/40 heavy mortar family, a Stokes-Brandt-pattern 120 mm weapon built for mobile indirect fire. Ukraine accepted the Swedish 120 mm M/41D into service during the full-scale Russia-Ukraine War, while open sources also document its older Finnish design base, Swedish licensed production, Baltic holdings, and continued relevance as a compact fire-support mortar.