Manufacturer catalog

Patria Vammas Oy

Patria Vammas Oy was a Finnish weapon-systems company in the Tampella-to-Patria heavy-weapons lineage, associated with mortar, field-gun, and ammunition work before Vammas was absorbed into Patria's consolidated defence-industrial group in 1997.

1 weapons

Patria Vammas Oy carried forward Finnish heavy-weapon work linked to Tampella's defence division. Patria historical material traces the lineage from Tampella mortar production in 1932, through Finnish field-gun development, into Vammas and finally into Patria's unified defence-equipment structure.

The company's own weapon-systems brochure placed Patria Vammas in Vammala, Finland and described a manufacturing and development base that reached back to Tampella's first defence products. That period matters for catalog attribution because public sources often identify the same industrial line under Tampella, Vammas, Patria Vammas, or later Patria names depending on production date and source age.

For catalog purposes, Patria Vammas is most useful as the historical producer context for Finnish heavy mortars and the late Tampella/Vammas field-gun line. Current Patria sources describe the continuing know-how as gun and mortar expertise inherited from predecessors Tampella and Vammas rather than as a still-independent Patria Vammas business.

mortar systemsfield artilleryweapon systemsFinnish heavy weapons

Notable Systems

120 KRH 92, 120 mm heavy mortar, Artillery

120 KRH 92

120 mm heavy mortar

Army Recognition identifies the 120 KRH 92 mortar model as manufactured by Vammas.

Sources: Army Recognition 120 KRH 92 Ukraine
155mm Tampella M-83, 155 mm towed gun-howitzer, Artillery

155mm Tampella M-83

155 mm towed gun-howitzer

Patria's history identifies Tampella's 1985 manufacturing start for the 155 K 83, while current Patria field-gun material describes the later 155 K 98 line as based on predecessor Tampella and Vammas development.

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

Manufacturer History

  1. Tampella defence-products lineage begins

    Patria historical material traces Patria Vammas weapon-systems roots to Tampella's first defence products in 1932.

    Sources: Patria legacy history

  2. 155 K 83 field-gun manufacturing begins

    Patria's history states that Tampella began manufacturing the 155 K 83 field gun in 1985, a system that sits in the heavy-field-gun line later described by Patria through its Tampella and Vammas predecessors.

    Sources: Patria legacy history, Patria field-gun expertise

  3. Tampella defence division and Patria Vammas merger

    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

  4. Vammas merges into Patria

    Patria's company history states that Vammas Oy and other Finnish defence-industry entities were merged into Patria in 1997.

    Sources: Patria legacy history

Predecessors
Tampella Oy Defence DivisionVammas Oy
Successors
Patria
Website links
Patria legacy historyPatria field-gun expertisePatria Vammas weapon systems brochure

Patria Vammas is historical rather than an active standalone company; current public sourcing is strongest through Patria lineage material, the archived Patria Vammas brochure, and system-specific defense references that distinguish Tampella, Vammas, and Patria naming by period.

Manufacturer Sources

  • Patria legacy historyPublisher: Patria | Note: Official Patria history source supporting Tampella heavy-weapons roots and Vammas merger into Patria in 1997. | Accessed: 2026-07-11
  • Patria Vammas weapon systems brochurePublisher: Patria Vammas Oy | Note: Company brochure supporting the Patria Vammas weapon-systems lineage, Vammala/Finland context, and 1991 Tampella defence-division merger. | Accessed: 2026-07-11
  • Army Recognition 120 KRH 92 UkrainePublisher: Army Recognition | Note: Defense reporting source identifying the 120 KRH 92 mortar model as manufactured by Vammas. | Accessed: 2026-07-11
  • Patria field-gun expertisePublisher: Patria | Note: Official Patria article supporting the Tampella and Vammas predecessor line behind Finnish 155 mm field-gun development, current Patria gun and mortar expertise, and continuing field-gun maintenance and manufacturing capability. | Accessed: 2026-07-11
  • WeaponSystems.net Tampella M-83Publisher: WeaponSystems.net | Note: Specialist reference supporting 155mm Tampella M-83 identity, Finnish origin, Tampella development, Finnish designation 155 K 83, and the relationship between the M-83 and the later Patria-Vammas 155 GH 52 APU. | Accessed: 2026-07-11

Produced weapons

Category

Artillery

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

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