noun
machinery; gadgetry; equipment
Refers to machines collectively, often in contexts like factories, workshops, or technical descriptions.
工場には新しい機械類が導入された。
New machinery was introduced to the factory.
この倉庫には古い機械類がたくさん保管されている
A lot of old equipment is stored in this warehouse.
装置 often implies a device or apparatus with a specific function, whereas 機械類 is a broader collective term for machinery.
Compound of 機械 (machine) and 類 (kind, category), literally 'machine category'.