Sprängkapsel

Sprängkapsel is the Swedish term for a small explosive initiating device used to trigger a larger explosive charge in blasting operations. In English, it corresponds to a blasting cap or detonator. The kapsel contains a small amount of explosive and is designed to be activated by an electric or mechanical initiator, so that the energy released reliably initiates the main charge. Its purpose is to provide a controlled and reliable initiation to ensure proper detonation of the blast.

Historically, sprängkapslar evolved from percussion and fuse-based devices in the 19th and early 20th centuries, enabling more consistent blasting in mining and construction. With advances in technology, modern detonators have become common, including non-electric and electronic timing systems that improve precision, safety, and control of initiation. Sprängkapslar are used in rock blasting, quarrying, demolition, and related applications, though in many contexts they are increasingly supplemented or replaced by programmable electronic detonators.

Safety and regulation are central to their use. Handling, storage, transport, and operation of sprängkapslar are tightly controlled due to their hazardous nature. In many jurisdictions, only licensed professionals may purchase or manage blasting systems, with strict procedures for storage, transport, and disposal. Improper use can lead to accidental detonation, injuries, or environmental damage.

See also: blasting cap, detonator, electronic detonator, blasting machine.