A magnet actuator comprising - a first housing arrangement comprising a first housing, a first balancing magnet, and a first coil partially surrounding said first balancing magnet, - a second housing arrangement comprising a second housing, a second balancing magnet, and a second coil partially surrounding said second balancing magnet, said first coil and said first balancing magnet being at least partially located within, and fixed to, said first housing, said second coil and said second balancing magnet being at least partially located within, and fixed to, said second housing, - a main magnet arranged between said first balancing magnet and said second balancing magnet, a first constant attractive force (F C 1) being generated between said first housing and said main magnet, said first balancing magnet and said main magnet being configured to generate a first constant repulsive force (F C 2) therebetween, counteracting said first constant attractive force (F C 1), such that said first housing arrangement and said main magnet are maintained in a force equilibrium state, a second constant attractive force (F C 3) being generated between said second housing and said main magnet, said second balancing magnet and said main magnet being configured to generate a second constant repulsive force (F C 4) therebetween, counteracting said second constant attractive force (F C 3), such that said second housing arrangement and said main magnet are maintained in a force equilibrium state, said first coil and said main magnet being configured to generate a first alternating magnetic force (F A 1) therebetween, said second coil and said main magnet being configured to generate a second alternating magnetic force (F A 2) therebetween, wherein manipulating electrical current in said first coil causes a change in said first alternating magnetic force (F A 1) thereby causing displacement of said first housing arrangement in relation to said main magnet, and/or wherein manipulating electrical current in said second coil causes a change in said second alternating magnetic force (F A 2) thereby causing displacement of said second housing arrangement in relation to said main magnet. - a first housing arrangement comprising a first housing, a first balancing magnet, and a first coil partially surrounding said first balancing magnet, - a second housing arrangement comprising a second housing, a second balancing magnet, and a second coil partially surrounding said second balancing magnet, said first coil and said first balancing magnet being at least partially located within, and fixed to, said first housing, said second coil and said second balancing magnet being at least partially located within, and fixed to, said second housing, said first coil and said first balancing magnet being at least partially located within, and fixed to, said first housing, said second coil and said second balancing magnet being at least partially located within, and fixed to, said second housing, - a main magnet arranged between said first balancing magnet and said second balancing magnet, a first constant attractive force (F C 1) being generated between said first housing and said main magnet, said first balancing magnet and said main magnet being configured to generate a first constant repulsive force (F C 2) therebetween, counteracting said first constant attractive force (F C 1), such that said first housing arrangement and said main magnet are maintained in a force equilibrium state, a second constant attractive force (F C 3) being generated between said second housing and said main magnet, said second balancing magnet and said main magnet being configured to generate a second constant repulsive force (F C 4) therebetween, counteracting said second constant attractive force (F C 3), such that said second housing arrangement and said main magnet are maintained in a force equilibrium state, said first coil and said main magnet being configured to generate a first alternating magnetic force (F A 1) therebetween, said second coil and said main magnet being configured to generate a second alternating magnetic force (F A 2) therebetween, wherein manipulating electrical current in said first coil causes a change in said first alternating magnetic force (F A 1) thereby causing displacement of said first housing arrangement in relation to said main magnet, and/or wherein manipulating electrical current in said second coil causes a change in said second alternating magnetic force (F A 2) thereby causing displacement of said second housing arrangement in relation to said main magnet.