H2W Technologies offers miniature versions of both moving coil and moving magnet voice coil actuators. Plus the company offers custom designed solutions to meet application specifications.
H2W has built its smallest moving magnet voice coil actuator (NCM01-04-001-2IB) to date, with an outside diameter of 0.40 in. — 10 mm — and a length of 0.735 in. or 18.8 mm.
It has a stroke of 0.10 in. (2.5 mm) and generates a continuous force of 0.10 lb or 0.45 N …
… and a peak force of 0.30 lb or 1.35 N. It weighs just 0.20 ounces (5.7 g). This actuator uses a hardened shaft and sliding contact bushing to ensure long life, and is suitable for oscillatory motion.
The compact design lets designers use the actuator in a number of handheld applications.
Moving-magnet voice coil actuators have built-in bearings so there’s no need for designers to add mass or complexity to their motion system to integrate a bearing. Plus there are no moving leads to make end users worry about cable management.
The smallest moving coil voice coil actuator (NCC01-04-001-1X) has an outside diameter of 0.44 in. or 11.1 mm and a length of 0.36 in. or 9 mm. It has a stroke of 0.13 in. — 3.2 mm — and generates a continuous force of 0.06 lb (0.27 N) and a peak force of 0.18 lb or 0.8 N. It weighs just 0.20 ounces or 5.7 g.
The bobbin is constructed of plastic to prevent any damping forces that a metallic bobbin would create. The compact design allows the actuator to be used in a number of handheld applications.