Haver & Boecker Niagara Exciters supported by Signature Service Programs Haver & Boecker Niagara offers its signature brand of vibrating screen exciters, Niagara Exciters. The technology provides customers increased service life and less maintenance, and is fully supported by Haver & Boecker Niagara’s service and refurbishment programs, which provide an added level of reliability. The exciters are offered in four models, each of which is adjustable to provide eight weight configurations, delivering the largest static moment range on the market. Niagara Exciters come standard on all Haver & Boecker Niagara exciter-driven XL-Class and L-Class vibrating screens, and are also available as aftermarket parts for any brand of exciter-driven machine. Exciter-driven vibrating screens are ideal for high-tonnage applications and heavy-duty environments, such as dewatering or SAG mill screening, due to the equipment’s strength and advanced sealing system.