Featuring class leading strength, accommodating rope diameters up to 10mm, and available in 23 individual configurations, Ronstan’s new Series 40 Orbit Blocks™ are the most capable blocks of their size. Impressive load ratings ranging from 400kg-1000kg (HHL versions) create opportunities for more applications which may have previously required the use of a larger block. Ronstan’s two stage bearing system ensures high efficiency across the full load range in both dynamic and static load applications.