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In 1936 the vibratory compactor was developed by a mechanical engineer Hilding Svenson. In 1940 the company name changed to AB Vibro-Verken. In 1947 it launched the first vibratory plate compactor, which weighed 1.5 tonnes, being nicknamed the frog. It opened its research laboratory in 1948 and manufactured the first vibratory road roller in 1953.
Vibration mode of a clamped square plate. The vibration of plates is a special case of the more general problem of mechanical vibrations.The equations governing the motion of plates are simpler than those for general three-dimensional objects because one of the dimensions of a plate is much smaller than the other two.
The plate compactor, vibrating plate, or tamper, has a large vibrating baseplate and is suited for creating a level grade, while the rammer compactor has a smaller foot. The rammer, or trench rammer, is mainly used to compact the backfill in narrow trenches for water or gas supply pipes etc. Road rollers may also have vibrating rollers.
Modern vibration plates are the latest iteration in a long history of vibrating exercise devices, from belts to couches. From the 1940s to the 1960s, “what was being sold, almost entirely to ...
Vibrating compactors are used for soil compaction especially in foundations for roads, railways, and buildings. Concrete vibrators consolidate freshly poured concrete so that trapped air and excess water are released and the concrete settles firmly in place in the formwork.
JCB Vibromax, formerly known as Vibromax was a manufacturer of road rollers in West Germany.The former Vibromax was acquired by JCB in 2005 and rebranded as JCB Vibromax. In 2012, the Vibromax part of the brand was dropped, and in 2014 the Gatersleben factory was closed with production dispersed to other JCB facilities, marking the end of Vibromax as a distinct business unit.