COMBINATION ROLLER WITH SMOOTH DRUM

Smooth drums can be used on most soil types, rock fill to cohesive soils. The single drum roller is generally equipped with all-weather tires which ensure favourable traction and grad ability under most soil conditions. The operating weights retch from 2 to 25t.The heavy single drum rollers are normally available with 2 amplitudes and 2 sequences for thick and thin layers in order to withstand extreme loads during compaction of rock fill whereby the drum must be of high strength and durability. Long striven goal of research and development and a remarkable leap in technology was achieved specially with the newly developed vibrator exciters. These innovative self –controlling systems detect the energy requirement and regulate the system automatically.

SINGLE DRUM ROLLER WITH ONE VIBRATING DRUM

The attachment of hydraulically driven vibratory plates to the single drum vibratory roller extents the range of application and rationalises compaction work. The depth effect of the single drum roller is whereby combined with the favourable surface effect of the plate, thereby achieving a higher compaction output with less passes. With this combination the single drum roller compacts with the front drum and the vibratory plates are driven by an additional hydraulic pump on the single drum roller and work with an adjustable frequency of 32 to 50Hz and a centrifugal force of max.50Kn.

SINGLE DRUM VIBRATORY ROLLER WITH HYDROSTATICALLY DRIVEN VIBRATORY PLATES ATTACHED

Another possible application is the efficient soil compaction in highway and transportation engineering, urban foundation and civil engineering projects or such projects under confined spatial conditions. This work requires compact and extremely manoeuvrable single drum rollers in the 7t-class, which can be optimally adapted to the permanently reducing the vibration stress for nearby buildings at the same time. The use of the VARIOCONTROL system is therefore also recommended for these compact single drum rollers.

SINGLE DRUM ROLLERS WITH PADFOOT DRUM

Pad foot drums are designed for the compaction of cohesive soils and mixed particle soils with relatively high water content. The imprints of the pad-feet contribute to a reduction of water content. They are also used for compaction of rock fill, in order to reduce the air void content and to crush large particles. As an adaptation to very moist, slippery soil condition single drum rollers with pad foot drum are equipped with extremely profiled tires similar to tractors, as a measure to enhance the traction power. These single drum rollers need a highly durable drive system. From the present point of view separate drives of drum and wheels should be standard.BOMAG pad foot rollers are equipped with special teeth with their shape and in combination with vibration they should achieve a kneading and impact or crushing effect together with a favourable depth effect. The roller is also combined with pyramid teeth (high studs, small contact areas, extremely steep flanks)for kneading and cohesive soils, triangular teeth for crushing of hard rock by means of high tip pressure and splitting forces, triangular teeth with cutters in between for splitting and crushing of brittle rock, whereby the cutters in between also prevent jamming of particles between the teeth.