Compaction: Vibrating Plates, Rollers and Rammers

They compact soil, granular material and subbases before laying asphalt, paving or underground services. Vibration reduces voids and increases bearing capacity, that is the soil's ability to withstand loads. The collection includes plates, double-drum rollers and frog rammers, each suited to a different type of surface.

The choice depends on the surface and the material. A vibrating plate is practical for small backfills and limited surfaces, while a reversible plate can go back without turning. A double-drum roller covers larger surfaces, and the frog rammer is useful where you need to work in tight spaces or next to walls and trenches.

Petrol and diesel machines are designed for road works and prolonged outdoor jobs, where autonomy matters. The collection also includes Milwaukee machines from the MX FUEL line, chosen when a power source other than an internal combustion engine is needed. Check the power type, power output, runtime and weight on the technical data sheet before deciding.

Plates differ in weight, width and compaction force, which the manufacturer states in the technical data sheet. The material to compact, granular or cohesive, also changes the choice and the number of passes needed. Check the width of the area and the depth required. For finished surfaces there is a dedicated base plate, which protects the coating from direct vibration.

Those who use plates, rollers and rammers are exposed to vibrations transmitted to hands and arms or to the whole body, governed by D.Lgs. 81/2008. The employer must assess the exposure and reduce it, for example with anti-vibration handles, staff rotation and breaks. Machines must carry CE marking under the Machinery Directive. Ask the supplier for the data sheet stating the declared vibration value.

Work with both hands on the handles and keep a safe distance from the edge of trenches and walls. Guide the rammer forward without forcing it, and stop it before adjusting plates or accessories. Wear safety footwear, hearing protection and eye protection, and check that the rubber mat is intact before use.

The transport wheel kit is used to move the vibrating plate without lifting it by hand, reducing effort and the risk of strains. The rubber mat for compactors protects the finished surface, such as a paving or coating, from direct vibration. Choose these accessories based on the machine you have and the manufacturer's instructions.