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(mechanical engineering)
Machine designed to consolidate earth and paving materials by kneading, weight, vibration, or impact, to sustain loads greater than those sustained in an uncompacted state.
A machine that compresses solid waste material for convenience in disposal.



a machine for layer-by-layer consolidation of soil using a dropping working member. It compacts soils of various compositions and various states, including natural bedding.

A distinction is made between heavy-duty, medium-duty, and light-duty compactors. Heavy-duty machines produce an impact energy of up to 5 × 104 joules (J); medium-duty machines, 103-104 J; and light-duty machines, or tampers, up to 103 J. Among the heavy-duty compactors are those based on power shovels or tractors. The working member of such compactors is usually a plate that weighs up to 3 tons and is dropped from a height of up to 2.5 m. Medium-duty compactors include diesel-powered machines that are self-propelled or in the form of equipment mounted on tractors. Such compactors may have mechanical or explosive action or may use a steam-air drive.

In some compactors, the impact is transmitted through a plate resting on the soil surface (a sole plate); in others, the working member strikes the soil surface directly.

Compactors mounted on crawler tractors are common. This type of compactor has up to five consecutively operating diesel-powered tampers or a dropping plate. The operating speed of such a compactor is 0.2–0.3 km/hr, and the productivity is as high as 450 cu m per hr, with a compacted layer up to 1.5 m thick.


Spravochnik konstruktora dorozhnykh mashin, 2nd ed. Moscow, 1973.
Spravochnik inzhenera-mekhanika dorozhnika. Moscow, 1973.



compactor, 1
1. A machine that uses weight, vibration, or a combination of both, to achieve compaction.
2. A motor-driven machine (usually having one or more rams) which reduces the volume of waste material by subjecting it to pressure and forces it into a removable container.
References in periodicals archive ?
These dual-frequency transformers use limited number of lumped elements and will afford much compacter dimension compared to other distributive alternatives.
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Tenders are invited for Construction of fixed compacter transfer station (FCTS) near Press Enclave marg near Max Devki Devi Hospital in ward no.
The demand for equipment such as bailers, compacters, loaders, tractor trolleys will also rise.
The company has over 3000 different options of storage systems such as slotted angle racks, pallet racks, mezzanine floors, mobile compacters, filling systems etc.
Perry and his fellow Compacters say it has transformed them for the better, allowing them not just to save money but also to focus on their families.
The sometimes on-road car, sometimes off-roader, the Kuga has chunky good looks without it appearing too much like a jelly mould, as so many 4x4 compacters do.
The company also provides 3,500 industrial customers with roll-off service for bins or specials compacters each week.
Waste compacters have been installed at Ginsters, main bakeries at Callington and Launceston.