Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.


(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 ?
The Pithampur plant has been able to meet the resulting hike in demand, keeping pace with this fast growing market, and exported its highly successful vibratory compactors to other countries.
The corporation claims that after installing the compactors there would decline in the number of dhalaos.
Potential licensees interested in obtaining more information about the Hoover Multi-Purpose Compactor and discussing licensing opportunities with respect to the product can contact the Manufacturer Response Department of Innovation Direct[TM] at (877) 991-0909 ext.
A fleet of seven Dynapac CA250D vibratory compactors are being deployed on the initial earthworks for the Rapid integrated refinery and petrochemical project being developed by Petronas in southern Johor, Malaysia.
If you have ever considered trash compactors, let these three elements guide your decision.
It tells how much time is left before the compactor needs to be removed for emptying and replaced with another empty one.
Also, we arc able to drain off any-liquid from the compactors into our effluent system which means we are not paying for its weight, as we used to, when the loads are collected so we have saved a little money through that and through needing fewer collections.
The system utilizes submersible level-sensing probe to identify hydraulic leaks of less than 6 oz, shuts down compactor to stop active leak, and auto-restarts when fluid level is restored.
Dulsco further revealed that the City Compactor is also perfect to be stationed at event arenas that are located in congested areas as it helps do away with traditional forklifts, handcarts, and extra man-hours to pull out bins from small enclosures and narrow streets.
When installed in a local community, the Solar-Powered Trash Compactor assists municipalities and facilities in reducing waste collection frequency, lowering customer costs and providing a greener, cleaner environment.
now introduces eco-friendly garbage collection with its all-new battery-powered trash compactor utilizing the power supply system developed for Mitsubishi Motors' i-MiEV in its garbage collection trucks.