Air Rammer

(Also known as Pneumatic Rammer / Air Tamper / Backfill Rammer)

An Air Rammer is a pneumatic compaction tool that uses compressed air to deliver powerful vertical impacts for compacting soil, sand, gravel, or asphalt.
It is primarily used in construction, road repair, trench backfilling, and foundry sand molding operations. Unlike heavy plate compactors, an air rammer is handheld and portable, making it ideal for narrow trenches, confined areas, or around structural foundations where larger machines cannot reach.

Working Principle

1. Air Supply: Compressed air enters through the inlet and activates an internal reciprocating piston.

2. Piston Impact: The piston moves up and down rapidly inside a cylinder.

3. Impact Transfer: Each downward stroke drives the ram foot (tamper head) into the material, compacting it layer by layer.

4. Continuous Operation: As long as the trigger is pressed, it delivers repetitive blows (typically 700–900 bpm).

Key Features

• High Impact Force: Efficient compaction with minimal operator effort.

• Compact Design: Ideal for working in trenches or around pipework.

• Replaceable Ram Foot: Available in steel, aluminum, or rubber for different materials.

• Lubricated Air System: Built-in oiler increases durability.

• Ergonomic Handle and Throttle: Easy control and fatigue reduction.

• Optional Shock-Reduced Design: Minimizes vibration to the operator’s arms.

Applications

• Backfilling and compacting soil around foundations, poles, and pipelines.

• Trench and pothole repair in road maintenance.

• Compacting asphalt patches in confined spaces.

• Foundry and casting operations (molding sand compaction).

• Construction of retaining walls and utility works.

Advantages

• Portable and lightweight — easy to maneuver.

• Provides uniform compaction in tight or narrow areas.

• Safe in wet or flammable environments (no electrical spark).

• Long service life with minimal maintenance.