Principles of operation
The vibratory tamping rammer machine is a lightweight and portable compaction equipment that compacts soil by vibration. Its rounded shape and simple operation let it to reach into small corners, making it ideal for usage in difficult-to-reach areas. These devices are powered by gasoline, diesel, or electric engines.
Tamping rammers focus greater emphasis on specific spots due to direct compaction, rather than vibrating the soil in situ. Furthermore, their more elegant shape enables them to penetrate locations where the vibrating plate compactor may be unable to reach.
Soils suitable for tamping rammer
The rammer compacts the earth by impacting it. They exert a significant compressive force on the earth, squeezing out any water and air.
Tamping rammers, also known as jump jacks or jack rammers, work well in soils with humidity levels as low as 13%. When it comes to soil types, they should be employed with cohesive soils. Clay or any soil with a high clay percentage is referred to as cohesive soil. This dirt adheres tightly, especially when moist. When dried, cohesive soil is tough to break and will not chip.
When operating a rammer on gravel or asphalt, avoid damaging the equipment. Furthermore, the rammer is unsuitable for granular materials. If you use one on such soil, you will just dig a hole.
Types of rammers
Gasoline tamping rammer
The cylinder is built on the two-stroke internal combustion engine concept, with two upper and lower pistons; the top piston is an internal combustion piston, while the lower piston is a buffer piston. The lower section of the cylinder is equipped with a rammer with an inclined bottom surface, causing the cylinder’s vertical axis to be inclined forward.
The upper piston rod protrudes from a through-hole in the centre of the cylinder head cover, while the lower piston rod protrudes from the cylinder’s lower end and is merged with the rammer. Spring tensions the cylinder and the rammer, and handrails are supplied to manage the rammer.
Motor tamping rammer
It is built on the rotational inertia force concept and consists of a rammer, a ram frame, an eccentric block, a pulley, and a motor.
The motor and gearbox are positioned on the skid base, and the ram frame’s rear end is pivoted with the transmission shaft. The ram frame may swing up and down along this axis due to the eccentric block’s centrifugal force.