Tana has released a special high-density drum to maximise crushing force on a landfill site into more uniformly sized particles.
Strong compactor teeth can be the difference between excellent or average traction and manoeuvrability on a landfill site, as they break, grind and compact their way through refuse efficiently.
The end result is increased efficiencies, allowing operators to increase profitability and focus their efforts on other crucial areas of the business.
To improve compaction rates with greater crushing force, Tana has released a special high-density drum with additional crushing teeth to further enhance its powerful BigFoot Drum design.
Available through exclusive supplier GCM Enviro, the new drum can be fitted to a new Tana E Series landfill compactor as an option and was recently released in Australia.
The new drums take traction and efficiency to a new level and increase the ability to compact waste in a shorter period.
The normal BigFoot drum and high-density drum share the same external dimensions. Both drum models have crushing teeth in 11 rows. On the normal BigFoot drum there are 10 teeth per row while on the special drum there are 14 teeth per row. The special drum is roughly 500 kilograms heavier than the normal model.
The high-density drum has 44 spikes/feet more than the regular drum, four on each 11 rows of the drum, ending up with a total number of crushing feet of 154 per drum.
Jarmo Launiainen, Applications Manager, Compactors at Tana, says the more crushing teeth engaging the surface per drum rotation, the higher the compaction levels achievable.
“Most professionals support the claim that the key to compaction is reducing the incoming waste into more uniformly sized particles,” Jarmo explains.
“Large size differences may allow empty spaces between the waste items, even after compaction. This is why a very high crushing force made by the compactor is needed to minimise this effect.”
Jarmo says the size, shape, structure and total number of the crushing teeth is important to ensuring a uniform compaction.
In a Tana E Series landfill compactor, the teeth are specifically designed for the most effective crushing and compaction. Measuring in at 200 millimetres (7.8 inches) in height, the compactors allow for thorough, highly wear-resistant, deep and aggressive penetration of every fresh waste layer. The teeth are designed in the shape of a pyramid, made of solid steel and are kept clean by a large number of adjustable scraper bars.
On the first pass, the Tana spreads and compacts the new waste layer on top of the previously compacted surface. The second pass concentrates on the crushing and thorough compaction of the waste. On the third pass, the pyramid shaped teeth and inverted conical spaces in between the teeth tie down the surface of the compaction path.
“Naturally, different waste types require a different number of passes to achieve the best results,” Jarmo says.
“All homogenous waste fractions have the tendency to extrude from underneath a conventional compactor’s wheels. The structure of Tana’s drums and teeth prevent this from happening.”
Jarmo says that there are two different types of pressure that work in tandem to achieve the optimum compaction: waste compacting and waste escaping pressure.
“Compaction teeth are pressing the material deeper and the pan around the drum/wheel causes ground pressure together with the teeth. Ground pressure only compacts the top surface as the teeth compacts the waste deeper,” he says.
“Essentially, the static linear load increases with each pass.”