The excavator has already opened the foundation, the soil is piled to one side, and now everything stops. The problem isn't the digging: it's moving that material to the other side of the jobsite, or getting it out, before it blocks the masons' path. It happens on renovation jobsites, in urban yards, and on row-house projects where the service gate is narrow and the truck can't get in.
The three phases and who does what
In construction earthmoving there are three distinct moments: excavation, hauling, and backfill. Mixing them up leads to using the wrong machine at the wrong time, with time losses that stack up throughout the day.
Excavation is the job of the excavator or demolition hammer: it breaks and loosens the material, then piles it in place. The excavator doesn't haul — or rather, it doesn't do so efficiently beyond a few meters. When it's used to move soil from one side of the jobsite to the other, half its productive capacity is wasted.
Hauling is a job in its own right. It picks up the material where the excavator left it, takes it where it's needed — to the truck, to the dump point, to the backfill area — and returns to load again. The speed of this cycle drives everything else on the jobsite: if hauling is slow, the excavator waits or idles, and the cost of the day rises without anything moving forward.
Backfill closes the cycle: material is distributed exactly where it's needed, at the right gradient, without damaging what's already in place. It's precision work, and a machine with good maneuverability makes a real difference compared to a large machine that can't get close enough.
Where the bottleneck forms
Almost every time, the bottleneck is hauling, not excavation. The excavator works within a few square meters and can wait. Hauling, on the other hand, must run continuous cycles over routes that change throughout the day: uneven ground, temporary ramps, passages that narrow when construction materials arrive.
On urban construction jobsites, access is an added problem. The yard gate, the side alley, the garage ramp: these are routes designed for people, not for construction equipment. A compact tracked dumper gets through where a truck can't even approach, and it doesn't need pavement to move under load.
Routes, ground conditions, and dumping: three things to check beforehand
Before starting, it's worth thinking through three concrete factors.
The route: where is the loading point, where is the dump point, how many meters lie between them, and what obstacles are along the way. If the route changes as the jobsite progresses, that needs to be planned for.
The ground: packed dirt, loose gravel, slope, seasonal mud. A wheeled machine loses traction and gets stuck right when it's under load. Tracks distribute the weight and maintain grip even on soft ground, without damaging the surface when working near already-finished areas.
The dump point: where the material goes and how it needs to arrive. If dumping into a truck, the skip height matters. If it's for backfill, the precision of distribution matters. A standard tipping skip works in almost all cases; for jobs requiring greater dump height, dedicated setups are available, such as a high-dump configuration.
In the Cormidi lineup
The Cormidi tracked dumpers are built to work on exactly these kinds of routes: construction jobsites with difficult access, uneven ground, and continuous load-and-dump cycles. They are available with gasoline or diesel engines and in multiple skip configurations, from a standard tipping skip to high-dump, up to a self-loading version for those working without a support excavator.
For larger jobsites where the hauling cycle is long and the operator follows the machine all day, the C200 adds a cushioned operator platform: the operator rides on board, the machine carries consistent payloads and covers longer distances without fatigue building up. It is also available in a remote-control version for stretches where visibility is limited or the route carries risk.
Before choosing the machine, measure the jobsite
It's worth checking the width of the narrowest passage on the jobsite, the type of ground during the months you'll be working, and the dump height needed relative to the truck skip or backfill point. These three figures — plus an estimate of the volume of material to be moved — are what you need to choose the right model and configuration. The local dealer can help compare options based on the actual jobsite, not a generic scenario.
