The LoadScan Load Volume Scanner (LVS) is the original non-contact ‘drive-through’ lorry & dump truck load measurement instrument for the accurate measurement of bulk material volumes.Using a gravel calculator is an ideal way to accurately plan your inventory needs for larger-scale projects, and to make sure you purchase just the right amount of gravel for one-off jobs. Eliminates any discrepancy around varying moisture content and settlement.The system is fast and fully automated and allows for every load to be measured.The system is non-contact so measuring the load does not interfere with the load volume in any way.Volumetric load scanning measures the actual load volume in a truck or trailer bin for each measured load, regardless of theoretical bin capacity.Volumetric load scanning has several advantages over manually measuring truck or trailer capacity or loads: Volumetric load scanning works on the principle of comparing empty bin profiles against loaded bin profiles for the same vehicle to compute the load volume. More and more bulk material industry leaders are measuring their inbound and outbound loads by volume. Volume scanning technology brings accuracy to truck measures For example, pushing the bucket hard into the bottom of the stockpile produces a more compacted load than loosely scooping off the side of the stockpile.ĭue to the self-compaction/settlement of heaped material under its own weight, multiple bucket loads may not equate exactly to resultant cumulative heaped volumes in truck bins or in stockpiles generated from truck loads.
How the bucket is pushed into the stock-pile significantly impacts the effective volume when transferred to truck bin. It’s also difficult to load into the bin corners. Loader/excavator operators often cannot even see inside the truck bins. In practice trucks and trailers are not loaded exactly to capacity every time. The same is true for trucks and trailers. And it’s definitely not practical to get out and level every bucketful! In fact the loader operator can’t generally see the scoop very well. In practice operators do not load each bucket consistently to the same level. Even in a single stockpile, the density of material scooped lightly off the top can be quite different from material dug deep from the bottom of the heap. Material density and moisture content can vary considerably across a quarry site and with depth. Conversion factors are genericĬonversion factors are typically computed on a dry day in carefully controlled conditions and do not necessarily reflect the weight-to-volume ratio of supplied materials. Often the differences between what the supplier claims was in a truck (in cubic metres or cubic yards) and what the buyer claims, is quite significant. The volume of a load changes due to the product bedding down as a result of vibration, braking and bumps during transport. If the material is wet when loaded, it can weigh considerably more at the point of loading than at the point of unloading as water run-off occurs in-transit. This practise, which often occurs in quarries, works in the supplier’s favour. Wet is heavier than dry.Ī stockpile can become wet because of rain, or from deliberate wetting of stockpiles to prevent dust. Weight varies depending on the moisture content of the load material. Here are a few of the key issues with traditional truck measures. Why traditional truck measures are inaccurate Unload truck/trucks into hole or container of known capacity.Count scoops using a loader bucket of known capacity.Weigh using an inline weighing system on loader bucket and convert to volume.Weigh using a weighbridge and convert to volume.
There are 6 basic methods generally used to determine truck measure, either as the sender or receiver of the load. So what are the traditional truck load measurement methods and what exactly are the accuracy issues? Traditional truck measures The trouble is, with traditional load measurement techniques, there is too much ‘guesswork’ involved due to the use of inaccurate measures and conversion factors. This is an age old problem in industries where flowable solids are carted and traded by the truck-load such as civil construction, quarry and landscape supply.
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