EOS2 Applications

Manual silo inventory, for when a plumb bob doesn't cut it

The EOS2 captures a full 3D scan of the material inside a silo, with data comparable to portable LiDAR scanners, at a fraction of the price. Lower it through the roof hatch, scan in about three minutes and measure the real volume.

Row of concrete silos behind sand and aggregate stockpiles, with a solar-powered EOS2 LiDAR sensor on a pole
$2,750To buy an EOS2, or $100/month to lease
360°×180°Full 3D scan of the silo interior
~3 minPer scan, started from outside the silo

The problem

A plumb bob measures one point. Your inventory isn't flat.

Dropping a weighted tape or plumb bob through the hatch gives you a single depth reading. Material in a silo cones up under the fill point, draws down in a funnel over the outlet and clings to the walls, so one reading can be far from the real volume.

Portable LiDAR scanners solve that with a full 3D picture of the material surface, but they are priced for professional survey work. For a plant that just needs a trustworthy inventory number a few times a month, that is hard to justify.

Three silo scans showing sloped material surfaces at different fill levels, colored by height

Compare

Plumb bob, portable scanner or EOS2

The EOS2 gives you the 3D data of a portable LiDAR scanner for a fraction of the price.

FeaturePlumb bob or weighted tapePortable LiDAR scannerEOS2 LiDAR sensor
What it measuresOne depth at one spotFull 3D surfaceFull 3D surface: a 360° x 180° point cloud
Inventory accuracyAssumes a flat surface; misses cones, funnels and wall buildupSurvey-grade volume from the measured surfaceComparable point cloud data, measured in Hyperion
CostVery lowPriced for professional survey workA fraction of a portable scanner: $2,750, or $100/month to lease
How it is usedLowered by hand at the hatchSet up at the opening by a trained operatorLowered through the hatch and started wirelessly from outside
Record you keepA number on a clipboardPoint cloudPoint cloud you can re-measure and compare over time

How it works

How a manual silo scan works

The EOS2 is small, runs on 12 VDC and talks over Wi-Fi and Bluetooth, so it goes wherever you can lower it.

1

Lower the sensor in

Secure the EOS2 to a pole or tether through its standard 3/4" NPT mount and lower it through a roof hatch or access port, with a portable battery for power.

2

Run a spherical scan

Start the scan wirelessly from outside. The EOS2 sweeps a full 360° x 180° sphere at 1° resolution in about three minutes, capturing the material surface, walls and roof at once.

3

Add positions if needed

For tall silos, scan from more than one height and merge the point clouds into a single model of the interior.

4

Get the volume

Open the point cloud in Hyperion to calculate the volume of material, apply its bulk density for tonnage and keep the scan for next time.

Follow your site's confined-space and working-at-height procedures when working at silo openings.

Interactive 3D

See the data quality for yourself

Real silo scan data, rendered live in your browser. Rotate, zoom and pan to inspect the walls, the roof structure and the cone.

The reference point cloud from an EOS2 scanner, captured inside a silo and colored by height.

Drag to rotate, scroll or pinch to zoom, right-drag to pan. Real EOS2 scan data.

The material surface mesh generated by Hyperion from the scan, the basis for its volume calculation.

Drag to rotate, scroll or pinch to zoom, right-drag to pan. Generated by Hyperion from real EOS2 scan data.

What you get

More than a volume number

Because every scan is a full 3D record of the silo, one visit answers several questions.

Real material volume

Measured from the actual surface, including cones under the fill point and funnels over the outlet.

Wall buildup

See where material is clinging to the walls or cone before you plan a cleanout.

Discharge problems

Spot bridging and rat-holing from the shape of the material surface.

History you can compare

Keep each scan and compare point clouds to track inventory and condition over time.

Need continuous data?

Mount the EOS2 permanently and let Hyperion scan on a schedule

Manual scans are ideal for periodic inventory counts. For silos, bays and storage buildings you need to watch every day, the same sensor can be mounted permanently, and Hyperion delivers automated, quality-checked volumes hourly, daily or on demand.

Silo scanning FAQ

Both produce a full 3D point cloud of the silo interior, and the EOS2 data is comparable for inventory measurement. The EOS2 costs a fraction of the price: $2,750 to buy or $100 per month to lease.

A plumb bob measures one depth at one spot. Material in a silo is rarely flat: it cones under the fill point, funnels over the outlet and builds up on the walls, so a single reading can be far from the real volume. A 3D scan measures the whole surface.

No. The EOS2 is lowered through a roof hatch or access port and started wirelessly from outside, so the scan itself does not require entry. Follow your site's procedures for work at the opening.

A full 360° x 180° scan at 1° angular resolution takes about three minutes. Taller silos may need scans from more than one height, merged into one point cloud.

Each scan reaches 100–200 ft from the scanner (200–400 ft across) depending on how visible the surfaces are.

Open the point cloud in Hyperion to calculate the volume of material and apply its bulk density for tonnage, or export it to your own analysis software.

Contact

Get a better silo count

Tell us about your silos, the material they hold and how you measure inventory today, and we will help you plan scan positions and choose the right equipment.