Building sites pack
Tower cranes and lifting
Assemble tower and mobile cranes from modular parts, plus hoists and lifting equipment.
Modular tower and mobile cranes (masts, jib sections, slews, trolleys, hook blocks, ballast, outriggers) plus a material hoist, concrete skip, lifting cage, pallet fork and slings, with three assembled rigs.
- One-off payment, perpetual commercial licence
- Download straight after payment, link emailed too
- Free updates: links serve the current version, and you can get new links any time
Prices in US$. Prices in £ (UK, VAT included)
Or everything: lifetime access to all 17 packs and every future pack for $202. Limited to 97 licences.
Or get the whole shelf: Building sites bundle, all 4 packs for $80 (save $31 on buying them separately).
| Component models | 22 |
|---|---|
| Assemblies | 3 |
| Format | GLB (glTF 2.0 binary) |
| Detail levels | High, medium, low files for every model |
| Compression | Meshopt-compressed GLB, plus uncompressed copies |
| Textures | Embedded in every model |
| Triangles (high) | 88 to 7,804 per model |
| Download | 9.4 MB zip, compressed and uncompressed GLBs |
| Scale | 1 unit = 1 metre |
| Best for | Skyline cranes, Animated lifting |
| Version | Pack format 2.1, models last updated 26 September 2026. What changes in an update |
Compatibility
| What | Works with | Tested |
|---|---|---|
| GLB files | Any glTF 2.0 tool: three.js, react-three-fiber, Babylon.js, PlayCanvas, Blender (uncompressed copies included for tools without meshopt) | three.js 0.186 |
Assembly loader assemblies.js | three.js (and react-three-fiber, which uses three.js) | three.js 0.186 |
Kit runtime jstov-kit.js (materials, poses) | three.js | three.js 0.186, offline from the unzipped folder |
Other engines read the GLBs, but the assemblies and generators are three.js code: in Babylon.js or Blender you place the parts yourself.
What is in the Tower cranes and lifting pack
The pack has 22 separate component models and 3 assemblies. You build the cranes from modular parts.
The tower crane group is the largest: tower base, tower mast, tower slew, tower counterjib, tower ballast, tower jib section, tower jib tip and tower trolley, with a hook block and a hoist line. The mobile crane uses mobile chassis, mobile outrigger, mobile slew, mobile boom base and mobile boom extension. The lifting kit has material hoist base, material hoist mast and material hoist car, plus concrete skip, lifting cage, pallet fork and two leg sling.
The 3 assemblies are complete examples that place the components: Tower crane, Mobile crane, and Material hoist and lifting loads.
Scenes you can build with it
The site lists this pack for skyline cranes and animated lifting.
For a skyline, the tower crane assembly is the starting point, and the tower mast, jib section and counterjib parts let you build variations of your own. For animated lifting, each part is its own model, so the trolley, hook block, hoist line and loads such as the concrete skip or lifting cage can be moved separately. The contents do not include ready-made animation, so any movement is yours to write.
The mobile crane suits ground-level scenes. Its chassis, outriggers, slew and boom parts are separate models.
How the models are made
Every model is a GLB (glTF 2.0 binary) file at high, medium and low detail. Each comes Meshopt-compressed, with uncompressed copies alongside. Textures are embedded in every model.
High-detail triangle counts range from 88 to 7,804 per model. One unit is one metre. The tallest component is the hoist line at 3 m high, and the widest is the mobile chassis at 8.413 m across.
Where it stops, and what to pair it with
This pack covers lifting equipment. It contains no ground, no buildings and no site furniture, so a scene needs context from elsewhere.
It is part of the Building sites range, and the other packs fill the gaps:
- Buildings under construction
- Construction plant and machinery
- Site cabins, services and groundworks
The licence allows commercial games, apps, websites, visualisations and client work. Reselling or redistributing the model files is not allowed.
What you can build: the included assemblies
Every component model in the pack
Open any model for its triangle counts, dimensions and a live 3D preview.
Concrete skip
Hoist line
Hook block
Lifting cage
Material hoist base
Material hoist car
Material hoist mast
Mobile boom base
Mobile boom extension
Mobile chassis
Mobile outrigger
Mobile slew
Pallet fork
Tower ballast
Tower base
Tower counterjib
Tower jib section
Tower jib tip
Tower mast
Tower slew
Tower trolley
Two leg sling
Worked example
Build and animate a modular tower crane: stack the mast to any height and move the slewing head, trolley and hook in code.
Questions
What is in the Tower cranes and lifting pack?
22 component models, each as high, medium and low detail GLB files (a 9.4 MB zip, with uncompressed copies), plus 3 assembly files that place those models into the complete examples shown on this page and a small three.js loader for them, and the licence.
How many triangles are the models?
Between 88 and 7,804 triangles at the high detail level. Each model's page lists the count for every level.
Can I use them in a commercial project?
Yes. The licence covers commercial games, apps, websites, visualisations and client work. You cannot resell or redistribute the model files themselves. See the licence page for the full terms.
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