A set of equipment for playgrounds for playing with sand from the well-known German manufacturer Richter Spielgeräte:

5.09415 - Conveyor Track
5.09440 - Conveyor Track: 3-way Point
5.09450 - Conveyor Track - Dumping Station for side emptying
5.09492 - Conveyor Track

Links to the manufacturer's website:
https://www.richter-spielgeraete.de/en/playground-equipment/products/sand-and-water/sand-play/509450-conveyor-track-dumping-station-for-side-emptying/ 
https://www.richter-spielgeraete.de/en/playground-equipment/products/sand-and-water/sand-play/509415-conveyor-track-made-of-oak/ 
https://www.richter-spielgeraete.de/en/playground-equipment/products/sand-and-water/sand-play/509440-conveyor-track-3-way-point/ 
https://www.richter-spielgeraete.de/en/playground-equipment/products/sand-and-water/sand-play/509492-conveyor-track/ 

Faces: 155957
Verts: 158003

Vray: 4.20.00. Who works in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you.

Corona 5.0. For Corona render, it is recommended to install at least version 1.5, as the glossiness of the materials is adjusted with PBR in mind.

3dsMax2016 + fbx and textures files included.