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Included File Formats
This model is provided in 14 widely supported formats, ensuring maximum compatibility:
• - FBX (.fbx) – Standard format for most 3D software and pipelines
• - OBJ + MTL (.obj, .mtl) – Wavefront format, widely used and compatible
• - STL (.stl) – Exported mesh geometry; may be suitable for 3D printing with adjustments
• - STEP (.step, .stp) – CAD format using NURBS surfaces
• - IGES (.iges, .igs) – Common format for CAD/CAM and engineering workflows (NURBS)
• - SAT (.sat) – ACIS solid model format (NURBS)
• - DAE (.dae) – Collada format for 3D applications and animations
• - glTF (.glb) – Modern, lightweight format for web, AR, and real-time engines
• - 3DS (.3ds) – Legacy format with broad software support
• - 3ds Max (.max) – Provided for 3ds Max users
• - Blender (.blend) – Provided for Blender users
• - SketchUp (.skp) – Compatible with all SketchUp versions
• - AutoCAD (.dwg) – Suitable for technical and architectural workflows
• - Rhino (.3dm) – Provided for Rhino users

Model Info
• - All files are checked and tested for integrity and correct content
• - Geometry uses real-world scale; model resolution varies depending on the product (high or low poly)
• - Scene setup and mesh structure may vary depending on model complexity
• - Rendered using Luxion KeyShot
• - Affordable price with professional detailing

Buy with confidence. Quality and compatibility guaranteed.
If you have any questions about the file formats, feel free to send us a message — we're happy to assist you!

Sincerely,
SURF3D
Trusted source for professional and affordable 3D models.

More Information About 3D Model :
The tri-wheel stair climbing hand truck is a specialized material handling device engineered to facilitate the transport of heavy loads over vertical obstacles and uneven terrains. The defining feature of this equipment is its rotating triple-wheel assembly, often referred to as a star-wheel configuration. This mechanism allows the cart to maintain continuous contact with stair treads, significantly reducing the physical effort required to lift or pull loads upward. Typically constructed from high-grade tubular steel or lightweight aluminum, these trolleys feature a reinforced toe plate and a tall vertical frame to accommodate crates, boxes, and bulk items safely. The design often incorporates ergonomic handles and folding components for compact storage when not in use. These devices are essential in logistics, delivery services, and domestic settings where navigating stairs is a frequent requirement. The physics of the rotating wheel hub effectively redistributes weight during the climbing phase, minimizing physical strain on the operator compared to traditional two-wheel hand trucks. This model provides an accurate representation of the mechanical linkages and structural components found in modern industrial stair climbers.

KEYWORDS: trolley, stair, climber, truck, crate, cart, hand, logistics, transport, industrial, loading, warehouse, moving, wheel, metal, heavy, foldable, ergonomic, utility, delivery