High-quality 3D assets at affordable prices — trusted by designers, engineers, and creators worldwide. Made with care to be versatile, accessible, and ready for your pipeline.

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 :
This 3D model collection features a comprehensive digital representation of a three-mode position stair climber convertible hand truck, a quintessential tool in modern material handling and logistics. The design integrates high-utility features that allow the unit to transition seamlessly between three distinct configurations: a vertical two-wheel hand truck, a horizontal four-wheel platform cart, and a specialized stair-climbing dolly. The stair-climbing functionality is achieved through a tri-wheel star configuration, which rotates to navigate steps and curbs with ease, significantly reducing the physical burden on the operator. Constructed with attention to industrial standards, the models showcase reinforced structural framing typically associated with heavy-duty aluminum or powder-coated steel builds. Key mechanical details, such as the spring-loaded locking pins for mode conversion and the ergonomic multi-position handles, are modeled with precision. These digital assets are ideal for use in architectural visualization, industrial safety training simulations, warehouse management software, and retail environment planning. The collection provides versatility for creators needing realistic logistics equipment that demonstrates mechanical adaptability and robust engineering. By capturing the dual-purpose nature of the convertible frame alongside the mechanical complexity of the specialized wheel assemblies, this collection serves as a highly detailed resource for any project requiring professional-grade transport tools.

KEYWORDS: dolly, stair, climber, convertible, logistics, warehouse, transport, industrial, cart, platform, aluminum, steel, wheel, trolley, equipment, hardware, ergonomic, delivery, loading, utility