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 represents a high-efficiency manual material handling solution known as a six-wheel stair-climbing trolley or stair-climber hand truck. Specifically engineered for the logistical challenges of transporting heavy payloads across uneven elevations, the device utilizes a tri-star wheel configuration. This mechanical design features two rotating assemblies, each holding three independent wheels, which pivot to maintain contact with the vertical and horizontal surfaces of a staircase. The model showcases the structural integrity required for industrial applications, typically consisting of a reinforced steel or aluminum alloy frame, ergonomic handles for operator leverage, and a sturdy toe plate for load support. The geometry captures details such as the axle mechanisms, pneumatic or solid rubber tires, and the cross-bracing that prevents frame torsion under stress. In addition to its primary utility for vertical transport, the six-wheel system provides enhanced stability on flat surfaces compared to traditional two-wheel dollies, as it distributes weight across four contact points at any given time. This model is ideal for architectural visualizations of warehouse environments, delivery simulations, and industrial design demonstrations where realistic logistical equipment is required. Its versatile design reflects common standards in professional courier services and home improvement machinery.

KEYWORDS: trolley, wheelbarrow, stair, climbing, handtruck, dolly, logistics, transport, industrial, equipment, loading, warehouse, moving, heavy, metal, wheels, mechanical, barrow, lifting, delivery