4 Wheel Heavy Duty Trolley Assembly Roller for Barn Doors or Shed Sliding Doors, Compatible with 1-5/8" Wide or All 1-5/8" or Taller Strut Channel (4 Packs)

High-Quality Materials: Our unistrut trolley is crafted from galvanized steel, offering exceptional resistance to impact, corrosion, and rust. Built to last, it ensures long-term reliability even in demanding environments | Strong Load Capacity: Designed with a solid bearing steel pin shaft, this hoist trolley can support weights up to 600 pounds. Its robust construction prevents breakage, making it suitable for sliding garden fence, sliding heavy Barn or outdoor shed sliding doors | Smooth & Silent Operation: Equipped with quality bearings, our 4 wheel trolley assembly operates smoothly and quietly. Whether used in a ceiling trolley system or with an electric lift, it provides high stability and low noise for a more comfortable working environment | Universal Compatibility & Easy Installation: The strut channel trolley roller is compatible with 1-5/8 inch wide and all 1-5/8 inch or taller strut channels, making it versatile and easy to install. The 1/4 inch thick steel plate features three screw holes for quick and secure mounting using M6 bolts, saving you time and effort | Optimal Performance Recommendation: For best performance, we recommend using the strut channel horizontally to ensure proper weight distribution and smooth operation of your sliding door system