It's what makes Coal Quest your best choice in severe applications such as panel, mainline, tripper or slope belts. Coal Quest belt is available in 1-ply 400, 1- ply 600, 3-ply 600, 3-ply 800, and 3-ply 1,000 PIW configurations. The design of Coal Quest features a Triple-Warp fabric center ply surrounded by a pair of abuse-resistant and ...