Modular fans feature clamshell knuckles that clamp the blades at precise pitch angles
WindShift Modular Fans’ clamshell knuckles clamp each blade to a 0.25–inch (six–millimeter) steel center disk. Customers specify blade configuration and pitch angle, center disk diameter and rotation. Equally spaced blade configuration options are offered with six, seven, eight, nine, 11 or 13 blades. Read More

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