Core Lock Center-Wind or Surface Wind ? ? ? ? We make both kinds of winding machines. Center-Wind is rotatiing the tube on to which the material is being rolled. Surface-Wind is rolling the material on to a tube using friction rollers against the material. After exhausting experiments (trial and error), the center wind has proven a better system for us. When large diameter rolls are being wound, it is important that proper tension is exerted as the diameter gets larger. We start off with a tight tension, and decrease it as the diameter grows. this keeps a good quality roll with a good edge. After many complaints about the use of a bar, and bar locking devices, we developed our "CORE LOCK". It is a mechanical planetary spline gear arrangement that expands to various core diametersa and as more torques is applied to the shaft it exerts more pressure on the i.d. of the tube. this device not only locks to the i.d. of the tube, but it centers it as well. This allows for high speed winding while eliminating vibrations. The shaft is hexagon which allows for quick changing of sizes. the two standard sizes are 1 1/2 " and 2 1/2" and 2" to 5". We make smaller and larger ones, up to 10". 1611 Fabricon Blvd Jeffersonville, IN 47130 Phone: 1-800-372-7379, 1-812-288-4455 Fax: 1-812-284-1518 drapery@iglou.com © 1997-2001 Morgan Manufacturing and Engineering Company, Inc