Traditionally, when installing long welded rail using a Road Rail Machine (RRV) or excavator a Drag Clamp is used to position the rail string ready for threading then a Rail Thimble is used to thread the rail into position.
Changing from one attachment to the other takes time and usually involves the RRV travelling back and forth between the work location and an equipment stabling point.
Combining the two functions into one unit allows the operator to switch immediately between dragging and threading and vice-versa without releasing the rail. The unique design of this device also allows it to be used on both running rails and conductor rails and no adjustment is needed between rail types.
The TD15-01 Threader Dragger can be used for:
• Dragging Rail
• Threading Rail
• Lifting Rail
• Pick-and-Placing Rail
• Fine Positioning of Rail
Two hydraulic services are required to power the TD15 Threader Dragger, one to open and close the dragger jaws and one to deploy and release the threading rollers. The device is suspended from the host machine by the pivoting arch frame and, for short pulls, rail can be dragged by pulling on this point. For long pulls a chain can be attached between the host machine subframe and a tow point on the device which allows better control of the rail and removes shock loads from the machine boom.
The TD15 Threader Dragger is a true all-purpose rail handling device.