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Ridgid Column Upgrade
Ridgid Column Upgrade

Product #: 5640/5645


NOTE: The mounting hole pattern for this column is designed to work with the new mill base that has the thru hole for the Y-axis cover tube. It will not mount on an older style mill base. If you wish to use this ridgid base with an older style mill base, you will need to drill and C’bore the two new holes. We can either supply you with the dimensions, or you can send your base in to have it modified for a fee by us. Call us for a print or a machining quote.

The 5640 (5641 metric) ridgid column is designed for those who have a 5400-series mill. Each comes with the 2000-series ram with laser-engraved scales in your choice of SAE or metric measurements, and gives the versatility of Sherline’s 2000-series mill column with its large work area and seven directions of movement. The tall column (P/N 5645/5646) provides more Z-clearance.

The columns bolt to the mill base using the two angled side-by-side 1/4-20 SHCS’s in the new style base, although we include two new bolts with each base. These columns have the newer style hole pattern through the base to accept the Y-axis leadscrew cover tube. The short base is the same height as the regular 2000 mill round column. The tall column is the same height as the 2000 round column with the riser block in place.

Installation Orientation of the Ridgid Column Base

When it is mounted, the step on the boss should be to the front of the machine (see picture below). This will give you an additional ¼” of Y axis travel more than the 2000 column.

5645/5646 Tall 5400 Mill Column Base shown for reference


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