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AC-100 Air Collet Closer
Haas offers three types of collet closers for use on HA5C indexing heads. Each of the three designs offers unique benefits you should consider before making a selection. AC125 and AC25 use shop air to drive a piston through a mechanical multiplier to close the collet. This provides greater holding force and reduces operator fatigue, compared to standard manual-handle closers. A simple flick of a lever causes the collet to open or close without effort. On multi-spindle heads, one of these air-actuated closers is required if you plan to use collets, because a standard handle will not fit and is not included.
The AC 100 uses spring force for part clamping, and air pressure for release. It will retain full part clamping even if air pressure is removed. the AC 100 provides a 1 1/8'' diameter thru-hole, and collets are easily tightened form the rear. It provides up to 10,000 lb of draw-tube force, with 0.25'' travel and can be used for drilling and milling in most application. The .025'' travel allows for a part diameter variation of .006'' without the need to readjust the collet. Due to its long not recommended for tilting HA5Cs. also, some consideration must be given to clearances when using the AC 100 parallel to the Y-axis, as its length may collide with the Z-axis waycover.
