Self Feed Units:
The Selection Process

1. Select Base Unit:

a) Pneumatic or Electric

b) Correct rpm

Metric	R =	318.5 x Surface Meters per Minute Drill dia. (mm)
US Standard	R =	3.82 x Surface Feet per Minute Drill dia. (inches)

2. Select Front End Attachment:

a)	Chuck	Base drill comes standard with 3/8" (10 mm) drill chuck.
b)	Collet Holder & Collet	For Tappers, the tapping head is included (single spindle only).
c)	Multiple Spindle Head	Multiple spindle head collets need to be ordered separately.
d)	Offset Head	For drilling applications requiring special clearances.
e)	Spindle Positioners	To facilitate rapid changeover of spindle positioning where alternative settings are required on Multi-Spindle heads.

3. Select Mounting Bracket:

a)	Nose Angle Bracket
b)	Nose Flange
c)	Column and Clamp Options

a)	Return Limit Kit	Sends out a positive signal at the retract end of the self feed cycle.
b)	Dwell Control	Used to dwell for a set period of time in the extended position.
c)	Hydraulic Feed Control	Sets a constant feed rate through the material.
d)	Peck Feed Kit	Allows pecking of unit for drilling deep holes.
e)	Swarf Exclusion Kit	Protects drill unit from swarf (chips, dirt, etc.).
f)	Exhaust Collector	Reduces noise and protects drill unit from swarf. Allows muffling or piping of exhausted air away from the work area.
g)	Bottom Limit Kit	Sends a signal when drill unit is fully extended.
h)	PLC Interface Module	Permits PLC to communicate with Self Feed Units.
i)	Skipcheck Unit	Enables drill units to economically transit tubular sections.

 

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