Self-Feed Units: The Selection ProcessTOOL FEATURES / ENGINEERING MANUAL
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)
|a) Chuck||Base drill comes standard with 3/8" (10 mm) keyed drill chuck.
Optional 1/4” (6.5mm) and 1/2” (13mm) keyed drill chucks.
|b) Collet Holder & Collet||Optional alternative to the keyed drill chucks.
Uses Type 950 collets, 3/8” maximum drill size.
|c) Multiple Spindle Heads||Multiple Spindle Heads are available with fixed or adjustable centers.
The Heads mount directly onto the Self-Feed Units.
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.|
|a) Nose Angle Bracket|
|b) Nose Flange|
|c) Column and Clamp Options|
|a) Return Limit Kit||Sends out a positive signal when the tool returns to the home position. Pneumatic or Electric options.|
|b) Dwell Control||Used to dwell for a set period of time in the extended position before returning back to the home 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, fluid, 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) Skip Check Unit||Enables drill units to skip through tubular sections.|
Why Use Air Tools?
|Air tools offer a much better power to weight ratio compared with electric tools.|
|Safer than electric.|
|Air tools do not require the cool off period that some electric tools require.|
|Simpler design and construction.|
|Not damaged by stalling.|
Who Uses Air Tools?
|1. Aerospace Industry||Drills, Tappers, Screwdrivers, Abrasive Tools, Riveters, Nutsert Tools.|
|2. Vehicle Assembly||Drills, Screwdrivers, Impact Wrenches, Abrasive Tools, Nutrunners, Nutsert Tools.|
|3. Automotive||Impact Wrenches, Polishers, Chipping Hammers.|
|4. Construction Industry||Impact Wrenches, Chippers, Grinders, Scabblers. Needle Scalers, Core Drills.|
|5. White Goods||Screwdrivers, Drills, Tappers, Nutrunners, Riveters, Nutsert Tools.|
How Does an Air Motor Work?
An air motor works by creating a flow of air over a rotor in a cylinder. This flow of air causes the rotor to turn and produce a torque proportional to the pressure of the air supply.
How Does a Percussive Tool Work?
A percussive tool works by applying air to either side of a piston in a cylinder in turn to propel the piston forwards and then backwards to produce a force on the object the piston comes into contact with.