Ingersoll Rand 8268-A12-1 Self-Feed Twin Drill | 3/8" Capacity | 0.75 HP | 1,200 RPM | Double Gear Reduction

Built for automated production drilling and close-center machining, the Ingersoll Rand 8268-A12-1 Self-Feed Twin Drill combines a 3/8" drilling capacity, 0.75 HP pneumatic motor, and 1,200 RPM free speed to perform repeatable drilling operations in production environments. Its twin-spindle arrangement allows two machining operations per cycle, helping reduce parts handling and machining time. The double gear reduction provides the lower spindle speed required for applications where controlled drilling performance is important.

The 8268-A12-1 uses adjustable spindle heads for close-center machining requirements, with spindle centers adjustable from 3/4" to 3-3/4". Its double-acting air piston provides controlled forward and retract strokes, while needle valve controls allow feed adjustment. An adjustment screw provides infinite stroke-length settings up to 3.0", giving production engineers flexibility when configuring the drilling cycle.

Type: Self-Feed Twin Drill | Series: Super Par-A-Matic | Capacity: 3/8" (9.5 mm), Steel | Power: 0.75 HP (0.56 kW) | Free Speed: 1,200 RPM | Gear Reduction: Double | Stroke Length: 1-1/2" (38 mm) | Thrust @ 90 PSI: 250 lbs (1112 N) | Air Consumption: 2.9 ft³/cycle (82 L/cycle) | Sound Level: 77 dB(A)

Features:

• Adjustable dual spindle heads allow the tool to be configured for changing machining requirements.
• Twin-spindle operation allows two machining operations to be performed during each cycle.
• Double gear reduction provides the specified 1,200 RPM spindle speed for controlled drilling.
• Double-acting air piston provides smooth, controlled forward and retract strokes.
• Needle valve controls allow adjustment of forward and retract strokes.
• Adjustment screw provides infinite stroke-length settings up to 3.0" maximum.
• Spindle adjustment from 3/4" to 3-3/4" accommodates close-center machining requirements.
• Muffled exhaust helps reduce operating noise, with a specified sound level of 77 dB(A).

NON RETURNABLE. MADE TO ORDER.

Applications:

• Automated production drilling where two machining operations are performed per cycle.
• Close-center drilling applications requiring adjustable spindle spacing.
• Production drilling of steel components within the specified 3/8" capacity.
• Fixture-based manufacturing systems requiring controlled pneumatic feed and spindle operation.
• Production environments where reduced parts handling and repeatable drilling cycles are required.

FAQs:

• Q: What is the drilling capacity of the 8268-A12-1?
  A: The model has a specified 3/8" (9.5 mm) capacity in steel. The manufacturer also lists nominal capacities for stainless steel, SAE 1213 steel, aluminum, and wood, medium or FRP.
• Q: What does double gear reduction mean on this twin drill?
  A: Double gear reduction reduces the motor speed through two stages of gearing to provide the specified 1,200 RPM spindle speed. This configuration is used where a lower controlled drilling speed is required.
• Q: How far apart can the spindles be adjusted?
  A: The spindle centers can be adjusted from 3/4" to 3-3/4", allowing the twin drill to accommodate different close-center machining requirements.
• Q: What is the stroke length?
  A: The standard stroke length is 1-1/2" (38 mm), while the adjustment screw allows infinite stroke-length settings up to a 3.0" maximum.
• Q: How much thrust does the drill provide?
  A: The specified thrust is 250 lbs (1112 N) at 90 PSI.