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

Designed for automated production drilling and close-center machining, the Ingersoll Rand 8268-A12-3 Self-Feed Twin Drill combines a 3/8" capacity, 0.75 HP pneumatic motor, and 1,200 RPM free speed for controlled, repeatable drilling operations. Its double gear reduction provides the lower spindle speed suited to applications requiring controlled drilling, while the twin-spindle configuration allows two machining operations to be performed during a production cycle.

Part of the Super Par-A-Matic Series, the 8268-A12-3 features a 3.0" stroke and adjustable dual spindle heads for changing machining requirements. The self-feed design incorporates pneumatic spindle rotation and feed functions, while the adjustable spindle arrangement is suited to close-center production applications where consistent drilling cycles and reduced parts handling are important.

Type: Self-Feed Twin Drill | Series: Super Par-A-Matic | Capacity: 3/8" (9.5 mm) | Power: 0.75 HP (0.56 kW) | Free Speed: 1,200 RPM | Gear Reduction: Double | Stroke Length: 3.0" (76 mm) | Thrust @ 90 PSI: 250 lbs (1112 N) | Air Consumption: 2.9 ft³/cycle (82 L/cycle) | Sound Level: 77 dB(A) | Chuck Capacity: 3/8" (9.5 mm)

Features:

• Twin-spindle configuration allows two drilling operations to be performed during a production cycle.
• Double gear reduction provides the specified 1,200 RPM free speed for controlled drilling applications.
• 3.0" stroke provides extended axial travel for production drilling cycles.
• Adjustable dual spindle heads accommodate changing machining requirements.
• Double-acting air piston provides 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".
• Muffled exhaust helps reduce operating noise during production operation.

NON RETURNABLE. MADE TO ORDER.

Applications:

• Automated production drilling where two machining operations can be performed during one cycle.
• Close-center machining applications requiring adjustable dual spindles.
• Production drilling of steel components within the specified capacity.
• Fixture-based manufacturing systems requiring pneumatic spindle rotation and controlled feed.
• Production environments where repeatable drilling cycles and reduced parts handling are required.

FAQs:

• Q: What is the drilling capacity of the 8268-A12-3?
  A: The model is listed with a 3/8" (9.5 mm) nominal drilling capacity. The published material-specific capacities include 1/8" (3.2 mm) for stainless steel Type 304, 5/16" (7.9 mm) for Steel SAE 1213, 11/32" (8.7 mm) for Aluminum 2024-T4, and 3/8" (9.5 mm) for medium wood or FRP.
• Q: What does double gear reduction mean?
  A: Double gear reduction uses two stages of gearing to reduce spindle speed and provide the specified 1,200 RPM free speed for this model.
• Q: What is the stroke length?
  A: The 8268-A12-3 has a 3.0" (76 mm) stroke.
• Q: What thrust does this twin drill provide?
  A: The specified thrust is 250 lbs (1112 N) at 90 PSI.
• Q: What is the recommended operating pressure?
  A: The published performance data is based on a recommended operating pressure of 90 PSI (6.2 bar).