Ingersoll Rand 8245-B45-2 is a Bant-A-Matic Series Self-Feed Air Drill designed for automated and fixture-mounted drilling applications where controlled feed and retract movement are required. This model combines a 0.25 HP (.20 kW) pneumatic motor with a 4,400 RPM free speed and single gear reduction. The -2 configuration provides a 2 in. (51 mm) stroke, making it suitable for repetitive drilling operations that require controlled spindle travel. The manufacturer's catalog identifies the B45 series for 3/16 in. (4.8 mm) capacity, steel.
The Bant-A-Matic self-feed system uses compressed air for both spindle rotation and feed/control functions. Its double-acting air piston provides smooth, controlled forward and retract strokes, while needle-valve controls allow adjustment of the forward and retract strokes. A built-in four-way valve enables manual or remote operation, and the adjustment screw provides infinite stroke-length settings. Ball-bearing spindle support provides precision and long service life, while the damped exhaust allows a quieter work environment.
Type: Self-Feed Air Drill | Series: Bant-A-Matic B45 | Model: 8245-B45-2 | Capacity: 3/16 in. (4.8 mm), Steel | Motor Power: 0.25 HP (.20 kW) | Free Speed: 4,400 RPM | Gear Reduction: Single | Stroke Length: 2 in. (51 mm) | Thrust at 90 PSI: 90 lb (400 N) | Air Consumption at Working Speed: 1.5 ft³/cycle (42 L/cycle) | Sound Level: 77 dB(A) | Standard Chuck Capacity: 1/4 in. (6.4 mm)
Features:
- The self-feed configuration provides controlled forward and retract movement for repetitive drilling cycles.
- The rotary-vane air motor provides the spindle rotation required for pneumatic drilling.
- The double-acting air piston provides smooth, controlled forward and retract strokes.
- Needle-valve controls allow adjustment of the forward and retract strokes.
- The adjustment screw provides infinite stroke-length settings for controlled feed travel.
- The built-in four-way valve enables both manual and remote operation.
- Ball-bearing spindle support provides precision and long service life.
- The damped exhaust helps provide a quieter work environment during operation.
- The 1/4 in. standard chuck accommodates compatible drill tooling within the manufacturer's specified capacity.
- The pneumatic design requires only simple circuitry for installation.
NON-RETURNABLE. MADE TO ORDER.
Applications:
- Production drilling — performing repetitive holemaking operations where controlled pneumatic feed and retract movement are required.
- Fixture-mounted machining — integrating the self-feed drill into dedicated drilling fixtures and production equipment.
- Metal fabrication — drilling compatible steel components within the manufacturer's stated capacity.
- Secondary machining — adding repeatable drilling cycles to manufacturing processes without continuous manual feed control.
- Automated drilling systems — using the four-way valve for manual or remote operation where the installation supports it.
FAQs:
- Q: What is the free speed of the 8245-B45-2?
A: The 8245-B45-2 has a 4,400 RPM free speed. - Q: What is the motor power?
A: This Bant-A-Matic self-feed drill uses a 0.25 HP (.20 kW) pneumatic motor. - Q: What does the “-2” suffix indicate?
A: The -2 configuration identifies the 2 in. (51 mm) stroke version of the 8245-B45 series. - Q: What does single gear reduction mean?
A: It identifies the single gear reduction configuration used in the spindle drive of this 4,400 RPM model. - Q: What is the thrust rating?
A: The catalog specifies 90 lb (400 N) thrust at 90 PSI. - Q: What is the standard chuck capacity?
A: The standard chuck capacity is 1/4 in. (6.4 mm). - Q: What is the nominal drilling capacity?
A: The B45 series is identified by the manufacturer as having a 3/16 in. (4.8 mm) capacity in steel. The detailed catalog table also lists material-specific nominal capacities for the B45 series; these vary by material and should not be treated as a universal maximum hole size. - Q: Can the drill be operated remotely?
A: Yes. The built-in four-way valve enables both manual and remote operation.
| SKU | STROKE LENGTHS IN (MM) |
FREE SPEED RPM |
*NOMINAL DRILLING CAPACITIES | THRUST @ 90PSI LBS (N) |
AIR CONSP.‡ AT WORKING SPEED FT³/CYCLE (L/CYCLE) |
SOUND LEVEL DBA |
STANDARD CHUCK CAPACITY IN (MM) |
GEAR REDUCTION |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|
| STAINLESS STEEL TYPE 304 |
STEEL SAE 1213 |
ALUMINUM 2024-T4 |
WOOD MED. OR FRP |
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| BANT-A-MATIC SERIES | |||||||||||
| 8245-203-1* | 1-1/4” (32) | 19,000 | — | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | Single | ||||
| 8245-101-1 | 1-1/4” (32) | 10,000 | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | Double | ||||
| 8245-B45-1 | 1-1/4” (32) | 4,400 | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | 5/32 (4.0) | 90 (400) | 1.5 (42) | 77 | 1/4 (6.4) | Single |
| 8245-B30-1 | 1-1/4” (32) | 2,700 | 1/16 (1.6) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Single | ||||
| 8245-B8-1 | 1-1/4” (32) | 900 | 3/32 (2.4) | 3/16 (4.8) | 1/4 (6.4) | 5/16 (7.9) | Double | ||||
| 8245-203-2 | 2.0” (51) | 19,000 | — | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | Single | ||||
| 8245-101-2 | 2.0” (51) | 10,000 | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | Double | ||||
| 8245-B45-2 | 2.0” (51) | 4,400 | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | 5/32 (4.0) | 90 (400) | 1.5 (42) | 77 | 1/4 (6.4) | Single |
| 8245-B30-2 | 2.0” (51) | 2,700 | 1/16 (1.6) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Single | ||||
| 8245-B8-2 | 2.0” (51) | 900 | 3/32 (2.4) | 3/16 (4.8) | 1/4 (6.4) | 5/16 (7.9) | Double | ||||
| 8245-203-3 | 3.0” (76) | 19,000 | — | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | Single | ||||
| 8245-101-3 | 3.0” (76) | 10,000 | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | Double | ||||
| 8245-B45-3 | 3.0” (76) | 4,400 | 1/32 (0.8) | 1/16 (1.6) | 1/8 (3.2) | 5/32 (4.0) | 90 (400) | 1.5 (42) | 77 | 1/4 (6.4) | Single |
| 8245-B30-3 | 3.0” (76) | 2,700 | 1/16 (1.6) | 1/8 (3.2) | 3/16 (4.8) | 3/16 (4.8) | Single | ||||
| 8245-B8-3 | 3.0” (76) | 900 | 3/32 (2.4) | 3/16 (4.8) | 1/4 (6.4) | 5/16 (7.9) | Double | ||||
| PAR-A-MATIC SERIES | |||||||||||
| *8255-172-1 | 1-1/4” (32) | 17,000 | — | 1/64 (0.4) | 1/32 (0.8) | 1/16 (1.6) | Single | ||||
| 8255-101-1 | 1-1/4” (32) | 10,000 | — | 1/32 (0.8) | 1/16 (1.6) | 5/32 (4.0) | Double | ||||
| 8255-A50-1 | 1-1/4” (32) | 5,000 | — | 5/64 (2.0) | 3/16 (4.8) | 3/16 (4.8) | Single | ||||
| 8255-A28-1 | 1-1/4” (32) | 2,800 | 1/16 (1.6) | 9/64 (3.6) | 1/4 (6.4) | 1/4 (6.4) | Single | ||||
| 8255-A21-1 | 1-1/4” (32) | 2,100 | 7/64 (2.8) | 7/32 (5.6) | 9/32 (7.1) | 5/16 (7.9) | 170 (756) | 2.3 (65) | 74 | 5/16 (7.9) | Single |
| 8255-A14-1 | 1-1/4” (32) | 1,450 | 5/32 (4.0) | 1/4 (6.4) | 5/16 (7.9) | 3/8 (9.5) | Double | ||||
| 8255-A8-1 | 1-1/4” (32) | 850 | 11/64 (4.4) | 9/32 (7.1) | 21/64 (8.3) | 25/64 (9.9) | Double | ||||
| 8255-A5-1 | 1-1/4” (32) | 500 | 1/4 (6.4) | 5/16 (7.9) | 11/32 (8.7) | 13/32 (10.3) | Double | ||||
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