Built for quarrying, excavation, and construction drilling, the Ingersoll Rand JRD50-A Reversible Pawl Air Rock Drill delivers 2,300 blows per minute through a 2" piston stroke and 3" bore. This combination provides repeated percussion for drilling holes in rock and similarly hard material, while the 7/8" x 3-1/4" hex shank accepts matching drill steels and jack rods. The reversible pawl system controls drill-steel rotation and permits directional operation when required during drilling or steel removal.
The JRD50-A supports wet or dry drilling and is rated for holes up to 2" in diameter and 16 ft deep. An easy-access adjustable three-speed throttle lets the operator change the tool’s output as material and drilling conditions vary. At the same time, the integral muffler helps reduce exhaust noise at the tool. With catalog air consumption of 120 CFM at 90 PSI, this rock drill requires a compressed-air system capable of maintaining the specified flow and pressure under load.
Type: Reversible Pawl Air Rock Drill | Model: JRD50-A | Hex Shank Size: 7/8" x 3-1/4" | Stroke: 2" (51 mm) | Bore: 3" (76 mm) | Length Without Accessory: 20.5" (521 mm) | Weight Without Accessory: 51 lb (23 kg) | Maximum Hole Diameter: 2" (51 mm) | Maximum Hole Depth: 16 ft (406 cm) | Blows Per Minute: 2,300 BPM | Air Consumption: 120 CFM | Air Inlet: 3/4" NPT | Recommended Hose Size: 3/4" (19 mm) | Rated Air Pressure: 90 PSI (6.2 bar)
Features:
- Easy-access adjustable three-speed throttle provides selectable output as drilling conditions change.
- Reversible pawls control drill-steel rotation and allow directional operation when required.
- Integral muffler helps reduce exhaust noise generated during pneumatic drilling.
- Supports wet or dry drilling to accommodate different jobsite practices and material conditions.
- 7/8-inch x 3-1/4-inch hex shank accepts matching jack rods and drill steels.
- 2-inch piston stroke and 3-inch bore deliver percussion for holes up to 2 inches in diameter.
- 2,300 blows per minute maintains steady impact action during rock-drilling operations.
Tech Tip: To increase tool performance, extend tool life and lessen repair costs use it with a Filter-Regulator-Lubricator (FRLs)
Applications:
- Quarry and aggregate operations — drilling production, splitting, and utility holes in rock.
- Construction and excavation — penetrating rock during foundation, trenching, grading, and site-preparation work.
- Mining support — completing pneumatic drilling tasks in surface or underground operations.
- Road and infrastructure projects — drilling for anchoring, blasting preparation, and controlled rock removal.
- Contract drilling work — producing wet or dry holes within the tool’s specified diameter and depth capacity.
FAQs:
- Q: What shank size does the Ingersoll Rand JRD50-A accept?
A: The JRD50-A uses a 7/8" x 3-1/4" hex shank. Drill steels, jack rods, and related tooling must match this exact shank configuration. - Q: What size hole can the JRD50-A drill?
A: Ingersoll Rand lists a maximum hole diameter of 2 inches and a maximum hole depth of 16 feet. Actual drilling results depend on the rock, bit selection, air delivery, and operating technique. - Q: How much compressed air does this rock drill require?
A: Catalog air consumption is 120 CFM, with performance figures measured at 90 PSI. The compressor, fittings, and supply line must sustain both the required airflow and pressure while the drill is operating. - Q: What does the reversible pawl mechanism do?
A: The pawl mechanism controls drill-steel rotation, and the reversible configuration permits rotation in either direction. This helps the operator manage the steel during drilling and withdrawal. - Q: Can the JRD50-A be used for wet drilling?
A: Yes. Ingersoll Rand specifies this model for either wet or dry drilling.
| SKU | HEX SHANK SIZE | STROKE IN (MM) | BORE IN (MM) | LENGTH WITHOUT ACCESSORY IN (MM) | WEIGHT WITHOUT ACCESSORY LB (KG) | MAX HOLE DIAMETER | MAX HOLE DEPTH | BPM | CFM | INLET SIZE NPT IN | RECOMMENDED HOSE SIZE IN (MM) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| JRD30-A | 7/8” x 3-1/4” | 1.44” (37) | 2.38” (60) | 19.5” (495) | 29 (13.2) | 1.5” (38) | 10’ (254) | 2,700 | 73 | 3/4” | 3/4” (19) |
| JRD30-B | 7/8” x 4-1/4” | 1.44” (37) | 2.38” (60) | 19.5” (495) | 29 (13.2) | 1.5” (38) | 10’ (254) | 2,700 | 73 | 3/4” | 3/4” (19) |
| JH40C1 | 7/8” x 3-1/4” | 2.63” (67) | 2.5” (63.5) | 22.5” (572) | 61 (27.7) | 2” (51) | 18’ (457) | 2,000 | 115 | 3/4” | 3/4” (19) |
| JH40C2 | 7/8” x 4-1/4” | 2.63” (67) | 2.5” (63.5) | 22.5” (572) | 61 (27.7) | 2” (51) | 18’ (457) | 2,000 | 115 | 3/4” | 3/4” (19) |
| JH40C3 | 1” x 4-1/4” | 2.63” (67) | 2.5” (63.5) | 22.5” (572) | 61 (27.7) | 2” (51) | 18’ (457) | 2,000 | 115 | 3/4” | 3/4” (19) |
| JRD50-A | 7/8” x 3-1/4” | 2” (51) | 3” (76) | 20.5” (521) | 51 (23) | 2” (51) | 16’ (406) | 2,300 | 120 | 3/4” | 3/4” (19) |
| JRD50-B | 7/8” x 4-1/4” | 2” (51) | 3” (76) | 20.5” (521) | 51 (23) | 2” (51) | 16’ (406) | 2,300 | 120 | 3/4” | 3/4” (19) |
| JRD50-C | 1” x 4-1/4” | 2” (51) | 3” (76) | 20.5” (521) | 51 (23) | 2” (51) | 16’ (406) | 2,300 | 120 | 3/4” | 3/4” (19) |
Looking for more information about Ingersoll Rand Air Rock Drill? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Construction Tools for your application, please call (800) 608-5210 or email info@intlairtool.com
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