BD547 Reverse Circulation Hammer
Compatibility: RE547, MR120, SR747
Black Diamond Drilling offers a complete range of reverse circulation hammers along with fully integrated R.C. Bits and Shrouds that have been designed to provide a world-class sampling system. Precision engineering enables our R.C. Hammers to excel in maintaining an efficient and smooth flow of drill cuttings to the surface, ensuring cleaner, more accurate samples. This leads to more reliable data for exploration and better overall hole quality.
| Item | Diameter Ø | |
| mm | inch | |
| BD547 Hammer | 124.4 | 4 7/8 |
| Bit | 133 - 146 | 5 1/4 - 5 3/4 |
| Suits medium to hard ground conditions | ||
BD547 RC Reverse Circulation Hammer Parts List
| Top Subs | Product Code | Description | Amount | Compatibility |
| A | Top Sub Assy Remet 4.5" | |||
| 1 | Circlip A | BD547-CIRCLIP-R4.5 | 1 | 41-D1300-0900 |
| 2 | O Ring (Adaptor Tube Remet 4.5") | BD547-SK-ASCREEN4.5 | 4 | 38-547-000 |
| 3 | Adaptor Tube Remet 4.5" | BD547-ASCREEN-R4.5 | 1 | 20-545-R45 |
| 4 | O Ring (Adaptor Tube) | BD547-SK-ASCREENMR | 2 | 38-547-000 |
| 5 | Top Sub Remet 4.5" | BD547-TSUB-R4.5 | 1 | 33-547-R45 |
| B | Top Sub Assy Metzke 4.5" | |||
| 1 | Circlip A | BD547-CIRCLIP-M4.5 | 1 | 41-D1300-0850 |
| 3 | Adaptor Tube Metzke 4.5 | BD547-ASCREEN-M4.5 | 1 | 20-545-M45 |
| 4 | O Ring (Adaptor Tube) | BD547-SK-ASCREENMR | 2 | 38-547-000 |
| 5 | Top Sub Metzke 4.5" | BD547-TSUB-M4.5 | 1 | 33-547-M45 |
| Hammer | Parts List | Description | Amount | Compatibility |
| 6 | Sample Tube | BD547-STUBE | 1 | 37-545-000 |
| 7 | O Ring (Sample Tube) | BD547-SK-TUBE | 4 | 38-547-000 |
| 8 | Circlip B | BD547-CIRCLIP-4 | 1 | 41-D1300-0850 |
| 9 | Air Screen | BD547-AIRSCREEN | 1 | 21-545-000 |
| 10 | Distributor | BD547-DIST | 1 | 29-545-000 |
| 11 | O Ring (Distributor) | BD547-SK-DIST | 2 | 38-547-000 |
| 12 | Check Valve/Plunger | BD547-CVALVE | 1 | 25-545-000 |
| 13 | Y Ring (Check Valve) | BD547-SK-CVALVE | 1 | 38-547-000 |
| 14 | Spring | BD547-SPRING | 1 | 22-545-000 |
| 15 | O Ring (Inner Cylinder) | BD547-SK-ICYL | 1 | 38-547-000 |
| 16 | Inner Cylinder/Top Barrrel | BD547-ICYL | 1 | 31-547-000 |
| 17 | Piston | BD547-PISTON | 1 | 36-547-000 |
| 18 | External Cylinder/Piston Case | BD547-ECYL | 1 | 35-547-000 |
| 19 | Bearing Bush | BD547-BUSH | 1 | 26-547-000 |
| 20 | O Ring (Bearing Bush) | BD547-SK-BUSH | 1 | 38-547-000 |
| 21 | Bush Retaining Ring | BD547-PRING | 1 | 23-547-000 |
| 22 | Bit Ring | BD547-SRING | 1 | 27-547-000 |
| 23 | O Ring (Bit Ring) | BD547-SK-RING | 1 | 38-547-000 |
| 24 | Shroud | BD547-SHROUD-127/125 | 1 | 40-547-501 |
| 25 | Drive Sub | BD547-DSUB | 1 | 16-547-000 |
| 26 | Drill Bit | BD547-133DC | 1 | 63-547-504CF |
| 27 | Seal Kit (Item 2+4+7+11+13+15+20+23) | BD545-SK | 1 | 38-547-000 |
Bit Selection Table
| Bit Product Code | Diameter | Compatibility | |
| Metric | Imperial | ||
| BD547-133DC-TPD | 133mm | 5 1/4" | 63-547-504HF |
| BD547-136DC-TPD | 136mm | 5 3/8" | 63-547-506DC |
| BD547-140DC-TPD | 140mm | 5 1/2" | 63-547-508DC |
| BD547-143DC-TPD | 143mm | 5 5/8" | 63-547-510CF |
Shroud Selection Table
| Shroud Product Code | Diameter | Compatibility | |
| Metric | Imperial | ||
| BD547-SHROUD-133/130.5-DB | 124mm | 4 7/8" | 40-547-503 |
| BD547-SHROUD-136/133.5-DB | 127mm | 5" | 40-547-505 |
| BD547-SHROUD-140/137.5-DB | 133mm | 5 1/4" | 40-547-507 |
| BD547-SHROUD-143/140.5/DB | 136mm | 5 11/32" | 40-547-509 |
| BD547-SHROUD-146/143.5-DB | 138mm | 5 7/16" | 40-547-511 |
General Specifications
| Description | Metric | Imperial |
| Piston Case OD | 124.4mm | 4 7/8" |
| Hammer Length | 1292mm | 4' 2 7/8" |
| Hammer Weight | 80.0 kg | 176lb 6oz |
| Bit Size Range | 133 - 146mm | 5 1/4 - 5 3/4" |
| Drill Rod Diameter | 114mm | 4 1/2" |
| Spanner Flat Width - Inner Cylinder | 51mm | 2" |
| Spanner Flat Width - Top Sub | 50mm | 2" |
Air Consumption
| Pressure | Consumption | ||
| psi | bar | cfm | m3/min |
| 400 | 27.6 | 850 | 24.0 |
| 450 | 31.1 | 925 | 25.1 |
| 500 | 34.5 | 1000 | 28.3 |
| 550 | 38.1 | 1050 | 29.8 |
| 600 | 41.4 | 1125 | 32.0 |