RC Reverse Circulation Hammers and Bits
Selecting the Right RC Hammer
Black Diamond’s reverse circulation hammers and bits are specifically designed for all kinds of exploration drilling (deep hole and in-pit grade control applications). Whether you are exploring potential sites or working an existing mine, the BDDRILL RC hammer will guarantee high performance, exceptional reliability and dependable support.
Reverse Circulation Hammer Specifications Chart
| Hammer | BD351 | RC3.5 | BD004 | BD542 | BD543 | BD545 | BD040 | BD52 | BD54 | A67 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Top sub thread | R3" | R3" | R3.5" | R4" | M4" | R3.5" | R4" | M4" | R4" | M4" | M4.5" | R4.5" | M4" | R4" | M4.5" | R4.5" | M4.5" | R4.5" | M4.5" | R4.5" | M4.5" |
| Package case size, mm | (L)1100 (W)110 (H)120 | (L)1230 (W)120 (H)150 | (L)1300 (W)150 (H)180 | (L)1230 (W)140 (H)170 | (L)1260 (W)150 (H)180 | (L)1300 (W)150 (H)180 | (L)1300 (W)160 (H)190 | (L)1300 (W)160 (H)190 | (L)1330 (W)160 (H)190 |
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| Recommended bit size, mm | 86-100 | 100-110 | 111-125 | 113-133 | 123-140 | 127-140 | 133-143 | 136-146 | 136-146 | ||||||||||||
| Bit shank | RE351 | RC3.5 | RE004 | RE542 | RE543 | RE545 | RE040 | PR52 | PR54 | BD67 | |||||||||||
| External diameter, mm | 81 | 94 | 107 | 109.5 | 116 | 117.5 | 121 | 120.5 | 130 | 132 | |||||||||||
| Length excl. thread, mm (Less bit) | 1069 | 1184 | 1252 | 1191 | 1261 | 1210 | 1227 | 1294 | 1200 | ||||||||||||
| Hammer weight, kg (Less bit) | 29 | 44 | 52 | 57 | 63 | 65 | 53.8 | 47.5 | 69.4 | 69.4 | 68.5 | 84.5 | 81.8 | ||||||||
| Piston weight, kg | 4.8 | 8.3 | 10.5 | 11.6 | 11.6 | 13.5 | 13.6 | 14.3 | 17 | 17 | |||||||||||
| Wrench flat, mm | No Wrench Flat | (L)82 (W)40 | (L)90 (W)45 | (L)90 (W)45 | (L)90 (W)45 | (L)95 (W)45 | (L)95 (W)45 | (L)95 (W)50 | (L)95 (W)45 | (L)95 (W)50 | (L)102 (W)50 | (L)102 (W)50 | (L)94 (W)50 | (L)94 (W)50 | (L)94 (W)50 | (L)94 (W)50 | (L)94 (W)50 | (L)94 (W)50 | (L)100 (W)50 | (L)100 (W)50 | (L)95 (W)51 |
| Drilling conditions and project specifications may require larger air packages to be used | |||||||||||||||||||||
Reverse Circulation Hammer Service Guide
When breaking a Hammer down, avoid placing breakout tools in the mid section of the cylinder (barrel). Recommended breakout points are 130mm from each end of the cylinder. Wrap around chain type breakouts are recommended (see diagram). When holding bits for breakout, use a secure plate or pot to grab the bit head, but never on the gauge row buttons.
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Reverse Circulation Hammer Product Codes Guide
Product codes are a valuable tool to describe and identify the product. In the code structure we have tried to describe the product features with an alphanumeric system and not always 100% logical, but with the attached key you will be able to find the product you are looking for or alternative products.
Reverse Circulation Hammer Air Consumption and Operating Pressure Guide
RC Reverse Circulation Hammers Product List
RC Reverse Circulation Drill Bits
RC Reverse Circulation Drill String Information
Black Diamond Drilling offers a complete range of reverse circulation rock drilling tools. The drill string equipment is designed specifically for greenfield exploration and in-pit grade control.
Remet RC Reverse Circulation Drill String Information
Metzke RC Reverse Circulation Drill String Information
Constant Hammer Shank - Model 543-4M
Constant Hammer shanks or ‘Rattler Bits’ are used in a hammer in place of a standard drill bit and allow the piston to continuously cycle when the air is turned on.
They are typically used when a hammer and drill string is too bogged to rattle the drill string.