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HDD
JDC55QL Hammer
* Design Highlights
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Hammer to Drill a hole of dia140 - 165 mm (5.5”- 6.5”).
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JDC55QL is a valve less type hammer designed for high performance at low operating air pressures.
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QL50bit has a strong robust design without foot valve to withstand heavy duty application.
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JDC55QL Hammer maximizes energy output and reduces service requirements.
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Wear Sleeve is reversible.
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Two Start threads on Top sub and Drive sub ensure easy coupling/uncoupling of hammer.
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All critical internal components are heat treated under strict control to maximize tool longevity.
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An overall cost-effective and user friendly tool for use in the most demanding conditions.
* JDC55QL HAMMER DEDICATED TOOL FOR 5.5” DRILLING
| S. No. | NAME OF ITEM | QTY | PART NO. |
|---|---|---|---|
| 1 | TOP SUB (3 1/2”API REG PIN) | 1 NO | 15-5C5500-31ARM |
| 2 | CHOKE (FULL/HALF/QUARTER) | 1 NO | 47-0127N/(A)(C)(D) |
| 3 | CHECK VALVE | 1 NO | 19-24101R |
| 4 | SPRING | 1 NO | 17-221017 |
| 5 | STEEL MAKEUP RING | 1 NO | M9-100705 |
| 6 | LOCK RING | 1 NO | 29-100712 |
| 7 | AIR DISTRIBUTOR | 1 NO | 12-5C5500 |
| 8 | “O” RING FOR AIR DISTRIBUTOR | 1 NO | 37-06803H |
| 9 | SEATING RING | 1 NO | 79-100910 |
| 10 | “O” RING FOR SEATING RING | 1 NO | 37-06002H |
| 11 | INNER CYLINDER | 1 NO | 42-5J5501 |
| 12 | PISTON | 1 NO | 52-5J5501 |
| 13 | WEAR SLEEVE | 1 NO | 45-5J5501 |
| 14 | PISTON RETAINER RING | 1 NO | 89-090429 |
| 15 | GUIDE BUSH | 1 NO | 65-5J5501 |
| 16 | “O” RING FOR GUIDE BUSH | 1 NO | 37-09003H |
| 17 | BIT RETAINER RING | 1 NO | 99-100716 |
| 18 | “O” RING FOR BIT RETAINER RING | 1 NO | 37-08402H |
| 19 | COPPER SHIM | 1 NO | 77-12101C |
| 20 | DRIVE SUB | 1 NO | 75-5C5500 |
| SERVICE KIT (S.NO:2,4,8,10,16&18) | 1 SET | 5J5500QLK | |
| HAMMER ASSEMBLY | 1 NO | 34-5J5501QL-31ARMR |
* HAMMER SPECIFICATIONS
| S. No. | DESCRIPTION | UNIT | DIMENSION |
|---|---|---|---|
| 1 | HAMMER LENGTH W/O BIT | mm | 1055.0 |
| 2 | HAMMER OUTSIDE DIA | mm | 124.0 |
| 3 | HAMMER WEIGHT | kg | 80.0 |
| 4 | CYLINDER BORE | mm | 99.75 |
| 5 | PISTON STROKE | mm | 80.0 (approx.) |
| 6 | PISTON WEIGHT | kg | 15.0 |
| 7 | HOLE SIZES | mm | 140-165 |
| 8 | WRENCH SIZE A/F | mm | A/F 90.0 / W-50.0 |
| 9 | SUITABLE SHANK | ----- | QL50 (WITH OUT FOOT VALVE) |
