Lotus FDD 350 Hammer
Design Highlights
- Hammer to Drill a hole of dia 90 – 115 mm (3 1/2”– 4 1/2”).
- Lotus _FDD350 is a valve type hammer designed for high performance at low operating air pressures
- DHD3.5 bit has a strong robust design to withstand heavy duty application
- Lotus _FDD350 Hammer maximizes energy output and reduces service requirements
- Wear sleeve is not reversible
- Single Start threads on Top sub and Drive sub ensure easy coupling/uncoupling of hammer.
- All critical internal components are heat treated under strict control to maximize tool longevity.
- An overall cost-effective and user friendly tool for use in the most demanding conditions.
Application: Construction & Quarry
| Size | NAME OF ITEM | QTY |
| 1 | TOP SUB (2 3/8” API REG PIN) | 1 NO |
| TOP SUB (5” API REG BOX) | 1 NO | |
| 2 | O RING FOR (TS, BV, BRR) | 3 NO |
| 3 | CHECK VALVE CAP | 1 NO |
| 4 | CHECK VALVE | 1 NO |
| 5 | SPRING | 1 NO |
| 6 | BUFFER RING | 1 NO |
| 7 | TOP SUB SPACER | 1 NO |
| 8 | TOP VALVE | 1 NO |
| 9 | O RING FOR TV, FV | 2 NO |
| 10 | FLAPPER VALVE | 1 NO |
| 11 | BOTTOM VALVE | 1 NO |
| 12 | LINER | 1 NO |
| 13 | WEAR SLEEVE | 1 NO |
| 14 | PISTON | 1 NO |
| 15 | PISTON RETAINER RING | 1 NO |
| 16 | BIT RETAINER RING | 1 NO |
| 17 | COPPER SHIM | 1 NO |
| 18 | DRIVER SUB | 1 NO |
| SERVICE KIT S.NO 2,3, 5, 6, 9 & 17 | 1 SET | |
| HAMMER ASSEMBLY | 1 NO | |
| HAMMER ASSEMBLY | 1 NO |
Hammer Specification
| S. NO | DESCRIPTION | UNIT | DIMENSIONS |
| 1 | HAMMER LENGTH W/O BIT | MM | 776.3 |
| 2 | HAMMER OUTSIDE DIA | MM | 78.0 |
| 3 | HAMMER WEIGHT | KG | 21.0 |
| 4 | CYLINDER BORE | MM | 63.0 |
| 5 | PISTON STROKE | MM | 80.0 |
| 6 | PISTON WEIGHT | KG | 4.0 |
| 7 | HOLE SIZES | MM | 90-115 |
| 8 | WRENCH SIZE A/F | MM | A/F 57.0 / W-40.0 |
| 9 | SUITABLE SHANK | — | DHD 350 |