Dawson
HYDRAULIC 
HAMMERS
Innovative Piling Equipment
Some advantages of choosing Dawson Hydraulic Hammers:
Unrivalled production rates - rapid blow rates saves time and money, whole project is shortened- Rapid blow rates - 'chisel' through compacted sands, out driving much heavier slower hammers
- High energy transfer efficiency to the pile - smaller hammer outperforms older more cumbersome equipment
- Optimum energy output - potentially damaging high impact velocities are avoided by careful selection of ram mass; specially important with concrete piles
- Variable energy output - infinitely adjustable between min/max at the touch of the button, any time during the drive
- Blow control at the touch of a button - from single blows at the start of the drive to automatic blows for rest the operator has total control for a quality pile install
- Versatility - all hammers are designed to be truly multi-tasking so as to meet the demands of the modern contractor
- All hydraulic operation - the absence of electronic components produces simple and reliable functionality
- Compact enclosed design - simplifies application and handling whilst protecting vital components
- Simple integration with alternative power sources - can be operated from hydraulic excavators, hydraulic crawler cranes or non-Dawson hydraulic power packs.
Technical Specifications of Dawson Hydraulic Hammer Product Range
| Specification | Units | HPH1200 | HPH1800 | HPH2400 | HPH4500 | HPH6500 | HPH10K | HPH12K | HPH15K |
|---|---|---|---|---|---|---|---|---|---|
| Ram weight | kg | 1,040 | 1,500 | 1,900 | 3,500 | 4,650 | 8,000 | 10,000 | 12,000 |
| Impact velocity | m/s | 4.76 | 4.99 | 4.98 | 5.05 | 5.25 | 5.00 | 5.00 | 5.00 |
| Maximum Pile Energy | kg.m | 1,200 | 1,900 | 2,400 | 4,500 | 6,500 | 10,000 | 12,000 | 15,000 |
| Maximum momentum | kg.m/s | 4,950 | 7,485 | 9,462 | 17,675 | 24,413 | 40,000 | 50,000 | 60,000 |
| Blow rate | bpm | 80-120 | 80-120 | 80 - 120 | 80 - 120 | 80 - 120 | 80 - 120 | 80 - 120 | 80 - 120 |
| Length - lead mounted | mm | 3,800 | 3,930 | 4,430 | 4,650 | 5,350 | 6,500 | 6,500 | 6,500 |
| Length - free hanging w/legs | mm | 4,670 | 5,050 | 5,300 | 5,500 | 6,458 | - | - | - |
| Length - free hanging w/guide | mm | - | - | - | 5,597 | 6,310 | 7,500 | 7,500 | 7,500 |
| Weight - lead mounted | kg | 3,000 | 4,250 | 6,000 | 8,500 | 10,400 | 15,000 | 17,000 | 19,000 |
| Weight - free hanging w/legs | kg | 3,000 | 4,250 | 6,000 | 10,750 | 14,600 | - | - | - |
| Weight - free hanging w/guide | kg | - | - | - | 10,000 | 13,500 | 23,000 | 25,000 | 27,000 |
| Weight - ram removed for transport | kg | - | - | - | - | - | 11,000 | 13,000 | 15,000 |
| Power Pack | |||||||||
| Diesel engine power | kW hp | 40 54 | 50 67 | 68 90 | 129 173 | 150 200 | 400 536 | 400 536 | 400 536 |
| Hyd system pressure | bar psi | 230 3,300 | 230 3,300 | 230 3,300 | 255 3,700 | 260 3,800 | 180 2,610 | 220 3,190 | 260 3,770 |
| Oil flow rate | l/min gpm | 75 20 | 105 28 | 150 40 | 230 61 | 260 69 | 750 200 | 750 200 | 750 200 |
