Advantages of the Dawson HPH Hammer Range
HPH Hydraulic Hammers:Overview
Product Specifications
The Principal Advantages of the Dawson HPH Hammer range -
Rapid action from the double acting hydraulic system
Reduces driving time thus increases productivity and profitability. High blow rates are also more effective in dense granular materials.
High energy transfer efficiency into the pile
This combined with optimisation of hammer weight produces a range of hammers with high power to weight ratios.
Precise blow by blow control of hammer energy
Output from single blows at the start of pile driving to maximum energy output on automatic operation at final drive. No more soft drive starting problems as are typical with all diesel hammers.
Ability to drive all pile types
Vertical or raking, free hanging or leader mounted. In the case of raking piles with minimal energy loss with rakes of up to 1:1 thanks to the double acting design of the hammer.
Fully enclosed hammer design
Permits the hammer to pile underwater sitting directly on the pile without the need to use a pile follower or dolly pile. A simple compressor and an underwater kit are all that are required.
Single sheet pile driving
Concentrates the hammer energy to give a powerful drive capability without massive weight.
Reduced ground vibration has been experienced through single pile driving
By driving the minimum area of sheet pile the minimum volume of soil is agitated.
All functions are hydraulic
There are no electrical components on the hammer.
Low hydraulic power requirement
The hammers can be readily run from numerous hydraulic power sources e.g. vibrator power pack, excavator, crawler crane etc.
Enclosed slender design
Protects sensitive components and simplifies use by the site crew.
One standard insert configuration
Fits a huge variety of sheet and H-pile types reducing the material and time penalties for changing parts for different profiles, a typical problem in most hammers.
The hammers have been designed with versatility in mind
All hammers can be readily applied to the vast majority of pile driving situations - in some cases with the addition of some simple components.
