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Successful Commissioning of China First Self-developed HHP35 Hydraulic Impact Hammer

The China first self-developed HHP35 hydraulic impact hammer with strike energy of 525KJ is updated from the hammer with 300KJ strike energy. It, manufactured by Liyuan, is the domestic self-developed piling mechanism with biggest strike energy.

The commissioning project is Jiuzhou Channel Bridge with the sail design which is one of three main bridges of Hong Kong-Zhuhai-Macau Bridge. The steel pipe pile comes with the diameter of 2500mm and length of 67meters. The piling depth is of up to 62 meters. (The depth refers to the distance between the sea level and strongly weathered rock.) The construction site belongs to the Chinese white dolphin's habitat, thus our construction equipment must be characterized by low noise, low vibration, and zero pollution. It follows that this commissioning project is such a big challenge.

On January 3, 2013, Liyuan HHP35 hydraulic impact hammer (525KJ) successfully drove a 67m steel pipe into water to the design depth with the strike of 1300 times. This process takes about 50 minutes in total. This successful commissioning shows that our company fills the domestic blank in this area.

Currently, as the operator reports on the construction site, the operating status of hydraulic piling achieves a good result. Three steel pipes will be installed per day, completely exceeding the construction volume what users expected.

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Starke is a specialized hydraulic impact hammer, diesel pile hammer manufacturer and supplier in China. We offer a variety of products, including hydraulic vibratory hammer, crawler piling rig, bored rotary drilling rig, hydraulic pile driving rig, etc.

Main Products
  • Hydraulic Vibratory HammerHydraulic vibratory hammer is a pile driver and extractor widely used in all kinds of foundation construction engineering. It liquefies the soil around the pile by periodic excitation force, thus reducing the friction between pile and soil. The pile is plunged into the soil by its own weight and the hammer weight...
  • Bored Rotary Drilling Rig Bored rotary drilling rig is used in bored piling. It consists of piling rig, concrete injection-molding system and power head, and long spiral drilling stem. Its inclined strut adjustment, pile frame revolution and movement functions are all controlled by hydraulic system...