1400mm hammer grab 1400mm pile hammer grab used for cased bored pile foundation work
1350mm hammer grab 1350mm pile hammer grab used inside 1500/1400mm double casing for cased bored pile foundation work
1300mm pile hammer grab used for bored pile foundation work for hard soil conditions
1200mm bored pile grab used for hard soil conditions
1100mm hammer grab , pile hammer grab used for cased bored pile foundation work for hard soil conditions work
850mm pile hammer grab used for cased bored pile foundation work for hard soil conditions

The hammer grab is the most important tool in pile construction and it determines the drilling process,tianjin huachang xingye technology co ltd hammer grab combines the advantages of a number of good hammer grab 
combines the advantages of a number of good hammer grabs and, due to its
of top class.
These are essential advantages:
The grab has no wear-prone cable pulleys.
The closing force is produced by a scissor system which is insensitive to wear and dirt 
There is no closing cable subject to frequent replacement inside the grab.
Opening of the jaws is assisted by a pretensioned spring, so that adhesive
Soils are dumped by forcefully striking open the jaw 
The body of the grab is streamlined, which ensures a high fall velocity under water
 Additional side pockets on the grab's lower part increase the filing capacity of jaws in soft soil
The entire construction is stress relieved and extremely strong.
Hammer grab the double rope operation as well as single rope operation are quick ,reliable and highly economical 
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