1000mm hammer grab  used with hydraulic casing oscillator for pile foundation work 
1000mm pile hammer grab used inside of od1200/id1120mm double wall casing for hard soil conditions
800mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
600mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
1200mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
1500mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
1800mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
2000mm hammer grab , pile hammer grab , pile grab used for hard soil conditions for pile foundation work
We produce several models of hammer grab for crane lifting used for cased and uncased borehole, our hammer grab have single rope type hammer grab ,and double rope hammer grab
We have different type hammer grab used for different type job
Double rope hammer grab with high close force suitable for vibration free boring in semi hard and hard soil conditions
Hammer grab with high clamping force, particularly suitable for drilling of holes in rocky soils and for working under water load
NO.     SIZE     D     L    (kg)    PULLEY NUMBER    CAPACITY L
1    750    750    4000    2800    5    120
2    1000    1000    4700    4500    5    450

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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