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It can drive not only clamped pile but also top-stroke pile or adopt the combination of the two methods mentioned above.This feature is applicable for square pile, thick or thin tube pile and some special shaped piles like H-shaped pile.It has gained national invention patent.Patent number:ZL02139875.5. The unique original structure design of lifting leg has changed the supporter of radial force from the lifting cylinder fo pile drver druing longitudinal traveling.By this way,it is possible to avoid the damage of the lifting cylinder rod and the guide thimble,reflecting on counter-pull,no-impulsion and weariness-resistant.It has gained national invention patent.Patent number:ZL01249443.7
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