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“DHJ” Mechanical and Hydraulic Shock Absorber
Model “DHJ” Mechanical and Hydraulic Shock Absorber is a two-action modern shock absorber. It absorb the shimmy and commotion of drill tools by compressing two kinds of damping spring devices ( dished spring and silicone oil ) to store the energy. And it has an advantage of well maintainable, bearing high load and long service life. Meanwhile, the Shock Absorber exist double rigidity in one absorbing stroke (initial low rigidity and subsequent high rigidity).Thus, it can meet a need of distinct layer fully and give a best protection to bits.
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