STZZ is a general equipment used to collect deep undisturbed sediment samples in oceans, harbors, lakes and other waters. Have negative pressure generation device, effectively improve the sampling depth, have low perturbation penetration sealing device, ensure the sample validity. During the sampling operation of the long column sampler, it is necessary to place the support frame (usually placed along the ship's side), side port frame, sampling winch, tilting arm, auxiliary winch, auxiliary rocker crane and other auxiliary equipment.