Unlike traditional gas Wells, the hollow shaft has no internal trachea, so there will be no sudden puncture accidents during operation. In addition, the use of solid shaft construction allows for minimal bending even with the use of long shafts, and continuous long lugs have the characteristic of securely securing the workpiece in any position.
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Detail
Long lugs integrated with elastic seals with trapezoidal cross sections at the bottom are mechanisms that expand and contract to the outer circumference of the shaft by introducing compressed air to the bottom of the seal. In addition, if air is released, the long lugs will return inside the shaft and be buried due to the self-restoring force of the elastic seals.
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