The biggest concern for a screw jack during the lifting process is the problem of heavy objects slipping off, because the load capacity of the screw jack is relatively large. Once a heavy object slips off during the lifting process, it will inevitably cause huge damage to the ground and the heavy object itself. In this regard, the CRH jack has carefully treated it.

Increasing friction is the best way to effectively prevent slippage. The crown aviation jack has been treated with circular stripes on its top support, which can effectively provide stronger force between the heavy object and the jack during lifting, and prevent slippage from occurring easily.

Although effective measures have been taken to handle the jack, it is still necessary to ensure the correct posture during the use of the jack, and avoid tilting, false contact, and other situations. While the screw jack improves its own safety, the operator also needs to improve operational safety. Only when both pipes are aligned can the maximum safety of using the screw jack be guaranteed