A review on the physiology of Insulin like Growth Factor-I (IGF-I) ... by Debnath, Surajit / Advances in Environmental Biology.
The spring piston airgun generates power using a powerful spring-loaded piston that is housed within a compression chamber. Cocking the gun (using a break barrel, side lever, or under lever mechanism) causes the piston assembly to compress the spring. When the spring is released it pushes the piston forward compressing a column of air in the chamber behind the pellet.
The corresponding pressure values can be seen in the spreadsheet. In ZSF series spring clamping cylinders, a mandrel or a tie rod is threaded down and secured in the draw pistonâs thread hole (available on request as single piece or with special thread). The draw piston is protected against incorrect installation with a pin connection.