Fly Press :
[1] It is simplest type of all presses, called as hand press / ball press/single side fly press.
[2] It consists of robust cast iron frame. Top portion of frame forms the nut.
[3] Vertical screw which can go through the nut. Screw carries an arm.
[4] Arm supports two cast iron weights (balls) at two ends. Handle used for rotating the arm.
[5] Frame extended below the nut to form guides. Ram attached at the bottom of the screw.
[6] Ram carries punch at its bottom. Die is fixed at the press base.
[7] Sheet metal placed over the die. Arm gets quick rotation with the help of handle.
[9] Heavy balls stores kinetic energy for long time movement of screw. Movement of screw causes movement of ram & punch downwards.
[11] Stroke of the collar adjusted with help of Stop Collar / Arrestor. Advance type of fly press is double side Press.