User manual

Design and function
10
4 Design and function
1
Quick air-exhaust valve
2
Silencer
3
Springs
4
Piston
5
Flange
6
Impact plate
p Compressed air
F Impact force
The PKL is a pneumatic „hammer“. Compressed air (p) goes under the
piston (4) and presses it against one or two springs (3).
When exhausting, the air chamber beneath the piston empties abruptly via
the quick air-exhaust valve (1).
The piston (4) (hammer) is struck by the spring force against an impact
plate (6), which then passes the impact force (F) on. For PKL without an
impact plate (PKL 190, PKL 450 and PKL 740), the piston strikes directly
against the fastening surface. The impact plate in the standard types (PKL
2100, PKL 5000 and PKL 10000) is always made of steel and can also be
replaced by an elastomer impact plate, if necessary.
The air escapes via the silencer (2).
The PKL only work when mounted, as the piston chamber is then sealed
by a built-in O-ring in the mounting surface.
A quick-air exhaust valve and a 3/2-way valve are integrated in the valve
head of the PKL 740. Therefore, the control valve on the customer's site
can be mounted at any distance away from the PKL 740.
The control air must be connected at the side. A silencer is mounted on
the exhaust air outlet.
The ST kit allows a continuous impact sequence with permanent com-
pressed air supply.
The EE kit reduces the noise level and generates a rubber hammer effect.
Design
Function
Features of
PKL 740
ST kit
EE kit