Page 197 - Catalogue 2019

QUALITY FEATURES

PNEUMATIC ACTUATOR

SPRING UNITS
Single-acting actuators are CYLINDER
equipped with two spring The piston bearing surface
cups, so that the actuator of the cylinder tube is SHAFT BEARING
can clearly be recognised as precisely machined and
single-acting. Six different anodised. The result: The multiple shaft bearing
spring untis are available, good wear resistance and reduces friction losses to a
depending on the actuator consistently high efficiency minimum and guarantees high
size. The springs are in continuous operation. efficiency.
prestressed, allowing the PISTON GUIDE
spring units to be replaced Sliding pads and piston
safely and easily. rings made of UHMWPE
ensure low-friction piston SCOTCH YOKE CONCEPT
guidance and prevent The structurally-dependent lever
metallic contact between action is optimally matched to
piston and cylinder. the torque curve.

NAMUR CONNECTION
BLOCK
The NAMUR connection
block can be rotated by
180° in order to change the
function of the solenoid valve PINNED DOUBLE YOKE
from “Normally closed“ to
“Normally open“. The pinned fitting of the double
yoke guarantees backlash-free
force transmission and protects
CORROSION-RESISTANT ADJUSTABLE
SCREW CONNECTIONS the shaft from blow-out. LIMIT STOPS
All screw connections are stainless The piston limit stop
steel, thus guaranteeing corrosion can be adjusted very
protection and safe connection even precisely within a range
with aggressive recirculating air. of ±3°.