The company reserves the right to vary models and dimensions without notice.
These products are designed for industrial applications and are not suitable for sale to the general public.
Rodless and Guided/Twin-Bore Cylinders
4
NORTH AMERICAN CYLINDER & ACTUATOR CATALOG
>
Release 8.5
RODLESS AND GUIDED/TWIN-BORE CYLINDERS
237
Cylinders with Integrated Guide
Series QCTF and QCBF
Double-acting, magnetic piston, with double bearings and flanges
ø 20, 25, 32, 40
These cylinders have been designed to be used in applications where space is limited.
Regarding the bearings, the Slide Units are available in two versions, one with double
sintered bronze bushings (Mod. QCTF) and the other with double linear ball bearings
(
Mod. QCBF). The QCTF version would normally be selected when the side loads applied
to the slide unit are high. Mod. QCBF is suitable for fast cycles (less side load) and higher
precision.
The end cushioning is available in three
different variants:
A. fixed mechanical cushion (standard)
B. with two shock absorbers located on the
body
C. with one shock absorber located central
on the rear flange.
The versions B and C are suitable for
handling of higher mass forces and / or
when it is necessary to adjust the stroke.
GENERAL DATA
»
»
Magnetic sensors can be
mounted on both sides
»
»
QCBF: ball bearing guide
»
»
QCTF: bronze bushings
»
»
Movement and
guidance in one unit
Type of construction
compact guided with extended guide rods and double bearings/flanges
QCTF = sintered bronze bushings
QCBF = linear ball bearings
Operation
double-acting
Materials
body = anodized AL
flanges = zinc-plated steel
piston rod = rolled stainless steel AISI 303
QCTF columns = rolled stainless steel 420B
QCBF columns = hardened carbon steel C50
seals = PU
Mounting
threaded and non threaded holes in the body
Strokes min. max
(
see table)
Operating temperature
0
°C – 80°C (32 - 176°F, with dry air -4°F)
(
with dry air -20°C)
Speed
50 – 500
mm/s
Stroke end cushioning Type A extended stroke - fixed mechanical cushioning
retracted stroke - fixed mechanical cushioning
we recommend preventing the piston from striking against the end covers
Stroke end cushioning Type B extended stroke - shock absorber
retracted stroke - shock absorber
Stroke end cushioning Type C extended stroke - shock absorber
retracted stroke - fixed mechanical cushioning
we recommend preventing the piston from striking against the end covers
Operating pressure
1 – 10
bar (14 - 145 psi)
Fluid
clean air, non lubricated. If lubricated air is used, it is recommended to use oil ISOVG32. Once applied the lubrication
should never be interrupted.
