Standard-pin
tumbler system
Coded side bar
locking system
Drill-resistant
cylinder housing
ASSA
®
Twin V-10, Twin Exclusive and
Twin Pro High Security Cylinders
The ASSA T
e developed for a new
wer
technology. Most conventional
manipulated or defeated by for
marketed as “high security” have no patents
protecting the keys and/or cylinder and there-
fore, no method for key blank control. The
ASSA Twin family meets all of today’s
demanding requirements of high security
cylinders–uncompromising physical security
and patented key control.
Physical Security
All T
U.L. 437 standards, a set of tests for
determining the cylinder’s physical resist-
ance against various forms of attack. Two
independent locking mechanisms ensure
optimum pick resistance. Inactive “false”
grooves in the side pins catch the side bar
when improperly positioned. When rotational
force is appliedto pick the lock, the spooled driver pin tumblers, close tolerances, and countermilled pin chambers protect the cylinder from virtually every known picking method.
win family of cylinders and keyblanks
generation of lock
cylinders can be
ce. Many cylinders
win family cylinders are built to
Mushroom
driver pins
Side bar
Countermilling
Shear
line
Side bar
System
code
Drill-resistant
cylinder plug
No key inserted:
• Standard pins block the
shear line.
Side bar r
•
of cylinder housing,
blocking movement of
plug.
Correct ke
System code of key lifts
•
standard pins to shear line.
Side bar code of key lifts
•
side pins into a position
where the side bar can be
received. Side bar then
recesses into plug as key
is turned.
ests in gr
y inser
oove
ted:
Side bar
code
Large
key-bow
The ASSA Twin
family of cylinders
have also been
tested against pulling,
impressioning and
ts and
dened
stainless
win
Case-har
ying.
pr
steel inser
steel pins make the ASSA T
family of cylinders resistant to all
types of drilling attack.
Key Control
ecision crafted for the highest security
Pr
, the
ASSA Twin series key has two sets of bittings
(or key cuts) to
locking mechanisms.
operate independent double
Each key, reinforced to
help eliminate breakage, has a rounded back
for smooth operation and minimal wear.The
enlarged key bow accommodates use by
manually impaired people.
Patented in the U.S. and internationally, the
innovative ASSA key design eliminates
unauthorized key duplicatation and maintains
a key control system that is unmatched in the
industry. For local, regional or national key
ol, the ASSA T
contr
win family of cylinders
provide proprietary keyways for any facility.