Undercut Anchor System
Unique and reliable undercut anchor system.
Easy and reliable installation.
Install an anchor
▼
▼
▼
Undercut
▼
Drill a primary hole
Certified ISO9001/14001
Undercut Anchor System
Best for
Concrete
High reliability and
superior workability
due to mechanical interlock.
Setting tool
Anchor bolt
Undercut gauge
Undercutter
Perpendicular gauge
Primary hole bit
Installed anchor
Perpendicular guide
Features
Total post-installed anchor system for secure anchor work.
Using our specialized Undercutter enables to undercut with
easy and reliable operation.
Prevent anchor bolt from slip by mechanical interlock.
Large contact surface at the undercut area ensures secure
anchoring even in low-strength concrete.(Even if the cracks
occur on the concrete around working area,reduction in
anchoring performance is minimalized)
The embedment depth of anchor bolt is designed to bear the
characteristic steel yield strength. Anchor bolt can be
designed with “steel failure”.
Anchor bolt materials : grade 4.6 / grade 8.8 / SUS316
For use in
Undercutter
Bow jaw
Body
Stopper
sleeve
Various anchor works.
Specification
See specification of ANZEX bolts. (P5)
Cutter blade
Pin
Spring
Lock release
screw
Shank
1
Po
Key int
1
Make a conical hole in the primary hole.
Undercutter expands the bottom of primary hole in conical shape.
Undercut part realizes a safe and secure anchoring.
Undercut hole
Drilled a primary hole
1. Insert an undercutter until it reachs the bottom of the primary hole.
2. Once the drilling machine is started,the cutter blade is expanded.
3. Undercutter makes a conical hole in the primary hole.
Po
Key int
2
Reliable anchoring by mechanical interlock.
Mechanical interlock without pulling out and slipping. Bearing force ensures the support of the load.
Undercut anchor
Expansion anchor
Concrete
Principle of anchoring
Anchor is firmly fixed to
the undercut hole .
(Mechanical interlock)
Concrete
Bonded anchor
Concrete
Bond
Bearing force
Anchor rod
Friction force
Wedge effect
Concrete surface
Bearing force
Bonded force
Load
Load
Load
Po
Key int
3 “Visual confirmation”realizes reliable installation.
Each step of anchor installation can be visually confirmed with using our specialized tools.
Visual confirmation ensures reliable installation.
Drill a primary hole
Confirm the
perpendicular position
Undercut
Confirm undercut
Install an anchor
Fixing
2
Realize the reliable anchor installation with unique ANZEX Anchor System.
Efficient installation in non-cracked and cracked concrete and the tension
area where tensile load is always applied.
Setting tool
Anchor bolt
Undercut gauge
Reliable anchor installation by mechanical interlock.
Reliable operation (visual control) with using our specialized ANZEX tools.
Secure installed anchor in concrete ensures high reliaility.
Undercutter
Perpendicular gauge
Primary hole bit
Installation Procedure (You can visually confirm each process)
1
2
Drill a primary hole
Clean the hole
Drill a hole in proper depth with our Clean the hole using a blow-out
“Primary hole bit with stopper” .
bulb or compressed air.
3
4
Confirm the
perpendicular position Undercut
Confirm less than ±5 degrees.
Undercut with undercutter.
5
6
Clean the hole
Confirm undercut
Confirm undercut.
Key
point!!
7
8
Install an anchor bolt Fixing
Anchor bolt is expanded with
setting tool.
Complete all process after
tightening nuts.
▼
Working image diagram
▼
(White line)
Confirm the
depth
Red line
Depth-guide
stopper
Perpendicular
guide
Cutter blade is
expanded and
undercut.
Undercut ensures
mechanical
interlock.
(White line)
Confirm
perpendicularity
Visual check
Confirm the drilled depth and
perpendicularity with white line
of perpendicular gauge.
When the stopper of primary hole
bit contacts a perpendicular guide
(or the surface of concrete),
the process is completed.
・Primary hole bit
・Perpendicular guide
Features
3
Installed anchor
Perpendicular guide
Once the gap of Undercut
gauge is closed,undercut is
completed.
Undercut is completed when the
gap is closed.
・A blow-out bulb or
compressed air
Confirm the undercut
・A blow-out bulb or ・Undercut gauge
compressed air
・Perpendicular gauge
・A protractor
・Undercutter
Primary hole bit
Perpendicular gauge
Undercutter
The stopper enables to drill a
hole in proper depth.
Measure the perpendicularity
of the drilled hole.
The cutter blade is expanded
and undercut.
The completion of undercut
process is visually confirmed.
*Make sure to use our
“Primary hole bit” .
Confirm the depth of the
primary hole.
Undercut process can be
completed in a short time.
Cutter blade is easily
interchageable.
Undercut gauge
Undercut can be visually
confirmed with using gauge.
Once the red line of anchor
bolt apears,the bolt is
properly installed.
(Once the bolt is installed
completely,the hammering
sound is changed.)
・Setting tool
・Anchor bolt
・Nuts
・Washer
・ Torque wrench
Setting tool
Anchor bolt
The undercut anchor bolt
is installed with using our
original setting tool.
Interlocked mechanically
by applying proper
torque.
Few stress to concrete.
4
Specification of ANZEX anchor bolts
AZ46 (grade 4.6) AZ88 (grade 8.8)
Expander sleeve
AZA4 (SUS316)
Anti-drop ring
(AZ46:Orange AZ88:Green AZA4:Blue)
Conical bolt
Protect cap
Def
Hard lock nut
hef
Tread (pitch)
Coating
Zinc coating(hot dip garvanized)
Part No.
AZM12P AZM16P AZM20P AZM24P
46H225 46H305 46H360 46H440
Effective anchorage depth
Unit
90
123
153
184
Maximum thickness of fixture
25
30
40
50
Diameter of clearance hole in the fixture
14
18
22
26
22.5
30.5
36.0
44.0
hef
Drill hole diameter
Drilled hole depth
Zinc coating(electroplated)
No coating
96
131
162
195
100.8
137.5
170.1
204.5
Def
31.5
42.3
49.3
59.2
150
200
250
300
As
84.3
157
245
353
Characteristic steel uitimate tensile strength fuk
400
400
400
400
Characteristic steel yield strength
240
240
240
240
210
210
210
210
33.7
62.8
98.0
141.2
42.2
78.5
122.5
176.5
Deepest drilled hole depth
Expanded diameter
Minimum thickness of concrete member
Effective sectional area of thread
fyk
Minimum tensile load
145.8
204.5
257.1
305.5
113.8
154.5
193.1
230.5
170
230
290
350
Tool list
Primary hole bit with perpendicular guide
Primary hole bit
PH225
PH305
101MAX 138MAX
PH225
101HEX
PH225
PH225
PH305
PH305
PH440 146MAX 205MAX PH360
PH440 114MAX 155MAX PH360
PH440
PH360
205MAX
306MAX
231MAX
PH225
PH225
PH305 171MAX
PH305 258MAX
PH305 194MAX
146HEX 205HEX
114HEX 155HEX
138HEX
UC305MAX
UC305MAX
UC305MAX
Undercutter
UC225SDS
Mechanical setting tool
STMAXM12 STMAXM16 STMAXM20 STMAXM24 STMAXM12 STMAXM16 STMAXM20 STMAXM24 STMAXM12 STMAXM16 STMAXM20 STMAXM24
Setting tool ( hand-operated )
Perpendicular guide
Perpendicular gauge
Undercut gauge
Cutter blade
5
PHG225 PHG305
PHG225 PHG305
PHG225 PHG305
101MAX 138MAX PHG360 PHG440 146MAX 205MAX PHG360 PHG440 114MAX 155MAX PHG360 PHG440
171MAX 205MAX
258MAX 306MAX
194MAX 231MAX
PHG225 PHG305
PHG225 PHG305
PHG225 PHG305
101HEX 138HEX
146HEX 205HEX
114HEX 155HEX
UC305HEX
UC360MAX UC440MAX UC225SDS
UC305HEX
UC360MAX UC440MAX UC225SDS
UC305HEX
UC360MAX UC440MAX
STHEXM12 STHEXM16 STHEXM20 STHEXM24 STHEXM12 STHEXM16 STHEXM20 STHEXM24 STHEXM12 STHEXM16 STHEXM20 STHEXM24
STM12
STM16
STM20
STM24
STM12
STM16
STM20
STM24
STM12
STM16
STM20
STM24
PG225
PG305V
PG360V
PG440V
PG225
PG305V
PG360V
PG440V
PG225
PG305V
PG360V
PG440V
VG46225 VG46305 VG46360 VG46440 VG88225 VG88305 VG88360 VG88440 VGA4225 VGA4305 VGA4360 VGA4440
GE225
GE305
GE360
GE440
GE225
GE305
GE360
GE440
GE225
GE305
GE360
GE440
BL225
BL305
BL360
BL440
BL225
BL305
BL360
BL440
BL225
BL305
BL360
BL440
Fix material after curing time
1.5d
Undercut anchor
with resin/mortar (A)
Bonded anchor
with undercut (B)
6
2378516MI