636 / 1618
3/114
Clamping
Systems
3
Design:
With cylindrical shank to
DIN 1835 B+E.
Scope of delivery:
Tapping chuck with clamping
nut ST-GB.
Note:
Tightening occurs by means of roller spanner
(Order No. 3657 on
Ç
3/76). Suitable collets can
be found on
Ç
3/102.
Order
No.
For taps
1871
Mounting shank ∅
mm
Outer ∅ D
mm
Projection length A
mm
Collet
1100
M3 - M12
270.00
25
30
58
GERC16
1110
M3 - M20
278.00
25
40
65
GERC25
1120
M4 - M27
323.00
25
50
87
GERC32
1130
M4 - M33
323.00
32
63
109
GERC40
(W181)
Tapping chuck with minimum length compensation SYNCHRO T
Tapping chuck with minimum length compensation SYNCHRO T
Order
No.
For taps
1871
SK
Outer ∅ D
mm
Projection length A
mm
Collet
1140
M3 - M12
414.00
40
30
79
GERC16
1150
M3 - M20
424.00
40
40
84
GERC25
1160
M4 - M27
424.00
40
50
95
GERC32
1170
M4 - M33
424.00
40
63
105
GERC40
(W181)
Design:
With steep taper shank in line with
DIN 69871,
Form AD/B.
Balancing quality:
G6.3 12000 min
-1
.
Scope of delivery:
Tapping chuck with clamping nut
ST-GB.
Note:
Tightening occurs by means of roller spanner
(Order No. 3657 on
Ç
3/76). Suitable collets can be
found on
Ç
3/102.
Design:
With steep taper shank in line with
JIS B 6339
(MAS-BT), Form AD/B.
Balancing quality:
G6.3 12000 min
-1
.
Scope of delivery:
Tapping chuck with clamping nut
ST-GB.
Note:
Tightening occurs by means of roller spanner
(Order No. 3657 on
Ç
3/76). Suitable collets can be
found on
Ç
3/102.
Order
No.
For taps
1871
BT
Outer ∅ D
mm
Projection length A
mm
Collet
1180
M3 - M12
414.00
40
30
84
GERC16
1190
M3 - M20
424.00
40
40
89
GERC25
1200
M4 - M27
422.40
40
50
110
GERC32
1210
M4 - M33
424.00
40
63
115
GERC40
(W181)
Tapping chuck with minimum length compensation SYNCHRO T
Tapping chuck with minimum length compensation SYNCHRO T
The feed axis is synchronised with spindle rotary movement on
CNC machining centres. This means that threads with tool mounts
without length compensation can be cut (“rigid tapping”) with these
synchronised spindles. Practice, however, has shown that there are
synchronisation faults. High axial forces reducing the service life by
high flange friction develop as a result when rigid tapping chucks
are being used leading to threads which are not true to gauge size
or result in inaccurate threads. This problem is eliminated using
tapping chucks with minimum length compensation.
SYNCHRO T tapping chucks technical features:
• minimum length compensation on tension/compression (±0.5 mm)
• high radial rigidity due to double bearing
• high concentricity
• high clamping force through clamping using collet
chuck taps with female square
• separate compression/tension mechanism
• defined, adjustable compression/tension forces
• compact, wear-free design
• long service life
• internal coolant supply
• no clamping nuts with sealing discs necessary when using
coolants, because the FAHRION tapping collets GERC-GBD
are delivered with sealing plugs (usable up to 120 bar).
• minimum quantity lubrication (MQL) possible upon request
DIN
1835
B+E
Form
AD
DIN
69871
Form
AD/B
B
JIS
6339
MAS/BT
Form
AD/B
R
R
R
Tapping chuck
636