ZKN TAP COLLET (JIS)
High Accuracy, Quick Response and Long Tap Life. Rotary Bearing Cam Mechanism NIKKEN ZKG Tap Collet can be used with the all NIKKEN flaoting Tapper Chucks. The torque of CCW is 1.4 times of the torque of CW to prevent the problem of the swarf. The setting torque can be adjusted.
ZKN Tap Collet
Rotary Bearing Cam
Safe Torque Setting Nut
New Tap Clamp System
Rotary Taper Cone
All size for ZKN8 Larger equal to ZKN38-27 All size of ZKN65
Smaller equal to ZKG38-24
H
H
Spring
H 1
H 1
φ D 5
φ D 3
φD 5 φD 4
φD 3
ℓ
ℓ
Fig. 1
Fig. 2
: The tap collet fot the unified thread is also available. (U,W) 1 3 /8 , 1 1 /2 , 1 5 /8 , 1 3 /4 , 1 7 /8 , 2, 2 1 /4 , 2 1 /2 , 2 3 /4 , 3, 3 1 /4 , 3 1 /2 , 3 3 /4
ZKN 65
ZKN38
ZKN65
ZKN8
M18 ～ 24 M27 ～ 36 M36 ～ 65 M68 ～ 100
D 3 D 4
23
78
110
125
－
－ － －
56
ZKN8 is semi-standard.
ZKN 8
ZKN38
ZKN65
ℓ 50 55 56 64 66 73
ℓ 117 121 130 133 142 145 153 161 121 122 130 138 145 153 161
ℓ 179 187 189 194 198 205 212 222 229 229 254 254 264 274 127 135 139 144 144 144 144 149 159 174 174 174
Code.No D 5
H H 1
Code.No D 5
H H 1
Code.No D 5
H H 1
ZKN38-18 -20 -22 -24 -27 -30 -33 -36 -38
ZKN 8-2 -3 -4 -5 -6 -8
ZKN65- 36 - 39 - 42 - 45 - 48 - 52 - 56 - 60 - 64 - 65 - 68 - 72 - 80 -100 ZKN65-1P
32
61
17
29.5 6.5
13
68
89 20
Metric (M)
12
45
64
ZKN38-3/4 -7/8 -1
ZKN 8-1/8
55 64 66
94
25
84
29.5
6.5
13
-3/16 -1/4
61
17
32
Unified (U) or British Standard Whitworth (W)
*
-11/8 -11/4 -13/8
-11/8P -11/4P -13/8P -11/2P -15/8P -13/4P -2P -21/4P -21/2P -23/4P -3P
64
12
45
68 89 20
ZKN38 -3/8P -1/2P -5/8P -3/4P -7/8P -1P
26 32
24 17
91 100 104 103 106 109
61
Pipe (PT) (PS) (PF)
45
64
12
84 94 25
★ ＊ mark: The Code No. of tap collet for M85 to M90 is ZKN65-100 . The Code No. of tap collet for M95 to M100 is ZKN65-100N . ★ The internal mechanism of the tap collet for the left handed tap is different from the standard one. Please use the special tap collet for the left handed tap.
292
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