NK
Automatic Multiposition Plate Clamps
Description
Clamps fitted with a spring mechanism for a
permanent contact of the cam onto the piece to be
lifted, even when it is being put down. The NK has an
automatic locking mechanism when the plate is
correctly positioned at the back of the clamps throat.
The locking lever does not stick out so that the clamp
may be used on the bare ground. The chain enables
the revolving and makes the clamp’s position easier.
The cam is designed to mark only one side of the
load.
Ref.
Item WLL lbs. (t)
Opening
A*
B
C
D
E
F
G
H
I
J
K
L Weight
min
max
min
max
Number
kg.
In./ mm
In./ mm
In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm In./ mm lb./kg.
NK1-0-20
50288
3300 (1.5) 0
3/4 17 1/8 18 1/2 7 9/32 4 23/32 1 3/16 5/16
2 3/4 2 11/16 4 1/3* 5/8 2 3/8* 11/32 3 1/4
8.80
1 500
0
20
435
470
185
120
30
8
68
82.5
110* 16
60* 10.5
82
4
NK1-20-40
50298
3300 (1.5) 7/8 1 1/2 17 5/8 19 3/8 8 13/16 5 15/16 1 3/4 5/16 3 3/16 3 1/4 4 1/3* 5/8 2 3/8* 11/32 3 13/16 12.76
1 500
20
40
448
493
224
151
44
8
81
82.6
110* 16
60* 10.6
97
5.8
NK1-40-60
50308
3300 (1.5) 1 5/8 2 5/16 18 1/4
20
9 25/32 6 3/4
1 3/4
5/16
3 3/4
3 1/4
4 1/3* 5/8
2 3/8* 11/32 4 13/32 13.2
1 500
40
60
463
508
250
171
44
8
96
82.7
110* 16
60*
10.7
112
6
NK2-0-30
50318
6600 (3)
0
1 1/8 23 3/8 25 13/32 10 15/16 7 1/2
2 1/4
1/2
3 3/4 4 13/16 4 5/8 7/8 2 11/16 13/16 4 23/32 26.40
3 000
0
30
594
645
278
190
58
13
95
122
117
22
68
20.5
120
12
NK2-30-60
50328
6600 (3) 1 3/16 2 5/16 23 15/16 26 1/6 12 3/16 8 1/4
2 1/2
1/2
4 7/16 4 13/16 4 5/8 7/8 2 11/16 13/16 5 19/32 33.0
3 000
30
60
608
662
310
210
65
13
113
122
117
22
68
20.6
142
15
NK2-60-90
50338
6600 (3) 2 3/8 3 1/2 24 7/8
26 3/4
9 21/32 2 3/4
1/2
5
4 13/16 4 5/8 7/8 2 11/16 13/16 6 3/16 37.40
3 000
60
90
631
680
338
245
70
13
128
122
117
22
68
20.7
157
17
NK3-0-40
50348
9900 (4.5)
0
1 1/2 25 3/8
28
14 1/4 9 27/32 2 19/32
1/2
5 5/16 5 1/2
4 5/8 7/8 2 11/16 13/16 6 7/16
55.0
4 500
0
40
645
711
362
250
66
13
135
140
117
22
68
20.8
163
25
NK3-40-80
50358
9900 (4.5) 1 5/8
3
25 13/16 28 5/16 15 9/16 10 5/8 3 5/32
1/2
6 1/3 5 29/32 4 5/8 7/8 2 11/16 13/16 7 13/32 57.2
4 500
40
80
655
719
395
270
80
13
160
150
117
22
68
20.9
188
26
NK3-80-120
50368
9900 (4.5) 3 3/16 4 5/8 27 7/16 29 15/16 14 5/8 12 1/4 3 1/4
1/2
7 3/32 5 29/32 4 1/2 7/8 2 19/32 25/32 8 3/16
59.4
4 500
80
120
696
760
371
312
82
13
180
145
115
22
66
20.10 208
27
NK5-0-50
50378
16500 (7.5)
0
2
39 1/8
43 5/8 15 25/32 12 27/32 3 7/8
23/32 5 29/32 9 1/4
8 1/16 1 3/8 3 15/16
1
7 7/8
93.06
7 500
0
50
993
1108
402
326
98
18
150
235
205
35
100
25
200
42.3
NK5-50-100
50388
16500 (7.5)
2
4
41 1/4
45 3/4 17 11/16
13
3 3/4
23/32 8 3/32 9 1/4
8 1/16 1 3/8 3 15/16
1
9 5/8 110.00
7 500
50
100
1048
1162
449
330
95
18
205
235
205
35
100
25
244
50
NK5-100-150
50398
16500 (7.5)
4
6
42 1/2
46 3/4 18 11/16 15 9/16 4 1/8
23/32 9 1/16 9 1/4
8 1/16 1 3/8 3 15/16
1
10 1/2 132.00
7 500
100
150
1080
1188
474
395
105
18
230
235
205
35
100
25
267
60
NK Plate Clamp
Table 4
NK1 comes with round ring
www.tractel.com
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