Tractel NK1-0-20 Instruction Manual

technical NK ref. :
rev. : T 6013 GB
8
sheet automatic multiposition plate clamps
date :
page : Nov. 06 1/ 3
Applications
Liftingand revolvingofplates, profiles, fabricatedassemblies, steel frames...
Description
Clampsfitted with a safety springmechanism fora permanent contactof the camonto the piece to be
lifted, even when it is being put down. This model also offers an automatic grasping mechanism,
ensuring the clamp’s locking when the plate is correctly positioned ie. at the back of the clamp’s throat.
The locking leverdoesnot stick out so that the clamp may be used on the bare ground. The chain
enables the revolving and makes the clamp’s positioning easier. The corrugated cam only marks one
side of the load.
Functioning
So as to open the clamp’s cam, push the locking lever downwards, until the trigger activates ; the lever
remains in a down position. When the load is driven home at the back of the clamp’s throat, the trigger
activatesandtheclamplocksitselfautomatically.
The corrugated cam penetrates into the load’s material. Lifting ensures proportional clamping, thus
avoiding marking theloadexcessively.To release the clamp,push downthelockinglevercompletely,
until itlocksin the open position.The clamp mayalso be used without theautomatism being activated.
Todoso,use themanualopening andclosingthanksto theleverwithoutbringingittoitslimitstop
(trigger not activated). Loads may be grasped horizontally or vertically and revolved ininverse position
(90 or180°).
Important instructions
 Do not use for fragile loads.
 Using a NK marks the load.
 The plateorpiece to beliftedmust alwaysbedrivenhomeinto the throat ofthe clamp.
 Loadmaximum surface hardness330 HBand minimumtensile strength 20 daN/mm².
 Some stainless steels are particularly abrasive ; closel y che ck the condi ti o n of th e cam ’s te e th i n
thiscase.
 For safety’s sa ke, ensure the clamps are always unlocked when not in use (closed cam).
 Never lift more than one plate at atime.
 Apply the downgradation if necessary.
 Working temperature: -20° to +100°C.
Subjected to technical m odification with
outnotice
-
Non contractual document.

technical NK ref. :
rev. : T 6013 GB
8
sheet automatic multiposition plate clamps date :
page : Nov. 06 2/ 3
 Liftingfunction: do not exceed the allowable
15° angle between the chain and the
flanges’ plane.
 Turning function: for this application, the
clamp’s working load limit is divided by 2.
 Function lifting of loads in a vertical position with 2 clamps and no lifting beam: do not exceedthe
30° sling angle.
 Function lifting of loads in an horizontal position using 2 clamps at least and a lifting beam: the
working load limit of each clamp is divided by 2.
30°
maxi WLLWLL
2 x WLL
WLL/ 2 WLL/ 2
WLL
100%
50%50%
75% 75%
15° 15°
45° 45°
90°90° 0% WLL 0% WLL
0°
0° 15°15°
0% WLL 0% WLL
100%

D
J
F
technical NK ref. :
rev. : T 6013 GB
8
sheet automatic multiposition plate clamps date :
page : Nov. 06 3/ 3
General characteristics
 Manufactured withoutload bearing welds.
 Hot epoxy coating.
 Safety factor:3 in accordance with the EN 13155.2003 norm.
 Product conforms to the French regulation, in particular the decree of 01/03/2004 relating to the
check on lifting devicesand the European Directive n°98/37.
 Product with EC marking and delivered with a declaration of conformity and instructionsfor use.
Dimensional characteristics
Grab A
Ref. Group
code WLL
kg min max min max
K B C D E F G H I J L Weight
kg
NK1-0-20 50288 1 500 0 20 372 407 185 120 30 8 68 82,5 72 13 41 10,5 82 4
NK1-20-40 50298 1 500 20 40 385 430 224 151 44 8 81 82,5 72 13 41 10,5 97 5,8
NK1-40-60 50308 1 500 40 60 400 445 250 171 44 8 96 82,5 72 13 41 10,5 112 6,9
NK2-0-30 50318 3 000 0 30 594 645 278 190 58 13 95 122 117 22 68 20,5 120 12
NK2-30-60 50328 3 000 30 60 608 662 310 210 65 13 113 122 117 22 68 20,5 142 16
NK2-60-90 50338 3 000 60 90 631 680 338 245 70 13 128 122 117 22 68 20,5 157 17
NK3-0-40 50348 4 500 0 40 645 711 362 250 66 13 135 140 117 22 68 20,5 163 26
NK3-40-80 50358 4 500 40 80 655 719 395 270 80 13 160 150 117 22 68 20,5 188 28
NK3-80-120 50368 4 500 80 120 696 760 371 312 82 13 180 145 115 22 66 20,5 208 32
NK5-0-50 50378 7 500 0 50 993 1108 402 326 98 18 150 235 205 35 100 25 200 42.3
NK5-50-100 50388 7 500 50 100 1048 1162 449 330 95 18 205 235 205 35 100 25 244 50
NK5-100-150 50398 7 500 100 150 1080 1188 474 395 105 18 230 235 205 35 100 25 267 60
Dimensions inmm
Subjected to technical m odification without notice
-
Non contractual document.