APPLICATION TORQUE GUIDELINES

 Neck Finish
Inch-Pounds
Newton-Meter
3-7  0.34-0.79
10 4-8 0.45-0.90
13 5-9 0.56-1.02 
15 5-9 0.56-1.02
18 7-10 0.79-1.13
20 8-12 0.90-1.36
22 9-14 1.02-1.58
24 10-18 1.13-2.03
28 12-21 1.36-2.37 
30 13-23 1.47-2.60 
33 15-25 1.70-2.82
38 17-26 1.92-2.94
43 17-27 1.92-3.05
48 19-30 2.15-3.39
53 21-36 2.37-4.07
58 23-40 2.60-4.52
63 25-43 2.82-4.86
66 26-45 2.94-5.09
70 28-50 3.16-5.65
83 32-60 3.62-6.78
86 40-65 4.52-7.34
89 40-70 4.52-7.91
100 45-70 5.09-7.91
110 45-70 5.09-7.91
120 55-95 6.21-10.73
132 60-95 6.78-10.73

The above torque values are listed for guideline use only and are for closure application by hand under controlled conditions. Special conditions may require torque values other than those listed.

Note: Immediate removal torque values are approximately 40%-60% of the hand application torque values. Production capping equipment should be adjusted to produce similar immediate removal torque values.



Definition Torque is a rotational force applied during application or removal of a closure from a bottle.

Common torque categories include:

A.       Application torque -The rotational force with which a closure is applied to a bottle finish during capping. It affects seal integrity and tightness between bottle and closure. A properly established application torque will provide sealing integrity under expected conditions of temperatures, vibration, humidity, and shock.

B.        Removal torque -The rotational force with which a threaded closure is removed (un-screwed) from a bottle finish. It defines the amount of rotational force necessary to loosen, open, or remove the closure. A properly designed package should have a removal torque range appropriate for its intended use and the consideration of any requirements for child resistant or tamper evident closure needs.

C.        Stripping torque -The application torque which is sufficient to cause the closure and/or bottle finish to
distort and override the matching closure/bottle threads, resulting in loose caps, no seal, or package component deformation.

D.       Torque Values: Torque is defined in inch-pounds or newton-meters and is measured by various types of torque meters. 



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