breakaway (slip) torque | Mecmesin

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Friction keeps a closure secure, and reduces as a screw thread is turned. The torque required to initiate turning is referred to as breakaway. The friction may be between the container finish or seal and the cap or its liner, in the screw thread or threads, or all of these. This breakaway point is detected as an initial peak, and is followed by a reducing running torque. Spillage on filling can either initially lubricate this contact, or for thickening contents, introduce a parasitic or thread-locking torque.

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Standards

Featured or equivalent test standards for Mecmesin solutions in this section

ASTM D3481

Standard Test Method for Manual Shelling Two-Piece Child-Resistant Closures That Are Activated by Two Simultaneous Dissimilar Motions

BS EN ISO 80369-7

Small-bore connectors for liquids and gases in healthcare applications - Part 7 connectors for intravasular or hypodermic applications

ISO 13939

Foil bearings - Guidelines for testing of the performance of foil journal bearings -Testing of load capacity, friction coefficient and lifetime

ASTM D7860-14

Standard Test Methods for Measurement of Torque Retention for Child Resistant and Non-Child Resistant Packages with Continuous Thread Closures Using Automated Torque Testing Equipment

BS EN 28317

Child-resistant packaging. Requirements and testing procedures for reclosable packages

BS EN ISO 8317

Child-resistant packaging. Requirements and testing procedures for reclosable packages

CETIE Guide 6

Guide 6 - Metallic Screw Capping for Still Wines on BVS glass with redraw_CETIE

CETIE Guide 9

Guide 9 - Metallic Screw Capping for Pressurised Wines on BVS glass with redraw_CETIE

Wide Vortex sanitary disposal container closure torque test with mandrel

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Hygienic disposal bin closure testing

SEVEN SEAS cap mandrels designed specifically for an exact fit

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Child resistant closures (CRC) mandrel

PDV12112 Vortex pneumatic lift mechanism for CRC closures

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Pneumatic top-load control for CRC cap torque testing

Finger claw torque fixture catheters (PDV14091)

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Catheter cap removal torque

Luer cap torque test PDV13190

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Luer lock fastening and release torque

Mandrels for bottle caps suitable for use with the Vortex

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Bottle cap torque testing with custom mandrels

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Manually operated digital cap torque tester with nail paint products in the lab ready to QC test

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Cosmetics jar ready for release torque checking on a Tornado manual torque tester

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Torque testing beauty product closures