Nestech specializes in post molding automation for the cap and closure industries. Nestech produces high speed cap slitting, closure lining, cap assembly, and other automation equipment. Cap slitting and folding are done on the same machine. Closure lining has been a cornerstone of Nestech machines. Almost all caps and liners are used for closure lining in Nestech Machine Systems. Nestech is the leader in assembly machines for sports caps. Nestech produces advanced closure lining machines that have more compact designs and more features. This page describes tamper evident slitting

Closure Slitting

Closure slitting produces tamper evident breakaway rings on plastic closures. The cutting process makes a series of cuts and bridges in the cap wall.

These slits can be done in the mold. However, mold costs and maintenance are drastically reduced when slitting is done as a secondary operation . There is also a danger that the weakened cap will be damaged upon ejection from the mold. 

Nestech machines slit the caps and provide a fold-in feature for any hooks or retaining rings. The caps are completely processed and ready for lining.

Nestech uses straight knife and traditional curved knife slitting processes to produce a breakaway tamper-evident ring on closures. Our knives do NOT need to be heated.

Left:  A picture of a lab model used to test customers tooling before full scale production

For slower applications, an rotary indexing type machine is used. Speeds range in the 200-600/minute range. The cutting knives are set with a micrometer backstop for precision depth of cut. These machines produce tamper evident breakaway bands on closures.

High speeds require a rotary machine with multiple spindles. Speeds are up to 1200/minute. This machine is equipped with fast acting caliper brakes and spring loaded clutches.

Typically, our customers require several caps to be run on the same machine. Our patented tooling makes dedicated machines obsolete. Tooling changes take around 45 minutes.

 Nestech specializes in post molding automation for the cap and closure industries. Nestech produces high speed cap slitting, closure lining, cap assembly, and other automation equipment. Cap slitting and folding are done on the same machine. Closure lining has been a cornerstone of Nestech machines. Almost all caps and liners are used for closure lining in Nestech Machine Systems. Nestech is the leader in assembly machines for sports caps. Nestech produces advanced closure lining machines that have more compact designs and more features. This page describes tamper evident slitting Nestech specializes in post molding automation for the cap and closure industries. Nestech produces high speed cap slitting, closure lining, cap assembly, and other automation equipment. Cap slitting and folding are done on the same machine. Closure lining has been a cornerstone of Nestech machines. Almost all caps and liners are used for closure lining in Nestech Machine Systems. Nestech is the leader in assembly machines for sports caps. Nestech produces advanced closure lining machines that have more compact designs and more features. This page describes tamper evident slitting