Punch and die maintenance

(Sajjad Ahmad) #22

An inspector can simply drag their fingernail from the inside of the cup out to the outer edge and if a J-hook is present, his or her nail will catch on the hook. If the J-hook is light, it can be removed by polishing. In addition, polishing restores the cup’s mirror luster

(Imran Khattak) #23

Can plz named some branded lubricants which can be used before storage of Punches

(Sajjad Ahmad) #24

(Imran Khattak) #25


(Sajjad Ahmad) #26

well come

(Md. Saifullah Khan) #27

what is Automated polishing? how to perform?

(Sajjad Ahmad) #28

its auto polishing machine

(Sajjad Ahmad) #29


(Md. Saifullah Khan) #30

what kind of preservative/lubricant is used ?

(Sajjad Ahmad) #31

for storage

(Md. Saifullah Khan) #32

I want to know the name of presevative / lubricant

(Sajjad Ahmad) #33
  • 21.CFR 178.3570 – Allowed ingredients for the manufacture of H1 lubricants
  • 21.CFR 178.3620 – White mineral oil as a component of non-food articles intended for use in contact with food
  • 21.CFR 172.878 – USP mineral oil for direct contact with food
  • 21 CFR 172.882 – Synthetic isoparaffinic hydrocarbons
  • 21.CFR 182 – Substances generally recognized as safe

(Md. Saifullah Khan) #34

How to determine life cycle of die and punch?

(Sajjad Ahmad) #35

It can be valitated by observing number of batches compresed on a tooling.

(Md. Saifullah Khan) #36

Is there any specific sign that help me to understand ?

(Sajjad Ahmad) #37

yes there may be variation in punch length.
Punch edges may b damagef.
punch tip surface may be eruded.
tab compressed may have a large coller.
increased weiht variation,diff in thickness etc

(Md. Saifullah Khan) #38

What is maximum allowable load on punches during compression?

(Sajjad Ahmad) #39

It depend upon hardness required and type of tooling B type or D type

(Md.Asif Hussain) #40

Good reference provided…

(Rakesh Kunwar) #41

Which guidelines should I read for Aseptic products