Tablet Tooling In Compression Machine

Name:- Devang A MehtaRoll No.:- 38

Guide:- Mrs. Varsha Pradhan

Why Tablets??

Why tablet tooling???

Overview

• General Terminology of Tooling• Different shapes of dies and punches• International Standards• Materials For Construction• Coating of Dies and Punches• Quality Control• Maintenance of Dies and Punches• New Developments

GENERAL TERMINOLOGY OF TOOLING

• Upper punch

• Lower punch

• Die

• Keying

Different shapes of tablets

Different Shapes of Dies and Punches

• Round shape punch die set

• Oval shape punch die set

• Capsule shape punch die set

• Geometric shape punch die set

• Irregular shape punch die set

• Core rod tooling punch die set

Round shape Punch Die Set

• Used by pharmaceutical and veterinary industry.

• Can manufacture following type of tablets: Shallow Concave

Ball Shape Deep Concave Flat

Faced Concave with Edges

Flat with Bevel Edges

Normal Concave.

Oval Shape Punch Die Set

• Applicable to pharmaceutical and ayurvedic industries.

• Can manufacture following types of tablets: Flat Faced Flat with

bevel edges Concave/Deep/Deep

Concave with bevel edges.

Capsule shape punch die set

• Applicable to pharmaceutical and ayurvedic industries.

• Can manufacture following types of tablets: Concave with Edges Deep Concave Flat

Faced Normal concave Flat

with Bevel Edges.

Geometric Shape Punch Die Set

• Applicable to pharmaceutical, confectionery, chemical, industrial powder metallurgy industries.

• Can manufacture following types of tablet: Triangular Benzene Rhombus Rectangular Square.

Irregular Shape Punch Die Set

• Are applicable to confectionery industries.

• Available with different size, concavity, and flat in plain or engraved break line.

Core Rod Tooling Punch Die Set

• Applicable in confectionery and ceramic industries.

• Can manufacture following types of tablets: Tablet with hole in

center & concave rib

Tablet with hole in center & flat rib.

International Standards

• BB tool

• B tool

• D tool

Type of Tools Punch Body (mm) Diameter (mm)

D tools 25.35 38.10

B tools 19 30.16

BB tools 19 24

Materials For Construction

• Dies- HCHC (High carbon High chromium steel )

• Punches- OHNS (Oil Hardened Nitride steel)

• Different types of steel standards: For dies:- AISI-01 For punches:- AISI-S7, AISI-S1, D2(HCHC-

D2), SUS 440C.

Coating of Dies and Punches

• Why coating is required?

Sticky material

Corrosive material

Abrasive material

Different Types of Coatings

• Titanium Nitride Coating

• Electroless Nickel Plating (ENI)

• Chromium Nitride Coating (CrN)

• Chromium Carbon Nitride (CrCN) Coating

• Diamond Coating of Diamond like Carbon (DLC)

• Cr-CrN-Cr Multilayer Coating (Nano Coating)

Coating Rates

Coating Base material Cost per Punch

Rs.

HCP (AISI-01)/S7 100

ENI (AISI-01)/S7/D2 150

TiN D2 375

CrN (AISI-01)/S7 250

CrCN (AISI-01)/S7 300

DLC S7 / D2 500

Nano S7 / D2 500

Quality Control

• Visual Inspection• Dimensional Inspection

Punches: Overall length Working length Cup depth Tips – round and capsule Tip and Barrel

concentricity Head, Head flat and Neck Barrel

Dies: Height and outside

diameter Die bore diameter using

expandable, small bore gauges

Die bore major and minor axis using Vernier caliper and expandable, small bore gauges

Die Bore concentricity Squareness

Maintenance of Dies and Punches

• Why is it required?To improve the lifespan of toolings.

• How are they Maintained? Fitting instructions usually as per the

manual given. Warm soap water and a soft brush are

suitable for thorough cleaning Not to be touched by bare fingers Thoroughly coated with an acid-free oil in

order to prevent corrosion.

Contd..

Toolings should be regularly checked. Polishing –

By hand “Drag Finishing” machine

Storage cabinets for tooling – Clashing Dusting Humidity

New Developments

• Multi-tip punches

• Development in manufacturing different shapes of tablets Polo Teddy Beer, Lion, etc.

• Tablets which can be broken into 4 equal halves

• PVD (Physical Vapor Deposition) coating technology.

Multi-tip Punches

PVD (Physical Vapor Deposition) Coating Technology

References:

• www.google.com• Parle-Elizabeth Tools Pvt Ltd.• Encyclopedia of Pharmaceutical

Technology, Third Edition• http//www.thomaseng.compresstooling.pdf• www.vmindustries.com• PharmaExpress

Thank you

Acknowledgement

• Mr. Snehal Surti (Asst. General Manager –Operation) from Parle-Eliza Tools Pvt Ltd.

Any Questions?????