Pharmaceutical tablet press punch tip

01

Match the tooling standard and the number of tips

Elizabeth describes tablet tooling as an upper punch, a lower punch and a die: powder is filled into the die and compressed between the two punches, and the tooling sets the tablet's shape, size and markings. Elizabeth, Fette Compacting and LFA each list standard TSM and EU tooling formats. [1] [2] [3]

Elizabeth names B, D, BB and DB tooling types and says the choice depends on tablet size, press specifications and production requirements. [1] LFA notes that its own presses take TDP, RTP, EU or TSM compatible tooling and asks buyers to check tooling size against the press specification. [3]

For more output per press, Elizabeth offers multi-tip tooling in cap-assembly or solid monoblock form, precision-keyed so each tip aligns with its die bore, and claims up to 300% higher tablet output without new presses. [1] Fette Compacting supplies cleaning components for both simple and multi-tip tools. [2]

Give the supplier the press model and turret, tooling standard and type (TSM or EU; B, D, BB or DB), tablet shape, size, cup depth, embossing or score line, number of tips per punch, cap-assembly or monoblock design, material, coating, formulation behaviour (abrasive, sticky, humid), and the number of sets.

02

Choose the tip material and coating for the formulation

Elizabeth lists S7 steel with a micro-polish finish for pharmaceutical tooling; 440C high-chromium stainless steel for humid environments and washable presses; and tungsten carbide for highly abrasive formulations, which it says gives 3 to 10 times the life of standard materials. [1] LFA supplies GCr15 steel as standard and offers S7, S5 and 405 steels. [3]

Elizabeth's surface options are chrome plating for corrosion resistance and lubricity against powder sticking, titanium nitride (TiN) for wear and corrosion resistance, chromium nitride (CrN) against wear, corrosion and sticking, and ion beam enhanced deposition (IBED). It lists coatings, punch-face polishing, formulation flow and compression settings as ways to reduce sticking. [1]

Fette Compacting recommends a visual inspection of the tools after each use and polishes tool surfaces after cleaning. [2] Elizabeth lists visible wear or damage, tablet defects, inconsistent weight or hardness and increased machine strain as signs that tooling needs replacing. [1]

03

Know when split punch holders and multi-tip tools replace standard punches

GEA's R55 rotary press page describes tooling for high-force industrial tableting that departs from EU or TSM punches. The R55 makes single-sided tablets at compression forces of up to 130 kN, with 16 or 12 stations, outside die diameters of 48 or 70 mm, punch-holder bodies of 40 or 45 mm and a maximum output of 30,720 or 23,040 tablets per hour. GEA states that its punch holders differ from the EU or TSM standard in three ways: a milled high-pressure head gives line contact with the compression roller instead of the point contact of a mushroom head, reducing specific contact pressure; the tooling is split into a punch holder and a separately replaceable punch tip, because the holder is not subject to heavy wear; and side rollers run in a cam track, which it says allows ejection forces up to 10 kN without excessive wear. It also lists core rods and multi-tip punches, where “A number of smaller punch tips are fastened on a larger punch holder” and output multiplies by the number of tips. [4]

GEA writes that “Generally speaking, pharmaceutical presses are equipped with standardized mushroom-head tooling”, the EU and TSM tooling and multi-tip designs described above; its split design is aimed at high-force industrial tablets. [1] [2] [3]

Editorial calculation: 30,720 tablets/h over 16 stations is 1,920 per station per hour, or 32 turret revolutions per minute; a 4-tip tool on the same press would raise the theoretical output to 122,880 tablets/h.

For high-force or very large tablets, ask whether the press uses standard EU/TSM punches or split holder-and-tip tooling, the tip force rating, and whether tips can be replaced without the holder.

04

Tip drawings, hardness, coating and keying to get with a punch tip quote

Ask any supplier for tooling standard and type, tip drawings with dimensions and tolerances, material and hardness, coating, surface finish, keying method for multi-tip tooling, inspection report, lead time and minimum order.

05

Tip face, die bore fit, cap assembly, key and coating

06

Tip diameter, profile, hardness and concentricity for a punch tip order

Diameter, hardness, tip length and concentricity are not stated in the reviewed sources, so those rows have to come from the tip drawing for your tablet. [1] [3]

07

Send the press, tablet and material data together

Paste it into your enquiry below or into an email to a maker, then replace every bracket.

Press: [model; turret; stations]
Standard: [TSM; EU; B; D; BB; DB]
Tablet: [shape; size; cup; embossing; score]
Tips: [single; multi; cap assembly; monoblock]
Material: [S7; 440C; carbide; other]
Coating: [chrome; TiN; CrN; none]
Quantity: [sets]

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