Lubricating tablet presses application // Kluber Lubrication

Lubricants are used in the tablet press application to reduce the compression force during tableting, to avoid product build up on the tablet press tools and to make the tablet surface smooth. There are a few requirements that the lubricants need to have for the tablet press application.

FDA-compliant
NSF H1 registered
Certified according to NSF ISO 21469-Halal-Kosher
Good wear protection
No blackening of bronze guides and therefore no contamination with dark particles
Tested compatibility with elastomer seals on scrapers
OEM approval

Application	Product	Technical Data	Description and benefits
Tablet punch and bronze guides	Klüberpharma UH1 4-220 Klüberpharma UH1 4-460	ISO VG 220, 460 acc. to DIN 51519 NSF H1, ISO 21469 compliant with FDA 21 CFR 178.3570 Service temperature range: −15 to 110 °C	Compatible with bronze. No blackening of bronze guides and therefore, no contamination with dark particles for reduced reject numbers
Blistering packaging	BARRIERTA L55/2	NLGI grades 0, 1, 2 and 3 acc. to DIN 51818 NSF H1, ISO 21469 compliant with FDA 21 CFR 178.3570 Service temperature range NLGI 0, 1, 2: −40 °C to 260 °C, NLGI 3: −30 °C to 260 °C	Long-term grease with excellent resistance to high temperature and aggressive media Compatible with plastics and elastomers Long-term stability and high purity level

Application

Product

Technical Data

Description and benefits

Tablet punch and bronze guides

Klüberpharma UH1 4-220
Klüberpharma UH1 4-460

ISO VG 220, 460 acc. to DIN 51519

NSF H1, ISO 21469 compliant with FDA 21 CFR 178.3570

Service temperature range: −15 to 110 °C

Compatible with bronze. No blackening of bronze guides and therefore, no contamination with dark particles for reduced reject numbers

Blistering packaging

BARRIERTA L55/2

NLGI grades 0, 1, 2 and 3 acc. to
DIN 51818

NSF H1, ISO 21469 compliant with FDA 21 CFR 178.3570

Service temperature range NLGI 0, 1, 2:
−40 °C to 260 °C, NLGI 3: −30 °C to 260 °C

Long-term grease with excellent resistance to high temperature and aggressive media
Compatible with plastics and elastomers
Long-term stability and high purity level

Successful Case Study - Tablet Press

How can the lifetime of punches (pressing tools) be improved?

One of Europe’s leading providers of Contract Manufacturing to the Pharmaceutical and Health & Beauty industry, manufacture, pack and ship over 770 million packs per annum. Their business objective is to reduce wear on the punches of presses.

The right oil viscosity is the key! High surface pressure in the punch head/thrust roller friction points would normally require a high oil viscosity. As the oil is also in the punch fit, wear in the fit may increase after the pressing procedure. Hence, medium oil viscosity should therefore be preferred. The solution provided by Klüber Lubrication for medium viscosities oil was Klüberpharma UH1 4-220 and Klüberpharma UH1 4-460 which have shown to achieve the best results in most applications.

The outcome after switching to Klüberpharma UH1 4-220 and Klüberpharma UH1 4-460, was less wear on the punch head can be observed. These lubricating oils offer good wear protection, thus extending the service life of components, as confirmed by oscillation friction wear tests according to DIN E 51834.

Overall benefits and values:

Less wear on the punch heads compared to a relatively lower viscosity oil such as ISO VG 68, therefore longer lifetime of the punches
Reduction of number of lubricants (one oil for punch lubrication)
Higher product safety due to NSF H1 registration and NSF ISO certification
Countered black spot issue on steel punch-bronze guide setup of tablet presses

Successful Case Study - Blistering Packaging

One of the top 10 largest Russian pharmaceutical manufacturer in Saint Petersburg finds solution for open linear bearing of blistering machine with BARRIERTA L 55/2.

Business issue:
They faced contamination by metal foil particles, colour and consistency changes and the need for several relubrication and maintenance per month with the existing lubricant they are using.

Hence, their business objective is to reduce risk of final product contamination by metal particles and to decrease maintenance time.

The solution provided by Klüber Lubrication showed satisfying results. Since switching to BARRIERTA L55/2, there is no need for any maintenance the entire year. The risk of final product contamination both by lubricants and maintenance personal was absolutely excluded. PFPE products is seen to be the best solution for lubrication points exposed to metal (or other nature) dust due to lowest surface tension of PFPE oils. Reducing wear particels is the most important aspects in pharmaceutical clean rooms.

Overall benefits and values:

Extended relubrication intervals
No contamination of bearing by metal foil dust
No cleaning needed for one year period
No risk of contamination of products
Reduced wear particles due to the use of BARRIERTA L 55/2 as the application is operating in a pharmaceutical clean room

Your benefits at a glance

Wear protection of punches
The right oil viscosity is key. High surface pressure in the friction point punch head/thrust roller would normally require a high oil viscosity. As the oil is also in the punch fit, wear in the fit may increase after the pressing procedure. Hence, medium oil viscosity is preferred. The medium viscosities of Klüberpharma UH1 4-220 and Klüberpharma UH1 4-460 have shown the best results in most applications.
Scraper - Elastomer compatibility
When the scraper is lubricated, the scraper seal comes in contact with the lubricating oil. Incompatibility may cause swelling of the o-ring, which in turn leads to wear in the fit. Klüberpharma UH1 4-220 and -460 have been tested for compatibility with scraper seals from Freudenberg Process Seals.
OEM recommendations
Klüberpharma UH1 4-220 and -460 have been tested, approved and included in the lubrication charts of well-known OEMs.

Lubricating tablet presses application

Successful Case Study - Tablet Press

Successful Case Study - Blistering Packaging

Your benefits at a glance

999415

999430

AIRPRESS 15

AIRPRESS 32

AIRPRESS 68

ALSOL 1000

ALTEMP Q NB 50

ALTEMP Q NB 50 Spray

ALUSTRA 65

AMBLYGON TA 15/2

AMBLYGON TA 30/1

AMBLYGON TA 30/2

Get in touch

Klüber Lubrication (Malaysia) Sdn Bhd (199701013009)