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Welcome to LFA Tablet Presses

At LFA we look to support and teach people that are looking to start or grow their business or research and development department. We do this through being transparent on everything we do. This includes our pricing of all of our machinery, from the entry level VICE Handheld Pill Press, to the RTP33 Rotary Pellet Press, right up to the HSTP (High Speed Tablet Press) range. All of the prices are available on our site and include shipping and UK / EU taxes. Reed more about how we look to help you in the About Section.

Over the last 7 years we have built up a wealth of knowledge in a rage of areas that can help you and your business. We have a rage of articles covering, granulation, mixing techniques, food and pharmaceutical law, common problems in tableting to the type of tablet press that you need to give your project the best chance. Click here to see the full back catalog of our articles.

To back this up we have our videos section. In this area we cover everything from changing the tooling in single station and rotary tablet presses to tablet mix formulation. For all of our free training, maintenance and overview videos click here.

If you are new to our website a great section to check out is our members area. Simply sign up with your name and your email address and join our community of over 3000 people just like you. Once inside the members area you will have access to free tools are resources that will assist you in every stage of the tablet formation and production process. Including, a Mix Calculator, Weights Converter and Tablet Press Tooling Data Tables. On top of this make sure that you sign up to our email list and every 2 weeks or so we will send you an email. To sign up now for access to this exclusive tools, resources and information click here.

One of the unique aspects of LFA Tablet Presses is the services it can offer. Our team is trained in ISO 22000 and has an understanding of the Orange Guide allowing us to offer cleanroom consultancy services. If you are about to set up your tablet, pill or pelleting facility we maybe able to help. Take a look at our services section now to find out how we can help you with, contract manufacturing, cleanroom setup or onsite training.

Recent Articles

Building in strength in to your design

The tablet land is a slight level surface that is vertical to the tablet’s boundary creating a junction between the boundary and the cup of the tablet. There are three main reasons why one would incorporate a land into the tablet’s design.

  1. Increase the strength of the punch edge
  2. Increase the wear of the punch cup inner edges
  3. Lower the relentlessness of the nicks on the edges of the punch

Some would agree that the land is beneficial as it adds durability and strength to the punch tip; however, some would argue that the land makes it more difficult to coat the tablet.

The width of the land is dependent upon the following:

  1. Tip diameter
  2. Cup depth
  3. Cup configuration
  4. Punch steel selection
  5. Compression force
  6. Abrasiveness of granulation

The round punch tips are deeper than the average concave and as such designed with 0.002 to 0.008 land. Special punch tips on the other hand are designed with 0.002 to 0.012 land. In certain cases, the width of the land is designed with excess of 0.020 to add durability and longevity to the punch tip.

As the depth of the cup increases, the cup’s slope also increases at the boundary of the tip. This often leads to the possibility of having a deformed tip edge or fractures of the tip when heavy compression loads is applied and the tip has little or no land. As the punch starts compressing the tablet, the stress is placed higher at the tip edge. Compression stress is distributed as the granulation is forced to the middle of the cup. This is also what happens and describes the wear problem that often occurs at the outer edges of the cup face, as the granulation flows through this area of the cup. In adding land to the design, it reduces the possibility of tip deflection while increasing the durability and strength of the edges. It is important to note that the deeper the design of the cup, the wider the land should be to help strengthen the tip.

Punches that are made of stainless steel would also require wider land as stainless steel has low shock resistance compared to standard steels and to help aid the punches as heavy force is needed to compress nutritional supplement tablets.

Even though compression punches undergo stress tests and are heat treated for optimal wear resistance use, the punches still need proper care and handling especially during set up and production process. Contacts between punch tips or another surface would cause damages to the tip’s edge. It is important that punch tips design should also include the correct land to lower down the possibility of accidental damage as the land adds strength to the area.

The presence of the land results to a lip or a ridge around the boundary of the tablet, at the tablet face’s junction, belly band and side wall. The edge is usually prone to erosion bought about by the tumbling action in the coating pan. The junction of the land as to the cup face will also result to a sharp inside corner on the tablet area. To prevent any problems especially during the coating process, it is important that the land should have a huge blend radius at the junction area. This will remove the sharp corner as it adds a curved transition between both surfaces. One can also indicate in the design “blended” so that the land is created before the sharp corners are blended. Other specifications may also be included in the tablet design to indicate the land width after blending and the blend radius may be dimensioned as well.

The blending of the inner area is achieved by:

  1. Adding the requirement to the drawing so that it is incorporated during the assembly of the equipment
  2. Blending the punch cup during the final step

The slope of the cup adjacent to the interior edge of the land that has a compound cup added to the design is greater than single cups, which results in the reduction of tip force. That said, the land becomes more important than ever as it helps replenish the strength loss caused by the steeper slope. A wider land is usually suggested when a compound cup design is needed.

Due to the concentrated wear and tear on the land, it is important that the area is inspected regularly. To extend the longevity of the equipment and maintain tablet quality, it is important to rework the punch cup and re-establish the land.

There are many designs that have evolved to accommodate heavy land that provides strength and longevity to the tablet press equipment (especially in the TDP rage) without affecting the quality of the tablet. Nutritional supplement manufacturers usually use 0.020’’ wide land to coat tablets successfully. This design is often used by those who manufacture generic tablets as well.

An increase in land width would result to increased punch strength reducing the possibility of tip deflection while still allowing higher compression and extending the tool lifespan. If you have any questions, contact your tooling vendor and let them guide you through the entire design process to ensure a successful tablet design.

Why press 1 when you can press 8 for the same price

The multi-tip tooling equipment is not new in the market; in fact, it has been used for more than a century now. At the start of the compression industry, single station tablets are fitted with multi-tip tooling to help increase the production and at the same time lower labor cost, energy, maintenance and space

​An Overview of Vegetarian Capsules

The advancement in science and technology makes it easier for one to make their own supplements. Vegetarian capsules are healthier as these are derived from natural ingredients such as cellulose, hydroxyl and methyl. If you are looking for a healthy and natural alternative to traditional capsules, then vegetarian capsules can be an excellent choice for you.

An Overview of Encapsulating Liquids

Although one can encapsulate liquids in a gelatin or vegetarian capsule, the truth is that the process of encapsulating is both a science and an art. The product usually depends on the weight and quality of the formulation as well as other variables that can affect it.

Ultimately what LFA is know for it's presses. Our range starts with the VICE Handheld Pill Press. Ideal for home use and R&D departments it produces one tablet at a time. We also have a comprehensive range of single station tablet presses like the TDP 5 (Tablet Desktop Press). The desktop tablet presses range is perfect for small business. We have presses suitable for chemical production and GMP environments. The rotary tablet press range is ideal for medium to large production runs. Ranging in production capacity from 16,000 to 250,000 tablets per hour we have every level to suit your requirements. To check out our full range of products including our powder mixers, tablet presses, granulators and excipients click here.

We ship all of our products worldwide and are happy to send with any carrier you like. By default we use Royal Mail and DHL. For more information on our shipping policies click here.

If you have any questions then please get in contact with our team and find out what we can do today to help you.