Tablet Press Machine

Tablet Press Machine

If you are looking for a machine to compress your powders or granules into uniform size and weight of tablets,a tablet press machine may very well suit your needs.A tablet press machine can be used to manufacture a wide variety of materials,including pharmaceuticals,nutraceuticals,cleaning products and cosmetics into tablets. To form a tablet, the granulated material must be metered into a cavity formed by two punches and a die, and then the punches must be pressed together with great force to fuse the material together.All tablet press machine has the same basic principe of compression.The most critical part of the tablet press machine is the tooling that consists of two punches and a die called a station.The upper and lower punches come together in the die that contains the tablet formulation.


Tablet press machine plays an important role in the pharmaceutical industry,as every day there are vast number of tablets manufactured,and the uniformity of each dosage unit determines the safety of the,if you are a pharmaceutical company,the precision capabilities offered by the tablet press machine is so invaluable to you.


While most tablet press machines have the same working process in principle, the method of compression varies slightly depending on the type of press. There are two different classifications of tablet press machines: single punch presses and multi-station/rotary presses.

Single Punch Tablet Press Machine

Single punch tablet press, also known as eccentric press or single station press is the simplest machine for tablet manufacturing. This machine uses a single set of station tooling (a die and a pair of upper and lower punches).


The compaction force on the fill material is exerted by only the upper punch while the lower punch is static; such action equivalent to hammering motion and as a result, the single punch press is referred to as stamping process. The single punch tablet press produces about 60-85 tablets/min.

Multi-station Tablet Press Machine

Unlike single-punch tablet press machine, multi-station tablet press machine contain multiple tooling stations that also can be called rotary tablet press machine. As the turret in which these stations are installed rotates, the punches move between a set of upper and lower compression rolls that exert enough compression to form uniform tablets, in large quantities. In this type of press, both the upper and lower punches move and the tablet compression occurs between the two. Rotary presses are thus categorized as a type of accordion compression.

The goal of this type of tablet press machine is to increase the output of tablets. Depending on the different punch designs, rotary tablet press machine can create tablets of different shapes and dimensions.


The single punch tablet press machine is best for projects where minimal amounts of test material are available, and in cases where the user is simply looking to confirm compressibility and nothing more. They do not allow the user to replicate key principles affecting production-sized presses, such as centrifugal force, mechanical feeder behavior and dwell time. Its biggest advantages are:

  1. Small size
  2. Ease of operation
  3. Low noise levels
  4. Compression feasibility

Rotary tablet presses are ideal for applications requiring high batch production, as their design allows for significant output and precise control. Advantages include:

Ability to independently control weight, thickness and hardness of tablets, if equipped with available peripheral devices

The capability to produce up to 1,000,000+ tablets per hour, depending on press size and tooling configurations.

Ability to precisely control and manage the filling of die cavities, via an induced feeder

Interface capability with in-house network systems, for remote monitoring and data archiving

Greater cost efficiency than single punch presses

Rotary presses can essentially meet most tablet batch requirements in pharmaceutical, nutraceutical, confectionery and veterinary applications. They are also used with surprising frequency to produce catalysts, ceramics, powdered metals and other materials deemed suitably compressibl


The two most important differences between a single punch tablet press and a rotary tablet press machine

  • Single punch tablet press machine utilizes single-sided compression to make tablets, whereas rotary tablet press machine uses ouble-sided compression
  • Single punch tablet press machine compression cycles do not have a dwell time, whereas rotary presses typically use a punch head flat which enables a dwell time as the punch passes under the compression roller.


When you are considering all the available tooling options and steel types, it can be confusing and complicated to purchase tablet tooling. Before making the final purchase, it is advisable to request a tool and tablet drawing for approval. Most tooling manufactures can submit a sample tablet made of copper or a special grade of plastic for further approval. The following list is a guideline for information that is needed by the tooling manufacture to properly custom-manufacture tooling that meets the requirements of the product and tablet press:


  • The size, shape, and cup depth of the tablet to be compressed (a sample tablet or sample tools would be sufficient if this information is not available)
  • Drawing number of the tablet if a drawing exists, if not, request a drawing for future reference
  • Hob number, if the order is a replacement
  • Press type, model number, and number of stations required
  • Steel type if other than standard
  • Historical data referencing tablet problems such as capping, sticking, picking, high ejection forces, etc.
  • If the tablet is a core and will be coated
  • Special options such as tapered dies, domed heads, key type, etc.
  • Special shipping instructions.

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