Tablet Press Machine

Sinda is a professional supplier of tablet press machines. Tablet press machine is pressing dry granular or powdery materials into tablets through the molds. These machines can produce tablets of various shapes, such as round, oval, triangular, oblong, square, diamond, and circular. They can also emboss different patterns on the tablets. With the continuous development and evolving requirements for tablets, special types such as double-layer, triple-layer, and core-coated tablets can also be produced.

Applications of Tablet Press Machine

With market demand and technological advancements, the application scope of the rotary tablet press has expanded significantly. It is now used not only for pressing Chinese and Western medicine tablets in the pharmaceutical industry but also in the health care, food, and chemical industries.

Types of Tablet Press Machine

Tablet press machine can be categorized into two main types:

Rotary tablet press machine: These machines have multiple molds evenly distributed on a rotating turntable that perform vertical reciprocating motions according to a specific trajectory.

Single-punch tablet press machine: These machines use a vertical reciprocating motion of a single pair of molds.

Video of ZP Series Rotary Tablet Press Machine

Working Principle of Rotary Tablet Press Machine

The rotary tablet press machine operates by driving the turntable to rotate through the main motor. The rotation causes the upper and lower punches to move up and down within the middle mold, guided by the rails. Here’s how the process works:

Filling: The lower punch extends from the lower end of the middle die into the middle die hole, sealing the bottom. Granular material is automatically filled into the middle mold through the feeder.
Compression: As the turntable rotates, the upper punch descends into the middle mold hole, compressing the powder into tablets.
Discharge: The upper punch lifts out of the middle die hole, and the lower punch rises to push the tablet out, completing the discharge.

Main Structure of the Tablet Press Machine

Transmission Part: Comprising a motor, pulley, worm gear reducer, and adjusting handwheel. The motor speed can be adjusted using a variable frequency stepless speed regulator. Power is transmitted from the motor to the worm reducer via pulleys, driving the turntable spindle.

Turntable and Guide Rail Assembly: Includes the turntable (upper and lower bearings, spindle, turntable) and guide rail (upper and lower guide rails). The turntable carries the punch in a circular motion, while the guide rail assembly ensures the punch moves up and down to complete particle filling and tablet pressing.

Dose Control of Tablets

The dose of the drug is determined according to the prescription and pharmacopoeia and must remain consistent. Each tablet has different metering requirements:

Large Dose Adjustments: Achieved by selecting tablet press dies of different diameters.
Small Metering Adjustments: Made by adjusting the depth of the lower punch in the middle mold.

How to Choose the Tablet Press Machine?

Choose the appropriate tablet press machine based on the specifications, size, pressure, and output requirements of the product. Each rotary tablet press can press tablets of various specifications and shapes by changing the molds accordingly.

1. Select Production Capacity:

If the production is for a laboratory, small pharmaceutical factory, or research institution, where small batch production is required, TDP Series Single Punch Tablet Press Machine and ZP-5-7-9 Rotary Tablet Press Machinecan be chosen. TDP Series Single-punch tablet presses machinehave a simple structure, are easy to operate, and are relatively low in cost, making them suitable for small-scale trial production or experiments. ZP-5-7-9 Rotary Tablet Press Machineis with higher production efficiency than single-punch tablet presses, it can meet the needs of small batch production on a certain scale.
For large capacity production, ZP-31-35-39-41 Rotary Tablet Press Machine is better options. These types of tablet presses have high output and a high degree of automation, meeting the demands of large-scale production and improving production efficiency.

2. Select the Appropriate Pressure:

The stability and accuracy of pressure are crucial for tablet quality. Choosing a tablet press with suitable pressure ensures that the tablet’s hardness, thickness, and other parameters meet the required standards.

3. Determine the Size and Shape of Tablets:

Determine the tablet press mold based on the required size and shape of the tablet. Ensure that the tablet press mold can produce tablets of the correct specifications.