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Tablet pressing machine

Tablet pressing machine

Nov 30,2021

Q1Can the punch be made of titanium for all different kinds of Tablet Press Machine?

AThe punch material can be customized according to client requirement for tablet press machine, but the charges will be increased for sure.


Q2Under what circumstances does the tablet pressing machine need to increase the cost?

ANormally we divide tablet press machine into different series, ZP-Series, ZPT-Series, GZP-Series and non-standard FZP-Series.

ZP-Series is our standard tablet press machine which can do Max. 25mm diameter.

ZPT-Series is our improved type tablet press machine which comes with automatic lubrication system and all features the same to high speed tablet press machine, just with slower rotation speed than high speed tablet press machine.

GZP-Series is our high speed tablet press machine which can do Max. 110rpm/min with Max. 25mm diameter.

FZP-Series is our non-standard tablet press machine which can be customized according to client requirement, especially when you have bigger tablet size which exceed our 25mm diameter.


Q3The difference between the European standard B punch and the European standard D punch in the tablet pressing machine.

AEuropean standard: IPT

D-type punch refers to the diameter of the punch rod: 25.35mm, the middle mold: 38.1mm,

B-type punch refers to the punch diameter: 19mm, the middle mold: 30.16mm,

BB type punch refers to the punch diameter: 19mm, the middle mold: 24mm,

Therefore, after confirming the die type, the tablet diameter is determined.

In other words, after confirming the maximum sheet diameter, the type of die can be confirmed.


Q4How many sets of molds can be changed at most for a tablet press machine?

AChange as much as you want within the size range.


Q5What is the Customization mold requirements?

AThe pattern should not be too complicated, without sharp corners, because the more corners, the more difficult it is to process. Then the angular tool can't get in and can't process it.


Q6How often does the corrosive material of tablet pressing machine change molds?

AIt is not easy to calculate. Usually, the mold must be disassembled and the turntable must be cleaned after each batch. If you are using corrosive material for tablet press,we will use different material for the punch and for the turret. So before you order tablet press machine, youd better to tell us what material you are going to press.


Q7Can the turntable of the tablet press machine be disassembled and cleaned?

AIt can be disassembled, and the turntable can be replaced by a high-speed machine as a whole.


Q8What is the maximum thickness of ZP-420 series tablet press machine?

AThe standard is 6mm. Increasing the thickness will increase the extra cost. If it is more than 12mm, add 2,000USD. The extra cost of no more than 12mm will not increase much.


Q9Can the tablet press machine press pellets? Diameter 2mm

AYes, the tablet press machine can do this function.


Q10What is the maximum tablet size of the tablet press machine?

ADetermined according to the specific model. The standard European standard type D is 25 mm in diameter. If there are special requirements, we need to customize for you.


Q11How to ensure the uniform size of each tablet?

AMaterial fluidity, feeder form, material composition, pressure, ambient temperature and humidity, all above conditions are very critical for tablet press machine.


Q12Can the thickness of the tablet be controlled within the range of the tablet pressing machine? For example, thickness 3-4MM

AYes, the better the fluidity of the material, the better the uniformity, depending on the material, it is usually about 0.1 mm.


Q13What are the advantages of hydraulic tablet pressing machine in terms of performance and stability?

AThe hydraulic tablet press is relatively easy to adjust the pressure, but there is a risk of oil leakage. Now our GZP-Series and ZPT-Series can equip with automatic pressure adjustment system without hydraulic system.


Q14What is the difference between ZPS-8 and ZP-series tablet pressing machine?

AZPS is a European standard D-type punch with pre-pressure, main pressure and pressure sensing system. Standard touch screen control.


Q15What is a pre-compression system and what is the difference between a dual-compression single-out system?

APre-compression is mainly used to remove powder and air to prevent uneven tablet weight. After the powder is pre-pressed, it reaches the main pressure. After the main pressure, the tablet reaches the target tablet weight and hardness. The size of the main pressure can be controlled through the touch screen. The main difference between pre-compression and double-pressure single-out is that there is only one feeding port for pre-compression, and two for double-pressure single-out.


Q16What type of tablet pressing machine has a pre-pressing system?

AGZP-Series High-speed Tablet press machines are equipped with pre-compression, sub-high-speed machine ZP-540, low-speed machine ZP-420 double pressure single output.


Q17To compress double-layer tablets, the output is small and medium, which models can be selected? Can ordinary ZP series do it?

AOrdinary ZP can do it, but at least two feeding hoppers are needed to make double layers, We also call it Bi-Layer Tablet Press Machine.


Q18Can the color ratio of the tablet pressing machine be allocated as required?

AYes, it can be adjusted manually within the effective filling range of the equipment.



Q19What is the actual tablet pressing speed of TDP1.5, 5, 6 tablet pressing machine, or you call it Single Punch Tablet Press Machine?

ASingle Punch Tablet press machine production capacity calculation, Type 1.5: 4500 tablets/hour. Type 5: 4000 pieces/hour. Type 6: 2500 tablets/hour.


Q20Does the single-punch tablet press machine need regular maintenance? How to maintain?

ASingle punch tablet press machine Need lubrication and cleaning process after each production batch.


Q21The tablet size is 5mm, can the single-punch tablet press machine press aluminum powder?

AThis depends on the size and output. For a single-punch tablet machine, only the high-pressure model TDP-6 can be recommended.


Q22What should I do if there is a lot of powder coming out of the tablet pressing machine?

AThe material is made into particles with less powder to solve this problem. The equipment itself cannot solve this problem, or add a sieving machine at the back.


Q23What machine is needed to polish the tablets?

AUsually a SP-Series or GSP-Series Tablet De-dust machine is needed.


Q24What is the dust collector of the tablet pressing machine?

AThe dust collector, also called the powder remover, is used to remove and collect the excess powder that falls outside when the powder is pressed. Single-color tablet press machine requires 1 dust collector, 2-color tablet press machine requires 2 dust collectors, and 3-color tablet press machine requires 3 dust collectors.


Q25What are the difference between Central oil lubrication system and Automatic Circulation Lubrication system for tablet press machine?

ACentralized lubrication system: This requires an oil pump, which needs to be manually pressed before each batch production.

Automatic circulation lubrication system: After this equipment is turned on, it will automatically circulate lubrication.

The automatic circulation lubricating system is a fully enclosed system, with less oil loss in the circulation, and the production will not leak oil.



Q26Does the automatic circulation lubrication system have to be equipped with ZPT punch?

AZP mold punch cannot be used, and the punch height of the die is not enough. But this lubrication system Can be equipped with ZPT and IPT molds.


Q27Can the internal structure (skeleton) of the tablet press machine be color-changed?

AThe color can be changed, and yellow is a warning color.


Q28What does the sticky-punch in the tablet press machine means?

ABecause the material is too sticky, some powder will remain in the die during the tableting process, and the surface of the tablet will not be smooth. At this time, an additional powder blowing machine must be equipped for tablet better output.


Q29How to prevent the material from sticking?

ANormally the client requires to change the granulation formulation or use a powder blowing machine for better tablet output.


Q30The specific purpose of the metal detector? Why is it needed? If we dont  need it will it have any effect?

AIt is mainly used to detect metal residues in materials, because some machines may produce rust during production, and iron filings are mixed in the materials, so a metal detector machine is required. GMP regulations require the detection of metal residues.


Q31After the tablet is compressed, the hardness is not enough. What should I do if I press it lightly with my fingers?

AFirst adjust the pre-pressure, main pressure and rotation speed, etc. of the tablet press machine, and then if it fails, you can only look for the particles, such as the particles are too dry, the moisture is too small, the adhesive viscosity is not enough, and so on.


Q32What is The reason for the difference in the weight variation of the tablets after the compression?

AThis is generally because the fluidity of the particles is not very good, or it may be that the passage of the feeder is blocked, resulting in uneven feeding.


Q33Under what circumstances will vacuum feeding be used in the tablet press machine? what is the price?

AUsually large-volume tablet presses need to use a feeder. For models above ZP-31D, the price of a feeder is 3,000USD.


Q34What is the vacuum feeder of the tablet pressing machine?

AVacuum feeder is an automatic feeding device installed on the tablet press machine. Single-color tableting requires 1 vacuum feeder, 2-color tableting requires 2 vacuum feeders, and 3-color tableting requires 3 Vacuum feeder.


Q35What is The role of gravity feeding?

ARelying on the self-fluidity of the material to fill the middle die cavity for tablet compression, the fluidity of the material is required to be good.


Q36When to use closed forced feeding and when to use open type force feeder?

AUsually, the closed type is used for high-speed tablet press machine, and the open type is used for low-speed tablet press machine.


Q37What kind of materials need to be added forcibly?

AThe fluidity is poor, the diameter of the tablet is large, and the tablet press machine speed is fast.


Q38What is the function and working principle of forced feeding in tablet pressing machine?

AThere is a rotating scraper in the forced feeder to help the material be filled into the middle die, which is suitable for materials with poor fluidity and can also make the material filling more uniform.


Q39What is the difference between the requirements of the tablet press machine of the nutraceutical product factory and the pharmaceutical factory?

APharmaceutical factories have higher requirements for weight, so high-speed tablet pressing machines are equipped with automatic sampling and automatic pressure detection systems.


Q40What are the Effervescent tablet press machine requirements?

ADepending on the viscosity of the material, magnesium stearate is generally added, the surface will be smoother, but the finished product will dissolve slowly in water.


Q41Is there any other solution for effervescent tablets besides adding a powder blowing machine?

AAccording to the characteristics of the material, control the temperature (17°C) and humidity (17%), produce for 2-3 hours, and clean up once.


Q42How to solve the sticking problem of effervescent tablets?

ATwo solutions: blowing magnesium stearate on the mold, and the lower mold automatically rotates when the material is discharged to prevent sticking.


Q43How does the tablet pressing machine technically increase the pressure?

AThe stroke of the moving pressure roller.


Q44Which parts of the tablet pressing machine need to be replaced with 316L material?

ATurntable, feed hopper, discharge port.


Q45Does ordinary tablet pressing machine have inspection function?

ANo, only high-speed tablet presses have this function.


Q46What is the maximum speed of the tablet pressing machine?

ADepending on the specific material, the low speed is 25rpm, the sub-high speed is 35-45rpm, and the high speed is 80-120rpm.


Q47ZP-5D tablet pressing machine, can you provide valication documents and in what language?

AAvailable, English version.


Q48There are requirements for tablet hardness, how to test it?

AThere are requirements for hardness, and pharmaceuticals factories have the most stringent requirements, and hardness testers are usually used for sampling and testing.


Q49If the material is very sticky and magnesium stearate needs to be added, how much can be added at most?

ANational regulations do not exceed 1%.


Q50Salt cubes: 50g, 25g, 15g, what are their sizes?

A30*20mm(50g), 30*16mm(25g), 25mm diameter*8mm(15g).