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Pressability can be evaluated by the compressive strength of the tablet. Pressability is characterized by the strength of the model tablet after stress relief. The better the compressibility of the powder, the higher the strength of the tablet. If the pressability is low, the tablet is not strong and sometimes completely collapses when pushed out of the matrix. Tablet strength to a certain extent determines the technology of the granulation and tabletting process. It is established that for substances with tablet strength: above 7 kg/cm2 pure solvents are used for the granulation process; if they are coarse powders with good friability, they are pressed directly, i.e. by direct pressing; at 4-7 kg/cm2 it is enough to use conventional binders; at 1-4 kg/cm2 it is necessary to use high-performance binders. Pressability is determined by the surface energy of powder materials, their plastic deformation and brittleness. Based on the results of determining the pressability of tablet masses make a conclusion about the technology of tabletting.
Pharmaceutical Glossary
Technical specifications
The factors listed above are related in a contradictory way. For example, flowability increases with increasing particle size, but at the same particle size distribution it can be different due to different specific surface area. In almost all cases, the flowability of powders, as measured by funnel flow time, decreases with decreasing particle size due to an increase in the contact area. Spherical particles have better flowability than, for example, needle or lamellar particles. A decrease in bulk density reduces fluidity, but for the same bulk density substances will have different fluidity, as it depends on the shape of the particles and the coefficients of inter-particle friction. Most often, fluidity is determined by the rate of pouring a certain amount of material (30-100 g) from a metal or glass funnel with strictly specified geometric parameters and by the angle of natural slope.
Additional information
This technological characteristic can be used in the selection of tabletting technology. Powdery mixtures containing 80-100 % of fine fraction (particle size less than 20 microns) are poorly dosed, therefore it is necessary to carry out directed particle enlargement of such mixtures, i.e. granulation. If the content of the fine fraction is up to 15 %, it is possible to use the method of direct pressing. Pressability is the ability of powder particles to cohesion under pressure, i.e. the ability of particles under the influence of electromagnetic forces (molecular, adsorption, electrical) and mechanical meshing to mutual attraction and adhesion with the formation of a stable strong pressing. In this case, the powder particles seem to fuse, stick together, adhere to each other to form a homogeneous solid.
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Hello Roman! Thank you for the service and quality of your products. We are very happy and satisfied with the purchase! 24/08/2024 13:56
Hello Ethan, Apparently you have tested your vacuum lyophilic dryer LZY-01. Its quality is above average, it will work. We are waiting for your new applications. 24/08/2024 13:58
We received our order (BG-150 film coating boiler) in the box there was no spraying nozzle !!! 24/08/2024 14:06
Hello Lily, we checked with the factory. Your nozzle was not received in time for the shipment of the main machine. We will now deliver it to you by DHL express mail. 24/08/2024 14:10
Excuse me, I have important information, please do not deliver my shipment, automatic filling and sealing machine for glass ampoules ALG-10 to Perast, but immediately upon arrival send it to Vienna. 24/08/2024 14:16
Hello Zoey, we will try to resolve this issue for you. 24/08/2024 14:18
RZW-29 rotary tablet press in Vienna. Regards, Grace. 24/08/2024 14:26
Grace, Delivery will be made in the morning to Vienna . Please have the movers ready. The weight of the equipment is heavy. 24/08/2024 14:28
Good day, delivery time of semi-automatic drum filling machine DF-10 to Gerona, will the courier call us? 24/08/2024 14:36
Layla, good afternoon. Natalia will contact you, the shipment has passed customs clearance at the border. 24/08/2024 14:38
The MZ-10 expiration date and date handheld printer has still not been delivered. The driver did not answer and dropped calls yesterday. 24/08/2024 14:46
Hello Alexander, Transportation has advised that in the interval from 10:00-12:00 driver will definitely deliver the box to your address. We apologize. 24/08/2024 14:50
Good afternoon, we received the PR-15 powder dispenser in plastic vials, scheduled tomorrow until 16:30 to open the box and test. 24/08/2024 14:56
Noah, Good afternoon. Great news, please WhatsApp +79853643808 to send photo and video report. 24/08/2024 14:59
HX-6 Plastic Tube Filling and Sealing Machine in Granada? Price delivery terms and conditions 24/08/2024 15:06
Savannah, good afternoon, we have received your request by email. In 15 minutes we will send you our quotation for this model of equipment. 24/08/2024 15:07
PU-420 flow-pack packaging machine along with 500 kg packaging , delivery to Riverside. Please confirm the delivery time. 24/08/2024 15:16
Good afternoon Lily, your shipment has left. Arrival time between 12:00-14:00. The driver will call you back later. Please organize prompt unloading. 24/08/2024 15:18
Hello, I will quickly ask, what about BG-80 film coating boiler and HX-7 ultrasonic machine for sealing plastic tubes, contract No. 11 ???? 24/08/2024 15:26
Olivia, good afternoon! Your positions are produced by different factories, for HX-7 the factory reported that it is 90% ready, for BG-80 we are waiting for an answer in the interval from 14:00-16:00. We will report back immediately. 24/08/2024 15:29
- BOTTLE FILLING AND CAPPING EQUIPMENT
- EQUIPMENT FOR PRINTING LOGO ON TABLETS AND CAPSULES
- EQUIPMENT FOR PACKING POWDERS INTO VIALS
- EQUIPMENT FOR FILLING HARD GELATIN CAPSULES WITH POWDER
- AUTOMATIC EQUIPMENT FOR REMOVING TABLETS AND CAPSULES FROM BLISTERS
- HIGH-PRECISION DOSING MACHINES POWDER FILLING MACHINES
- EQUIPMENT FOR PACKAGING TABLETS AND CAPSULES IN PLASTIC BOTTLES
- MACHINES FOR FORMING AND FILLING PLASTIC AMPOULES
- MACHINES FOR THE PRODUCTION OF SUPPOSITORIES
- EQUIPMENT FOR FILLING CREAMS AND SEALING PLASTIC TUBES
- EQUIPMENT FOR COATING TABLETS
- EQUIPMENT FOR THE PRODUCTION OF TABLETS
- EQUIPMENT FOR WASHING AND STERILIZING BOTTLES
- SPRAY DRYING EQUIPMENT FOR SUSPENSIONS
- EQUIPMENT FOR COUNTING AND PACKAGING TABLETS AND CAPSULES IN BOTTLES
- EQUIPMENT FOR FILLING AND SEALING GLASS AMPOULES
- EQUIPMENT FOR POLISHING AND DEDUSTING TABLETS AND CAPSULES
- EQUIPMENT FOR AUTOMATIC BOTTLE FEEDING FOR FILLING LINES
- EQUIPMENT FOR SCREW FEEDING OF POWDERS
- POWDER GRANULATION EQUIPMENT
- EQUIPMENT FOR VACUUM TRANSPORTATION OF POWDERS
- AUTOMATIC PHARMACEUTICAL CENTRIFUGES
- EQUIPMENT FOR HOMOGENIZING CREAMS AND OINTMENTS
- EQUIPMENT FOR EFFICIENT MIXING OF POWDERS
- EQUIPMENT FOR PACKING TEA INTO TEA BAGS WITH THREAD AND LABEL
- EQUIPMENT FOR METAL DETECTOR IN GELATIN CAPSULES AND TABLETS
- EQUIPMENT FOR PACKAGING PRODUCTS IN A FLOW PACK
- EQUIPMENT FOR INDUCTION SEALING OF ALU FOIL BOTTLES
- EQUIPMENT FOR VACUUM PACKAGING IN PLASTIC BAGS
- EQUIPMENT FOR THE MANUFACTURE AND PACKAGING OF WET ALCOHOL WIPES
- AUTOMATIC CARTONING MACHINES
- EQUIPMENT FOR WEIGHT CONTROL AND SORTING OF CARDBOARD BOXES WITH MEDICINE
- EQUIPMENT FOR WRAPPING CARDBOARD BOXES WITH CELLOPHANE
- EQUIPMENT FOR FILLING LIQUIDS IN PLASTIC AND METAL BARRELS
- EQUIPMENT FOR PACKAGING TABLETS IN STRIPS AND TUBES
- AUTOMATIC EQUIPMENT FOR SELF-ADHESIVE LABELS ON PACKAGING
- EQUIPMENT FOR APPLYING THE EXPIRATION DATE AND BATCH NUMBER TO PRODUCTS
- EQUIPMENT FOR FILLING AND PACKAGING HERBAL TINCTURES
- AUTOMATIC EQUIPMENT FOR BLISTER PACKAGING
- EQUIPMENT FOR PACKAGING FOOD PRODUCTS IN DOY-PACK PACKAGES
- FLOW-PACK PACKAGING MACHINES
- EQUIPMENT FOR PACKAGING BULK MATERIALS IN PLASTIC BAGS
- PERISTALTIC PUMPS DISPENSERS
- DESKTOP EQUIPMENT FOR MIXING POWDERS
- SEMI-AUTOMATIC EQUIPMENT FOR FILLING GELATIN CAPSULES
- EQUIPMENT FOR THE PRODUCTION OF FISHING BOILIES
- EQUIPMENT FOR VIBRATING SIEVING OF POWDERS
- EQUIPMENT FOR LABORATORY TESTING OF MEDICINES
- SEMI-AUTOMATIC EQUIPMENT FOR BLISTER PACKAGING
- MACHINES PRINTING EXPIRATION DATE AND LOT NUMBER
- MANUAL EQUIPMENT FOR FILLING GELATIN CAPSULES WITH POWDER
- DESKTOP EQUIPMENT FOR LIQUID DOSING
- EQUIPMENT FOR MIXING LIQUIDS WITH MICROWAVE HEATING
- EQUIPMENT FOR POWDERING PHARMA RAW MATERIALS
- EQUIPMENT FOR AUTOMATIC DOSING OF CREAMS AND OINTMENTS
- DESKTOP EQUIPMENT FOR HIGH-SPEED EMULSION PRODUCTION
- EQUIPMENT FOR FILLING HARD GELATIN CAPSULES WITH POWDER
- MACHINES FOR THE PRODUCTION OF SUPPOSITORIES
- EQUIPMENT FOR POLISHING AND DEDUSTING TABLETS AND CAPSULES
- MACHINES FOR FORMING AND FILLING PLASTIC AMPOULES
- EQUIPMENT FOR WASHING AND STERILIZING BOTTLES
- EQUIPMENT FOR PRINTING LOGO ON TABLETS AND CAPSULES
- AUTOMATIC EQUIPMENT FOR REMOVING TABLETS AND CAPSULES FROM BLISTERS
- BOTTLE FILLING AND CAPPING EQUIPMENT
- EQUIPMENT FOR FILLING AND SEALING GLASS AMPOULES
- HIGH-PRECISION DOSING MACHINES POWDER FILLING MACHINES
- EQUIPMENT FOR PACKAGING TABLETS AND CAPSULES IN PLASTIC BOTTLES
- EQUIPMENT FOR THE PRODUCTION OF TABLETS
- SPRAY DRYING EQUIPMENT FOR SUSPENSIONS
- EQUIPMENT FOR COATING TABLETS
- EQUIPMENT FOR FILLING CREAMS AND SEALING PLASTIC TUBES
- EQUIPMENT FOR COUNTING AND PACKAGING TABLETS AND CAPSULES IN BOTTLES
- EQUIPMENT FOR PACKING POWDERS INTO VIALS
- EQUIPMENT FOR AUTOMATIC BOTTLE FEEDING FOR FILLING LINES
- POWDER GRANULATION EQUIPMENT
- EQUIPMENT FOR EFFICIENT MIXING OF POWDERS
- EQUIPMENT FOR HOMOGENIZING CREAMS AND OINTMENTS
- EQUIPMENT FOR VACUUM TRANSPORTATION OF POWDERS
- AUTOMATIC PHARMACEUTICAL CENTRIFUGES
- EQUIPMENT FOR SCREW FEEDING OF POWDERS
- EQUIPMENT FOR VACUUM PACKAGING IN PLASTIC BAGS
- EQUIPMENT FOR METAL DETECTOR IN GELATIN CAPSULES AND TABLETS
- EQUIPMENT FOR INDUCTION SEALING OF ALU FOIL BOTTLES
- AUTOMATIC EQUIPMENT FOR SELF-ADHESIVE LABELS ON PACKAGING
- EQUIPMENT FOR FILLING LIQUIDS IN PLASTIC AND METAL BARRELS
- EQUIPMENT FOR WRAPPING CARDBOARD BOXES WITH CELLOPHANE
- EQUIPMENT FOR PACKAGING PRODUCTS IN A FLOW PACK
- AUTOMATIC CARTONING MACHINES
- EQUIPMENT FOR APPLYING THE EXPIRATION DATE AND BATCH NUMBER TO PRODUCTS
- FLOW-PACK PACKAGING MACHINES
- EQUIPMENT FOR WEIGHT CONTROL AND SORTING OF CARDBOARD BOXES WITH MEDICINE
- EQUIPMENT FOR THE MANUFACTURE AND PACKAGING OF WET ALCOHOL WIPES
- EQUIPMENT FOR PACKAGING BULK MATERIALS IN PLASTIC BAGS
- EQUIPMENT FOR FILLING AND PACKAGING HERBAL TINCTURES
- EQUIPMENT FOR PACKAGING TABLETS IN STRIPS AND TUBES
- EQUIPMENT FOR PACKAGING FOOD PRODUCTS IN DOY-PACK PACKAGES
- AUTOMATIC EQUIPMENT FOR BLISTER PACKAGING
- EQUIPMENT FOR PACKING TEA INTO TEA BAGS WITH THREAD AND LABEL
- SEMI-AUTOMATIC EQUIPMENT FOR BLISTER PACKAGING
- SEMI-AUTOMATIC EQUIPMENT FOR FILLING GELATIN CAPSULES
- EQUIPMENT FOR MIXING LIQUIDS WITH MICROWAVE HEATING
- DESKTOP EQUIPMENT FOR MIXING POWDERS
- EQUIPMENT FOR VIBRATING SIEVING OF POWDERS
- EQUIPMENT FOR LABORATORY TESTING OF MEDICINES
- DESKTOP EQUIPMENT FOR LIQUID DOSING
- EQUIPMENT FOR AUTOMATIC DOSING OF CREAMS AND OINTMENTS
- PERISTALTIC PUMPS DISPENSERS
- EQUIPMENT FOR THE PRODUCTION OF FISHING BOILIES
- MACHINES PRINTING EXPIRATION DATE AND LOT NUMBER
- DESKTOP EQUIPMENT FOR HIGH-SPEED EMULSION PRODUCTION
- EQUIPMENT FOR POWDERING PHARMA RAW MATERIALS
- MANUAL EQUIPMENT FOR FILLING GELATIN CAPSULES WITH POWDER