​​​Hard​ness Test​​ for Tablets​​​

Teledyne LABS offers both manual and automated tablet hardness testers. ​​​Tablet hardness testing​ is a method of determining mechanical properties of a drug product, typically oral dosage forms such as a solid dose tablet. Tablet​ breaking force (commonly called tablet hardness) is a crucial characteristic in the manufacture of solid dose formulations. Tablet hardness testing is a major step in tablet consistency and quality control. ​

Standard Tablet Hardness Ranges

Most pharmaceutical tablets require a hardness range of 4 to 10 kiloponds (kp), or 40 to 100 Newtons (N). This range ensures tablets are strong enough to withstand packaging and shipping, while still maintaining proper disintegration properties for effective drug delivery. Regular testing throughout production helps maintain this optimal balance. While this range serves as a general guideline for most solid dose formulations, some medications may require hardness levels outside this range based on their unique delivery mechanisms, active ingredients, or specific handling requirements. Consistent monitoring of tablet hardness supports quality control standards and helps manufacturers meet regulatory requirements in pharmaceutical production.​

Teledyne LABS Tablet Hardness Testers

Teledyne LABS' Hanson brand offers a manual, semi-automated, and fully automated tablet hardness testing machine for virtually any hardness testing application. Determining tablet breaking force is imperative to the research, development, and manufacturing process. With Teledyne LABS, you get accurate, consistent test results and a built-in digital display providing hardness value and other tablet and capsule attributes in detail. Our instruments also test tablet and capsule size and weight. We’re confident you’ll find a tablet hardness tester in our line that works for you.​

Frequently As​​ked Questions

How do you test tablet ha​​rdness?

Tablet hardness is tested in the pharmaceutical industry to ensure that a medication in tablet form can withstand the manufacturing and shipping processes without breaking. A hardness tester might apply pressure directly to the tablet. A snap or bending test might also be conducted.

What factors affect ta​​​blet hardness testing results?

Tablet hardness testing results can be influenced by tablet shape, size, and composition, as well as testing conditions like compression speed and force application. Using automated testing systems helps eliminate operator variability and ensures consistent results across batches.

What is the name of​​ the tablet hardness tester for tablets?

The Kraemer Elektronik tablet testing machine incorporates a patented feeder chute. Tablets are transported along testing points that measure weight, length/diameter, width, capsule and tablet hardness, and thickness.

What i​​s the most accurate tablet hardness tester?

Source: Wikipedia
Kraemer Elektronik's tablet hardness testing system was the first automatic tablet hardness testing machine for auto-regulation at tablet presses. It was invented by German mechanical engineer, Norbert Kraemer.  

Where can I learn more?

To learn more, see  Hardness Test: Basic Principles and Methods