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Tablet Hardness Testers

Our range of manual to fully automated testers helps to increase laboratory productivity and ensure consistent quality control in pharmaceutical manufacturing.

​​​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.​

HC 7

HC 7

Compact tablet hardness tester

Hardness | Length | Diameter | Thickness | External Scale

H-series

H-series

Manual tablet testing units

Hardness | Length | Diameter | Width | Thickness | External Scale | External Thickness

P-series

P-series

Semi-automated tablet testing units

Hardness | Length | Diameter | Width | Thickness | Weight

UTS 4.3 LAB

UTS 4.3 LAB

Automatic tablet testing system

Hardness | Length | Diameter | Thickness | Weight | Optional width

CIW 7.2 / CIW 7.3 LAB

CIW 7.2 / CIW 7.3 LAB

Automatic weighing system

Thickness | Weight

CIW 7.4 LAB

CIW 7.4 LAB

Automatic weighing and length measuring system for capsules

Weight | Capsule Length

Teledyne LABS + Kraemer Elektronik

As part of Teledyne LAB’s dedication to precision release-rate testing instruments and related analytical services, we are proud to partner with Kraemer Elektronik to offer their series of LAB.line manual and automated tablet testers. Kraemer is known for the ability to combine the testing of multiple parameters into one small footprint with high precision, ease of use, and degrees of automation suited to small, medium, and large research labs or production facilities.

By combining Teledyne LABS decades of laboratory automation expertise with Kraemer's innovative tablet testing technology, we deliver solutions that increase productivity and eliminate human error in pharmaceutical testing. Our comprehensive support and deep industry knowledge ensure that customers get the most out of their testing equipment, from initial setup through ongoing operations. Kraemer’s LAB.line testers are available through Teledyne LABS in North America, India, and China

kraemer logo

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