SOTAX Group Tablet Hardness Testing

Solid dosage form testing

SOTAX Group is a global leader in solid dosage form testing and specialises in complete tablet hardness testing solutions for measuring weight, thickness, diameter and tablet hardness (breaking force).

With a proven track record of more than 15,000 testers, our automatic and manual tablet hardness testers are used in research laboratories, in-process and quality control departments, and manufacturing plants of pharmaceutical companies all over the world. The range of products also includes disintegration testers, dissolution equipment, friability testers, tap density testers and torque meters.

Manual tablet hardness testers

Whether you simply need to measure tablet hardness (break force) or do complete testing of weight, thickness, diameter and hardness, the 8M tablet hardness tester is a versatile yet easy-to-operate multi-measurement system for virtually all tablet types and shapes. A built-in report writer gives you the flexibility to print simple or complex reports, including graphs, by connecting a printer. Alternatively, the 8M can also be operated with user-friendly PC software that allows fully 21 CFR, Part 11 compliant data analysis and storage of test results or batch reports.

Semi-automatic tablet hardness testing

Manual testing of weight, thickness, diameter and hardness always requires an operator to position the tablet in the individual measuring instruments. The modular HS8 handling system further extends the functionality of the manual 8M tablet hardness tester, saving time and money: the operator simply places the tablets to be tested on a round magazine and presses the start button. The HS8 individually picks up the test samples and automatically delivers them to each of the four measurement stations. All functions of the 8M are retained with the added benefit of automatic feed, patented contact-free thickness measurement and an integrated precision balance (scale).

Automatic tablet hardness tester

The AUTOTEST 4 is a fully automatic tablet testing system for measuring weight, thickness, diameter and hardness of tablets, capsules and oblong-shaped products. The patented SmartRake™ system guarantees precise positioning of tablets and maximum repeatability, making the AUTOTEST 4 the most flexible automatic tablet hardness tester on the market.

With software interfaces to all major brands of tablet presses, the AUTOTEST 4 can be fully integrated for in-process control in the compression room or used stand-alone with a user-friendly PC software (fully 21 CFR, Part 11 compliant). Its solid design and trouble-free operation have made the AUTOTEST 4 the preferred choice of both operators and quality managers for the production floor as well as in research and laboratory environments worldwide.

Automated testing of pharmaceutical tablets for real-time release

SOTAX Group has successfully realised a new approach in automated testing of pharmaceutical tablets by combining proven automation principles for measuring weight, thickness, diameter and hardness with innovative NIR technology for rapid, non-destructive potency and content uniformity determination. Long waiting times are virtually eliminated and produced products can be released immediately. The cost savings realised with this ‘real-time release’ immediately boost the productivity and competitiveness of any tablet manufacturing plant, making your business fit for the future.

Solid dosage form testing equipment

A comprehensive range of highly efficient devices completes the range of solid dosage form testing equipment. Conforming to all current EP and USP specifications, the dissolution, disintegration, friability and tapped density testers allow economic quality control without compromising quality.

Cap torque measuring

The TM200 torque-measuring device is specifically designed to work on bottle caps and provides reliable assurance and documentation of opening or closing torque. Even child-resistant caps requiring downward force during the opening operation can be tested.

Tablet testing services

Competent and friendly local service, and training and support when you need it, are key to our business. Our global network of qualified service engineers in more than 40 countries assists you in ensuring the smooth running of your business – wherever you are. We offer:

  • Free tablet sampling service
  • Customised solutions
  • Installation and verification
  • Validation services and professional documentation
  • Customised operator training
  • Calibration services
  • Preventive maintenance
  • Repair services

Quality tablet hardness testers

The name SOTAX Group is recognised as a mark of quality throughout the world. Owning a SOTAX Group tablet tester is a secure investment in your company’s future. Our testers give you accurate, consistent test results year after year and provide you with data you can depend on. Precision results are presented in formats that regulatory agencies around the world readily recognise and accept.

Manufactured in Switzerland with a strong commitment to reliability, quality and local service support, SOTAX Group strictly adheres to international standards and regulations, is ISO 9001:2000 certified and continuously strives to improve for the benefit of our customers.

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Press Release

SOTAX and Waters Corporation Sign Co-Marketing and Re-Seller Agreement

SOTAX Group has announced that it has entered an agreement with Waters Corporation.


Nordring 1

4147 Aesch


+41 61 487 54 54

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Press Release

14 November 2016

SOTAX Group has announced that it has entered an agreement with Waters Corporation.

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11 June 2012

Dr. Schleuniger has released a free white paper detailing the innovations in tablet testing that they will be presenting at ACHEMA 2012.

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21 May 2012

The SmartTest 50 sets new standards in semi-automatic testing of up to five physical parameters (weight, thickness, width, diameter / length and hardness) of virtually all tablet shapes with one single unit. In full compliance with current Pharmacopeia requirements, the system offers highest precision, flexibility and exceptional user-friendliness.

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9 February 2012

The new DisiTest 50 disintegration tester from Dr Schleuniger Pharmatron incorporates innovative induction heating technology and combines it with the benefits of automation to realise cost savings by significantly streamlining the disintegration testing process.

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25 May 2011

The MultiTest 50 is manual tablet testing system that offers the highest precision, flexibility and exceptional user-friendliness. From basic tablet hardness tests to complete measuring of up to five parameters, including professional reporting, physical testing has never been easier. Next to fas

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28 March 2010

For 30 years Dr Schleuniger Pharmatron tablet-testing machines have been part of the standard equipment in the pharmaceutical industry. Over 15,000 Schleuniger machines are in use throughout the world. Dr Schleuniger Pharmatron offers a complete range of tablet-testing machines for full

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Regional Offices


Nordring 1

4147 Aesch


+41 61 487 54 54
Dr Schleuniger Pharmatron, Inc.

25 Sundial Ave, Suite 315


NH 03103


United States of America

+1 603 645 6766 / +1 800 641 6766 (Toll Free) +1 603 645 6726

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