AT50 –

One for all your tablets.
In the lab – or online
with your press.

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The AT50 easily handles all your tablets. Designed for the demanding environments of pharmaceutical manufacturing and dusty compression rooms, the benchtop version excels with very short cycle times in your lab. Quickly test batches arriving from production or automate experimental testing in R&D. Innovative tablet alignment paired with robust Dr. Schleuniger® technology makes the AT50 an ideal instrument for both laboratory automation and online testing with your tablet press. Ensure comparability of results throughout IPC, QC and R&D.

  • 5 PARAMETERS - Fast and reliable testing of weight, thickness, width, length / diameter and hardness
  • BENCHTOP - Multi-batch testing of different products and shapes on your standard lab bench
  • TABLET ALIGNMENT - Reliable aligns oblongs, diamond- and almond-shaped tablets, convex oval shapes, hexagons, triangular shapes, and more
  • ONLINE - Connect with your tablet press for unattended online testing and automatic self-adjustment of compression parameters
  • PRECISION - Robust high-end components ensure maximum accuracy and repeatable operation
  • CLEANING - Very easy cleaning of the tester's highly accessible IP52 protected test area
  • DATA INTEGRITY - Manage all your data in full compliance with 21 CFR part 11 requirements
  • QUALIFICATION - High-precision tool for hardness adjustment & verification


Automatic tablet hardness tester AT50 for IPC and online with your tablet press inside the compression room in high-volume tablet manufacturing.
Inside the compression room of a high-volume tablet manufacturing facility, you can use the automatic tablet hardness tester AT50 for IPC and online with your tablet press.
Automatic tablet hardness tester AT50 for IPC and online with your tablet press inside the compression room in high-volume tablet manufacturing.
Utilising your tablet press in the compression room of a high-volume tablet manufacturing facility, the automatic tablet hardness tester AT50 for IPC and online is available.


Reliable tablet form positioning is achieved with the use of an automated tablet hardness tester.

One for All.

Reliable positioning of samples is at the very heart of the AT50. Knowing that some tablet shapes pose different automation challenges for separation, transport, and correct alignment, our engineers combined proven features with new innovations. The result is an extremely flexible, robust, and fast automatic testing system that handles all your tablets - including oblongs, oval tablets, and even unconventional convex, flat shapes or mini tabs.

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An integrated weighing module is directly positioned on the automated tablet hardness tester AT50 thanks to its universal high-speed feeder, which consistently separates tablets of different shapes and sizes.

Trouble-free weighing.

The AT50 features an universal high-speed feeder to reliably separate all tablet sizes and shapes directly onto an integrated weighing module. Samples are automatically centered on the vibration-resistant platform, accurately measured, and transported to the next station. Fragments or double tablets are immediately discharged.

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For extremely accurate readings, the thickness foot of the automated tablet hardness tester AT50, which has an integrated TouchControl™ sensor, keeps samples from being compressed during the measurement process.

TouchControl™ thickness.

A linear feed track prevents "rolling" of convex tablet shapes - ensuring that samples always arrive on their convex side in the thickness station for measuring. The thickness foot with integrated TouchControl™ sensor prevents compression of samples during the measuring process for highly accurate results.

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Correct tablet positioning is essential for accurate results. For maximum precision and full flexibility in handling different tablet shapes, the AT50 combines two patented tablet alignment technologies into one compact tester. With AutoAlign™, two counter-rotating rollers reliably align even the most convex shapes for with, length (diameter), and hardness (breaking force) measuring.

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SmartAlignTM easily positions all standard shapes in the width / length / hardness station. An integrated flap with tilting mechanism repeatably aligns round tablets, oblongs, and also unconventional dosage forms such as hexagonal tablets. Assign the most suitable alignment principle to your product and start testing - the AT50 can alternate between methods using SmartAlignTM and AutoAlignTM without requiring any change-over.

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AT50 automatic tablet hardness tester with magazine feeder that can hold up to ten items.

Make testing continuous.

Up to 10 different products can be loaded concurrently into an integrated SmartAdd™ magazine feeder with swivel function. Once started, the AT50 executes a series of unattended test runs. Make your testing continuous by adding new sample sets to empty magazines anytime. Benefit from built-in data integrity and network your AT50 with powerful q-doc® data management software.

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For 100% unattended in-process control (IPC), you can link the automated tablet hardness tester AT50 online to your tablet press.

For your tablet press.

The AT50 can be connected online with your tablet press for 100% unattended in-process control (IPC). Tablet samples are automatically diverted and tested in regular time intervals - without any operator required. Based on measured results, the tablet press self-adjusts compression parameters if needed.

Automated collection.

Collect samples at regular time intervals for future reference or for further testing in the lab. Tested, non-broken tablets are automatically diverted into individual bins. Different collection modes for double-sided presses and bulk collection are available. Prevent dust from entering the AT50 using a unique DustXTM brake cyclone - ideal for both single and double-sided presses.

With the DQD™, a high-precision dynamic qualification instrument, a tablet hardness tester can be adjusted and verified without removing the loadcell from the tester or needing to be placed in an upright position.

Dynamic Calibration.

The DQD™ is a high-precision dynamic qualification tool that allows both adjustment and verification of a tablet hardness tester without having to place the loadcell in an upright position or requiring removal of the tester’s loadcell. The DQD™ load cell is placed in the tester’s hardness measuring station to perform adjustment and verification of multiple points over the entire measuring range.

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Without the need for extra software, the minimum weight is determined automatically, and a thorough report of the minimum weight can be printed or saved to a USB flash drive.

Minimum Weighing.

The "Minimum Weighing Kit" is a mechanical tool for automated determination of the weighing and accuracy of the built-in Mettler Toledo balance in the AT50 tablet testing system at installation site. The minimum weight is calculated automatically and a detailed report of the minimum weight can be printed or transferred to an USB flash drive without the need for additional software.

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Manage your data.

Data management software for all methods, results, and users.

q-doc® software

All your data in one place with built-in 21 CFR part 11 compliance.