New XPR Automatic Balance Operates Inside a Glove Box or Safety Enclosure

Press Release Summary:

  • Reduces exposure risk while ensuring the exact precision and improved throughput required by modern workflows
  • Supports accuracy, repeatability and safety by dosing from an enclosed head into target vials
  • Sample sizes can be reduced by up to 30% to save up to 75% of expensive or rare samples

Original Press Release:

METTLER TOLEDO XPR Automatic Balance Product Launch

Radically Improve Your Dosing Accuracy, Productivity, and Safety:

The New XPR Automatic Balance.

Columbus, Ohio (April, 2021) – Today’s laboratories are handling higher throughput and smaller sample sizes than ever before. The new METTLER TOLEDO XPR Automatic Balance, which incorporates state-of-the-art active machine learning, continues to revolutionize powder weighing to deliver the accuracy, safety and ease-of-use the current marketplace demands.

Safety when weighing potentially toxic or active substances is of paramount importance in industries such as chemical, pharmaceutical and biotechnology. However, the need for safety does not eclipse the need for both accuracy and speed. The XPR Automatic Balance significantly reduces exposure risk while ensuring the exact precision and enhanced throughput required by modern workflows.

XPR Automatic supports accuracy, repeatability and safety by dosing from an enclosed head into target vials or capsules with openings as small as six millimeters in diameter. It then uses live feedback to learn a substance’s flow characteristics and improve dispensing efficiency in real time. This can be particularly effective when combined with a sample changer that can process as many as 30 samples in one automated run.

Direct dosing reduces the kind of airborne exposure risk to lungs and eyes that spatula use represents. Spill risk is also eliminated, as is the need to repeatedly open the balance door and transfer compounds from the main container into a secondary container. The dimensions of the XPR Automatic Balance mean it can be operated with ease inside a glove box or safety enclosure, further enhancing containment.

The balance also allows manual operation. When combined with automated liquid dosing, precise concentrations are delivered every time, because solvent is added automatically based on the actual weight of weighed-in solids. This means manual powder dosing can be approximate, eliminating time-consuming scooping in or out to meet targets. Moreover, sample sizes can be reduced by up to 30% to save up to 75% of expensive or rare samples and further decreasing exposure potential.

All of the above help to reduce exposure and contamination risk, significantly increasing lab safety while maintaining goals of efficiency and accuracy. Learn more about the XPR Automatic Balance today!


METTLER TOLEDO is a leading global manufacturer of precision instruments. The Company is the world’s largest manufacturer and marketer of weighing instruments for use in laboratory, industrial and food retailing applications. The Company also holds top-three market positions in several related analytical instruments markets and is a leading provider of automated chemistry systems used in drug and chemical compound discovery and development.

Additional information about METTLER TOLEDO can be found at

Kate Kraley, Marketing Communication Specialist

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