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Weights and masses in compliance with OIML R111

Zwiebel is one of the World’s leading manufacturers of precision weights and masses that comply with the international R111-2004 recommendation of the International Organisation for Legal Metrology (OIML). Zwiebel laboratories are COFRAC accredited (2-1218), issuing COFRAC certificates of calibration that cover the basic reporting of conventional mass correction, uncertainty and traceability information.

Weights and masses are made from stainless steel, brass or cast iron and are available from 0.1 mg to 2 tonnes in every class of precision (E0 to M3), being specified in sectors that include Aeronautics, the Food Industry, Chemicals and Pharmaceuticals.

ZWIEBEL is also there to assist you in defining, studying and producing your specific weights and masses.

Our experience enables us to propose any type of material, shape and composition, finish, tolerance, identification and customization of special weights. We can also provide accessories and packaging for our products.




COVID-19: Staying safe whilst we remain open


We continue to follow the latest Government advice to protect the wellbeing of our staff and to mitigate any supply issues to our customers. We’d like to reassure customers that we have, and will continue to take all necessary measures to ensure that we can provide continuity of service to you during the COVID-19 outbreak.


You can contact us by phone: 045 896660, or email:

Our business hours: Monday-Friday 8.30am-5pm