Choose the Laboratory Balance that Meets Your Weighing Needs
Sartorius lab balances are equipped to meet the highest standards of speed, reliability, compliance, and safety. Besides designing our balances to deliver the best weighing results, we at Sartorius focus even more on integrating them into your laboratory workflows to make your processes more efficient, reliable, and ergonomic. Sartorius laboratory balances offer high levels of accuracy and precision in analytical testing and quantitative analysis. Suitable for use in laboratories, manufacture according to pharmacopeias and quality control, as well as academic research and any other professional use.
Introducing: Cubis® II Ultra-High Resolution Semi-Micro Balance
Experience the fastest stabilization time under everyday lab conditions, complimented by low minimum sample weight, and the ability to seamlessly integrate with connectivity solutions.
Newly Designed: Quintix® Pro
Redefining Usability, Flexibility & Sustainability
Get the performance you need with a versatile balance that can handle a wide range of tasks. Moreover, it's a cost-effective solution for budget-conscious labs, such as startups or those operating with limited funds.
Laboratory Balance Product Categories
Now Available: Cleaning QApp Software on all Cubis® II MCA Balances
Cleanliness has high importance for laboratory balances. Thanks to the brand-new cleaning app, available on all Cubis® II balances, keeping your balance clean is now a seamless part of your daily routine. We offer solutions for routine and advanced cleaning processes, and the documentation of these steps helps integrate cleaning into SOPs and audit trail reports.
Cubis® II
The Cubis® II platform is a completely configurable, high-performance portfolio of both lab weighing hardware and software. Cubis® II is the only laboratory balance with fully customizable hardware, software, and connectivity. It offers modern user interfaces, pharmaceutical and GxP compliance, including data handling, data integrity and connectivity, ergonomic sample handling, easy process integration, and unlimited communication at the highest level of accuracy and precision.
Cubis® II Ultra-High Resolution Balance
Ultra-High Resolution balances are designed to meet the evolving needs of scientists working in analytical laboratories. In addition to the existing compliance and connectivity features of our premium Cubis® II balances, the new Ultra-High Resolution balances (Semi-Micro and High-Capacity Micro Balances) deliver excellent weighing accuracy under the real-life conditions found in a laboratory. The new software-guided cleaning process fully supports compliance needs during routine cleanings. Added software and hardware capabilities enable next-level upgradability when the need arises, providing users with complete flexibility and investment security.
Quintix® Pro
Redefining the standard in lab weighing with the Quintix® Pro. This balance not only meets your expectations but exceeds them providing premium features at a cost effective price point, for budget-conscious labs, such as startups or those operating with limited funds.
Entris® II
No matter what you’re weighing, the new Entris® II is always the right choice. Offering unrivaled value at a budget price, this is the only balance in its class featuring isoCAL, LED touch technology and 12 builtin applications. Backed by almost 150 years of German engineering expertise, and available in 40 different models, you’ll easily find an Entris® II balance that exactly meets your specific weighing needs.
Practum®
The advanced, ergonomic design and intuitive touch-screen user interface of Practum® will give you the perfect support you need in your daily weighing tasks. Rely on consistent readings and excellent repeatability ensured by Sartorius quality and technology developed and designed in Germany.
Applications for Laboratory Balances
Moisture Determination
No matter, if you work with chemical, cosmetic or pharmaceutical products, buildings materials, pulp and paper, paints and coatings or animal feed - the moisture or water content has a decisive impact on price, processability and quality, ranging from raw materials to final products.
Pipette Calibration
Fast, user-friendly and portable solutions provide the best features for accurate gravimetric testing of any pipette size.
Paint Mixing
Paint mixing - made easy, reliable, accurate and fast.
HPLC Sample Preparation
With a weighing accuracy of up to five decimal places and a 48,000-step resolution, your solvent will be dispensed automatically.
Frequently Asked Questions
The six different types of balances offer by Sartorius include: ultra-micro lab balance, micro lab balance, semi-micro lab balance, analytical lab balance, precision balances and scales, and high capacity balances and scales.
Readability is the smallest difference in mass that can still be read on a balance/scale. As an example, in the case of an analytical balance, the readability is 0.0001 g.
The ability of a weighing instrument to display corresponding results under constant testing conditions, when the same load is repeatedly placed onto the weighing pan in the same manner. In general, the standard deviation or the difference between the largest and the smallest result for a defined number of measurements is used to specify this quantity.
Some balances are equipped with internal motorized calibration function for an easy calibration by one touch. Internal calibration can be even easier if the balance is equipped with the isoCAL feature, where internal calibration will be launched automatically when environmental conditions change. This feature is very convenient to have in a micro, semi-micro, analytical or precision balance. Depending on the balance readability, usually for 4-, 5-, 6- and 7-digit balances it is launched every four hours, for lower resolution balances it is every six hours. However, time to time, external calibration is recommended as well. External calibration required more effort on the balance user. In case the calibration may need to be traceable for ISO purposes or to meet other requirement, certified weight should be used to calibrate the balance. A traceable calibration can be done through service from the balance manufacturers (calibration certification), or it can be done by the balance owner if they buy a certified weight which will be used in the calibration process.
Resolution is a term that has not yet been precisely standardized. It is commonly used to express the quotient of the maximum capacity and the readability (“The balance has a resolution of 100,000 digits”) or for readability (“The balance has a resolution of 0.1 g”).
Stabilization time is the time between complete placement of an object / sample on the weighing pan and display of the final result. It can be influenced by setting the appropriate digital filter parameters.
Balances made with PBT plastic parts are chemical resistant and can be cleaned using acetone. Balances that have plastic parts are made of ABS can be cleaned with a damp cloth soaked in water. Be sure to wipe the balance with a soft, dry cloth after cleaning.
Laboratory balances and scales from Sartorius can be used from 5 degrees up to 40 degrees. Most important is that the balance will have performed the internal adjustment for that environment temperature. If it changes, the balance need to be adjusted accordingly. Constant temperature is always preferred. Best to have the isoCAL set at automatic. This way the balance will always be fit for purpose.
Normally traceable calibrations weights are used. It is widespread, that weights regarding to the OIML R 111-1 are used, which are divided in different classes E1, E2, F1, F2 and M1-3 with their permissible errors.
The United States Pharmacopeia (USP) Chapter 41 does not reference minimum sample weight any longer, rather it defines repeatability and accuracy, which is of crucial importance to determine the operating range of a balance. So, the term minimum weight has been replaced with operating range minimum. An accuracy of 0.10% is used to calculate this figure.
Taring means zeroing the display when the balance is loaded.
This function allows the weight readout of an empty container to be reset to zero and the net weight of a sample to be read after the container has been filled. A subtractive taring device reduces the available weighing capacity by the tare value.
Zero the device is only possible when the weighing pan is empty.
Calibration is essential in the medical device industry to ensure devices deliver precise dosages. Lab balances are key for calibrating devices like infusion pumps, IUDs, and DES:
- Infusion Pumps: Lab balances measure fluid weight to calibrate flow rates, adjusting the pump to match the intended volume.
- IUDs: Balances determine the hormone release by weighing IUDs before and after exposure to simulated uterine conditions.
- DES: Balances weigh stents pre- and post-drug coating to check drug load and monitor release kinetics by weighing solutions at intervals.
Precision in lab balances is vital to maintain medical device accuracy, requiring strict adherence to calibration protocols for patient safety.
