Cap torque testers for checking the correct closure of bottle, flask, can and jar caps. Cap torque testers allow for real-time, on-line verification of the correct execution of the sealing process.
Cap torque testers are used in:
- Cap Opening Torque Measurement
- Measuring the closing torque of caps
- Checks for correct sealing process
- Checking the tightness of the guarantee seal
- Checking the seal tear point
- Checking the tightening torque of cylindrical objects
- Quality control in the bottling process
- Security seal check
Torque tester for caps to measure the tightening torque, both during screwing and unscrewing, of bottle caps, drums, containers, jars, bottles, receptacles and jerry cans.
Adjustable supports efficiently hold a wide range of container shapes and sizes, while optional flat and adjustable jaws are available for special profiles. The robust aluminum design and the simple and intuitive use allow the use in the laboratory and in production environments even by non-expert personnel.
High accuracy and incredibly fast sampling rate guarantee precise and reliable test results, even in fast-acting applications directly on the production line.
Easy to use and program
Cap torque testers are essential tools to ensure precise and reliable quality control in the bottling industry. Thanks to their ergonomic design and intuitive interface, these devices offer a ease of use that reduces staff training time.
Programming is simplified by advanced systems, often integrated with compatible software, which allow quick and customizable configurations. This allows the device to be adapted to different types of caps and bottles.
Le Data readings are clear and immediate, allowing for rapid analysis of results. The robust construction ensures reliable use even in demanding industrial environments.
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What are cap torque testers used for?
Cap torque testers are essential tools for measuring tightening torque when screwing and unscrewing caps on bottles, drums, containers, jars, flasks, containers and cans.
These devices ensure that the closure is secure and complies with the required quality and safety standards, preventing leaks or contamination.
Used primarily in the food, pharmaceutical and cosmetic industries, torque transducers ensure that products are stored correctly, protecting the contents and maintaining the integrity of the packaging.
In summary, cap torque transducers are essential to ensure efficiency and safety in industrial production.
Product families
Bench torque testers for caps
- The rugged, lightweight, and compact aluminum enclosure allows for portability and use in any lab or production environment
- Quick and easy setup with the removable spindle pins and size adjustment knob allows you to test specimens with diameters from 0,77″ (19,5mm) to 7,48″ (190mm).
- 1000 units memory and free software allow you to transfer data easily.
- Seven flexible modes of operation: Track, Preset, Peak, First Peak, Auto Peak, Auto First Peak, Double Peak
- Preset operation with Pass-Fail icons allows you to quickly determine performance acceptance.
- The backlit, reversible graphical display with analog bar graph and CW/CCW directional indication allows for quick interpretation of test response. The selectable graph display mode allows you to view your performance for the entire duration of the test.
- The units are equipped as standard with USB or RS232 communication output for uploading data.
- Recharge the batteries with the supplied 120/240V AC adapter/charger or with the standard adapter for continuous line use.
- Factory calibration certificate with data guarantees performance at time of purchase
Bench torquemeters for bottles and flasks
- Quick and easy setup thanks to removable clamping pins that adjust the size of the test diameter
- The memory function allows you to store up to 1000 readings for later retrieval
- One-touch operation allows for quick reset for subsequent tests
- The large, easy-to-read LCD displays torque values in four selectable engineering units
- PC connectivity with USB interface and free DIGITORQ software enables data analysis and charting on Microsoft® Excel
- Truly portable thanks to the compact, lightweight design and internal rechargeable batteries
- Recharge the batteries with the supplied 120/240 Vac AC adapter/charger or use the continuous use adapter
- Selectable measurement modes capture average, peak open, or peak close values in a clockwise (CW) or counterclockwise (CCW) direction
- Speed up large batch testing with built-in red/green LED comparator that responds within pre-programmed tolerances
- Rugged, heavy-duty cast aluminum construction stands up to the toughest wear and tear
- The rugged, lightweight, and compact aluminum enclosure allows for portability and use in any lab or production environment
Torque tester for CAP-TT01 series caps
- Optional movable pegs and holders allow you to handle a wide range of sample shapes and sizes.
- Data output with associated value storage and zeroing on removal of the bottle cap help automate analysis processes.
- Password protection prevents unauthorized changes.
- The high-speed sampling rate of 7.000Hz accurately captures peak torque values.
- 5 selectable units of measure.
- Outputs USB, RS-232, Digimatic Mitutoyo and analog output.
- 1.000-point data memory with statistics and outputs.
- Set point indicators and programmable outputs for pass/fail determination.
- Configurable audio alarms.
- MESUR™ Lite data collection software included.
Torque meters for caps of small bottles
- Bidirectional accuracy of ± 1% of the indicated reading
- 8 selectable engineering units: Oz.in., Lb.in., Lb.ft., Nm, cNm, KgfCm, gfCm, Kgfm
- 3 operating modes: Track, Peak and 1st Peak
- Sturdy aluminum structure
- NiMH rechargeable batteries guarantee 8-10 hours of continuous use. Supplied with AC adapter / charger
- The lightweight and sturdy handle features multiple threaded holes with four fixing screws to fit a wide variety of containers.
- Includes NIST traceable calibration certificate
Torque meters for portable caps
- For plug diameters from 0,65 to 1,55 inches (16,5 - 39,0 mm)
- High-speed sampling rate of 2.000 Hz
- Single read USB data output
- Programmable set points with OK / NO OK indicators
- Battery operated or with external power supply
- Configurable audio alarms and key tones
- Real-time load bar graphs with set point indicators
- CE mark
- Made in the USA
- Peak memory for clockwise and counterclockwise readings saved and displayed
Technical insights and applications
Torque measurements of bottle caps, jars, vials and vials
The TNP series cap torque meter is a precision instrument for measuring the opening and closing torque values of caps for various applications.
The TNP torque meter is used in the quality control of products in the industry medical, pharmaceutical, industrial, research and development and countless other torque measurement applications. As a cap torque analyzer, the TNP repeatedly determines bottle closure and breakout torque.
Its large memory capacity is capable of storing 1.000 data points, including average, maximum and minimum values. A HI-GO-LO LED comparison function can be used for large batch testing to ensure overall product quality. The TNP is a portable device powered by internal rechargeable batteries or by the supplied universal AC adapter / charger.
Designed with a small footprint, it can be easily transferred between the workshop and the laboratory taking up little space during operation. The TNP torque meter comes standard with USB connection and cable for a simple PC / Software interface. In combination with the free “DIGITORQ” software, it is possible to perform statistical tests, graphs and analyzes.
Do you want help in choosing the product? Industrial features for applications directly on the production line
The high accuracy guarantees reliable results in many industrial quality control applications.
Quick and easy installation with removable mandrel pins that adjust the size of the test diameter. The memory function allows you to conveniently store up to 1000 readings for later retrieval. One-touch operation allows for quick reset for subsequent tests.
The large, easy-to-read LCD displays torque values in four selectable engineering units. PC connectivity with USB interface and the free DIGITORQ software allows data analysis and graphical representation on Microsoft® Excel. Portable tool with a compact, lightweight design and internal rechargeable batteries Charge the batteries with the included 120/240 V AC adapter / charger or use the adapter for continuous use. Selectable measurement modes allow you to capture clockwise (CW) or counterclockwise (CCW) mean, peak opening, or peak closing values. Speed up large batch tests with the integrated red / green LED comparator that responds to pre-programmed tolerances. Durable heavy-duty die-cast aluminum construction resists wear and tear.
Applications of torque transducers for caps
Cap torque meters not only measure the classic opening torque of a cap on the bottle but can also be used for applications on valves, locks, taps or objects that require the rotation of a spherical or cylindrical element for their operation.
Below are some typical applications of cap torque transducers:
- Measurements on bottle caps for drinks, spirits, water, wine, fruit juices, milk and food products in general.
- Measurements on bottle caps for the pharmaceutical industry
- Measurements on caps for cosmetic and beauty products.
- Measurements on caps with safety closures for the chemical and pharmaceutical industry.
- Measurements on caps for food containers, drums or bags, both for end consumers and for the processing industry
- Measures on caps or products for the preservation industry (preserves, jams, long-life products)
- Measurements during the production of caps and accessories (safety closures) for the verification of production batches of caps.
- Torque measurements of taps and manual valves with rotation of knobs or levers
- Force measurements of opening and closing of locks
- Opening force measurements of padlocks and security locks
Easy and quick to use
Cap torque transducers are easy to use both on the workbench at the production line and in the metrology laboratory.
Furthermore, the table support is made in a stable way and above all not influenced by the force applied to the cap during the testing operations. The robust structure allows the test to be carried out even on large bottles and containers or with caps of particularly large diameter.
Simply place the bottle on the table, close the retaining pins and then reset the display. As soon as you try to unscrew the cap, the instrument starts recording data. When the peak of the safety ring tearing is reached, and therefore the torque decreases, the instrument stores the maximum torque exerted during the opening cycle.
The process can be repeated as many times consecutively and store all the obtained data in an external Excel file for subsequent analysis and statistical calculation.
Calibration report
Cap torque testers are measuring instruments for certifying and controlling torsional force. All measuring instruments must be certified and checked periodically to ensure that the measurement performed is correct.
Certification consists in comparing the value read by the instrument with the reference value of another instrument or of a sample.
Both standard calibration certificates, which are produced in ISO17025 certified laboratories, and Accredia calibration certificates can be managed.
Practical use of cap torque testers
CAP-TT01 series torque transducers for caps allow the easy and precise measurement of the torque required to start or unscrew the cap of bottles, flacons, jars, tubes and jerry cans.
The measurement takes place instantly and it is possible to memorize the peak value obtained. The peak value is particularly used to check the "breakout torque" of seals or the point of maximum stress of the cap.
The high sampling frequency allows to obtain a reliable peak measurement even if the event is short-lived.
Features of CAP-TNP cap torque transducers
The accuracy of ± 0,5% FS ensures accurate and easily certifiable results.
Variety of applications met with ranges from 4,4 in-lb (50 N-cm) up to 88,5 in-lb (10 Nm).
Quick and easy setup with removable spindle pins that adjust the size of the test diameter.
The memory function allows you to conveniently store up to 1000 readings for later retrieval.
One-touch operation allows for quick reset for later tests.
The large, easy-to-read LCD displays torque values in four selectable engineering units.
PC connectivity with USB interface and free DIGITORQ software enable data analysis and graphing on Microsoft® Excel.
Truly portable with a compact and lightweight design and internal rechargeable batteries. Charge batteries with the included 120 / 240V AC adapter / charger or use the adapter for continuous use.
Selectable measurement modes allow for clockwise (CW) or counterclockwise (CCW) average, peak opening or peak closing values to be acquired.
Accelerate large batch testing with the integrated red / green LED comparator that responds to pre-programmed tolerances.
Durable, heavy-duty and wear-resistant aluminum construction.
Highly readable front display
The instrument display, located on the front, allows easy reading of the measured value and the functions that have been activated. The backlighting allows viewing even in poorly lit environments or directly on the line edge.
The keyboard allows the selection of the desired function: continuous tracking of the measurement, storage of torsion peaks both in opening and closing, possible storage of the second peak (only on some instruments).
All instruments are designed for industrial production and testing applications, are robust and suitable for field applications.
External connections
On the rear of the instrument there is a connector for connecting USB peripherals, peripherals with serial ports and Digimatic.
It is also possible to generate an analog signal for connection to data acquisition systems.
Printers or data acquisition devices can be connected to the Digimatic connections.
Acquisition software
The supply proposal may also include acquisition software that allows the display of measurements on a PC, the acquisition of torsion curves and the recording of data in Excel format.
The software allows the display of torsion curves and the management of archived numerical data. All data can be collected in Excel worksheets or in CSV format files for consultation by other statistical analysis or process control software.
Accessories for TT-01 Series Cap Torque Meters
Portable printer
Suitable for real-time printing of the results obtained from the measurement. With the printer it is also possible to perform statistical calculations on batches of measurements (minimum value, maximum value, average value).
The printing of the printout of the measurements in real time allows a rapid certification of the production batch.
Adapters for square bottles
The adapters for square bottles also allow the measurement of bottles and containers that do not have a cylindrical shape or that have irregular shapes. The screw adjustment allows a quick adaptation to the type change.
Adapters with adjustable jaws
Adapters with adjustable jaws allow the measurement of bottles with irregular shapes or that with standard adapters do not maintain a stable position.
The two parts in contact with the bottle are adjustable and allow perfect adaptability on containers with irregular or non-cylindrical profiles.
Weight certified for calibration
The certified weight for calibration allows you to quickly and immediately check the conditions of correct operation of the cap torque transducer.
The value found with the certified weight can be used for a periodic calibration check or for an internal certification of the instrument.
Tool fixing kit
For the use of the certified calibration weight, a fixing kit is available that allows you to position the torque transducer for caps in an optimal position for positioning the calibrator.
The fixing of the torque transducer for caps takes place on a horizontal surface, a table or a shelf.
Closing pegs
Different versions of fixing pegs with different lengths are available depending on the need to fix bottles with different heights.
Standard rungs are 31mm long. Pegs of 63 mm and 100 mm in length are also available.
Torque gauges for caps with customized jaws or made according to specific needs are available.
Calibration report
A calibration report is available on request which allows you to certify the correct functioning of the instrument.
Carrying case
A carrying case for the instrument is available.
Made of plastic material and with the inside in foam material, this case allows the transport of the torque transducer for caps in a safe way.
DataSink 100 software
If you need special software, with special acquisition functions or integrated in the management system (AS400 connection, Oracle database connection, connection with Access or MySQL), it is possible to create a customized application supplied with "turnkey" mode.
Typical values of torque
The following table shows the typical torque values for glass and plastic bottles with different types of common caps. The standard value (C) is closing, the standard value (A) is opening.
All values are expressed in Ncm
| Cap diameter (mm) | Phenolic / Urea stopper on glass bottle | Phenolic / Urea cap on plastic bottle |
| 15 | 90 (C) -45 (A) | 67 (C) -33 (A) |
| 18 | 101 (C) -56 (A) | 79 (C) -45 (A) |
| 20 | 112 (C) -56 (A) | 90 (C) -45 (A) |
| 22 | 124 (C) -67 (A) | 101 (C) -56 (A) |
| 24 | 135 (C) -67 (A) | 112 (C) -56 (A) |
| 28 | 158 (C) -79 (A) | 135 (C) -67 (A) |
| 33 | 203 (C) -101 (A) | 169 (C) -79 (A) |
| 38 | 225 (C) -112 (A) | 192 (C) -79 (A) |
| 43 | 248 (C) -124 (A) | 203 (C) -101 (A) |
| 48 | 271 (C) -158 (A) | 225 (C) -112 (A) |
| 58 | 316 (C) -158 (A) | 271 (C) -135 (A) |
| 70 | 395 (C) -203 (A) | 316 (C) -158 (A) |
| 89 | 508 (C) -248 (A) | 406 (C) -208 (A) |
| 100 | 564 (C) -282 (A) | 451 (C) -225 (A) |
| Cap diameter (mm) | PE / PP cap on glass bottle | PE / PP cap on plastic bottle |
| 15 | 135 (C) -79 (A) | 90 (C) -45 (A) |
| 18 | 146 (C) -90 (A) | 101 (C) -56 (A) |
| 20 | 169 (C) -101 (A) | 112 (C) -56 (A) |
| 22 | 192 (C) -112 (A) | 124 (C) -67 (A) |
| 24 | 203 (C) -124 (A) | 135 (C) -67 (A) |
| 28 | 237 (C) -135 (A) | 158 (C) -79 (A) |
| 33 | 271 (C) -158 (A) | 192 (C) -90 (A) |
| 38 | 327 (C) -192 (A) | 214 (C) -101 (A) |
| 43 | 372 (C) -225 (A) | 248 (C) -124 (A) |
| 48 | 293 (C) -248 (A) | 271 (C) -135 (C) |
| 58 | 497 (C) -293 (A) | 327 (C) -158 (A) |
| 70 | 587 (C) -361 (A) | 395 (C) -192 (A) |
| 89 | 734 (C) -451 (A) | 508 (C) -248 (A) |
| 100 | 847 (C) -429 (A) | 564 (C) -282 (A) |
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