Automatic Cap Torque Tester
A Bottle Cap Torque Tester is a specialized device used to measure the torque applied to bottle caps during sealing or opening processes. Its primary purpose is to ensure that bottle caps are properly tightened to prevent leakage or contamination of the contents within the bottle. Conversely, it can also be used to measure the torque required to open bottle caps, which is useful for assessing consumer usability and product quality.
Applications
Basic Applications：
Bottle Packages
Application and removal torque test of the bottle caps for bottled packages for food, pharmaceuticals, e.g. beverage or tablet bottles
Flexible Tube Packages
Application and removal torque test of flexible tube packages for food, pharmaceuticals and cosmetics, e.g. eye-drop, hand cream and shoe polish
Extended Applications：
Screws
Application and removal torque test of the screws
Vacuum Flasks and Vacuum Cups
Application and removal torque test of the caps of vacuum flasks and vacuum cups
Standards
ASTM D2063:Standard Test Method for Seal Strength of Flexible Barrier Materials
ASTM D3198:Standard Test Method for Blocking Load of Flexible Thermoplastic Films and Sheeting
ASTM D3474:Standard Specification for Pressure-Sensitive Tape for Packaging, Box Sealing
BB/T 0025:Biaxially Oriented Polypropylene Pearlescent Film
BB/T 0034:Biaxially Oriented Polypropylene Film for Packaging
GB/T 17876:Packaging Containers - Plastic Child-Resistant Caps and Closures
Technical Parameters
| Items | Specifications |
| Load Cell Capacity | 5 Nm (Standard) 20 Nm, 40Nm (Optional) |
| Accuracy | 0.5% FS |
| Resolution | 0.001 Nm |
| Twisting Speed | 10 r/min (adjustable) |
| Clamp Force | Adjustable according to the sample |
| Body Clamp Range | Φ5 mm ~Φ190 mm (Diameter) Φ10 mm ~Φ120 mm (Diameter) (customizable) |
| Data Numbers | 1 ~ 999 (No up limits on professional software,and multiple units available.) |
| Gas Pressure | 0.4 MPa ~ 0.6 MPa (outside of supply scope) |
| Port Size | Ф6 mm PU Tubing |
| Power Supply | AC 100-240V 50/60Hz (can be changed to local requirement) |
| Instrument Dimension | 350 mm (W) x 620 mm (D) x 770 mm (H) |
| Net Weight | 48 kg |
Features
Moveable 1.25″ (31 mm) length posts accommodate a wide range of sample shapes and sizes
Available extended post lengths and other gripping options
USB, RS-232. Mitutoyo, and analog outputs
Automatic output, data storage, and zeroing upon bottle cap removal helps automate testing processes
First / second peak detection for slip and breakaway torques in tamper evident closures
1.000-point data memory with statistics and outputs
Password protection prevents unauthorized changes
Programmable set point indicators and outputs for pass/ fail determination
High-speed 7.000 Hz sampling rate accurately captures peak torque values
Configurable audio alarms and key tones
5 selectable units of measurement
Lite data collection software included
Accessoriess
Standard configuration: Main unit, clamping rods (4), clamping blocks (1 pair), calibration components (excluding calibration weights), Φ4mm polyurethane tubing (2m)
Optional: Mini printer, professional software, air compressor, GMP computer system requirements, DataShield™ (Note 3)
Remarks: The air supply interface of this unit is a Φ4mm polyurethane tubing; the air supply is to be provided by the user.
Test Procedures
1. Equipment Preparation: Connect the power and air supply, turn on the machine, and preheat the equipment.
2. Sample Fitting: Adjust the clamps (bottle body clamp/cap clamp) to the corresponding range according to the bottle body and cap dimensions.
3. Sample Clamping: Fix the sample to be tested (bottle + cap) in the clamp and tighten it using the pneumatic device.
4. Parameter Setting: Select the corresponding torque range and set the test mode (tightening/opening torque).
5. Start Testing: Run the automatic testing program; the equipment completes torque detection and records the data.
6. Result Viewing: Export the test data and view the torque results through the statistical function.
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