GBPI HP-D1 – Automatic Bottle Cap Torque Tester (Motorized Closure Torque Apparatus)
- Precision motorized automatic bottle cap torque tester for package closure application and removal torque
- Full testing compliance with ASTM D2063, ASTM D3198, ASTM D3474, GB/T 17876, and BB/T 0025
- High-precision bidirectional digital torque sensor with measurement accuracy within ±0.5% FS
- Supports both Open Torque (Removal) and Lock Torque (Tightening) testing modes
- Motorized steady-speed cap rotation eliminating manual twisting inconsistency and human ergonomic fatigue
- Adjustable multi-jaw clamping fixture accommodating beverage bottles, pharmaceutical vials, and cosmetic jars
- Integrated microcomputer displaying peak torque curves, multi-test statistical averages, and automated printout
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The GBPI HP-D1 is an advanced, motorized automatic bottle cap torque tester engineered for the highly accurate, repeatable measurement of opening torque, tightening torque, and thread stripped-cap resistance across beverage bottles, pharmaceutical medicine vials, cosmetic jars, chemical jerrycans, and child-resistant packaging closures (CRC). Manufactured in rigorous conformity with recognized packaging quality standards—including ASTM D2063 (standard test methods for measurement of torque retention for packages with continuous thread closures), ASTM D3198, and GB/T 17876—this automated instrument serves as an indispensable tool for bottling quality assurance.
Threaded closure torque is a critical functional balance in packaging engineering. If application torque is insufficient, liquid leakage, microbiological contamination, carbonation loss, and premature cap loosening will occur during transit. Conversely, excessive tightening torque causes liner deformation, stripped threads, or consumer complaints due to unopenable caps. Functioning as a motorized automatic bottle cap torque tester, the HP-D1 securely clamps the container body and engages a motor-driven gripper to rotate the closure at a standardized, constant angular velocity, capturing real-time torque profiles without human twisting bias.
Bidirectional Motorized Operation & Peak Torque Capture
The instrument provides fully automated bidirectional testing capabilities. In removal mode, the crosshead untwists the cap to identify the exact breakaway torque and running torque peaks. In application mode, the drive tightens the closure to a programmed torque threshold or until thread slip occurs, validating automated capping head calibrations on production lines.
Universal Container Clamping & Statistical Analysis
The adjustable multi-jaw clamping bed holds round, square, or contoured containers firmly without bottle deformation. An integrated high-resolution digital processor calculates batch averages, standard deviations, and upper/lower control limit tolerances, generating comprehensive quality verification reports.
Widely utilized by beverage bottling plants, pharmaceutical packaging laboratories, edible oil packers, and closure injection molders, the HP-D1 guarantees dependable torque performance for enhanced seal security and consumer satisfaction.
GBPI HP-D1 Automatic Bottle Cap Torque Tester – Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Test Principle | Motorized Bidirectional Dynamic Torque Measurement (ASTM D2063 & ASTM D3198) |
| Applicable Standards | ASTM D2063, ASTM D3198, ASTM D3474, GB/T 17876, BB/T 0025, BB/T 0034 |
| Torque Measurement Range | 0 to 5 N·m (Standard) / Optional 0 to 10 N·m or 0 to 20 N·m |
| Torque Measurement Precision | ±0.5% of Full Scale (FS) |
| Torque Display Resolution | 0.001 N·m (High-resolution digital load cell acquisition) |
| Testing Operational Modes | Open Torque (Removal), Lock Torque (Tightening), Peak Hold, Continuous Tracking |
| Cap Diameter Clamping Range | Φ10 mm to Φ80 mm (Interchangeable rubberized gripper jaws) |
| Container Clamping Diameter Range | Φ20 mm to Φ180 mm (Universal multi-jaw bottle base clamp) |
| Rotational Drive Velocity | 5 rpm to 30 rpm (Stepless variable digital speed regulation) |
| Overall Instrument Dimensions | 480 mm (L) × 360 mm (W) × 820 mm (H) |
| Total Instrument Net Weight | Approximately 38 kg |
| Electrical Supply Requirements | AC 220V ± 10%, 50 Hz / 60 Hz Single Phase |
Key Performance Features of the GBPI HP-D1
- Motorized Constant-Speed Rotation: Eliminates manual twisting speed fluctuations and operator hand slippage, providing perfectly objective removal and application torque metrics.
- Bidirectional Open & Lock Testing: High-precision torque transducer measures both counter-clockwise opening breakaway torque and clockwise tightening torque in a single setup.
- Universal Multi-Jaw Fixture: Self-centering bottle base clamp and custom cap chucks securely grip round, oval, and rectangular containers from vials up to large gallon jugs.
- Peak Hold & Angle Tracking: Captures peak breakaway torque, continuous running torque, and rotation angle to analyze thread engagement friction.
- Built-In Statistical Processing: Automatically logs multi-sample test batches, calculating average values, standard deviations, and pass/fail thresholds against target capping specs.
- Overload Safety Protection: Software and hardware overload limits prevent sensor damage if abnormal closure jams occur during testing.
Standard Package & Accessories
| Item | Description | Quantity | Type |
|---|---|---|---|
| 1 | HP-D1 Automatic Bottle Cap Torque Tester Mainframe with Color Touchscreen | 1 Set | Standard |
| 2 | Universal Multi-Jaw Self-Centering Bottle Body Clamp Fixture | 1 Set | Standard |
| 3 | Interchangeable Cap Gripper Clamping Jaws (Standard Diameters) | 1 Set | Standard |
| 4 | Certified Precision Torque Calibration Weight and Lever Arm Assembly | 1 Set | Standard |
| 5 | Standard Power Cable and Data Acquisition Cable | 1 Set | Standard |
| 6 | Factory Calibration Verification Certificate and Operation Guide | 1 Set | Standard |
Primary Testing Applications
Beverage Bottles & Carbonated Drinks
Opening torque and seal retention evaluation for plastic screw caps, roll-on pilfer-proof (ROPP) aluminum caps, and sports caps on PET and glass bottles.
Pharmaceutical Vials & CRCs
Child-resistant closure (CRC) push-and-turn torque verification and liquid medicine bottle seal testing per pharmacopoeial packaging standards.
Cosmetics, Shampoos & Personal Care
Evaluation of flip-top cap friction, lotion pump collar tightening torque, and cream jar lids for smooth consumer ergonomics.
Household Chemicals & Edible Oils
Torque qualification for tamper-evident closures, spout caps, and heavy detergent container necks to prevent transit leakage.