Labthink CZY-8SB Adhesion Tester for Transdermal Patches and Topical Plasters
| Brand | Labthink |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Region Classification | Domestic (China) |
| Model | CZY-8SB |
| Price Range | USD 1,400 – 7,000 |
| Instrument Category | Holding Power Tester |
| Model | CZY-8SB |
Overview
The Labthink CZY-8SB Adhesion Tester is a precision-engineered instrument designed to quantify the holding power (also known as “creep resistance” or “shear adhesion”) of transdermal patches, medicated plasters, cooling gels, and other pressure-sensitive adhesive (PSA) medical devices. It operates on the principle of vertical shear loading under controlled environmental conditions—consistent with the fundamental mechanics described in ISO 29862:2017 and aligned with the methodology specified in the Chinese Pharmacopoeia (2015 Edition), Chapter 0952 “Adhesive Strength Test”. In this test configuration, a standardized specimen is affixed to a polished stainless-steel test plate (Type C), mounted vertically, and subjected to a defined static load (1000 g ± 10 g, including loading block mass). The instrument measures either the displacement of the specimen after a prescribed duration or the time required for complete detachment—providing objective, reproducible metrics for regulatory submission and QC release testing.
Key Features
- Eight independent test stations enable parallel evaluation of multiple samples—significantly improving throughput for batch verification and stability studies.
- Dual-mode operation: supports both time-based hold testing (displacement at fixed duration) and displacement-triggered failure timing (time-to-failure), configurable per station.
- Industrial-grade capacitive touchscreen interface with intuitive icon-driven navigation; supports firmware over-the-air (OTA) updates and remote diagnostics via Ethernet or USB.
- Bilingual (English/Chinese) UI with multi-level user authentication (administrator, operator, auditor) and password-protected parameter modification—designed to meet ALCOA+ data integrity principles.
- Integrated environmental monitoring: real-time display and logging of ambient temperature (°C/°F selectable) and relative humidity (%RH); optional thermostatic chamber integration enables precise control at standard test temperatures (e.g., 23 °C ± 1 °C or 38 °C ± 1 °C) using Labthink’s proprietary active cooling technology.
- High-resolution inductive displacement sensor array ensures sub-millimeter positional accuracy across full stroke; automatic zero-point calibration before each test cycle minimizes drift.
- DataShield™ embedded software module (optional) provides encrypted local storage (≥1200 test records), audit trail generation, electronic signatures, and seamless export to LIMS or ERP systems via CSV or XML—fully compliant with FDA 21 CFR Part 11 requirements when configured with GMP-compliant computer system validation packages.
Sample Compatibility & Compliance
The CZY-8SB accommodates standard pharmacopeial test plates (125 mm × 125 mm × 1.7 mm stainless steel, Type C per ChP 2015), compatible with all common transdermal delivery formats: rubber-based plasters, acrylic hydrogels, silicone adhesives, and polyacrylate matrix systems. It satisfies mechanical and procedural requirements outlined in USP General Chapter <1207> Packaging–Primary Packaging*, ISO 2528:2019 (determination of peel and shear adhesion), and ASTM D3654/D3654M (shear adhesion of pressure-sensitive tapes). Optional accessories—including calibrated weights (±10 g tolerance), 2000 g ± 50 g standard roller, and alternate test plates—facilitate method transfer across global regulatory frameworks.
Software & Data Management
The embedded operating system logs timestamped test metadata (operator ID, sample ID, environmental conditions, pass/fail criteria), raw displacement vs. time curves, and statistical summaries (mean, min, max, log-transformed values). All data are stored with immutable timestamps and checksum-verified integrity. Export options include USB flash drive (FAT32 formatted), direct print via optional thermal mini-printer (with GLP header), or network upload. When paired with Labthink’s certified GMP Computer System Validation (CSV) package, the system supports full 21 CFR Part 11 compliance—including role-based access control, electronic signatures, and retrospective audit trail review.
Applications
- QC release testing of topical analgesic plasters, fever-reducing patches, and nicotine replacement therapy (NRT) patches.
- Stability study support: evaluating adhesive performance degradation under accelerated aging (40 °C/75% RH) or long-term storage conditions.
- Formulation development: comparative assessment of PSA rheology, crosslink density effects, and backing film interactions.
- Supplier qualification: verifying consistency of incoming adhesive-coated substrates against internal specifications or pharmacopeial limits.
- Regulatory dossier preparation: generating GLP-compliant reports for NMPA, EMA, or PMDA submissions.
FAQ
What standards does the CZY-8SB comply with?
It adheres to the test methodology in the Chinese Pharmacopoeia (2015 Edition), ISO 29862:2017, and is configurable to meet USP <1207>, ASTM D3654, and ISO 2528 requirements.
Can the instrument operate without environmental control?
Yes—the base model performs ambient-condition testing; temperature/humidity control is available as an optional thermostatic module.
Is data export compatible with laboratory information management systems (LIMS)?
Yes—via DataShield™ (optional), it supports structured data output in CSV, XML, or database-ready formats with full audit trail retention.
What is the maximum test duration supported?
Up to 9999 hours, 59 minutes, and 59 seconds—sufficient for extended creep evaluation protocols.
Does the system support electronic signatures for regulated environments?
Yes—when deployed with the GMP Computer System Validation package and DataShield™, it fully satisfies FDA 21 CFR Part 11 electronic record and signature requirements.
