JB-Bin JB-120 Waterproof Membrane Tensile Tester
| Brand | JB-Bin |
|---|---|
| Model | JB-120 |
| Type | Electromechanical Universal Testing Machine |
| Max Test Load | 20 kN |
| Accuracy Class | 0.5 |
| Drive System | Panasonic AC Servo Motor |
| Speed Range | 0.001–500 mm/min |
| Control & Data Acquisition | Full PC-Based Closed-Loop Control |
| Effective Stroke | ~1000 mm (customizable) |
| Displacement Resolution | 0.001 mm (1000 P/R encoder) |
| Overload Protection | Auto-stop at 5–10% over capacity (configurable) |
| Software | Windows-based MaxTest v7.x (bilingual: English/Chinese) |
| Standard Fixture Set | One pair, customized per sample geometry |
| Dimensions (L×W×H) | 900 × 400 × 1600 mm |
| Power Supply | 380 V / 50 Hz |
| Weight | 270 kg |
Overview
The JB-Bin JB-120 Waterproof Membrane Tensile Tester is an electromechanical universal testing machine engineered for precise mechanical characterization of flexible construction materials—specifically polymer-modified bitumen (PMB), SBS/APP-modified membranes, PVC, TPO, EPDM, and other sheet waterproofing systems. It operates on the principle of uniaxial tensile loading under controlled displacement or load rate, conforming to standardized test protocols including ASTM D882, ISO 527-3, GB/T 328.8–2007, and EN 13914-1. The system integrates a high-stiffness dual-column frame, a precision-ground ball screw transmission assembly, and a calibrated 20 kN load cell traceable to national metrological standards. Its closed-loop servo control architecture ensures stable force ramping, consistent strain rates, and repeatable stress–strain curve generation across temperature- and humidity-conditioned specimens.
Key Features
- High-fidelity load measurement: 0.5-class accuracy per ISO 7500-1, with real-time digital filtering and auto-zero compensation.
- Wide dynamic speed range (0.001–500 mm/min) enables compliance with both slow-strain-rate tests (e.g., elongation at break per GB/T 328.8) and high-speed peel or tear evaluations.
- Panasonic AC servo motor drive delivers smooth torque response, minimal speed ripple (<±0.1%), and long-term thermal stability—critical for extended-duration creep or relaxation tests.
- Modular fixture interface supports rapid tooling changes; standard configuration includes pneumatic or mechanical wedge-action grips optimized for low-modulus, high-elongation membranes (up to 500% strain).
- Robust structural design: 270 kg mass and reinforced steel frame minimize vibration-induced noise, ensuring signal integrity during low-force measurements (<1 N initial load detection).
- Configurable stroke (standard 1000 mm, extendable upon request) accommodates full-width membrane samples up to 1.5 m in length without trimming.
Sample Compatibility & Compliance
The JB-120 is validated for testing specimens cut from roll-based waterproofing sheets per ASTM D412, ISO 37, and Chinese standard GB/T 328 series. It accepts strip specimens (25 mm wide × ≥150 mm gauge length), dumbbell-shaped coupons, and full-thickness cross-laminated composites. Environmental conditioning—such as pre-test storage at 23°C/50% RH per ISO 291—is supported via integration with external climate chambers (optional). All test methods executed on this platform satisfy requirements for third-party certification bodies (e.g., CNAS-accredited labs), and raw data files comply with GLP audit trails when MaxTest software is operated in CFR 21 Part 11 mode (electronic signatures, user access logs, immutable audit history).
Software & Data Management
MaxTest v7.x provides ISO 17025-aligned test sequencing, real-time curve overlay, and automated report generation in PDF/XLSX formats. The software supports multi-curve statistical comparison (mean ± SD, CV%), pass/fail threshold mapping against specification limits (e.g., minimum tensile strength ≥ 800 N/50 mm), and export of ASCII-delimited time–force–displacement datasets for post-processing in MATLAB or Python. Calibration certificates, operator ID, environmental metadata, and instrument firmware version are embedded in each exported file header. Optional cloud synchronization enables centralized data archival compliant with ICH E6(R3) and ISO/IEC 17025:2017 Clause 7.5.2.
Applications
- Tensile strength and elongation at break evaluation of bituminous and synthetic roofing membranes.
- Peel resistance measurement between membrane layers or substrate interfaces (ASTM D903).
- Creep compliance analysis under sustained loads (e.g., 24 h @ 20% of ultimate load).
- Low-temperature flexibility assessment via bend-over-mandrel tests (EN 1107-1).
- Quality assurance screening for incoming raw materials and finished goods in ISO 9001-certified production lines.
- Failure mode documentation—including necking onset, yield point identification, and fracture energy calculation via area-under-curve integration.
FAQ
Is the JB-120 compatible with ASTM D882 for thin plastic films?
Yes—its sub-Newton resolution and adjustable grip separation allow valid testing of films down to 25 µm thickness when used with micro-grip fixtures.
Can test parameters be locked to prevent unauthorized modification?
Yes—administrator-level password protection restricts access to calibration constants, method templates, and audit log settings.
Does the system support automatic specimen alignment verification?
Not natively; however, optional digital image correlation (DIC) modules can be integrated for non-contact strain field mapping.
What maintenance intervals are recommended for long-term accuracy?
Load cell recalibration every 12 months; ball screw lubrication every 6 months; encoder and limit switch inspection quarterly.
Is CE marking available for EU shipment?
Yes—the JB-120 complies with Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU; full technical documentation and EU Declaration of Conformity are provided.
