Beiguang Jingyi BWN-5KN Electronic Tensile Testing Machine
| Brand | Beiguang Jingyi (All Precision Instrument) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Model | BWN-5KN |
| Max Test Force | 5 kN |
| Force Measurement Range | 2–10% of Full Scale |
| Force Accuracy | ±1% (FS) |
| Displacement Resolution | 0.01 mm |
| Crosshead Travel | 700 mm |
| Speed Range | 0.05–500 mm/min |
| Speed Accuracy | ±1% |
| Power Supply | 220 VAC ±10%, 50 Hz, 0.5 kW |
| Dimensions (W×D×H) | 400 × 400 × 1300 mm |
Overview
The Beiguang Jingyi BWN-5KN Electronic Tensile Testing Machine is a microprocessor-controlled universal testing system engineered for precision mechanical property evaluation of metallic, polymeric, composite, and textile specimens under uniaxial tension, compression, and peel/bend configurations. It operates on the principle of electromechanical force application via a high-efficiency servo motor, planetary gear reducer, and precision ball-screw transmission assembly—ensuring stable load generation and minimal thermal drift during extended test cycles. The system integrates a calibrated S-type load cell (5 kN capacity), high-resolution linear displacement transducer (0.01 mm resolution), and real-time closed-loop speed control to meet ISO 6892-1, ASTM E8/E21, and GB/T 228.1 requirements for tensile testing of metallic materials. Designed for laboratory and quality control environments, it supports both manual operation and automated test sequencing with full traceability for GLP/GMP compliance.
Key Features
- High-stability electromechanical actuation system with brushless servo motor and precision planetary gearbox
- Load cell calibrated to ±1% accuracy across 2–10% of full scale (5 kN), traceable to national standards
- Displacement measurement via optical encoder with 0.01 mm resolution and ±0.1% zero-point repeatability
- Adjustable crosshead speed from 0.05 to 500 mm/min, verified per ISO 6892-1 Annex C using timed travel methods with certified length standards
- Robust dual-column frame with 700 mm effective test height and rigid alignment to minimize bending moments during axial loading
- Full Chinese-language LCD interface with PDA-style navigation, floating zero adjustment, peak force hold, and automatic rupture detection
- Integrated overload protection, end-of-travel limit switches, and emergency stop circuit compliant with IEC 61800-5-2
- Modular gripping system accommodating flat, round, and threaded specimens; optional wedge-action or pneumatic clamps available
Sample Compatibility & Compliance
The BWN-5KN accommodates standard tensile specimens per ISO 6892-1 (Type 1A, 2, 5), ASTM E8 (flat and round bars), and GB/T 228.1 (P1–P6 geometry). Its adjustable jaw spacing and interchangeable grip inserts support widths up to 40 mm and diameters from 1–12 mm. Compression testing utilizes hardened steel platens (55 HRC minimum) with concentric alignment markings and surface roughness ≤0.8 µm Ra. All mechanical components—including load train alignment—are validated for coaxiality per JB/T 6146–2007: for ≤5 kN systems, coaxiality is verified using gravity-based plumb-line methodology (≤Φ2 mm deviation over 500 mm). The machine conforms to electromagnetic compatibility (EMC) requirements per GB/T 18213 and electrical safety per GB 5226.1–2019. Calibration documentation includes traceable certificates for force, displacement, and speed verification against national metrological standards.
Software & Data Management
The embedded firmware supports real-time data acquisition at ≥100 Hz sampling rate, with automatic calculation of tensile strength (Rm), yield strength (ReH/ReL), elongation at break (A50, A80), modulus of elasticity (E), and stress-strain curve plotting. All test parameters—including preload, strain rate, rupture threshold, and dwell time—are fully configurable and saved with timestamped metadata. Raw data exports in CSV format include force (N), displacement (mm), time (s), and calculated engineering stress/strain. Audit trails record operator ID, parameter changes, calibration events, and system errors—supporting FDA 21 CFR Part 11 readiness when deployed with external PC-based software modules. Firmware updates are performed via USB port without requiring factory service intervention.
Applications
This system serves routine mechanical characterization in R&D labs, incoming material inspection, and production line QA/QC. Typical use cases include: tensile testing of aluminum alloys (e.g., 6061-T6 per ASTM B209), polymer films (PET, PP, PE per ISO 527), rubber compounds (ASTM D412), adhesives (peel strength per ASTM D903), medical tubing (burst pressure per ISO 11357), and geotextiles (grab tensile per ASTM D5035). It also supports non-standard protocols such as cyclic loading, creep testing (with optional dwell control), and proof loading for fasteners. When paired with extensometers (e.g., clip-on or video-based), it meets ISO 527-2 requirements for modulus determination in plastics.
FAQ
What is the maximum specimen gauge length supported?
The effective test space allows gauge lengths up to 500 mm for standard tensile bars, with extensometer compatibility up to 250 mm for high-precision strain measurement.
Does the system support ASTM E23 for impact testing?
No—the BWN-5KN is strictly a quasi-static tensile/compression tester. Impact testing requires dedicated pendulum or drop-weight systems per ASTM E23 or ISO 148.
Can test results be exported directly to LIMS?
Yes—CSV output is compatible with common LIMS platforms; API integration is available via optional Ethernet module with Modbus TCP protocol.
Is third-party calibration certification included?
Factory calibration is provided with traceable certificate; ISO/IEC 17025-accredited calibration services are available upon request.
What maintenance intervals are recommended?
Lubrication of lead screws every 500 operational hours; annual verification of load cell linearity and displacement encoder accuracy; biannual inspection of jaw alignment and grip surface wear.
