Beiguang Jingyi BM-200 Plastic Sliding Friction and Wear Tester
| Brand | Beiguang Jingyi / All Precision Instrument |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | BM-200 |
| Max Test Load | 2000 N |
| Load Indication Relative Error | ≤±2% (at ≥10% FS) |
| Load Repeatability Relative Error | ≤2% (at ≥10% FS) |
| Friction Torque Range | 0–15 N·m |
| Torque Indication Relative Error | ≤±3% (at ≥10% FS) |
| Torque Repeatability Relative Error | ≤3% (at ≥10% FS) |
| Lower Specimen Shaft Speed | 200 / 400 rpm (stepless speed control) |
| Upper Specimen Shaft Speed | 180 / 360 rpm |
| Axial Travel of Upper Shaft | ±4 mm |
| Time Control Range | 1 s – 9999 min (digital display) |
| Revolution Count Range | 1 – 999999 (digital display) |
Overview
The Beiguang Jingyi BM-200 Plastic Sliding Friction and Wear Tester is an electromechanical tribological testing instrument engineered for precision measurement of coefficient of friction (COF), wear rate, and frictional torque under controlled sliding conditions. It operates on the principle of dual-axis rotational kinematics with differential speed control—where the lower and upper specimen shafts rotate at independently selectable speeds (e.g., 200/400 rpm and 180/360 rpm respectively), generating a defined slip ratio (~10% under standard configuration) between contacting polymer surfaces. This enables quantitative evaluation of kinetic and static friction behavior in accordance with ASTM D1894 (Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting) and ISO 8295 (Plastics — Film and Sheeting — Determination of the Coefficients of Friction). The system integrates a high-stiffness cast-iron frame, servo-driven motion control, real-time torque sensing via calibrated load cells, and embedded industrial PC-based data acquisition—ensuring traceable, repeatable, and GLP-compliant test execution.
Key Features
- High-accuracy dual-range load measurement: 2000 N maximum test force with ≤±2% relative error above 10% full scale, validated per ISO 7500-1 calibration standards.
- Precision friction torque measurement: 0–15 N·m range with ≤±3% relative error, captured via torsional pendulum mechanism and displacement transducer feedback.
- Independent dual-shaft speed control: Lower shaft (200/400 rpm) and upper shaft (180/360 rpm) driven by Japanese AC servo motors, enabling adjustable slip ratios for simulating varying shear conditions.
- Programmable axial positioning: ±4 mm vertical travel of the upper shaft accommodates specimen thickness variations and ensures consistent normal force application.
- Digital time and revolution counters: Fully integrated digital displays for test duration (1 s–9999 min) and rotational cycles (1–999999), synchronized with data logging.
- Embedded industrial control architecture: All-in-one design integrating embedded PC, I/O modules, HX proprietary software, and real-time curve plotting (e.g., torque vs. time, torque vs. revolutions).
Sample Compatibility & Compliance
The BM-200 supports flat, cylindrical, or disk-shaped plastic specimens—including polyethylene (PE), polypropylene (PP), PET, PVC, polycarbonate (PC), and engineering thermoplastics—mounted using standardized clamping fixtures. Its mechanical configuration complies with geometric requirements for ASTM D3702 (Pin-on-Disk Wear Testing) and ISO 7148-1 (Rolling/sliding contact fatigue testing). Force application utilizes preloaded compression springs with fine-thread adjustment (M12 left-hand thread on lower shaft; M12 right-hand thread on upper shaft) to prevent loosening during dynamic operation. All electronic subsystems meet CE electromagnetic compatibility (EMC) directives, and sensor signal conditioning adheres to IEC 61000-4 immunity standards. Data integrity conforms to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), supporting audit readiness for ISO/IEC 17025-accredited laboratories.
Software & Data Management
The BM-200 is operated exclusively through HX proprietary Windows-based software, installed on its embedded industrial PC. The interface provides real-time visualization of torque, load, time, and revolution parameters, with simultaneous multi-curve plotting and configurable alarm thresholds. Raw data is saved in CSV and binary formats with embedded metadata (operator ID, test date/time, specimen ID, environmental notes). Export functions support direct integration into LIMS platforms or statistical analysis tools (e.g., JMP, Minitab). Audit trail functionality records all user actions—including parameter changes, start/stop commands, and calibration events—with timestamps and operator login credentials. While not natively 21 CFR Part 11 compliant, the system supports external validation protocols for GMP/GLP environments when deployed with supplementary access controls and electronic signature workflows.
Applications
This tester is routinely deployed in R&D labs and QC departments across packaging, automotive interior plastics, medical device polymer development, and food-contact material certification. Typical use cases include: evaluating COF of laminated films for high-speed packaging line performance; assessing wear resistance of gear polymers under oscillatory loading; benchmarking anti-scratch additives in acrylic surface coatings; validating lubricity improvements in extruded HDPE pipes; and supporting regulatory submissions for FDA 21 CFR 177 compliance where surface interaction data is required. Its ability to maintain constant torque output across speed ranges makes it suitable for accelerated aging simulations and comparative tribological screening of formulation variants.
FAQ
What standards does the BM-200 comply with for friction coefficient testing?
It supports ASTM D1894, ISO 8295, and ASTM D3702 methodologies through configurable speed ratios, load application, and data reporting templates.
Can the system measure both static and kinetic coefficients of friction?
Yes—static COF is determined from initial torque spike at motion onset; kinetic COF is calculated from steady-state torque plateau, both automatically extracted by HX software.
Is third-party calibration documentation provided with shipment?
Each unit ships with a factory calibration certificate traceable to CNAS-accredited standards, including load cell and torque sensor verification reports.
What maintenance intervals are recommended for long-term accuracy?
Biannual verification of torque and load sensors is advised; annual recalibration of the servo drive encoder and position feedback system is recommended for critical applications.
Does the system support custom test protocols beyond preset modes?
Yes—the HX software allows scripting of multi-step sequences (e.g., ramped load + stepped speed + dwell periods) via its built-in macro editor and API interface.
