QJBCS300J Plastic Cantilever Beam Impact Tester
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | QJBCS300J |
| Price | USD 2,800 (approx.) |
| Impact Velocity | ~5.2 m/s |
| Nominal Impact Energies | 150 J, 300 J, 450 J |
| Pendulum Pre-lift Angle | 150° |
| Distance from Pivot to Impact Center | 335 mm |
| Impact Blade Tip Radius | R 0.8 mm |
| Display | Chinese-character LCD with angle and energy readout |
| Power Supply | 220 V ±10%, 50 Hz |
| Net Weight | ~210 kg |
Overview
The QJBCS300J Plastic Cantilever Beam Impact Tester is a precision mechanical testing instrument engineered for the quantitative determination of notched and unnotched impact resistance in rigid and semi-rigid non-metallic materials. It operates on the fundamental principle of pendulum-based Charpy-type impact testing adapted specifically for cantilever beam configuration per ASTM D790 (flexural properties) and ISO 180:2019 — Plastics — Determination of impact resistance by the cantilever beam method. The device utilizes a gravity-driven pendulum with calibrated mass and arm length to deliver a defined kinetic energy upon impact to a standardized specimen clamped at one end. Energy absorption is calculated from the difference between initial potential energy and residual energy post-impact, expressed in joules (J). Designed for compliance with GB/T 1843–2008, GB/T 2611–2007, and JB/T 8761–1998, this tester delivers high reproducibility across material classes including thermoplastics (e.g., ABS, PC, PP), fiber-reinforced composites (e.g., glass-filled nylon), ceramics, insulating polymers, and cast stone.
Key Features
- Triple-energy modular pendulum system supporting nominal impact energies of 150 J, 300 J, and 450 J — enabling broad dynamic range coverage without hardware replacement
- Precision-machined impact blade with certified tip radius of R 0.8 mm, traceable to national metrology standards for consistent notch stress concentration
- Optimized pendulum geometry: 335 mm distance from pivot axis to impact center ensures alignment with ISO 180 specimen support requirements and minimizes torsional error
- Integrated Chinese-character LCD display with real-time angular position feedback and automatic energy calculation — eliminates manual interpolation and reduces operator-induced variance
- Robust cast-iron base frame and vibration-damped column structure ensure mechanical stability during high-energy impacts (up to 450 J)
- 150° pre-lift angle guarantees full gravitational energy conversion with minimal air resistance deviation, meeting repeatability thresholds specified in ISO 179-1 Annex B
Sample Compatibility & Compliance
The QJBCS300J accommodates standard ISO 180 specimens (80 × 10 × 4 mm or 10 mm thickness variants) and ASTM D790-compliant flexural bars. Specimen clamping employs dual-point pneumatic-free mechanical jaws with adjustable torque calibration to prevent slippage or micro-fracture initiation prior to impact. All test protocols align with regulatory expectations for quality control laboratories operating under GLP or ISO/IEC 17025 frameworks. While the instrument itself does not generate electronic audit trails, its mechanical design and analog-digital hybrid readout support full traceability when paired with laboratory documentation systems compliant with FDA 21 CFR Part 11 requirements for paper-based records.
Software & Data Management
This model features embedded firmware with non-volatile memory for storing up to 100 test cycles, including pendulum angle, calculated energy, and timestamp (date only). Data export is performed manually via on-screen readout and transcription into LIMS or Excel-based QA databases. Optional RS-232 serial interface (available upon request) enables integration with third-party acquisition software for automated logging, statistical process control (SPC) charting, and CAPA documentation. Firmware updates are provided free of charge for registered users and include calibration coefficient validation logs compatible with internal metrology audits.
Applications
- Quality assurance of injection-molded plastic components in automotive interior trim and electrical enclosures
- R&D evaluation of toughening agents (e.g., elastomer blends, core-shell modifiers) in engineering thermoplastics
- Batch release testing for composite laminates used in aerospace secondary structures
- Comparative analysis of aging effects (UV, thermal, hydrolytic) on impact performance of polymeric insulators
- Validation of material substitutions in medical device housings per ISO 10993-1 biocompatibility pathways
- Education and certification labs requiring ISO 180-conformant training equipment with physical transparency of energy transfer mechanics
FAQ
Does the QJBCS300J comply with international calibration standards?
Yes — all pendulum arms, blades, and angle sensors undergo factory calibration against NIM (National Institute of Metrology, China) reference standards. Calibration certificates include uncertainty budgets per ISO/IEC 17025:2017 Annex A.
Can the tester be upgraded to support ISO 179-1 Izod configuration?
No — the QJBCS300J is mechanically optimized exclusively for cantilever beam (ISO 180) geometry. Izod testing requires distinct specimen orientation, clamp design, and energy distribution characteristics.
What maintenance intervals are recommended for long-term accuracy?
Blade edge inspection every 500 impacts; bearing lubrication every 12 months; full mechanical verification (pivot friction, angle encoder linearity) annually or after relocation.
Is remote technical support available for troubleshooting?
Yes — video-assisted diagnostics and firmware reset protocols are provided free of charge within the first year of warranty coverage.
Are consumables such as replacement blades and specimen fixtures available separately?
Yes — OEM-certified impact blades (R 0.8 mm, HRC 58–62), clamping jaws, and ISO-standard specimen cutting dies are stocked and shipped globally.
