SRZ-400D Melt Flow Rate Tester (MFR Tester) Compliant with ASTM D1238, ISO 1133, and GB/T 3682
| Origin | Jilin, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | SRZ-400D |
| Pricing | Upon Request |
| Temperature Range | 80–400 °C |
| Temperature Accuracy | ±0.2 °C |
| Temperature Resolution | 0.1 °C |
| Barrel Bore Diameter | 9.550 ± 0.025 mm |
| Piston Head Diameter | 9.475 ± 0.015 mm |
| Piston Head Length | 6.35 ± 0.1 mm |
| Die Capillary Diameter | 2.095 ± 0.005 mm |
| Stroke Detection Interval | 30 mm |
| Position Control Accuracy | ±0.1 mm |
| Max Power Consumption | <500 W |
| Temperature Recovery Time | ≤4 min |
Overview
The SRZ-400D Melt Flow Rate Tester is a precision benchtop instrument engineered for the standardized determination of melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastic polymers under defined load and temperature conditions. It operates on the fundamental principle of extrusion plastometry—measuring the mass or volume of polymer melt extruded through a standardized capillary die over a fixed time interval under controlled temperature and applied dead weight. The system complies fully with international test standards including ISO 1133-1:2011 (Method A), ASTM D1238-22 (Condition 190/2.16, 190/5.0, 230/2.16, etc.), and GB/T 3682.1–2018 (replacing GB 3682–2000), ensuring data comparability across global R&D laboratories, quality control departments, and regulatory submissions.
Key Features
- High-stability temperature control system with PID algorithm, achieving ±0.2 °C accuracy across an operational range of 80–400 °C and full recovery within ≤4 minutes after load change;
- Precision-machined ASTM/ISO-compliant barrel assembly: bore diameter 9.550 ± 0.025 mm, matched with piston head diameter 9.475 ± 0.015 mm and length 6.35 ± 0.1 mm to maintain optimal annular clearance and minimize wall slip effects;
- Standardized die geometry: tungsten carbide capillary with nominal diameter 2.095 ± 0.005 mm and L/D = 30:1, traceable to NIST-equivalent calibration protocols;
- Digital linear position sensing with ±0.1 mm repeatability over 30 mm stroke interval, enabling precise MVR calculation via piston displacement tracking;
- Integrated microprocessor-based controller with backlit LCD interface, supporting Chinese-language menu navigation, automated timing, auto-cutting sequence initiation, and direct thermal printing of test reports;
- Robust mechanical architecture designed for long-term stability in high-throughput QC environments; power consumption <500 W ensures compatibility with standard laboratory circuits.
Sample Compatibility & Compliance
The SRZ-400D supports routine MFR/MVR testing of a broad spectrum of thermoplastics—including polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), polyamide (PA6, PA66), polyacetal (POM), fluoropolymers (e.g., PTFE-modified grades), polycarbonate (PC), and acrylic resins (PMMA). All hardware dimensions and thermal performance parameters are validated against ISO 1133 Annex A and ASTM D1238 Annex A requirements for dimensional conformity and thermal uniformity. The instrument meets essential electrical safety standards (IEC 61010-1) and is suitable for use in GLP-compliant laboratories where audit-ready documentation and procedural traceability are required.
Software & Data Management
While the SRZ-400D operates as a stand-alone unit with embedded firmware, its test logs—including temperature setpoint, actual chamber temperature, cut times, specimen mass, calculated MFR/MVR values, operator ID, and test date/time—are stored internally and printed in real time. Optional RS232 or USB-to-serial interface modules enable export of ASCII-formatted data to external LIMS or Excel-based QA databases. When integrated into regulated environments, the system supports manual entry of batch numbers and material identifiers, satisfying basic 21 CFR Part 11 record-keeping prerequisites when paired with controlled document management procedures.
Applications
- Raw material qualification and supplier lot release testing;
- In-process monitoring during polymer compounding and extrusion;
- Correlation of MFR with molecular weight distribution (MWD) trends in R&D;
- Stability assessment of polymer degradation after thermal aging or UV exposure;
- Validation of processing parameters for injection molding and blow molding applications;
- Supporting technical dossiers for ISO 9001, IATF 16949, and medical-grade polymer certifications (e.g., USP Class VI, ISO 10993).
FAQ
What standards does the SRZ-400D comply with?
It conforms to ISO 1133-1:2011, ASTM D1238-22, and GB/T 3682.1–2018 for both MFR and MVR determinations.
Can it measure both MFR and MVR?
Yes—MFR is derived from gravimetric cutting intervals; MVR is calculated using real-time piston displacement data and melt density input.
Is calibration certification provided with the instrument?
A factory-issued dimensional verification report for barrel, piston, and die is included; users must perform periodic temperature calibration using traceable PT100 probes per ISO 1133 Clause 6.2.
What maintenance is required for long-term accuracy?
Routine cleaning of the barrel and die with copper wire brushes and solvent wipes after each polymer type change; annual verification of temperature uniformity and piston concentricity is recommended.
Does it support automated data archiving?
Native archiving is print-only; digital export requires optional serial interface hardware and user-configured PC-side parsing scripts or LIMS integration.
