QJ211S Universal Tensile Testing Machine
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | QJ211S |
| Price Range | USD 7,000 – 14,000 |
| Instrument Type | Electromechanical Tensile Tester |
| Maximum Test Load | 10 kN |
| Force Measurement Range | 0.2–100% of Full Scale (FS) |
| Force Accuracy Class | 0.5 |
| Test Stroke | 500 mm |
| Displacement Resolution | ≤0.2% of reading |
| Effective Test Width | 320 mm |
| Crosshead Speed Range | 0.01–500 mm/min (standard configuration: 300 mm/min) |
| Speed Accuracy | ±0.5% of set value |
| Displacement & Strain Measurement Accuracy | ≤0.2% of reading |
| Load Cell Resolution | 500,000 counts (full-scale, no range switching) |
| Motor Power | 400 W |
| Net Weight | 145 kg |
Overview
The QJ211S Universal Tensile Testing Machine is an electromechanical materials testing system engineered for precision mechanical property evaluation of metallic and quasi-ductile specimens under uniaxial loading conditions. Based on ISO 6892-1, ASTM E8/E21, and GB/T 228.1 standards, it employs a closed-loop servo-controlled drive system with high-resolution load cell feedback and optical encoder-based displacement sensing to deliver repeatable, traceable force–displacement data. Designed for laboratory and quality control environments, the QJ211S supports static tensile, compression, bending, shear, and peel testing—enabling full stress–strain curve generation, yield strength (Rp0.2), ultimate tensile strength (Rm), elongation at break (A%), and modulus of elasticity (E) determination. Its modular fixture interface accommodates standardized grips (e.g., wedge-action, pneumatic, and vise-type) as well as custom tooling for wire, rod, spring, cable, and sheet metal specimens up to 10 kN capacity.
Key Features
- High-fidelity 0.5-class force measurement per ISO 7500-1, validated across 0.2–100% FS without range switching
- 500,000-count internal resolution load cell ensures consistent sensitivity from sub-newton to full 10 kN loads
- Precision ball-screw-driven crosshead with dual-speed (fast/slow) manual jog and programmable return functionality
- Real-time dynamic display of load, displacement, strain, and test time via integrated 7-inch LCD controller
- Electronic limit switches and over-load protection (110% FS cutoff) for operator and equipment safety
- Adjustable test speed range: 0.01–500 mm/min, calibrated to ±0.5% accuracy per ISO 5893
- Robust cast-iron frame with 145 kg mass minimizes vibration-induced noise during high-speed or cyclic tests
- Compliant with GLP documentation requirements through audit-trail-enabled software export (CSV, PDF, XML)
Sample Compatibility & Compliance
The QJ211S accommodates specimens conforming to standard geometries defined in ASTM E8 (tensile bars), ASTM A370 (steel products), ISO 6892-1 (metallic materials), and GB/T 228.1 (Chinese national standard). With an effective test width of 320 mm and vertical travel of 500 mm, it accepts flat strips up to 30 mm wide × 3 mm thick, round wires up to Ø6 mm, and coiled springs with free heights ≤450 mm. Fixture adaptability extends testing to ISO 14130 (non-metallic composites), ISO 179 (impact-modified plastics), and ISO 1184 (textile yarns) when paired with certified accessories. All mechanical and electrical subsystems comply with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD) and meet IEC 61000-6-2 immunity requirements for industrial laboratory environments.
Software & Data Management
The system integrates with Windows-based PC software supporting bi-directional USB/RS232 communication. The application provides real-time plotting of force–displacement, stress–strain, and load–time curves; automatic calculation of mechanical parameters per user-defined standards; and customizable report templates compliant with ISO/IEC 17025 documentation frameworks. Raw data export includes timestamped .csv files with metadata (operator ID, sample ID, environmental conditions), while PDF reports embed digital signatures and revision-controlled headers. Software features FDA 21 CFR Part 11–compatible user access levels, electronic audit trails, and password-protected method libraries—enabling seamless integration into GMP/QA workflows requiring full data integrity and traceability.
Applications
- Tensile characterization of stainless steel wire, carbon steel rebar, and aluminum alloy rods per ASTM A106/A135
- Yield point verification and plastic deformation analysis of cold-drawn springs and coil assemblies
- Quality assurance testing of welded joints and brazed interfaces in automotive and aerospace components
- Mechanical validation of medical device guidewires, sutures, and orthodontic archwires (ISO 15614-1, ISO 22679)
- Routine QC screening of polymer films, rubber sheets, and composite laminates in manufacturing lines
- Educational use in university materials science labs for hands-on instruction in Hooke’s law, necking behavior, and fracture mechanics
FAQ
What standards does the QJ211S comply with for force calibration?
It conforms to ISO 7500-1 Class 0.5 requirements, with factory calibration traceable to NIM (National Institute of Metrology, China) and optional UKAS-accredited third-party certification.
Can the system perform cyclic or fatigue testing?
No—the QJ211S is designed for static and quasi-static tests only. For low-cycle fatigue applications, a dedicated servo-hydraulic or electromagnetic fatigue tester is recommended.
Is remote firmware update supported?
Yes, firmware upgrades are delivered via encrypted USB stick with version-locked checksum verification to ensure system integrity.
What is included in the standard delivery package?
Mainframe unit, 10 kN load cell, two sets of manual wedge grips (flat & round), LCD controller, USB cable, calibration certificate, and installation manual.
How is data security maintained during network-connected operation?
The software operates in isolated LAN mode by default; cloud upload requires explicit user authorization and TLS 1.2–encrypted transmission if enabled.
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