Hengyi HY-2000NM Bolt Preload and Torque Testing System
| Brand | Hengyi / Hengyitest |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | HY-2000NM |
| Pricing | Upon Request |
Overview
The Hengyi HY-2000NM Bolt Preload and Torque Testing System is a high-precision, dual-axis mechanical testing instrument engineered for simultaneous measurement of axial preload force and applied torque during fastener tightening. Based on the principle of controlled rotational loading under axial constraint, the system replicates real-world bolted joint assembly conditions to quantify critical tightening characteristics—including torque coefficient (K-factor), total coefficient of friction, thread friction coefficient, bearing surface friction coefficient, yield clamping force, yield tightening torque, rotation angle, ultimate clamping force, and ultimate torque. Designed for compliance with international fastener testing standards—including ISO 16047, ASTM F2268, DIN 267-27, and GB/T 16823.3—the HY-2000NM supports traceable, repeatable evaluation of high-strength bolts used in structural steel, wind turbine towers, rail infrastructure, power transmission systems, shipbuilding, and aerospace-grade assemblies.
Key Features
- Integrated dual-sensor architecture: Independent high-capacity load cells (5–500 kN axial force range) and precision torque transducers (0–2000 N·m total torque; 0–1000 N·m thread torque) enable synchronized, low-crosstalk acquisition.
- Stable, noise-optimized electromechanical drive: Brushless servo motor with closed-loop speed control delivers consistent rotational speeds from 5 to 40 rpm (extendable to 200 rpm), ensuring smooth low-speed operation without stick-slip or creep.
- Modular gripping system: Adjustable jaw configuration accommodates threaded fasteners from M10 to M30; custom collet sets available for non-standard geometries including double-end studs, anchor bolts, shear connectors, and weld studs.
- Robust mechanical frame: Heavy-duty welded steel construction (2200 × 540 × 1250 mm footprint; 1800 kg mass) minimizes deflection and vibration, supporting high-fidelity data capture at full load.
- Advanced control electronics: Proprietary HYtest controller with 24-bit ADC resolution, real-time PID tuning, and anti-drift compensation ensures ≤ ±0.5% accuracy across all measured parameters (torque, axial force, angle, speed).
Sample Compatibility & Compliance
The HY-2000NM is validated for testing carbon steel, alloy steel, stainless steel, nickel-chromium-molybdenum superalloys, and chromium-alloy fasteners per ASTM A325, A490, F1852, F2280, and ISO 898-1 specifications. It supports both standard hex-head bolts (including large-diameter structural bolts per EN 14399) and specialized variants such as twist-off type shear bolts, anchor rods, foundation bolts, and stud-welded connectors. All test protocols align with GLP-compliant documentation requirements and support audit-ready reporting per ISO/IEC 17025 calibration traceability frameworks.
Software & Data Management
The HYtest universal testing software provides ISO 17025-aligned test sequence definition, real-time curve overlay (torque vs. angle, axial force vs. angle, torque vs. axial force), automatic yield point detection via the 0.2% offset method, and configurable pass/fail thresholds per specification limits. Raw data export is supported in CSV, XML, and PDF formats with embedded metadata (operator ID, timestamp, environmental conditions, calibration certificate IDs). The system complies with FDA 21 CFR Part 11 requirements through electronic signature capability, audit trail logging, and user-role-based access control—ensuring data integrity for regulated QA/QC environments.
Applications
- Validation of tightening procedures for wind turbine tower flange connections
- Friction coefficient benchmarking of lubricated vs. dry-threaded high-strength bolting systems
- Yield and ultimate performance mapping of ASTM F3125 Grade A490M bolts under cyclic preload
- Development and verification of torque-tension relationships for custom aerospace fasteners
- Third-party certification testing per EN 15048 and ISO 898-2 for manufacturing quality assurance
- Research into relaxation behavior and embedment loss in multi-layer composite joints
FAQ
What standards does the HY-2000NM support for bolt testing?
It fully supports ISO 16047, ASTM F2268, DIN 267-27, GB/T 16823.3, and EN 14399 series standards for torque-tension characterization and friction analysis.
Can the system test beyond M30 fasteners?
Yes—customized jaw assemblies and extended travel options are available for fasteners up to M64, subject to mechanical validation and load capacity review.
Is the software compliant with FDA 21 CFR Part 11?
Yes—audit trail, electronic signatures, and role-based permissions are implemented per Part 11 Annex 11 guidance for regulated laboratories.
How is calibration traceability maintained?
All transducers are calibrated annually against NIST-traceable reference standards; certificates include uncertainty budgets and as-found/as-left data.
Does the system support automated test report generation?
Yes—templates conform to ISO/IEC 17025 reporting requirements and can be exported in PDF with digital signatures and watermarking.
