TOFENG WAL-5000 Microcomputer-Controlled Horizontal Tensile Testing Machine

Overview

The TOFENG WAL-5000 Microcomputer-Controlled Horizontal Tensile Testing Machine is an industrial-grade electro-hydraulic servo system engineered for high-capacity static tensile evaluation of structural and safety-critical components. Unlike vertical configurations, its horizontal architecture accommodates ultra-long specimens—up to 25 meters in total test length—while maintaining mechanical rigidity and load-path alignment under extreme forces up to 5000 kN. The system operates on the principle of controlled axial loading via a precision single-rod, double-acting servo hydraulic cylinder, with real-time feedback from high-stability compression-tension load cells compliant with ISO 7500-1 Class 0.5. Force application, displacement tracking, and strain derivation are governed by a proprietary digital amplifier enabling synchronized three-closed-loop control (force, position, and strain), ensuring traceable, repeatable, and method-compliant execution per international tensile standards.

Key Features

• Rigid welded steel frame with reinforced horizontal load path geometry, minimizing lateral deflection during high-force testing
• Single-rod double-acting servo hydraulic actuator delivering smooth, low-noise force application across full speed range (0–200 mm/min)
• High-fidelity load measurement using calibrated bidirectional load cells with ±0.5% accuracy over 0.2–100% full-scale range
• Optical encoder-based displacement sensing with 0.0001 mm resolution, integrated with piston stroke monitoring and crosshead position feedback
• Modular, tool-free attachment interface supporting custom-designed grips for wire ropes, anchor chains, lifting shackles, turnbuckles, and high-strength bolts
• Hydraulically driven movable crosshead with pin-lock spatial adjustment, enabling rapid reconfiguration between 2 m and 25 m test lengths without mechanical disassembly
• Dedicated safety architecture including physical machine guarding, emergency stop circuitry, rupture protection logic, and fail-safe pressure relief valves

Sample Compatibility & Compliance

The WAL-5000 is validated for standardized tensile evaluation of high-integrity mechanical assemblies where dimensional scale and ultimate strength preclude conventional benchtop or vertical systems. It routinely tests ASTM A1023-compliant wire rope slings, ISO 1704-compliant marine anchor chains, EN 13889-certified lifting shackles, and ASME B30.9-specified synthetic web slings. Its extended test envelope supports full-length validation of prestressed concrete tendons and offshore mooring lines. All force and displacement measurements adhere to ISO 7500-1 Class 0.5 verification protocols, while data acquisition meets GLP audit requirements—including electronic signature support, time-stamped raw data logging, and 21 CFR Part 11–compliant user access controls when configured with optional validation packages.

Software & Data Management

The embedded control software provides deterministic real-time acquisition at ≥1 kHz sampling rate, with synchronized recording of force, displacement, and calculated engineering stress/strain. Users select predefined test methods (e.g., ISO 6892-1 Annex G for metallic wires, ASTM D412 for elastomeric cords) or define custom ramp-hold-break profiles. The system generates compliant reports containing peak load, yield strength (0.2% offset), elongation at break, modulus calculation, and fracture energy integration—all exportable as PDF, CSV, or XML. Raw binary data files are stored with metadata tags (operator ID, calibration certificate ID, environmental conditions), supporting retrospective analysis and third-party audit review. Optional IQ/OQ documentation kits are available for regulated environments requiring formal qualification against ASTM E4 verification criteria.

Applications

• Qualification testing of marine mooring systems and deepwater anchoring hardware
• Full-scale certification of overhead transmission line conductors and suspension clamps
• Verification of aerospace-grade cable assemblies and flight control linkages
• Structural validation of bridge stay cables, precast concrete post-tensioning tendons, and seismic dampers
• R&D fatigue pre-screening via monotonic pull-to-failure of novel composite cables and hybrid fiber-metal laminates
• Third-party conformity assessment for CE marking (Machinery Directive 2006/42/EC) and PED 2014/68/EU compliance

FAQ

What is the maximum specimen length supported without auxiliary support structures?

The standard configuration accommodates specimens up to 25 meters in total length, with load train alignment maintained via dual-guide rail support and self-centering bearing mounts.

Does the system support closed-loop strain control using extensometers?

Yes—the digital controller accepts analog inputs from clip-on or video extensometers (e.g., ISO 9513 Class 1), enabling true strain-controlled ramping and yield point detection.

Can test data be exported in formats compatible with LIMS or ELN platforms?

All test results export natively to CSV and XML schemas aligned with ASTM E1461 and ISO/IEC 17025 data interchange requirements.

Is hydraulic oil temperature stabilization included for long-duration tests?

An optional thermostatically regulated hydraulic cooling unit maintains oil temperature within ±2°C during multi-hour hold tests, ensuring consistent viscosity and force fidelity.

What documentation is provided for metrological traceability?

Each unit ships with a UKAS-accredited calibration certificate (traceable to NPL), full uncertainty budget per ISO/IEC 17025, and annual recalibration reminder service.