Jihengpin HP-TLY Dual-Arm Computer-Controlled Spring Tension and Compression Testing Machine

Overview

The Jihengpin HP-TLY Dual-Arm Computer-Controlled Spring Tension and Compression Testing Machine is an electromechanical force-testing system engineered for high-reproducibility mechanical characterization of metallic and composite springs under quasi-static loading conditions. It operates on the principle of controlled displacement actuation coupled with high-fidelity load cell measurement, enabling precise determination of tensile strength, compressive yield behavior, deflection linearity, and static stiffness (k = ΔF/Δx) across a broad spectrum of spring geometries and materials. Designed in strict compliance with GB/T 2611–2007 (General Requirements for Testing Machines) and GB/T 16825.1–2008 (Verification of Force Measuring Systems), the HP-TLY supports traceable calibration per ISO/IEC 17025 requirements and integrates seamlessly into GLP- and GMP-aligned quality control workflows where documented mechanical performance is mandatory.

Key Features

• Dual-arm portal architecture ensures structural rigidity and axial alignment stability during both tension and compression testing—critical for minimizing eccentric loading errors in disc, conical, and multi-leaf spring evaluation.
• High-resolution dual-channel data acquisition: 0.01 N force resolution and 0.01 mm displacement resolution enable detection of subtle nonlinearities in load-deflection curves, including preload transitions and hysteresis zones.
• Programmable crosshead speed control (0.01–500 mm/min, multi-step selectable) accommodates both slow-rate creep assessment and rapid production-line throughput testing.
• Integrated dual-limit protection system: hardware-based mechanical stops complement software-defined travel limits to prevent over-travel damage during automated batch runs.
• Real-time dynamic plotting of force vs. displacement, stiffness vs. position, and energy absorption curves—rendered directly on the embedded industrial touchscreen interface and synchronized with PC-based analysis software.
• Compliance-ready test sequence scripting: users define multi-step protocols (e.g., pre-load → ramp → hold → unload) with configurable dwell times, slope limits, and pass/fail criteria aligned with ASTM A228, ISO 2041, or customer-specific QC specifications.

Sample Compatibility & Compliance

The HP-TLY accepts coil springs (helical tension/compression), Belleville washers, wave springs, laminated leaf springs, gas springs (with optional pneumatic fixture kits), and custom-profile springs—including asymmetric geometries and nested assemblies—via interchangeable platens and auxiliary fixtures (e.g., hook adapters, centering cones, and lateral guides). Its 200 mm platen diameter and 600 mm stroke support specimens ranging from miniature watch-spring components (<5 mm free length) to heavy-duty industrial compression units (>300 mm free height). All measurement functions conform to Class 1 accuracy per ISO 7500-1:2018 and meet the essential performance criteria outlined in EN 10270-1 (mechanical spring steels) and ISO 10243 (spring testing terminology). Calibration certificates include uncertainty budgets traceable to NIM (National Institute of Metrology, China) standards.

Software & Data Management

The system ships with Jihengpin SpringTest Pro v3.2—a Windows-based application supporting full 21 CFR Part 11 compliance via electronic signatures, audit trails, role-based access control, and immutable raw-data archiving. Test reports export in PDF/A-1b and CSV formats; curve metadata (peak load, set loss, relaxation %, tangent stiffness at 25/50/75% deflection) auto-populates structured templates compliant with ISO 17025 documentation requirements. Raw binary data (.sdt files) retain timestamped sensor readings at ≥1 kHz sampling rate, enabling post-hoc reanalysis—including derivative-based stiffness mapping and hysteresis loop quantification. Network-enabled deployment allows centralized database synchronization across multiple HP-TLY units in distributed manufacturing facilities.

Applications

• Automotive suspension component validation: measuring progressive rate behavior of variable-pitch coil springs and load-deflection hysteresis in anti-roll bar linkages.
• Medical device spring qualification: verifying fatigue-critical parameters (e.g., permanent set after 10⁴ cycles) for surgical stapler return springs and infusion pump drive mechanisms.
• Aerospace fastener testing: evaluating preload consistency and relaxation characteristics of lock-washer assemblies under thermal cycling conditions.
• Consumer electronics: characterizing tactile feedback response (actuation force, overtravel, reset force) in keyboard switch springs and hinge mechanisms.
• Quality assurance in Tier-1 spring manufacturing: statistical process control (SPC) integration for real-time Cp/Cpk monitoring of stiffness distribution across production lots.

FAQ

What load cell accuracy class does the HP-TLY use, and is third-party calibration available?
The HP-TLY employs a Class C3 (ISO 376) precision load cell with ±1% full-scale accuracy and optional factory calibration certified to ISO/IEC 17025 by CNAS-accredited laboratories.
Can the system perform cyclic fatigue testing?
No—the HP-TLY is optimized for static and quasi-static tests only. For fatigue applications, Jihengpin recommends the HP-FS series servo-hydraulic spring endurance testers.
Is ASTM E4-compliant verification supported?
Yes—verification procedures follow ASTM E4 Annex A1 for force-measuring systems, including repeatability, creep, and zero-return assessments at multiple load points.
What operating system versions are compatible with SpringTest Pro?
Windows 10 IoT Enterprise LTSB (64-bit) and Windows 11 Pro (64-bit) with .NET Framework 4.8 and DirectX 12 runtime.
How is mechanical safety ensured during unattended operation?
Dual redundant safeguards: programmable software travel limits plus hardened steel mechanical stops mounted at upper/lower extremities of the vertical guideways—both independently interrupt power to the servo driver upon activation.