Description
The WLW-Series is a high-capacity, horizontal electro-hydraulic servo tensile testing machine engineered for large-scale static & dynamic mechanical testing of:
- Steel wire rope & cables
- Power line fittings
- Safety belts & slings
- Composite insulators
- Anchor chains
- Structural components
Performs tensile, compression, load-holding, reciprocating, fixed-elongation, and fixed-stress tests.
Law-Series Hydraulic Steel Wire Test Machine
Three closed-loop control modes:
- Stress
- Strain
- Displacement
Auto-calculates: Fm, Fb, ReH, ReL, Rp0.2, Rm, A%, Z%, E Real-time curves + printable reports.
- GB/T 228.1 / ISO 6892-1 / ASTM E8 – Metallic tensile
- GB/T 8358 – Steel wire rope breaking force
- IEC 61284 – Overhead line hardware
- GB/T 14370 – Anchor chain tensile
- GB/T 2611 – Testing machine requirements
- Horizontal design – ideal for long specimens (3–15 m)
- Electro-hydraulic servo – smooth, high-force precision
- Triple closed-loop control (stress/strain/displacement)
- High-stiffness twin-column frame
- Hydraulic auto-clamping grips – self-centering, fast
- Long actuator stroke (1000–1500 mm)
- Digital + PC control – real-time data, curve display
- Safety: Overload, rupture stop, limit protection
| Model | WLW-200 | WLW-500 | WLW-1000 | WLW-5000 |
|---|---|---|---|---|
| Max Test Force | 200 kN | 500 kN | 1000 kN | 5000 kN |
| Accuracy Class | Class 1 | ← | ← | ← |
| Force Range | 2–100% FS | ← | ← | ← |
| Force Accuracy | ±1% | ← | ← | ← |
| Force Resolution | 1/300,000 | ← | ← | ← |
| Piston Stroke | 1000 mm | 1000 mm | 1200 mm | 1500 mm |
| Effective Test Length | 3–10 m | 3–12 m | 5–15 m | 5–15 m |
| Test Speed | 0.1–100 mm/min | ← | ← | 0.1–80 mm/min |
| Specimen Diameter | Ø5–30 mm | Ø8–40 mm | Ø10–60 mm | Ø20–120 mm |
| Grip Type | Hydraulic wedge / pin | ← | ← | Bolt-type |
| Power | 3 kW | 5 kW | 7.5 kW | 15 kW |
| Weight (approx.) | 1800 kg | 2500 kg | 3500 kg | 8000 kg |


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