factory-direct customized load cell, built to the application-specific capacity and accuracy your project requires.
The WST703 is a customized load cell. All figures on this page come from the factory parameter sheet — what you read here is what ships.
Contact our engineers for the complete datasheet and design-in support.
Model: WST703 Series | Range: 300–1000 με | IP65 | Alloy Steel / Stainless Steel
The Vektorforce micro strain sensor is a weldable strain transducer designed for
silo and tank weighing, stress monitoring of heavy equipment, and
structural health monitoring of large steel and concrete structures. It mounts directly
onto the measured structure without modifying the existing design and without stopping
operation, and delivers reliable peak-value measurement in harsh industrial environments.
The sensor is welded or bolted onto the load-bearing member of the structure (silo support leg,
equipment frame, girder, etc.). Because it measures strain directly on the structure, installation
requires no structural modification and no production downtime — a major advantage
for retrofit weighing and monitoring projects. Multiple installation formats are available to match
different structure geometries.
A micro strain sensor measures microstrain (με) deformation in structures and equipment. Typical
applications include silo and tank weighing, stress monitoring of heavy machinery, and long-term
structural health monitoring of bridges, buildings and large steel structures.
Yes. This sensor mounts directly onto the existing structure without modifying the equipment and
without stopping operation, which greatly reduces retrofit cost compared with traditional load cell
installation.
The measuring range is 300–1000 με with a comprehensive precision of 1–2% F.S and a rated output of
1.0–2.0 mV/V, compatible with standard strain gauge instrumentation.
The body is available in alloy steel or stainless steel, both with IP65 protection, suitable for
dusty and humid industrial environments from −20°C to +65°C.
Send us your application requirements and annual usage — our engineers will reply with a
recommendation and quotation within 12 hours. Trial orders are welcome.
Complete technical parameters, as delivered from the factory.
| WST703 Technical Specifications | |||
|---|---|---|---|
| Rated Load (Measuring Range) | 300 ~ 1000 με (microstrain) | Comprehensive Precision | 1 ~ 2% F.S |
| Sensitivity (Rated Output) | 1.0 ~ 2.0 mV/V | Material | Alloy Steel or Stainless Steel |
| Protection Rating | IP65 | Creep | ±0.05% F.S / 30 min |
| Zero Output | ±1% F.S | Temperature Effect on Zero | ±0.1% F.S / 10°C |
| Temperature Effect on Output | ±0.1% F.S / 10°C | Operating Temperature Range | −20°C ~ +65°C |
| Input Resistance | 380 ± 30 Ω | Output Resistance | 350 ± 5 Ω |
| Insulation Resistance | > 5000 MΩ | Safe Load Limit | 150% F.S |
| Recommended Excitation (Bridge Voltage) | 10 V DC | ||
Direct manufacturing with 10+ years of OEM/ODM experience — custom capacities, connectors, cable lengths and branding.
Send your capacity, application and annual quantity — pricing, datasheet and sample options within 12 hours on business days.
Every unit is factory calibrated and inspected before dispatch; parameters on this page reflect shipped goods.
Non-standard housings, mounting patterns and cable exits are engineered around the WST703's strain-gauge body for direct drop-in to existing machinery.
Drawing-based fit
When the catalogue range does not match, the WST703 can be re-rated above or below standard capacities with matched calibration and certificate.
Custom capacity
Sub-sea, cryogenic, vacuum and high-temperature variants wrap the WST703 in special sealing, materials and cable — certified for the application.
Special certified
| Function | Wire Color |
|---|---|
| Excitation + (Exc+) | Red |
| Excitation − (Exc−) | Black |
| Signal + (Sig+) | Green |
| Signal − (Sig−) | White |
| Model | Capacity Range | Typical Application | Choose When |
|---|---|---|---|
| WST703 | — | This page | Current selection |
| WST708 | 5Ton/7.5Ton/10Ton/Customized | Customized Load cell | Alternative model in the same class |
| WST707 | 10t~20t | Customized Load cell | Alternative model in the same class |
| WST706 | 0.5-100kg or customized weight range | Customized Load cell | Alternative model in the same class |
| WST705 | 100-300KN or customized weight range | Customized Load cell | Alternative model in the same class |
| WST704 | 40~1100 kN | Customized Load cell | Alternative model in the same class |
Not sure which model fits your design? Send us your platform size, target capacity and environment — our engineers will recommend the right sensor within 12 hours.
The WST703 meets standard industrial accuracy requirements. Full accuracy figures are listed in the specifications table above.
The WST703 is available in multiple capacity steps. For requirements outside the listed range, contact us — OEM capacities can often be arranged.
Protection class details are listed in the specifications table. Ask our engineers if your environment includes wash-down, immersion or corrosive conditions.
It provides a standard industry output signal, compatible with standard weighing indicators, transmitters and PLC analog inputs.
Standard wiring follows the industry convention: excitation + red, excitation − black, signal + green, signal − white. Always confirm against the datasheet shipped with your batch.
Use the inquiry form on this page or WhatsApp us directly — we reply within 12 hours on business days. Tell us your capacity step, target annual quantity and application, and we will send pricing, the datasheet PDF and sample availability. OEM/ODM options (custom labeling, connectors, cable lengths) are available on request.
Full dimension drawings, performance curves and calibration data — sent to your inbox within 12 hours.
Deepen your selection — application guides, accuracy-class comparisons and installation notes written for B2B engineers.
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