factory-direct spoke type load cell, built to the application-specific capacity and accuracy your project requires.
The WST502 is a spoke type 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.
WST502 press machines or silo weighing system uses compression type load cell, This kind load cell mainly for big capacity use, Strong anti-bias-load capacity.

Complete technical parameters, as delivered from the factory.
| WST502 Technical Specifications | |||
|---|---|---|---|
| Rated Load | 1-470on | Material | Alloy steel or stainless steel |
| Rated Output | 2.85±0.1mv/v | Ingress Protection | IP68 |
| Application | press machines, silo weighing systems, Tank weighing systems, and other smart projects | Comprehensive Error | ±0.05~±0.1%F.S |
| Excitation, Recommended | 10VDC | Safe Overload | 150%F.S |
| Zero Balance | ±0.1%F.S | Ultimate Overload | 300%F.S |
| Creep | ±0.05%F.S/30min | Insulation Resistance | ≥5000MΩ(50VDC) |
| Input Resistance | 4450±100Ω or 1450±10Ω | Cable | 4-Wire Shielded Cable |
| Output Resistance | 4010±0.5Ω or 1402±5Ω | Cable Length | 1t~15t,150t~470t:5m |
| Temp. Effect on Output | ±0.05%F.S/10℃ | Temp. Effect on Zero | ±0.05%F.S/10℃ |
| Compensated Temp. Range | -10~+40℃ | Wiring Code | Exc+:Red;Exc-:Black |
| Operating Temp.Rang | -30~+70℃ | ||
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.
Wheel-end dynamometer rigs use the WST502 as the radial load element to characterise suspension, brake and cornering performance at the hub.
Radial load only
Replace a tension / compression spoke on bicycle, motorcycle and powersports wheels with the WST502 for live wheel-load data without instrumentation legs.
Spoke-fit form
Laboratory chassis dynos and road-load simulators pair two or more WST502 units to reconstruct real-world vertical and lateral wheel loads.
Matched pairs
| Function | Wire Color |
|---|---|
| Excitation + (Exc+) | Red |
| Excitation − (Exc−) | Black |
| Signal + (Sig+) | Green |
| Signal − (Sig−) | White |
| Model | Capacity Range | Typical Application | Choose When |
|---|---|---|---|
| WST502 | — | This page | Current selection |
| WST505 | 120-400KN | Spoke type load cell | Alternative model in the same class |
| WST504 | 0.3-100Ton | Spoke type load cell | Alternative model in the same class |
| WST503 | 30N-1.5KN | Spoke type load cell | Alternative model in the same class |
| WST501 | 0.5-200Ton | Spoke type 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 WST502 meets standard industrial accuracy requirements. Full accuracy figures are listed in the specifications table above.
The WST502 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.
Tell us your capacity step, application and annual quantity. Our engineers reply with pricing, datasheet PDF and sample options within 12 hours on business days.
WhatsApp: +86 158 2902 6027