Description
Features – Pumpjack Load Cell (Donut Style)
- Provides reliable signals for well monitoring and pump-off control systems
- Designed and built to operate in severe field conditions
- Redundant environmental sealing ensures long life in demanding locations
- Available with customer specific connector
- Typically 4 or 6 pin Molex type
Product Details & Industry Applications
The C04 Pumpjack Load Cell is a rugged, through-hole sensor engineered for accuracy in harsh conditions. Its donut style load cell design allows bolts, rods, cables, or polished rods to pass directly through the center. This makes it ideal for pumpjack load monitoring, well optimization, and pump-off control systems.
Built for extreme reliability, the C04 pumpjack load cell features redundant environmental sealing to withstand severe field environments. The robust housing ensures long service life, even under vibration, dirt, and temperature extremes.
Installation is simple. The donut style geometry makes it faster and cleaner to mount inline compared to side-mounted sensors. It can be retrofitted onto legacy systems or integrated into new digital monitoring setups without major changes.
Beyond pumpjack use, the donut style load cell is widely applied in industrial tensioning, bolt preload verification, press and die setups, jacking systems, and structural test rigs. Its clear load path design makes it versatile while maintaining accuracy.
Key Benefits
- Through-hole, inline measurement — capture force directly on a rod, bolt, or cable without reworking the structure.
- Field-ready construction — designed for harsh, dirty, high-vibration environments; redundant sealing helps keep moisture and dust out.
- Consistent signals for control systems — ideal for well monitoring and pump-off control, helping protect assets and optimize production.
- Flexible integration — available with customer-specific connectors to match your wiring and instrumentation standards.
- Retrofit-friendly — donut form factor makes it easier to add force measurement to existing assemblies.
Industry Applications
- Oil & Gas (Pumpjack / Well Monitoring): Monitor polished-rod loads and trigger pump-off logic to prevent over-travel and reduce wear.
- Wireline / Service Operations: Verify tension during handling and interventions where inline measurement is preferred.
- Industrial Tensioning & Bolting: Measure bolt preload, tie-rod tension, or anchor loads in presses, molds, and heavy machinery.
- Testing & Commissioning: Use in structural test rigs, load verification setups, and QA environments that require repeatable, traceable results.
Frequently Asked Questions
What is a donut style load cell?
It’s an annular (through-hole) sensor that measures force around a fastener, rod, or cable that passes through its center. This geometry keeps the load path straight and simplifies retrofits.
Can the C04 handle severe outdoor environments?
Yes. The C04 is designed and built for severe field conditions and uses redundant environmental sealing to support long-term reliability in challenging sites.
Is it suitable for pump-off control systems?
Yes. The C04 provides reliable signals used in well monitoring and pump-off control, helping operators automate protection and improve uptime.
What about connectors and wiring?
The C04 can be supplied with customer-specific connector options to match your installation—commonly multi-pin styles—so integration is straightforward.
Can I use it outside the oilfield?
Absolutely. While it’s proven in pumping applications, the donut style is also popular for industrial tensioning, bolt preload checks, and structural testing where inline load measurement is required.
Why Choose the C04 Donut Style Load Cell?
When you need accurate, inline force measurement in a compact form factor—and you want hardware that tolerates real-world abuse—the C04 is a smart choice. Its donut geometry simplifies installation, its sealing and construction support long service life in severe conditions, and its signal stability makes it a reliable input for control and monitoring systems in both oilfield and industrial settings.
Specifications
| Model C04-30K | Model C04-40K | Model C04-50K | |
| Weight Capacity | 30,000lb / 13,600kg | 40,000lb / 18,400kg | 50,000lb / 22,680kg |
| Accuracy | +/- 0.25% | ||
| Operating Temperature | -40F to 140F / -40C to 60C | ||
| Safe Overload | 150% | ||
| Full Scale Output | 2mV/V @ full load | ||
| Maximum Excitation | 15 V ac or DC | ||
| Bridge Resistance | 700 ohms nominal | ||
| Approximate Shipping Weight | 6lb / 2.7kg | ||
| Specifications subject to change without notice. | |||
Documents
C04 Mechanical Drawing
