Switched Reluctance Motor – High-Efficiency, Robust Drive for Oil Pumping & Industrial Robotics
Engineered for extreme reliability and energy savings, our switched reluctance motor (SRM) delivers strong performance in demanding applications like beam-pump oil wells and industrial robotics. Built in an ISO 9001, 14001, and 45001 certified facility, every SRM combines patented control technology with rugged design—for long life, low maintenance, and up to 15% higher system efficiency than conventional variable-speed drives.
Unlike induction or permanent magnet motors, the switched reluctance motor has no windings or magnets on the rotor—making it inherently robust, fault-tolerant, and ideal for harsh environments. Key advantages include:
- ✅ True soft start: High starting torque (up to 3× rated) with only 30% of rated current
- ✅ Zero inrush current: Eliminates power surges during startup
- ✅ Continuous low speed operation: Stable performance even at near-zero RPM
- ✅ Frequent start-stop & reversing: Perfect for cyclic or bidirectional loads
- ✅ Phase-loss & short-circuit protection: Fail-safe design prevents damage from electrical faults
- ✅ Power factor up to 0.98: Reduces reactive power and grid strain
- ✅ Exceptional overload capacity: Handles sudden load spikes without tripping
🏭 Ideal Applications
- Oil & gas rod lift systems requiring high starting torque and low speed stability
- Industrial automation & robotics with frequent direction changes
- Harsh or remote sites where reliability > complexity
- Energy-conscious operations seeking IE4+ equivalent efficiency without rare-earth materials
💡 The switched reluctance motor is the smart alternative when VFDs, PM motors, or standard induction drives fall short.
🌍 Quality You Can Trust
- Manufactured under ISO 9001 (Quality), ISO 14001 (Environmental), and ISO 45001 (Safety) standards
- Backed by patented SRM control algorithms and real-world field validation
- No rare-earth materials — sustainable, cost-stable, and supply-chain resilient
Related Product
Why Switched Reluctance Motor? IE5 Efficiency Without Rare Earth Magnets
The Switched Reluctance Motor (SRM) is the most cost effective high efficiency motor for oilfield beam pumps and industrial drives. Unlike permanent magnet motors, SRM uses zero rare earth materials — eliminating supply chain risk while delivering IE5-level efficiency. Field-proven across 200+ wells in China’s Changqing, Daqing, and Shengli oilfields.
Verified Field Data — Changqing Oilfield
| Metric |
Induction Motor |
Jingtao SRM |
| Energy Consumption |
Baseline |
-23.68% |
| Power Factor |
0.78–0.85 |
0.98 |
| Efficiency Class |
IE2/IE3 |
IE5 |
| Max Ambient Temp |
40°C (derated) |
200°C (full load) |
| Rare Earth Dependence |
N/A |
Zero |
Data from 12-month continuous operation at Changqing Oilfield pumping unit application, verified by operator’s SCADA historian.
Specification Highlights
- Efficiency Class: IE5 (premium efficiency)
- Stator Core: Amorphous alloy — 70% lower iron loss vs silicon steel
- Power Factor: 0.95+ across full speed range
- Starting Torque: 2.5× rated torque, ideal for beam pump cyclic loads
- Speed Range: 0–3,000 RPM, constant torque across range
- Cooling: Air-cooled (standard) or water-cooled (high-ambient)
- Certification: IECEx / ATEX for hazardous areas
- Rare Earth: Zero — no neodymium, no dysprosium
- Field Record: 23.68% energy savings vs induction motors (Changqing field data)
SRM vs. Induction Motor vs. Permanent Magnet Motor
| Feature |
Induction Motor |
PM Motor |
Jingtao SRM |
| Efficiency |
IE2–IE3 |
IE4–IE5 |
IE5 |
| Rare Earth Required |
No |
Yes (NdFeB) |
No |
| High-Temp Tolerance |
Moderate |
Poor (demagnetization risk) |
Excellent (no magnets) |
| Starting Torque |
1.5× |
2× |
2.5× |
| Cost |
Low |
High (rare earth) |
Competitive |
| Rotor Robustness |
Moderate |
Fragile magnets |
Solid steel — indestructible |
| Part-Load Efficiency |
Poor |
Good |
Excellent (flat curve) |
Why Oilfields Choose SRM for Beam Pump Applications
Beam pumps operate in brutal conditions: cyclic loads, voltage fluctuations, sand ingress, and 24/7 runtime in remote locations. The SRM is uniquely suited because:
- Rugged rotor: Solid steel lamination with no magnets, no windings, no copper — withstands vibration and shock that would crack PM rotors
- Cyclic load optimized: 2.5× starting torque handles the peak load of each pump stroke without oversizing
- Voltage tolerant: Operates stably across ±15% voltage fluctuation common in remote well sites
- Flat efficiency curve: Maintains >90% efficiency even at 40% load — critical for wells where pump fillage varies
- No demagnetization: Permanent magnet motors lose performance above 150°C; SRM runs unchanged to 180°C
Changqing Oilfield: 23.68% Energy Savings Case
In a head-to-head trial across 50 beam pump wells in Changqing Oilfield, SRM motors delivered 23.68% average energy reduction compared to the existing Y-series induction motors. Annual electricity savings per well: approximately ¥12,000–18,000 ($1,650–$2,480 USD). Payback period: 14–18 months.
Read the full analysis: SRM Motors for Low-Productivity Wells
Get Your SRM Energy Savings Estimate
Send us your motor nameplate data and daily runtime. Our engineers will calculate your projected energy savings and payback period — within 48 hours.
📋 Request SRM Savings Analysis | 📊 Download SRM Technical Datasheet
📞 +86 18661390903 | 📧 [email protected]
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