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The TorqueTrak SPM-iON is a state-of-the-art strain gage-based solution designed to provide torque, RPM, and power measurements on rotating shafts, without the need for shaft disassembly or modification. The system only includes two primary components and does not require a base mount. The innovative chain link design allows for fast lead times, simplified installation, and easy interchangeability between shaft sizes. Electronics are encased in potting and protected by a strong metallic housing, ensuring reliable long-term operation in the most abusive environments.
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TORQUETRAK SPM-ION Modular Shaft Torque and Power Measurement System
The TORQUETRAK SPM-ION is an advanced, non-contact shaft torque and power measurement system engineered for marine propulsion shafts and heavy industrial machinery. Utilizing an innovative modular chain-link collar assembly, the TORQUETRAK SPM-ION clamps directly onto rotating shafts without requiring custom base mounts, extensive shaft machining, or complex on-site welding.
Designed for maximum telemetry precision, the TORQUETRAK SPM-ION pairs a precision strain gage sensor with a high-resolution 24-bit ADC for ultra-accurate torque data collection. An integrated internal gyro measures shaft rotation speed (RPM) directly, allowing the system to calculate real-time shaft power output without installing external optical encoders or running extra cables.
Key Features of the TORQUETRAK SPM-ION
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Modular Chain-Link Collar: Rapidly adjust to fit varying shaft diameters by adding or removing standard chain links without custom machining
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Standalone Clamp-On Design: Requires no fixed base mount or floor brackets, simplifying retrofits on vessel propeller shafts
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24-Bit ADC Precision: High-resolution digital converter paired with strain gage sensing delivers maximum accuracy for torque telemetry
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Built-In Gyro Speed Sensing: Internal gyro measures shaft RPM directly to compute real-time power (kW/HP) without additional cabling
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Extended 2-Year Battery Autonomy: Low-power transmitter electronics with automatic sleep mode extend battery life up to two years between quick replacements
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Fast Lead-Time Deployment: Standardized modular components are pre-stocked for immediate shipping and rapid field installation
Technical Specifications
| Specification | Value / Detail |
| Brand / Manufacturer | Binsfeld Engineering / TORQUETRAK |
| Model / Part Number | TORQUETRAK SPM-ION |
| Product Type | Modular Shaft Torque, Speed & Power Meter |
| Measurement Technology | Strain Gage with 24-bit Analog-to-Digital Converter (ADC) |
| Speed Sensor | Integrated Internal Gyroscope (RPM measurement) |
| Power Calculation | Automatic real-time calculation from torque and speed |
| Mounting Style | Modular Clamp-On Chain Link Collar (No base mount required) |
| Transmitter Power Source | Internal Battery (up to 2 years autonomy with sleep mode) |
| Installation Requirements | Standard hardware tools; no shaft machining or welding needed |
| Application Scope | Marine main propulsion shafts, industrial drive shafts, vessel telemetry |
Package Contents
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1 × TORQUETRAK SPM-ION Transmitter Unit with Integrated Gyro
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1 × Modular Chain Link Collar Assembly Kit
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1 × Precision Strain Gage Sensor Element
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Battery Pack & Mounting Hardware Set
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Installation Manual & Calibration Sheet