Screw anchor monitor & data logger

Utilising the same technology as the Torque Hub, the Torque Spool delivers over 99% accurate torque readings. Data is sent over a robust 2.4 GHz RF FHSS signal to a handheld display / datalogger. The Torque Spool measures not only torque, but also inclination. This torque monitoring and data logging device is mounted between the output shaft and drive tool. To suit MD, UD and XD anchor drives (110,000 Nm to 500,000 Nm).


Reports can be exportable directly from a display, either via email using a smartphone with its’ hotspot enabled, or through an onboard USB port connected to a flash drive.

Reports are exportable from the display via a smartphone, or through its USB port.

Models available

Torque Spools are available for MD, UD and XD Anchor Drives (110,000 Nm to 500,000 Nm).

More than just torque

Digga's Torque Spool provides you with a 99%+ accurate torque measurement alignment indicator and data logging proven solution.

Simple installation

Mounts between the output shaft and drive tool.

Export data logging records

Record torque, pile depth, angle, date, and time with additional user-defined export field options available. Reports are exported as both bare data (.dat file – open in Excel), and as a PDF line chart.

Rated Output (R.O.) 2 mV/V nominal
Nonlinearity 0.1% of R.O.
Hysteresis 0.1% of R.O.
Nonrepeatability 0.05% of R.O.
Zero Balance 0.1% of R.O.
Compensated Temp. Range 16° to 71°C
Safe Temp. Range -54° to 93°C
Temp. Effect on Output 0.005% of Load/°C
Temp. Effect on Zero 0.005% of R.O./°C
Terminal Resistance 350 ohms nominal
Excitation Voltage 5 VDC
Safe Overload 150% of R.O.