Donut/Through Hole Load Cell
LTH Series is a Donut Load Cell (aka Thru Hole load Cell) is a variation of a low profile compression load cell and features a compact, smooth thru-hole design for use in applications which require the load structure to pass thru the sensor.
Typical applications include:
- press, Inline compression applications (3D printer extruder tension);
- bolt force measurements (bolt loading);
- clamping forces;
- overload monitoring post or leg mount;
- Bearing Proof Load Tester;
- and rolling mill systems.
Fig 1: Donut Load Cell - Force Washer / Bolt Fastening Application / Clamping Force.
Offered in either tension or tension / compression models, measuring load ranges from 5lb to 50,000 lbs. The standard sensor output is mV/V. Amplified output available via in-line amplifiers, such as FUTEK Signal Conditioners (link).
The standard LTH Through Hole Load Cell model has a very robust construction available in 17-4 Stainless Steel, with an I.D. range of 1/8” to 3/8” and a 10 feet long 29 AWG 4 conductor shielded Teflon cable. You will also find Thru-Hole Load Cell and donut load cells for external matched output readily available.
If you need special modifications or a complete customized sensor design, please don’t hesitate to contact FUTEK.
Want to learn more about Strain Gage Load Cell? Visit the "How a Load Cell works" page! 
