load cell specifications

mV/V (millivolt per volt) is the raw strain gauge signal, typically 2 mV/V. It needs a sensitive readout box. 4-20 mA is an amplified current loop that travels farther without electrical noise, and it’s handy because you can detect cable breaks (zero current). RS485 is a digital protocol like Modbus—good for daisy-chaining multiple sensors onto a single bus and integrating directly into a SCADA or cloud logger. Kingmarch can supply any of these depending on your monitoring system.

Start with the working load of the anchor, then add a safety factor. For ground anchors, the design load often ranges from 100 kN to 2000 kN. You’d size the load cell so the expected maximum is about 70%–80% of its rated capacity to avoid overloading while keeping good resolution. If you’re unsure, provide the anchor type and strand count—Kingmarch engineers normally help with the selection.

Yes, they are. Analog mV/V types work with almost any strain gauge logger (Vishay, Geokon, RST, etc.), while the 4-20 mA and RS485 versions connect to general-purpose industrial PLCs, SCADA, and wireless nodes. The spec sheet always includes wiring codes and calibration factors to simplify setup.

IP68 means the cell is dust-tight and can handle continuous immersion in water beyond 1 meter depth, under conditions specified by the manufacturer. In practice, Kingmarch IP68 load cells use double-sealed cable glands and fully welded housings. This is critical for long-term soil nail or basement monitoring where the sensor sits in wet clay year-round.

Absolutely. Center-hole and annular load cells are standard for rock bolts and tiebacks. Kingmarch regularly modifies inner diameters, outer dimensions, and loading platens to fit existing hydraulic jacks and bearing plates. Just share the mechanical drawings of your anchoring system, and we’ll confirm the feasible modifications.