High Capacity Center Hole Load Cell

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 The ELC-30S-H is a high capacity center hole resistive strain gage type load cell. It is used to determine the load in rock bolts, tieback anchors, etc through a center hole. It is similar to the ELC-30S load cell. It comprises of sixteen 350 Ohm resistance strain gages, wired to form a 1400 Ohm bridge, inside a stainless steel cylinder of high steel strength, in a load cell with a capacity above 5000 kN. The 3500/185 and 5000/202 load cells are welded using the electron beam welding technique.


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Instrument Name

Center hole load cell

Sensor Type

Resistive strain gage, high capacity


8 to 16 gages mounted to reduce positioning effect


To measure large load in rock bolt anchors, tiebacks




3500/185, 5000/202, 7500/227, 10000/210 kN/mm (ID); specify

Key Testing / Calibration

Accuracy test, Overload test

Key Feature/Advantage

3500/185, 5000/202 load cells are hermetically sealed with electron beam welding, great resistance to extraneous forces, long fatigue life, protected against dust, moisture and adverse environmental conditions

Protection (Waterproofing)

IP-68, water resistant up to 10 mwc

Dimension (mm)

Depends on range

Other Load Cell Products


Center Hole Load Cell


Hydraulic Center Hole Load Cell


Solid Load Cell


High Capacity Solid Load Cell

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