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Through Hole Load Cell

GSS416 Donut Through Hole Load Cell

♦ High precision, high stability, good output symmetry
♦ It is used to measure the force acting on a fastener or shaft, such as a bolt or in a hydraulic press.

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Load Cell Central's through hole load cells, often referred to as donut load cells or load washers, are typically used to measure the force acting on a fastener or shaft, such as a bolt or in a hydraulic press. It also offer high accuracy and high stiffness. The standard models can be modified or customized to meet your requirements.

Specifications

Range

120, 180, 220,260,330, 400KN

Sensitivity1.5±0.1mV/V
Comprehensive error (%F.S)0.1%F.S

Creep

±0.1%F.S/30min

Non-linearity

±0.05%F.S

Hysteresis

±0.05%F.S
Repeatability±0.05%F.S

Temp.effect on zero

±0.03%F.S/10℃

Temp.effect on span

±0.03%F.S/10℃
Input resistance735±35Ω
Output resistance700±3Ω
Insulation resistance≥2000MΩ
Excitation voltage5~12VDC
Operation temp. range-20~+70℃
Ultimate overload120%F.S
Ultimate overload (%F.S)150

Dimension


GSS416尺寸.jpg

GSS416尺寸表.jpg

Application


GSS416应用.png

1. Prolonged Monitoring changes in loads on anchor by excavation. 

2. Measuring the temporary tension in cable installed part of bridges. 

3. Checking the stability and evaluating the effectiveness of support system such as retaining wall, earth anchor.

4. Earth Anchor Method, Prolonged Monitoring Axial load on V.W Rock Bolt. 

5. Made as High Strength waterproof type and well-used for file test.



HOW TO INSTALL


1. When installing in Earth Anchor, process the wale in advance according to Load Cell standard.

(To prevent Flange of wale and strain of Web, you should install Stiffener.) 

2. Connect the Cable and then record zero using measuring instruments. 

3. Place bottom loading plate, load cell, top loading plate and distribution plate in order on the Processed wale to be 

vertical to Anchor. 

At this point, note that Anchor line should not reach to the wale or cell. 

4. After pulling with Expected Axial load using stress tensile machine, install Anchor. 

At this point, note that eccentric should not be on Load Cell, to minimize the loss of Prestress, 

if using Oil Jack, insert male cones after several hours(Soil : 5min., Rock : 2min.) under the maximum pressure. 

5. When pulling, measure the stretched amount and check the status of Earth Anchor by comparing with the planned amount