What is donut through hole load cell?
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.
What is strength of load cell?
1. High precision, high stability, good output symmetry, both can be used in pressure and tension.
2. It is suitable for measuring and controlling electronic belt scale, silo scale, batching scale, electromechanical combination scale, hook scale and other force value and computer control batching system.
3. The range is selected according to customer's requirement.
Specifications
Specifications: | |||
Range | 120, 180, 220, 260,330, 400KN | Input resistance | 735±35Ω |
Sensitivity | 1.5±0.1mV/V | Output resistance | 700±3Ω |
Comprehensive error (%F.S) | 0.1%F.S | Insulation resistance | ≥2000MΩ |
Creep | ±0.1%F.S/30min | Excitation voltage | 5~12VDC |
Non-linearity | ±0.05%F.S | Operation temp. range | -20~+70℃ |
Hysteresis | ±0.05%F.S | Ultimate overload | 120%F.S |
| ±0.05%F.S | Ingress protection | IP66 |
Temp.effect on zero | ±0.03%F.S/10℃ | Material | Alloy steel |
Temp.effect on span | ±0.03%F.S/10℃ | Cable | Φ5*2000mm |
Dimension
Range (KN) | A | B | C |
120 | 47.4 | 31 | 17 |
180 | 58.4 | 38 | 22 |
220 | 62.4 | 42 | 24 |
260 | 66.4 | 44 | 26 |
330 | 72.4 | 51 | 29 |
400 | 74.4 | 53 | 32 |
Installtion
PURPOSE
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
Process flowchart
Company Information
1. What detailed information do I need to provide if I want to place an order?
We need to know the following information: Capacity, Usage and other related parameters you need.
2. Do you have any discount?
Yes, if you buy large QTY, please send us a email, we will give you a big discount.
3. What terms of payment are available?
We accept T/T, L/C, Trade assurance, Secure payment, Western Union, Paypal, Money Gram, etc.
4.When will you arrange the production?
We will arrange the production immediately after receiving your payment.
5. How do you ensure good product quality?
We have a complete quality control system, all of our products are fully checked by IQC, OQC departments before shipping to our clients.