Product Details
China Manufacturer Donut Washer type Through Hole Load Cell
Product Description
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 |
repeatability | ±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
Xi'an Ruijia Measuring Instruments Co., Ltd. is a manufacturer of force sensors and related products, dedicated to providing high-quality solutions for various industries. With a commitment to innovation, reliability, and precision, we have established ourselves as a trusted partner for businesses worldwide.
Founded in 2005, we have accumulated years of experience in the field of weighing technology, enabling us to deliver products tailored to our customers' needs. Our product range includes a comprehensive selection of load cells, weighing modules, controllers, systems, and software solutions. We offer a diverse array of weighing products suitable for industrial automation, logistics, transportation, healthcare, retail, and more.
At Xi'an Ruijia Measuring Instruments Co., Ltd., we pride ourselves on our technological expertise and dedication to continuous improvement. Our team of skilled engineers is committed to developing innovative solutions that push the boundaries of weighing technology, ensuring our products meet the highest standards of performance and accuracy. We serve a global clientele, catering to diverse market sectors across the globe. Our products are utilized by businesses of all sizes, from small enterprises to multinational corporations, in both domestic and international markets.
Quality is at the core of everything we do. We adhere to stringent quality control measures throughout the manufacturing process to ensure that our products meet or exceed industry standards. Our commitment to quality has earned us a reputation for reliability and excellence among our customers. Besides, customer satisfaction is our top priority. We offer comprehensive customer service and support, including technical consultation, pre-sales assistance, and after-sales service, to ensure a seamless experience for our clients.
With a focus on innovation, quality, and customer satisfaction, Xi'an Ruijia Measuring Instruments Co., Ltd. is your trusted partner for all your weighing sensor needs. Contact us today!
FAQ
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.
Company Profile
Xian Ruijia Measurement Instruments Co., Ltd is a professional manufacturer of sensors in state-level high-tech industry development zone, Xi’an of China. Since 2005, We focused on development and production of
pressure sensor, weighing sensor etc.

Xian ruijia have first-class technical team, with strong R & D
capability and rich experience in production management. In the
production line, we have the most advanced and completed sets of
equipment to ensure product quality and reliability.

Xian ruijia brings together the top professional talents and technology. The
software and hardware of our advanced testing equipment designed by
our professional and technical personnel. We have obtained several
utility medel patents from National Patent Office.
We provide customers with affordable, high-quality products. In
order to achieve the advantages of Asia, the full benefit in terms
of quality and cost, procurement of key components from Germany and
the United States, and the production and manufacturing in China.
We have the best supply chain in China and parts manufacturers, and
a solid record of quality and innovation, to prove that our many
years performance of the sensor.

Quality product performance and good reputation, our products are
not only successful sales in China, and have been exported to more
than 50 countries and regions in the world, including: Germany,
Japan, Italy, Russia, Japan, South Korea, Turkey, Brazil , India,
the United Arab Emirates, Saudi Arabia and other countries, the
products are subject to a great welcome and praise.
Looking forward to the future, the company is moving into the fast
lane of development and will continue to adhere to the concept of
creating quality products to serve global customers. Our mission is
to be the most valuable and competitive automotive sensors in the world.