RAL1 Low Profile High Capacity Pancake Load Cell

These heavy duty pancake load cells are designed for industrial weighing and testing applications. They have a threaded hole on each side to make it easy to use in your application without additional adapters. They are available in 5000 lb, 10,000 lb, 25,000 lb, 50,000 lb and 100,000 lb. capacities. They can be used in Compression, Tension or Universal mode up to 25000 lb. We recommend it for Compression only above 25000 lb.)

You can buy just the Load Cells or buy the Load Cells with interface devices such as analog signal conditioners, digital USB or wireless load cell interfaces, displays and software as complete ready to use kits.

Highlights

  • Capacities
    RAL1 load cells are available in 5K lb, 10K lb, 25K lb, 50K lb, and 100K lb capacities

  • Calibration Mode
    RAL1 load cells can be used for Compression or Tension or Both (upto to 25K lbs). Above that we only recommend it be used in compresison mode.

  • Accuracy Class & Compensated Temperature Range
    +/- 0.02% to +/- 0.05% from -10C to 40C

    Mounting
    Threaded Mounting Holes on Each End of Load Cell. No need for additional adapters.

  • Construction and Use
    Rugged alloy steel construction. Mechanically robust design. Ideal for calibrating pneumatic and hydraulic press applications.

  • UART/USB Output
    Use UART to connect with Arduino or other microprocessors. Or use USB to connect with PCs

    Wireless Output
    Wireless output via XBee (802.15.4) Industrial Strength wireless or WiFi or BLE for easy connectivity with PCs, Tablets and SmartPhones

    Analog Output
    Analog output via 0-5V DC or 4-20 mA output for easy input to DAQ or PLC

    Certifications
    RAL1 Pancake Load Cell have excellent accuracy but are not NTEP or OIML. Contact us for options if you need that.

    Customize
    Call us for larger capacities or other unique needs. We can custom build them to order as needed.

Mounting Options

The S-Beam load cells have two threaded mounting holes on each end. One can attach the cell between two plates or attach ropes/cables/hooks using eye bolts or swiveling rod ends as shown below. The sensors can be mounted in any orientation. Does not need to be verically mounted. The measured force will be the relative force between the two ends of the load cell.

RAL1 Pancake Load Cell for Compression and Tension
RAL1 Pancake Load Cell with Eye Bolts for Tension Measurement
RAL1 Pancake Load Cell with Eye Bolts for Measuring Tension
RAL1 Pancake Load Cell with Mounting Plates for Compression Measurement

Base Load Cell

Load Cell with Eye Bolts

Load Cell with Rod Ends

Load Cell between Plates

Load Cell Configurations

Pancake Load Cells are based on the classic Wheatstone balanced bridge network design using strain gages. The baseline output is mV/V i.e. if you supply say 10V to the sensor, then the output voltage may vary from 0 mV to 20 mV for a 2 mV/V device. They can be mated and used with digital or analog signal conditioners (digital or analog interfaces) to connect with PCs, PLCs, or simple LCD displays. We offer the following options:

USB Load Cell with DI-1000U Configuration

If you need to do testing and data gathering or want to display values on a PC/Tablet via USB, simply connect the load cell to the DI-1000U Digital Load Cell Interface & use the USB connector on the DI-1000 to connect to a PC via the USB port. The DI-1000U is a signal conditioner & 24-bit digitizer (good enough to handle load cells with 0.02% of full scale accuracy) and handles all the communications functions to talk with USB port of a PC.  When connected this way, the load cell appears on the PC as a virtual COM port. Using a standard terminal emulator you can send commands to the sensor to display loads on screen. They can be displayed either one reading at a time or in continuous operation mode. You can also use Matlab, LabView or other popular programs to communicate and get calibrated readings from the load cell. It would be best if used our LoadVUE Pro application to display, log or plot data on a PC.

RAL1 Low Profile Pancake Digital Load Cell with 24 Bit USB Output DI-1000U and Software LV-1000
Kit Includes:


RAL1 Pancake Load Cell
DI-1000U Load Cell Interface
LV-1000 LoadVUE Pro Software
Add Calibration
Add Accessories

USB Load Cell with DI-100U Configuration

If you do not need the very high precision of the DI-1000U, you can use our DI-100U digital load cell interface with 16 bit ADCs and Serial TTL or USB output.  The DI-100U is sufficient for accuracies of +/- 0.1% of full scale output.  Or in other words if you need to measure +/- 1 lb accuracy over 1000 lb range or +/- 0.1 lb accuracy over 100 lb range, then the DI-100U is more than adequate for your application. If you wish to connect a load cell with an Arduino or other microprocessors or microcontrollers, then you can disconnect the S2U Serial to USB converter adapter and directly communicate via UART. 

RAL1 Low Profile Pancake Digital Load Cell with 16 Bit USB Output DI-100U and Software LV-1000
Kit Includes:


RAL1 Pancake Load Cell
DI-100U Load Cell Interface
LV-1000 LoadVUE Pro Software
Add Calibration
Add Accessories

16 Bit Four Sensor USB Kit

A lower priced version of the above 4 sensor kit is also available with a DI-400U 4 channel USB load cell interface

RAL1 Low Profile Pancake Digital Load Cell Four Sensor Kit with USB Output DI-400U and Software SensorVUE
Kit Includes:


Four RAL1 Pancake Load Cells
DI-400U 4 Channel USB Interface
SensorVUE Software
Add Calibration
Add Accessories

Four Sensor USB Kit

Sometimes you need multiple load cells to measure the forces acting at multiple points. In those cases you may want to use this four load cell kit with a DI-400U Four Channel USB Interface and SensorVUE software to display, log and plot data on Windows PC or Tablet.

RAL1 Low Profile Pancake Digital Load Cell Four Sensor Kit with 24 Bit USB Output DI-1000U and Software SensorVUE
Kit Includes:


Four RAL1 Pancake Load Cells
Four DI-1000U USB Interface
SensorVUE Software
Add Calibration
Add Accessories

USB Load Cell with LCD Display

If you don't want to use a PC or PLC and just want a simple LCD display, you can use our DS-3000-Pro Touch Screen LCD Display. The load cell needs to be mated with a DI-100U or DI-1000U and calibrated together as a pair. This pair can be used with the display or with a PC or tablet. This it gives you a load cell, a DI-1000U USB Interface, LoadVUE Pro software (to use with a PC to display, log and plot data and recalibrate if needed) plus a Touch Screen Single Channel Display if all you need to do is just use for operations for a quick display.

RAL1 Low Profile Pancake Digital Load Cell with 24 Bit USB Output DI-1000U and Digital LCD Display DS-3000-Pro-1 Channel
Kit Includes:


RAL1 Pancake Load Cell
DI-1000U or DI-100U USB Interface
DS-3000-Pro-1 Touch Screen Display
LoadVUE Pro Software
Add Calibration
Add Accessories

USB Load Cell with 4-Channel LCD Display

When you want to display values from multiple load cells on a LCD Display, then use our DS-3000-Pro-4 device as shown below. The DI-400U Four Channel USB Interface connects to four load cells. You can use SensorVUE software to display, log and plot data or just use the DS-3000-Pro-4 display to show individual as well as total load on all connected sensors (up to four).

RAL1 Low Profile Pancake Digital Load Cells with 24 Bit USB Output DI-1000U and Digital LCD Display DS-3000-Pro-4 Channel
Kit Includes:


Four RAL1 Pancake Load Cells
DI-400U USB Interface
DS-3000-Pro-4 Touch Screen Display
SensorVUE Software
Add Calibration
Add Accessories

Wireless Load Cell Configuration

You can use this load cell wirelessly by connecting it to our DI-1000ZP wireless load cell interface. This configuration allows you to wirelessly connect to a Windows/Unix/Mac computer. On a Windows platform, you can use our LV-1000 LoadVUE Pro software to display, log and plot force vs time data effortlessly. The DI-1000ZP uses the 802.15.4 protocol and offers robust connectivity to about 1000 feet in industrial environments. It comes with a battery backup for cordless operation for a couple of hours. If you wish to connect via WiFi or BLE we offer the DI-1000WiFi and DI-1000BLE that makes it easy to communicate with Smartphones as well.

RAL1 Low Profile Pancake Digital Load Cell with Wireless Output DI-1000ZP DI-1000BLE DI-1000WiFi and Software LV-1000
Kit Includes:


RAL1 Pancake Load Cell
DI-100U Load Cell Interface
LV-1000 LoadVUE Pro Software
Add Calibration
Add Accessories

Analog Load Cell Configuration

Some users want a high level 0-5V analog DC output in order to work with existing data acquisition systems or PLCs. Ih that case, you can use this load cell with our AI-1000 Load Cell interface which provides an amplified 0.5 to 4.5V output proportional to the applied loads. We can provide the system together with calibration and the formula to convert from voltage to loads/forces when ordered in this configuration. We also offer the AI-1000-CV with 4-20 mA output if you prefer current output. Please contact us for this kit.

RAL1 Low Profile Pancake Digital Load Cell with Analog Output to Connect to PLC and DAQ
Kit Includes:


RAL1 Pancake Load Cell
AI-1000 Analog Load Cell Interface
Add Calibration
Add Accessories

Application Development

If you are looking to develop your own custom software application, our digital USB load cells and wireless load cell interfaces offer convenient ASCII commands to obtain load information directly from the interfaces/load cells without need for any signal conditioning or data processing. With just a few commands you'll be able to incorporate load/force/weight information into your application. You can also use Visual Basic, Visual C++, Matlab, LABView or any other application development environment to create your custom applications with our interface/load cells.

See our support pages for details.

You can access Sample Code for Visual Basic, Matlab, Python, Arduino and customize it for your own needs.

Downloads

Register on our site and download the Spec-sheets and Solid Models for RAS1.

Spec-sheets
Spec-sheets

Download Technical Specifications

Download
Solid Models
Solid Models

Download Solid Models

Download

Alternative Load Cells

We offer a range of S-beam Load Cells for tension and compression force measurement. The S Beam load cells can be used to measure pull or push forces. They range in size from just 20 mm or less than an inch height and capacity as small as a few pounds of force to several inches in height and up to 40,000 lbs of push or pull force. These load cells can be calibrated to be used in compression only, tension only or in universal mode. Just specify the right calibration when buying the load cell you need.

RAS1
RAS1

This is the most versatile S-beam Load Cell we offer
Capacities: 25 lb to 40K lb
Accuracy Class: 0.5% of full scale
Comp. Temp Range: -10C to 40C

Explore
RSB6
RSB6

Low Profile Pancake Load Cell with Through Holes
Capacities: 550 lb to 11K lb
Accuracy Class: 0.02% of full scale
Comp. Temp Range: -10C to 40C

Explore

Watch and Learn

FAQ

Why is it called a Pancake Load Cell?

Because of its distinctive pancake structure! It has a cylindrical body with a hub and spoke construction inside the load cell.

What is unique about the Pancake Load Cell?

Pancake load cells are designed for high capacity tension and compression force measurement. They have a threaded hole at each end that makes it easy to attach eye bolts or rod-ends into which hooks or pins can be inserted. You do not need to buy another adapter to use the load cell in both directions.

What technology is used to make the pancake load cell?

The pancake load cell is a resisitive load cell device. It is built using strain gauges arranged in a wheatstone bridge network. A strain gauge is basically a resistive element that is piezo resistive i.e. it changes resistance in response to changes in strain (change in length over original length). Applied forces lead to induced stresses that lead to displacement and strain. The change in strain leads to a change in resistance. So with an applied inout voltage one can measure tiny changes in voltage and use this to infer the applied force.

Do you offer signal conditioners and displays?

We offer signal conditioners that allow you to connect to a computer (PC. Mac or Linux) via USB (DI-100U or DI-1000U) or wirelessly via XBee, WiFi or BLE protocols (DI-1000ZP/DI-1000WiFi/DI-1000BLE).
We also offer sensor interfaces with UART output (DI-100U) to connect to a microcontroller to develop an embedded application. Our analog signal conditioner (AI-1000 and AI-1000-CV) make it easy to get  analog 0-5 V voltage output or 4-20 mA current output. Or simply connect to our touch screen LCD display to show values on a simple physical display.

What software do you offer?

We offer free LoadVUE Lite software to display force/weight on a Windows 8/10 PC/Tablet. The LoadVUE Pro software allows you to display, log & plot force/weight data, recalibrate sensors and get remote support. SensorVUE extends support to an unlimited number of sensors as well as all types of sensors we offer. ControlVUE software extends the functionality offered by SensorVUE and adds the ability to control external devices based on sensor values through a USB Relay with one to eight channel. Our sensors and interfaces allow you to write your own code as well! We also offer customization and custom softrware development services to meet your specific needs!

Do you offer calibration service?

Yes. We offer calibration service on new sensor purchases as well as recalibration service for previously purchased sensors. We use NIST traceable reference standards to perform and validate the calibration and provide a free calibration certificate as part of the service. We are NOT ISO certified.

How can I get pricing information?

You can register on our website, login and see all prices, download spec sheets and solid models. You can also send us an email with your contact information and shipping address and we will be happy to send you a formal quote.

What is your return policy?

We give you a 30 day guiarantee for you purchase. You can exchange or return your purchased products for a refund of the purchase price of the product. Any calibration service fees, shipping and payment fees cannot be refunded. Feel free to try out our products risk free and see for yourself how easy we make it for you!

What is the typical lead time?

We need between one and two weeks usually to ship your order for items in stock. This is because we have to make your sensor, interface and calibrate them together, make sure the quality meets all specs and then pack and ship it to you. We offer expedited processing options if you are in a rush and need to get sensors sooner. If out of stock or if sensors are needed in volume, we could take 4-6 weeks or longer. Please contact us to get an estimate of price and lead time for your particular needs.

Do you offer educational discount?

We believe teaching young kids and encouraging R&D is crucial to make this world a better place. We support teaching and research activities in educational institutions with a 10% education discount on purchased products in exchange for sharing write ups, pictures, video clips and other material we can use in our marketing materials on and off line.

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