Load Cells in Australia: The Complete Guide for Beginners and Buyers

Posted by

November 5, 2026

On November 2, 2026

A load cell is a small metal block that turns weight or force into an electrical signal, and it sits inside almost every industrial scale in Australia, from the bench scale at a pharmacy to the weighbridge at a quarry gate. Choosing the right one comes down to five questions: how much weight, what kind of scale, what conditions, how accurate, and what electronics will read it. This guide is the starting point for everything we publish about load cells. It explains the basics in plain language, shows you how to match a load cell to a job, and points you to the detailed guides when you are ready for more.

The 60-second explanation

Imagine pressing on a thick steel ruler. It bends a tiny, invisible amount. A load cell works the same way. Inside the metal body, there are very thin foil sensors called strain gauges glued at carefully chosen spots. When weight pushes on the body, the metal flexes by a few thousandths of a millimetre, and the strain gauges stretch or squash with it. That changes their electrical resistance. The load cell’s wiring turns that change into a small voltage, and a scale indicator turns the voltage into a number you can read, such as 12.45 kg.

So a load cell is not a magic box. It is a very precise, very stiff spring with a built-in way of measuring how much it has flexed. If you want the full story, read what is a load cell, and for the electronics behind it see the load cell Wheatstone bridge.

Where are load cells used?

You walk past load cells every day without noticing them. Typical places include:

Shops and kitchens: bench scales, counting scales and deli scales.
Warehouses and loading docks: floor scales, pallet scales and forklift scales.
Roads and quarries: truck scales, also called weighbridges.
Food and drink factories: filling machines, check weighers and mixing tanks.
Farms and mills: grain silos, feed hoppers and batching plants.
Mines and ports: conveyor belt scales and crane scales.
Test labs: material testing machines that pull or squash samples.

The five questions that choose your load cell

1. How much weight will it carry?

Capacity is the heaviest load the cell is designed to measure accurately. A common beginner mistake is picking a cell with exactly the capacity you need. In practice you add a safety margin, and if several cells share the load you divide by the number of cells. Our guide to choosing the right load cell has a worked example, and we add more in five real load cell weighing systems.

2. What shape of scale or structure is it going into?

The mechanical job decides the cell type. Shortly we will match types to applications in a table. For a plain-English comparison, see load cell types and single point vs shear beam vs S-type.

3. What conditions will it live in?

Dust, water, washdown, heat, vibration, corrosive chemicals and explosive atmospheres all change the answer. Aluminium cells are fine for a dry shop counter, while stainless steel sealed cells suit wet or hygienic areas. Read about load cell materials, load cells for food and beverage washdown and hazardous area load cells.

4. How accurate does it need to be?

Accuracy costs money, so buy only what the job needs. A feed hopper that is accurate to 0.5% may be fine. A scale used to sell goods by weight has legal requirements. We explain these in legal for trade weighing in Australia and load cell accuracy classes.

5. What electronics will read it?

A load cell on its own produces a tiny signal. You need an amplifier, indicator, transmitter or data acquisition device to make use of it. See load cell amplifiers and indicators explained and load cell data acquisition.

Which load cell for which job?

Your job	Usual cell style	Examples from our range
Small bench, retail or counting scale	Single point (platform) cell	Tedea-Huntleigh 1042, Sensortronics 92001
Floor scale or small platform scale	Single-ended shear beam	Revere 5123
Hanging, crane or hopper scale (pulling or pushing)	S-type cell	Revere 9363, Sensortronics 60063
Tanks, bins and silos on legs	Shear beam, compression or canister cell	Sensortronics 65016-W
Truck scale (weighbridge)	Compression or double-ended shear beam	Revere ASC2
Fast filling, check weighing, multi-head weighers	Fluid-damped cell	Tedea-Huntleigh 240, Model 9010
Low height, tight spaces	Compression disk or ring torsion cell	Revere RLC, Celtron PSD

You can browse every style in our shop categories: single point bending beams, single ended shear beams, double ended shear beams, S-type load cells, canister load cells, tension and compression disks and damped load cells.

Why do load cell prices vary so much?

A load cell can cost anything from a small amount for a bathroom-scale style sensor to a large amount for a certified, stainless steel, high-capacity cell. The main drivers are:

Capacity: bigger cells use more steel and need more careful manufacturing.
Accuracy and approvals: cells tested to OIML R60 or NTEP cost more than basic ones, because each batch is tested and certified.
Material and sealing: aluminium is cheapest, alloy steel is mid-range, and welded stainless steel is premium.
Special features: fluid damping, hazardous area approvals and built-in surge protection add cost.

We deliberately do not publish a single “price per load cell” because it would be misleading. Send your capacity, quantity and conditions through our contact page for a quote, and read buying load cells in Australia for how to compare quotes fairly.

A simple path from beginner to confident buyer

Learn the language. Skim our load cell glossary in plain English so datasheets stop looking like code.
Understand the signal. Read load cell output and mV/V.
Pick the type and size. Use the table above, then read choosing the right load cell.
Check the rules. If you sell goods by weight, read legal for trade weighing first.
Plan the install. See load cell installation and, for vessels, tank, silo and hopper weighing.
Commission and maintain. Follow load cell calibration, and keep load cell troubleshooting handy.

Guides by application

Common mistakes to avoid

Buying on capacity alone. Two cells of the same capacity can behave very differently in a wet, hot or vibrating place.
Forgetting the weight of the structure. A tank, a platform or a hopper has its own weight (the dead load) that the cells also carry.
Ignoring side forces. Wind, pipes and sloshing liquid push sideways, and cells are designed to measure vertical force.
Mixing cells. Cells in one scale should be matched types and ratings.
Skipping calibration. Every system needs a calibration with known test weights after installation.
Assuming a certificate on the cell makes the scale legal. The complete scale is what gets approved.

Five terms you will meet first

Capacity: the most weight the cell is built to measure, such as 500 kg.
mV/V: how strong its signal is. A common value is 2 mV/V.
Tare: resetting the display to zero with something already on the scale.
IP rating: how well the cell is sealed against dust and water, for example IP67.
C3: a class showing the cell suits scales with up to 3,000 steps of resolution.

The full list is in our load cell glossary.

Brands you will see in our range

We supply load cells from established makers including Revere, Tedea-Huntleigh, Sensortronics and Celtron. Each product page lists the maker, capacities, approvals and datasheet details, so you can compare like with like. If you already have a model number from an old scale, send it to us and we can look for a suitable match, as explained in buying load cells in Australia.

What to have ready when you ask for a quote

A short list saves time: the maximum weight and the weight of the structure, how many support points there are, whether the load is static or moving, the conditions (wet, dusty, outdoors, hazardous), the accuracy you need, whether the scale is for trade, and what you want to connect it to. With those answers, most load cell choices become straightforward.

Frequently asked questions

Is a load cell the same as a strain gauge?

No. A strain gauge is the tiny sensor glued inside. The load cell is the whole machined metal body with the gauges, wiring and protective coating. See strain gauge vs load cell.

Do I need one load cell or several?

A small bench scale usually uses one. Anything with legs or corners, such as platforms, tanks and weighbridges, uses three, four or more, with their signals combined.

Can I use a load cell with an Arduino or a PLC?

Yes, with the right amplifier or converter in between. Our amplifier and indicator guide explains the options.

How long does a load cell last?

With correct mounting and protection from overload, water and electrical surges, a good load cell can last many years. Abuse, not age, is what usually kills them. See repair or replace.

Can you help me choose?

Yes. Tell us what you are weighing, the maximum weight, the environment and the accuracy you need, using the contact page, and we will recommend suitable cells from our shop.

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