Define every product
List dimensions, nominal weight, variation, rigidity, centre of gravity and whether contents move.
Buyer and specification guide
How to choose a checkweigher for your production line
The right checkweigher is selected around the product and quality decision—not only weight range and belt speed. Prepare a testable user requirement before comparing suppliers.
01Application first
02Complete line scope
03Measurable acceptance
Short answer
What should you know before choosing a checkweigher?
Define the products, target weights, rate and spacing, required detection difference, cleaning environment, reject philosophy, available line length and the records your quality team needs. Then ask suppliers to prove the proposed arrangement with representative samples.
Project decisions
What the final scope needs to define
Measure the line
Record normal and peak rate, minimum pitch, conveyor height, direction, available length and surrounding equipment.
State the decision
Separate underweight, overweight, missing-content and process-control needs. Define rejection and stop responses.
Set performance
Relate the detectable difference to pack variation and agree how dynamic repeatability will be tested.
Select rejection
Match mechanism, timing, guarding and bin design to pack behaviour, speed and containment requirements.
Specify construction
Define cleaning, stainless grade, ingress protection, belt release and maintenance access.
Map controls and data
List recipes, user access, interlocks, external signals, reports and network interfaces.
Agree acceptance
Set FAT, SAT, training, documentation, spares and production handover before ordering.
Supplier comparison
Questions worth asking every supplier
| Ask | Why it matters |
|---|---|
| Which product and speed support the performance claim? | Prevents a generic brochure value becoming an application guarantee. |
| How is spacing controlled and monitored? | Touching packs can invalidate weight and reject timing. |
| How is a failed reject detected? | The system should respond predictably to confirmation, bin-full and actuator faults. |
| What is included in line integration? | Clarifies conveyors, guards, electrical work, PLC signals and restart logic. |
| What samples are needed for FAT? | Ensures testing represents real products and known fault conditions. |
Application-led engineering
Turn your requirement into a testable machine scope.
We can review products, line layout, rejection and data needs before preparing a proposal.
Discuss your applicationCommon questions
Choosing a checkweigher FAQs
Should I choose by maximum belt speed?
No. Packs per minute, product length, pitch and settling time determine practical speed.
When is a combination system appropriate?
A combined metal detector and checkweigher can reduce footprint, but each function still needs separate performance criteria.
What should happen before ordering?
Review the application, confirm layout, provide samples and agree scope, assumptions and acceptance method.
Checkweigher buyer resources
Plan performance, cost and compliance before choosing a machine
Practical answers for engineering, production and quality teams preparing a UK checkweighing project.
01
Price & cost guide
Understand quotation scope, cost drivers and total installed project value.
Plan a budget →02Accuracy guide
Compare dynamic performance claims using the real pack at line speed.
Define performance →03Buying guide
Build a requirement covering handling, rejects, data and acceptance.
Choose a system →04UK compliance
Connect quantity control, records and corrective action to the line.
Review compliance →Your application, properly defined
Let’s specify the checkweigher your line needs.
Share pack details, target weights, line speed and any inspection or data requirements.