Machine types
- In-line checkweighers
- Pharmaceutical checkweighers
- Food checkweighers
- Bottle and jar checkweighers
- Carton checkweighers
- Pouch and sachet checkweighers
Weight control at production speed
In-Line Checkweighers
Detect underweight and overweight packs, record trends, verify rejection and feed useful process information back to production.
Checkweighers
A checkweigher is a complete handling and control system
Reliable dynamic weighing depends on stable product transfer, correct belt lengths, environmental control, suitable load-cell range, timing and reject design. We define the machine around the pack, speed, accuracy target and production environment—not weight range alone.
Under/overweight detectionTrend and production dataVerified rejection
Inspection scope
What the system can cover
Each check is configured against agreed samples, tolerances and fault responses. Multiple checks can be combined into a single inspection recipe.
Integrated systems
- Combination metal detector/checkweighers
- Upstream spacing conveyors
- Downstream reject stations
- Filler feedback
- Barcode and vision options
- Line-control integration
Control and records
- Underweight rejection
- Overweight rejection
- Production-data recording
- Batch summaries
- Trend monitoring
- Recipe and user controls
Typical products and formats
Tablets and capsulesBottlesJarsCartonsPouchesSachetsTraysCansCases
Production-line integrationOptics, handling, controls and rejection designed as one system.
Engineering priorities
What turns an inspection into a dependable production station
- 01
Confirm target speed, pack weight, dimensions, centre of gravity and line height
- 02
Define the required repeatability separately from the displayed scale division
- 03
Manage vibration, draughts, belt transitions and product spacing
- 04
Select a reject method that removes the pack positively without creating a hazard
- 05
Use reject confirmation, bin-full monitoring and line-stop logic where risk demands it
- 06
Where weight data is used for legal metrology, define the applicable trade-approved configuration at proposal stage
From samples to sign-off
A controlled route from question to production
We reduce risk early by proving the inspection on representative products before final hardware, handling and controls are committed.
Define
Agree the pack, defect, speed, reject risk, data needs and acceptance criteria.
Prove
Run feasibility tests using representative good, bad and borderline samples.
Engineer
Design handling, cameras, lighting, controls, guarding and rejection as one station.
Integrate
Build, validate, install, train and support the system in production.
Useful starting evidence:Product drawingsGood and failed samplesLine videoTarget outputAvailable layout
Questions answered
Checkweighers FAQs
Need an answer for your exact product or line? Send us the application details and we will identify the next useful test.
Ask an application questionWhat accuracy can an in-line checkweigher achieve?
Accuracy depends on pack weight and stability, belt speed, product dimensions, conveyor environment and weighing time. We confirm the realistic performance window from application data and, where needed, trials.
Can a checkweigher control a filler?
Yes. Trend or mean-weight feedback can be sent to compatible filling equipment to reduce giveaway and correct drift. Limits, update rates and authority are agreed with the filler supplier or controls team.
Can metal detection and checkweighing be combined?
Yes. A combination system can share conveyor handling, controls and a coordinated reject strategy. The required detection performance, product effect and available line length must be assessed.
Do I need a trade-approved checkweigher?
It depends on how the weight result is used and the applicable legal-metrology requirements. We identify this early and specify the appropriate configuration where required.