Requirement
State what the complete solution must achieve for in-line weight checking of sealed pouches, including your production pattern and who will review the result.
Dynamic production weighing
Pouch Checkweighers Specification Checklist
Use this practical checklist to describe your requirements for pouch checkweighers around representative packs, measured product and tare variation, line conditions and known test packs, line connections and required results.
A useful specification for pouch checkweighers describes your operating range, line connections and required results while leaving room for the supplier to propose the best method.
Use this checklist for in-line weight checking of sealed pouches and separate confirmed facts, realistic ranges and items that need a trial.
On the production floor
Describe what the complete process needs to achieve — Pouch Checkweighers
Plan pouch checkweighers around the smallest meaningful weight difference, normal product and tare variation, pack transfer, line speed, reject confirmation and traceable test evidence. A clear brief should state the operating range for filled pouches, flexible pack shape and pouch-to-pouch tare variation and your requirements for test packs, challenge method, records and production response.
Discuss your application
Your checklist
Application, operation and results
Product, part or pack
Operation and interfaces
Results and support
Write measurable requirements
For Pouch Checkweighers, turn each checklist item into a range and a test
Range
Record normal and credible extremes for filled pouches, flexible pack shape and pouch-to-pouch tare variation, smallest meaningful weight difference and acceptance window and pack dimensions, stability and conveyor presentation; avoid relying on one nominal value.
Check
Define representative examples from in-line weight checking of sealed pouches, the method, repetitions, acceptable range and result record so you and the supplier share the same expectation.
For pouch checkweighers, use “shall” only for a requirement that can be demonstrated. Keep preferences, assumptions, provisional line connections and future options clearly separate.
Connected responsibilities
Be clear about what sits around your pouch checkweighers
Your final pouch checkweighers scope must also account for reject device, removal confirmation and reject-bin state, test packs, challenge method, records and production response, current regulations and the conditions at your site.
- A checkweigher can only detect a fault that creates a meaningful weight difference.
- Normal product and packaging variation must be understood before setting an acceptance window.
- A reject signal is not proof that the failed pack was physically removed and confirmed.