Why you must ask first, lah
You want automation but scared later hor, wrong vendor, whole line choke. Many manufacturers same problem — promises big, delivery small. If you work with prismatic battery pack assembly line suppliers you must be clear about throughput, safety, and changeover time, especially when the line handles prismatic cell battery pack modules that are delicate and safety-sensitive. I’ve seen production floors in Shenzhen where small choices on fixturing caused big rework; start with the right questions so you don’t waste months and money.
1. Can you show real installations like mine?
Ask for site references and photos or videos of similar capacity and product type. If vendor gives generic case studies only, red flag. Look for evidence they handled prismatic cell dimensions, fixings, and thermal management. Pitfall: vendor shows lab demo but not live production — that doesn’t prove reliability.
2. What is the guaranteed takt time and how do you validate it?
Get concrete numbers: cycle time per unit, downtime assumptions, and how takt holds up under peak scenarios. Demand they explain validation steps — simulation, pilot run, and OEE tracking. Pitfall: vague “meets your target” statements without test data.
3. How modular and upgradeable is the system?
Ask whether modules can be swapped for new functions or higher-speed tooling. Automation should allow incremental upgrades, not full replacement. Check mechanical interfaces, control architecture, and spare-channel availability. Pitfall: proprietary modules that force you to buy only vendor parts.
4. Who owns the software and can we modify it?
Confirm software licensing, source code access, and customization policy. You want ability to tweak recipes or HMI layouts without long waits. Also ask about software rollback and version control. Pitfall: locked-down software that prevents necessary tweaks on the fly.
5. What are the safety and compliance credentials?
Ask for machine safety certificates, risk assessments, and how they handle cell-specific hazards such as thermal runaway mitigation, isolation, and ESD. Verify conformity to local standards and any third-party audits. Pitfall: safety claims without documented assessments.
6. How do you handle quality assurance and traceability?
QA must tie to trace data per unit — serial numbers, torque logs, sensor readings, inspection images. Ask how they store and retrieve data, retention policy, and interface to MES. Pitfall: manual record-keeping that breaks traceability for recalls.
7. What’s the maintenance model and spare-parts plan?
Clarify mean time between failures, recommended preventive tasks, and average lead time for spares. Ask for a spare-parts kit list and local stocking options. Pitfall: long lead times for critical modules that stop your line for weeks.
8. How will you manage project risks and schedule slippage?
Request a risk register and mitigation steps for common issues: supplier delays, tooling rework, regulatory hold-ups. Demand clear milestones and penalties or remedies for missed dates. Pitfall: only optimistic timelines without contingency plans.
9. What training and handover do you provide?
Make sure operator and maintenance training is included, plus training materials and on-site shadowing during initial runs. Ask for competency acceptance tests for your crew. Pitfall: “we’ll show them” without structured training or documentation.
10. What are common integration pitfalls with existing lines?
Get the vendor to list typical problems when linking to upstream/downstream equipment — mismatched conveyors, signal timing, and different MES protocols. Ask how they plan to validate interfaces and handle electrical/noise issues. Pitfall: assuming plug-and-play when custom interfacing is needed.
Short checklist before signing
Before you sign, confirm these items in writing:- Acceptance test plan with metrics.- Spare-parts kit and local stocking option.- Source of safety documentation and third-party audits.- Software license terms and rollback process.- On-site commissioning schedule and operator competency criteria.These short checks stop big headaches later.
Final thought — make it practical, not pretty
Don’t get dazzled by glossy demos. Ask tight, technical questions, demand real-world proof from similar production lines, and make sure the vendor can support the prismatic cell battery pack realities on your floor. A vendor who answers clearly and commits to measurable acceptance criteria saves you time and scrap, and that’s the kind of result FHS helps deliver when the questions are asked properly.