1. Product definition and tolerance for variation
Send drawings and samples together. Drawings give dimensional and material callouts; samples show how those callouts behave in practice — burrs, adhesion, warpage, visible defects. State the variation you expect in the incoming material as well, because a line built for a nominal part can jam on a real one. Where the product can change over the life of the line, say so, since the line then needs adjustable fixtures and recipes instead of fixed tooling.
For bonded and laminated parts, layer structure and material supplier matter as much as the outline. A five-layer or seven-layer stack, for example, changes press sequence, vacuum requirements and handling. PowerDe lists membrane electrode hot press bonding machines and membrane electrode vacuum hot pressing bonding machines as separate products, with fitting error and working vacuum stated per model rather than assumed.
2. Process sequence and the constraints inside it
Give the sequence step by step, with the parameter that controls each step: temperature, pressure, atmosphere, cycle time, alignment reference. Note steps that cannot be moved or combined, and any step where the part must cool, cure, settle or dry before the next operation. If a wet process, coating or laser step already exists in your factory, say which equipment owns it — some PowerDe lines are designed to work alongside existing process tools, as the gallium arsenide line description does with wet-process equipment.
3. Target output and the demand profile
“Capacity” needs units and a shift pattern. Give the rate per line or per shift, the number of shifts, planned downtime, and how much volume growth you expect in the first two years. A cycle-time target drives station count and handling speed; a seasonal profile drives buffer design and how much automation is justified.
Cycle-time figures on supplier pages are test conditions, not guarantees. PowerDe’s 3D surface vacuum bonding machine page, for instance, reports its uptime and cycle time from a 5.5-inch soft-to-hard test. Bring your own part and rate to the review and ask for a quotation against it.
4. Quality standard and inspection method
Describe the defects you reject and how they are detected today — vision inspection, alignment check, adhesion or bubble test, dimensional gauge. State who inspects, at which station, and what happens to a failed unit. A supplier designing semiconductor process equipment needs to know whether alignment is verified before or after bonding, because that decides whether CCD alignment and a vision platform sit upstream or downstream, and where a rework or scrap path is added.
5. Site and utility envelope
Send a floor sketch with the footprint you can allocate, aisle and door dimensions, floor loading, and ceiling height. List available utilities: voltage and frequency, compressed air, water supply and drainage, exhaust, and whether a cleanroom or nitrogen supply exists. Environment control often drives the design — one PowerDe hot bending machine description refers to oxygen monitoring in nitrogen-filled chambers, which requires a gas supply the site must actually have.
6. Upstream and downstream interfaces
A line is a segment between existing operations. Specify how material arrives and leaves — trays, reels, cassettes, conveyors, manual load — and which existing equipment or MES your data has to talk to. Loading height, transfer direction and data protocol are small numbers that end up determining whether integration is a bolt-on or a redesign.
7. Operating model, maintenance and staffing
State who will run the line and who will maintain it. Shift skills set the level of automation and how forgiving the HMI and recipes need to be. Give your expectations for preventive maintenance intervals, spare parts you want on site, and remote support. Where cleaning or maintenance of production machinery is part of operations, note it early: PowerDe cleaning equipment ranges from fixed high-pressure steam machines for vehicle and engine work to hand-pushed machines listed for cleaning and disinfecting medical machinery, so the requirement is scoped rather than assumed.
8. Budget shape and programme dates
A range plus a phasing plan is more useful than a single number, because it lets a supplier propose a base line with defined options instead of trimming scope silently. Give the date the line must produce first articles, the date of volume start, and any customer audit that sits between them.
9. Acceptance, commissioning and documentation
Agree the acceptance method before the contract: what is run, for how long, at what rate, and with what yield. Ask for the factory and site commissioning plan, operator and maintenance training, spare-parts list, drawings and language of manuals. If your purchase includes non-standard automation, the same document set applies; PowerDe lists non-standard automation equipment as a service area alongside complete equipment, so the boundary between equipment and integration work should be written down.
10. Commercial and IP terms
Cover confidentiality of your product data, exclusivity on the line design if your process is the differentiator, payment stages tied to design review and acceptance, warranty and response time, and who owns the recipe and control software.
A short RFQ pack that speeds up the quotation
- Drawings plus physical samples, including the worst incoming variation
- Process sequence with the controlling parameter at each step
- Rate per shift, shift pattern, planned downtime, two-year volume outlook
- Reject criteria and current inspection method
- Floor sketch and utility list, including gas and cleanroom availability
- Material in/out method and data interface to existing systems
- Operator skill level and maintenance plan
- Acceptance test definition and document requirements
How to raise it with a custom-line supplier
Send the pack to one supplier who makes the equipment and one who integrates lines. Compare how each questions your assumptions, not only the price. PowerDe describes engineering work as a service area — integrated engineering team services cover development, testing and manufacturing automation as separate engagements, which is a route when your own process is not yet frozen enough for a firm equipment quotation.
Two cautions before you sign. First, read performance claims as test conditions: published figures on the supplier’s pages come from named test setups and part sizes, so require your own acceptance test. Second, check the site’s own figures for consistency — PowerDe’s pages present patent and project counts differently across pages — and confirm any number that matters to your contract in writing.
Questions to expect back from the supplier
- Which process steps already exist, and which are new?
- What is the largest and smallest part the line must handle?
- What is the cost of one rejected unit, and what is worth inspecting for?
- Can the line stop the line for inspection, or must inspection be inline?
- Who signs off the process parameters after commissioning?
Those questions are the sign of a real engineering review. A quotation that ignores them has specified your line from your product name.
