Before the order: the documents that define the job
Ask for a written process specification first. It should record your product dimensions and thickness range, the film or adhesive you intend to apply, the target throughput, and the acceptable defect definitions. A supplier cannot design alignment tolerance or roller pressure around a sentence such as "high precision". They can design around a stated fitting error and a stated cycle time.
Alongside it, request the interface documents: the machine footprint, utilities and compressed-air requirements, the power supply, and the floor or layout drawing. On our side these items come from engineering before build, and we would rather settle them on paper than in the field. If the machine will sit next to other process steps, ask for the loading and unloading heights and the transfer method at both ends.
During design review: what to ask to see
A design review package normally includes the general arrangement drawings, the vacuum system layout, the alignment scheme, the control system architecture, and the bill of materials for purchased components such as pumps, sensors, PLC and vision cameras. This last item matters more than buyers expect. If a component is discontinued or hard to source in your country, spare-part supply becomes a maintenance problem years later, and it is your problem unless the specification says otherwise.
For bonding work on curved or flexible parts, ask for the tooling concept as well. The automatic alignment large-size curved surface lamination machine uses a dedicated arc mechanism together with CCD alignment and roller bonding, and that mechanism has to be matched to your part geometry. Seeing the tooling proposal early avoids rework on the part design later.
Before shipment: the acceptance record
Do not accept a machine on visual inspection alone. Ask for a factory acceptance test report that states the test conditions, the test parts used, the number of cycles run, and the measured results against the agreed criteria. Alignment accuracy, bubble and particle rates, vacuum hold, and cycle time should all appear as numbers, with the measurement method noted. If your own defect standard differs from the supplier's, this is the point where the gap surfaces, and it is far cheaper to close it in the factory than after installation.
Request the run samples themselves, kept and shipped with the machine. Physical samples let your process team compare against them when the line is requalified months later, and they settle disputes about whether a defect is normal.
At handover: the paperwork your maintenance team needs
Ask for the manuals in a language your operators read, including operation, maintenance, troubleshooting, electrical schematics, and pneumatic diagrams. Add a spare-parts list with model numbers, a consumables list with replacement intervals, and the calibration procedure for any measurement function on the machine. Where a piece of process knowledge lives only in a recipe inside the controller, ask for it in written form too. Recipe parameters that only one engineer understands are a single point of failure.
Training should come with a scope statement: who is trained, on what, for how long, and what they are expected to do independently afterwards. Commissioning support and the response arrangement for faults should also be written down rather than agreed verbally.
A short checklist for your next enquiry
- Process specification signed by both parties, with defect definitions
- Footprint, utilities, power and layout drawings
- Bill of materials for purchased components, with model numbers
- Factory acceptance test report with measured values and test conditions
- Run samples retained and shipped with the machine
- Operation, maintenance, electrical and pneumatic documentation
- Spare parts, consumables, and written recipe parameters
- Training scope, commissioning plan, and fault response arrangement
Shenzhen PowerDe Automation Precision Equipment Co., Ltd. builds vacuum laminating, bonding and debubbling equipment in Shenzhen, and we supply the documentation listed above with our semiconductor process equipment. If you want a second opinion on a specification you already hold, send it to us and we will mark the points that are likely to cause disputes at acceptance.
