Automation decisions get made backwards almost everywhere. Someone reports that a competitor runs fewer operators, a budget is approved, and two years later the cell is installed, underutilised, and impossible to change because the product moved on. The assessment that should have come first — whether this operation, at this volume, with this product stability, actually needs automation — was skipped because it is slower than asking for a quote.
The following is the assessment sequence we suggest running before an automation budget is requested. It is deliberately unglamorous, and that is why it works.
Fix the product before you automate the process
Automation multiplies whatever design you give it, including the parts of the design that were never intended to be repeated. Check whether the product is genuinely stable: how many variants you will run, how often the drawing changes, and which features are there by decision rather than by habit. A feature that exists because it was easy in a prototype becomes expensive at the second year of automated production, and it is far cheaper to remove during development than after the cell is commissioned.
Ask the design team, on the record, what they expect to change in the next eighteen months. Write the answers down. Automation designed against a frozen drawing that nobody believes in is the most common cause of a cell that never reaches its payback.
Measure the operation you have, not the operation you imagine
Time the manual operation yourself, with a stopwatch, across a full shift and across at least two operators. Record cycle time, changeover time, the rate of rejects, rework, and how often the operation stops for reasons that are not the operation. Written procedures describe the intended process; your observation describes the one you would be automating. The gap between them is usually where the business case dies.
Separate variability into two kinds: variation the operator causes, and variation the part causes. The first responds to training and tooling. Only the second needs automation, and it is the one most business cases silently assume away.
Test volume against the changeover, not just against the cycle
Volume on its own justifies very little. What decides the case is run length: how many parts you make before something else is made. High volume with short runs is a poor automation candidate, because the cell spends its life being reset, and reset time is where automated cells lose their advantage. Take your last year of production data and calculate the average run length and the number of changeovers per week for the operation in question.
If changeover dominates, the correct answer is usually a semi-automated station with fast fixturing — a semi automatic roller bonding equipment approach rather than a fully automatic line — because it buys consistency without demanding stability in the product mix.
Put a price on the reasons nobody puts in spreadsheets
Labour saving is the easiest number to write and often the smallest one. Cost out what you actually lose today: scrap and rework caused by technique drift between operators, the time lost to faults caused by manual handling, output you decline because you cannot staff the operation, and the inspection you perform to catch what the process cannot hold. Also cost the training and turnover time for the role. Automation that removes a position you cannot recruit for is worth more than the wage line suggests.
State every assumption next to its number, with a source. An assumption-free business case is not more confident — it is just harder to challenge when it is wrong.
Decide which capability you must own and which you can buy
Some automation is core to your product and must stay in-house with the ability to change it. Some is standard handling that you will never differentiate on, and building it yourself costs engineering you need elsewhere. This is the question behind equipment manufacturing automation services: not whether outside help is available, but which part of the line you should refuse to outsource. Answer that before you talk to suppliers, because it decides what you ask them to price.
Where the need is specific rather than catalogued, non-standard design is a legitimate route — see what falls under non-standard automation equipment. The test is simple: if two suppliers can quote it almost identically, buy it. If nobody can quote what you actually need, that is a design project, and it should be scoped as one.
Prove it on one unit before you scale
Assess with a single cell running your real parts on your real schedule, and measure it against the manual baseline you recorded earlier. Accept nothing from a demonstration on somebody else's samples. Give the trial long enough to cover a changeover, a shift handover, and at least one week of unattended running with your own maintenance support.
Judge the trial on availability and quality consistency, not on best observed cycle time. A cell that runs at your target for four hours and then needs help has not yet met the specification, whatever its peak says.
Decide what you will do when the answer is no
A serious assessment must allow rejection. Some operations are better served by better tooling, a redesigned part, a fixture that removes technique variation, or simply a change in how the work is sequenced. Those outcomes are not failures of the assessment; they are the assessment working, at a fraction of the cost of a cell that would have needed two years and a rework programme.
Send us the operation description, your measured cycle and changeover times, variant count and volumes at sales@powerde.net, or call +86 13023198376. We will tell you whether automation suits it, and if it does not, what we would change first. Review the delivery models on our integrated engineering team services page before you decide how to scope the request.
