Mixed-model assembly line simulator

Simulate mixed-model lines before you change the floor.

Model product mix, stations, operators, buffers, and bottlenecks in minutes.
Built for lean teams and consultants moving from batch to one-piece flow.

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Best experienced on desktop

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Why Flowcell

Your future-state line is a hypothesis.
Test it live.

See how product mix changes the bottleneck

Average cycle times can hide the real constraint. Run mixed-model scenarios and see which product, station, buffer, or operator pattern is capping throughput.

Test batch-to-flow changes without touching the floor

Add an operator. Rebalance work. Change the batch size. Try one-piece flow. Each what-if scenario takes seconds to simulate and costs nothing if the numbers do not stack up.

Make the recommendation visible

Use the live simulation and exported reports to show clients or internal teams why the future-state line works, where it breaks, and what needs to change.

How it works

Build the future state in minutes

1
Configure the product mix

Add stations, cycle times, product types, operators, buffers, and movement rules. Mirror the current state or sketch a proposed one-piece-flow cell.

2
Run the mixed-model scenario

Hit play and watch the line move in real time. Speed it up, pause it, or rerun with a different product mix, staffing level, or buffer strategy.

3
Compare the future-state results

Get throughput, bottlenecks, queue behaviour, and operator utilisation. Export to Excel when you need the numbers behind the recommendation.

Founder story

Built after a spreadsheet could not explain the line.

Flowcell started after two full days in a meeting room debating a real assembly line: one line or two, three workstations or four, buffers between stations, and whether fewer workers could flex between more workstations.

The spreadsheet had the process times. What it could not show was whether the future-state line would actually flow, whether walking between stations would hurt productivity, or whether a mixed-model product mix would break the balance.

So Peter went home and built the first rough version of Flowcell. The next day, the team could watch the proposed line run, change the staffing and workstation layout, and see that the idea could work before changing the real floor.

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Pricing

Simple, transparent pricing

Introductory launch price
£30
per month
  • Unlimited simulations & product types
  • Cloud saves — access from any device
  • Excel export with full KPI breakdown
  • Sub-assembly modelling
Start free trial →

30-minute free trial · No credit card required

FAQ

Common questions

What is Flowcell?
A browser-based mixed-model assembly line simulator for lean teams, consultants, and improvement leads. Model the current line, test a future-state one-piece-flow cell, and find constraints before changing the real floor. No software to install - it runs entirely in your browser.
Do I need to install anything?
No. Flowcell runs entirely in your browser. No software to install, no IT department required. Works on any modern browser on desktop or tablet.
How long is the free trial?
You get 30 minutes of free simulation time — no credit card required. That's usually enough to build your first line, run several experiments, and get a clear picture of where your bottleneck is.
Is my data saved?
During the trial, your configuration is stored in your browser's local storage. Subscribe to unlock cloud saves, file exports, and team sharing.
Can lean consultants use Flowcell with clients?
Yes. Flowcell is designed to be fast enough for workshops and convincing enough for client conversations. White-label versions and custom features are available for selected consultancy partners - contact hello@flowcell.io if you want Flowcell to look and behave like your own tool.

Ready to test your future-state line?

Build your first mixed-model simulation in under 5 minutes.

Try it free →

30-minute free trial · No credit card required