Plastics and injection molding: Lean manufacturing software for plastics and injection molding plants
LeanSuite runs the daily routines of a plastics manufacturing plant in one place. It covers timed mold change checklists, press and dryer care, injection molding defects, setup skills and press safety. Every short shot, missed check or slow mold change becomes a tracked action with an owner.
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The problem
What slows plastics and injection molding plants down
Injection molding, extrusion and blow molding plants run many molds and materials on a few presses, often around the clock. Here is where that slows them down.
Mold changes and startup scrap
Every mold change means pulling one tool, hanging the next, connecting water and hot runner lines, then purging and dialing in until parts pass. Long changes push plants into long runs and extra stock, and the first shots after startup go in the scrap bin.
Short shots, flash, sink and other molding defects
Wet resin, a cold mold, a worn check ring or a setting changed on night shift can all move the process. Short shots, flash, sink marks and splay show up mid-run, and if the cause is never found the same defect returns the next time that mold runs.
Press, dryer, chiller and robot stops
A blocked water line, a failed heater band, a dryer that stopped drying or a robot that drops parts can idle a press for a shift. Short stops at the robot, conveyor or granulator rarely reach a downtime report, so nobody sees what they add up to.
Purge, regrind and resin lost to scrap
Color and material changes create purge and startup shots, and rejects pile up beside the press. Some goes back in as regrind within the limit the customer allows, the rest is scrap. Without a cost on each loss, nobody knows which mold or change wastes the most resin.
Setup skills held by a few technicians
Hanging molds, setting a process and fixing a robot take years to learn, and many plants lean on a handful of process technicians across every shift. When one is off, molds wait, or run on settings nobody wrote down.
Press, robot and hot mold safety
Operators reach into the mold area to clear stuck parts, technicians work on hot molds, heater bands and hydraulics, and robots move fast inside their guarding. Paper lockout binders and guard checks fall out of date.
How LeanSuite helps
How LeanSuite helps plastics and injection molding plants
Each problem maps to a LeanSuite module you can start with on its own, then connect to the rest.
Mold changes and startup scrap
In LeanSuite: Run each mold change as a digital checklist in Lean Creator, and Issue Management flags missing items. Every checklist logs how long each step took, so Kaizen & Projects shows which steps to attack. Vision AI can also split a filmed changeover into internal and external tasks; it is priced separately from the facility plan.
Short shots, flash, sink and other molding defects
In LeanSuite: Issue Management logs each defect where it is found, the QA Matrix costs and ranks it, and Kaizen & Projects runs the root-cause project. Every internal and customer defect gets an AA, A, B or C priority, and the top ones become Kaizen or CAPA projects. After a project closes, LeanSuite tracks that defect code for 90 days and reports the savings of the fix.
Quality Prioritization MatrixNon-Conformance (NCR)Cost of Poor Quality
Press, dryer, chiller and robot stops
In LeanSuite: Operators log each minor stop in one tap with its category, duration and cause, and Cost Management adds the stops up into a costed loss tree per machine. Digital CILR checklists put each press's clean, inspect, lubricate and retighten routine on the operator's Daily Standard Work, and operators flag an abnormality with a photo without leaving the checklist.
Purge, regrind and resin lost to scrap
In LeanSuite: Import your loss data and LeanSuite builds a loss tree that puts a cost on each loss, then tracks the savings as you remove them. Each record is sorted into a cost bucket and a causal or resultant loss, and a high-impact loss starts a Kaizen event in one click.
Setup skills held by a few technicians
In LeanSuite: LeanSuite keeps a live skills matrix: people qualify through training and digital sign-offs, and gaps show up before they cost you a shift. Film a mold setup once and LeanSuite drafts the work instruction with numbered steps, photos, tools, PPE and warnings from the video.
Competency ManagementDigital Work InstructionsJob Cover Matrix
Press, robot and hot mold safety
In LeanSuite: Lean Creator runs lockout procedures as photo-verified isolation steps, and only trained, authorized people can start a lockout. Anyone can report a near miss by scanning a QR code with their phone, and each hazard becomes a corrective action. Guard and interlock checks can run as scheduled audits with photo evidence.
Customers
Companies that use LeanSuite
Whirlpool case study
How Whirlpool tackled project visibility and continuous improvement across 14 manufacturing plants with LeanSuite.
Its Global Kaizen Power Pitch saw 150 Kaizen presented, $14.8M in hard savings and $17.6M in soft savings.
14
Manufacturing plants
150
Kaizen presented at the Global Kaizen Power Pitch
$14.8M
Hard savings
$17.6M
Soft savings
What getting started looks like
Under a week
Until your first module is live; our team does the setup
$3,000
90-day pilot per facility
One flat price per facility
Unlimited users, so adding people does not change the price
99.5%
Monthly uptime commitment in the service agreement
SOC 2 Type 1 audited, hosted on secure cloud infrastructure, with single sign-on through Microsoft Entra ID or Okta and employee-ID sign-in for operators without email. Details on the security page.
Want to try it on one line first? See how the 90-day pilot works.
Free tools
Related free calculators
Work out the numbers behind these problems. Each calculator shows its formula and a worked example, with no sign-up.
OEE calculator
Overall equipment effectiveness from shift time, downtime, ideal cycle time and part counts.
Open calculatorSMED changeover calculator
Time saved by moving changeover steps from internal to external, capacity freed per week and the smaller batch it allows.
Open calculatorScrap rate calculator
Scrap rate, the cost of scrap per period and per year, and what reaching a target rate would save.
Open calculatorProcess capability (Cp, Cpk) calculator
Cp and Cpk against your specification limits, plus Pp and Ppk from pasted measurements, with a distribution chart.
Open calculator
FAQ
Questions from plastics and injection molding plants
Yes. Each mold change runs as a digital checklist in Lean Creator, missing tools or parts are flagged as issues from the tablet, and every step is timed, so you can see which steps make the change long. Vision AI can also film a mold change and split it into internal and external tasks; it is priced separately from the facility plan.
Operators log each defect where it is found, with a photo. The QA Matrix puts a cost and an AA, A, B or C priority on each internal and customer defect, so engineering works on the costly ones first, and the top ones run as Kaizen or CAPA projects with root-cause analysis. Our lean playbook for molding plants lists the common defects, their usual causes and what to check first.
No. LeanSuite does not read PLCs, press controllers or sensors, and it is not an MES or a machine-monitoring system. Operators log stops, defects and checks on a phone or tablet, and LeanSuite runs the improvement work around your existing systems.
LeanSuite is not a certification, it is not a quality management system and it does not make a plant compliant. It helps molders run and evidence routines those standards call for, such as process audits, training records and corrective actions, with a time-stamped record of every check that can be exported for the auditor. Medical molders keep device and design records in their validated quality system.
LeanSuite is one flat price per facility with unlimited users, so every operator on every shift can use it without adding seats. There is no published annual price; you can request a quote on the pricing page. The first module is live in under a week, and LeanSuite's team does the setup. A 90-day pilot costs $3,000 per facility.
See LeanSuite on your mold changes and molding defects
Bring the press or mold you want to fix first. We will show you how LeanSuite handles it and what a 90-day pilot would cover.