Harvest & intake consistency
Track moisture, grade, and defect rates across fields, varieties, and receiving windows. Spot when a supplier or shift is drifting before it hits the customer.
JW Engineering Solutions LLC
Practical quality engineering for agriculture and beyond
Variation shows up in every harvest, line, and season.Turn field and facility data into decisions you can defend.
Growers, packers, and ag processors face the same quality playbook as any plant floor — monitor the process, map the defect, design the experiment, isolate the component, and cascade from symptom to root cause. Our practice is led by a Six Sigma Master Black Belt and Certified Quality Engineer with 25+ years of hands-on experience and 300+ engineers trained and coached on the floor and in the lab. In our experience, roughly 95% of manufacturing and quality issues respond to that small method set. ProCalc Toolset Suite encodes it as user-friendly workflows with step-by-step guidance — not generic charting or another spreadsheet. Demo any tool free for 20 minutes, then license the full suite for your team.
No subscription. 3-year access per license. All computation runs in your browser — your data stays on your device.
300+Engineers trained & coached
25+Years hands-on practice
95%Of quality issues fit a small method set
30Tools in ProCalc Toolset
Great for agriculture.
In agriculture, small shifts in moisture, grade, or line performance can erase margin fast — and buyers remember the season you missed spec. ProCalc Toolset is built to make those shifts visible early: monitor intake and process data, map where defects cluster, run focused experiments, and document root-cause work your customers and auditors can follow. We lead with agriculture because growers, packers, and processors need that rigor without a statistics degree — the same structured playbook that stabilizes a plant line, applied where weather, variety, and supplier mix constantly change the game.
Pack, process & cold chain
Run charts and capability studies on line speeds, weights, temperatures, and rework. Keep seasonal ramp-ups from turning into silent capability loss.
Structured problem solving
When a spike hits — bruising, foreign material, off-spec moisture — use guided workflows to isolate equipment, material, method, or environment without losing the trail.
Same methods, any regulated floor
These workflows are not crop-specific. Wherever measurable variation affects safety, yield, or compliance, the same pattern applies — including food and beverage, medical device, and aerospace production.
AgricultureFood & beverage processingMedical deviceAerospace
Why use ProCalc Toolset
- User-friendly tools built by a practitioner for practitioners.
- All work runs in your browser — your production data stays on your devices and JW Engineering does not have access to it.
- Built-in guidance and clear result summaries keep problem solvers on track and help prevent misreading the output.
- One full-suite license gives every engineer access to the complete problem-solving toolbox — structured investigations need the full workflow, not a partial toolkit.
- 3 full years of tool access per license allows users to buy once in lieu of yet another costly annual subscription to renew.
Problem solving workflow
Follow the master problem-solving workflow — nine stages from problem definition through verification. License the full suite to give your team every tool; demo any tool free before you buy.
Problem Solving Toolbox
Master workflow from problem definition through measurement, confirmation, analysis, documentation, and verification — follow the stages in order for structured investigations.
1. Define the problem & quantify impact
Clearly define the problem and quantify its impact so resources are directed to the right project.
5W 2H / Quality Alert Builder
Define the problem with 5W2H fields, build a recommended description, and publish a printable quality alert with photos, training sign-off, and operator instructions.
Included with full suite
COPQ Estimator
Helps quantify the impact of the problem and is instrumental in project selection — scrap, rework, warranty, and appraisal dollars.
Included with full suite2. Explore and narrow focus
Exploratory tools to narrow where the team should investigate — especially for transactional and spatial defects.
Exploration Cascade
Exploratory tool to narrow focus — cascade from error-state through measurement, process, and control splits.
Included with full suite
Process Flow Builder
Critical for transactional issues — build process flow charts with drag-and-drop steps and export for team review.
Included with full suite
Defect Location Map
Instrumental in determining where to focus within the process — zone defects on a part image and run Pareto by zone.
Included with full suite
Fishbone Diagram
Build an Ishikawa 6M fishbone to brainstorm cause branches after the problem is scoped and focus is narrowed.
Included with full suite3. Measurement system qualification
Confirm variable and attribute measurement systems before trusting the data.
Variable Gage R&R Study
Crossed or nested ANOVA gage study — repeatability, reproducibility, % study variation, tolerance, and ndc.
Included with full suite
Attribute MSA Study
Go/no-go gage agreement study: repeatability, reproducibility, and effectiveness percentages with scorecard.
Included with full suite
Sample Size Calculator
Answer “how many parts?” for capability studies, t-tests, and proportion estimates with clear assumptions.
Included with full suite4. Process confirmation
Monitor process behavior with control charts before deeper analysis.
SPC Workbench
Upload CSV/Excel, control limits, and interactive process charts to confirm stable process behavior.
Included with full suite
Attribute Control Charts
p, np, u, and c charts for defectives and defects — paste subgroup counts, get limits, and flag out-of-control points.
Included with full suite5. Distribution & failure analysis
Test distributions and model univariate failure or warranty behavior.
Chi-Square Test
Goodness-of-fit and test of independence — observed vs. expected counts with χ² contributions and contingency tables.
Included with full suite
Univariate Warranty Prediction Tool
Univariate failure-time modeling by days or mileage — distribution fit, expected failure %, and probability plots.
Included with full suite
Statistical Chart Builder
Build probability plots, boxplots, histograms, interval plots, and dotplots from a table or CSV.
Included with full suite
Scatter Plot with Groups
Plot every measurement across nested factor groups — CSV import, auto layout, and rotate factors for alternate views.
Included with full suite
Multi-Vari Chart
Classic multi-vari study — all points, within-cell ranges, mean connectors, CSV template, and factor layout rotation.
Included with full suite6. Component isolation & screening
Isolate critical components and screen characteristics across conforming vs. non-conforming units.
Assembly Swap Study
Validate baseline performance delta, then isolate critical components with single pairwise exchanges.
Included with full suite
Feature Screening
Screen characteristics for separation between extreme conforming and non-conforming units using Tukey end-count rules.
Included with full suite7. Regression, DOE & hypothesis testing
Model relationships, design experiments, and test hypotheses with structured statistical tools.
Simple Linear Regression
Analyze trends and relationships with scatter plots, fitted lines, R², and prediction intervals.
Included with full suite
DOE Tool
Design and analyze experiments efficiently — factorial plans, effects, and optimization.
Included with full suite
Multiple Regression Tool
Fit models with multiple predictors — coefficients, VIF, t-tests, and residual diagnostics.
Included with full suite
Hypothesis Testing Tool
2-sample T, paired T, and 1-way ANOVA — compare groups with normality checks and automatic test selection.
Included with full suite
Monte Carlo Study
Simulate factor variation through a regression equation — project DPMO, out-of-spec rate, and output histogram with USL/LSL.
Included with full suite8. Document learnings & sustain
Drive to systemic root cause, document learnings in FMEA and control plans, update audits, and close with 8D/A3.
3×5 Why Builder
Critical to drive down to systemic root cause — Specific, Detection, and Systemic Why chains with export for 8D/A3.
Included with full suite
PFMEA / DFMEA Lite
Document all learnings — RPN tables with severity/occurrence/detection scales and action tracking.
Included with full suite
Control Plan Builder
Document all learnings — OEM-ready control plans from process steps, characteristics, and reaction plans.
Included with full suite
LPA Builder
Add learnings to the audit template — layered process audits with scoring, NC tracking, and weekly workflow.
Included with full suite
8D / A3 Report Builder
Document process and findings — build complete 8D and A3 reports; submit to the customer when needed.
Included with full suite9. Capability & containment verification
Confirm process capability and prove containment or sort effectiveness.
Process Capability Analysis
Capability study — Cp/Cpk/Ppk with histogram and plain-language interpretation from pasted data.
Included with full suite
Containment Confirmation Tool
Confirm a sort or containment with exact binomial confidence, or size the sample to prove the reject rate beat a target.
Included with full suiteOpen the suite to demo tools or purchase a full-suite license.
Simple pricing
Full suite
All tools, one license
$27,850$8,500
3-year access to all 30 tools — save $19,350 (69% off catalog value).
Get startedTeam, site & enterprise
Multiple engineers, plant-floor iPads, or corporate rollout — pay through Stripe and licenses deploy automatically on your account.
- Team — 15% off suite price (5–15 seats)
- Site — 20% off suite price (16–50 seats)
- Enterprise — 25% off suite price (51–200 seats)
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Consulting & training
JW Engineering Solutions also offers coaching and workshop-style training on statistical problem solving — on a limited basis while balancing a full-time role. Software licenses are the primary offering; inquire if you need a short engagement to kick off a plant team.
- Virtual training & coaching: $200/hour flat rate (typically after hours or weekends)
- On-site visits: advance scheduling required; planned around limited availability
- Travel time (when on-site is agreed): same flat rate, 4–8 hours billable per engagement
- Travel expenses billed at cost
Inquiries: jwalker0188@outlook.com · 734-277-1214
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