Process Control Perfected

SPC Pro transforms manual Excel-based statistical process control into automated real-time monitoring—generating control charts, calculating capability indices, and triggering out-of-control alerts instantly.

SPC Dashboard - Critical Dimension In Control
X̄-R Chart: Bore Diameter Cpk: 1.67
UCL
CL
LCL
1.67
Cpk
1.82
Ppk
24.98
0.012
σ
90%
Less Manual Entry
Real-Time
Control Charts
0.6-1.5
FTEs Saved Annually
Instant
OOC Alerts

Complete Statistical Process Control

From data collection to capability studies, SPC Pro provides the digital infrastructure for world-class quality management.

📈

X̄-R Control Charts

Automated sample mean and range charts for critical dimensions with real-time plotting and control limit calculation.

📊

I-MR Charts

Individual and Moving Range charts for low-volume production or destructive testing scenarios with automatic subgrouping.

🎯

P-Charts & U-Charts

Attribute data tracking for defect rates from vision systems and inspection stations with variable sample size handling.

📐

Capability Analysis

Automated calculation of Cp, Cpk, Pp, Ppk with histograms, normality tests, and specification limit visualization.

🔢

Control Limit Calculation

Automatic UCL/LCL computation with recalculation workflows when processes change and historical limit tracking.

⚠️

Out-of-Control Actions

Structured OCAR documentation with Western Electric rules detection, root cause fields, and corrective action tracking.

📝

Data Collection Sheets

Digital measurement entry forms with validation, gage integration, and automatic feeding to SPC calculations.

📋

Process Change Records

Documentation of control limit recalculations with justification, approval workflow, and audit trail.

📑

SPC Reporting

Automated weekly/monthly reports with trend analysis, capability summaries, and out-of-control event statistics.

Every Chart Type You Need

SPC Pro supports the full range of variable and attribute control charts for comprehensive process monitoring.

📈

X̄-R Charts (Variable Data)

Track sample means and ranges for continuous measurement data from dimensional inspections, torque values, and process parameters.

Critical dimensions Torque values Weight measurements Temperature
📊

I-MR Charts (Individual Data)

Individual measurements with moving range for low-volume production, destructive testing, or batch process monitoring.

Destructive tests Low volume Batch processes Chemical analysis
🎯

P-Charts (Proportion Defective)

Track proportion of defective units from inspection operations with variable or constant sample sizes.

Pass/fail inspection Vision system rejects Final inspection Audit sampling
🔢

U-Charts (Defects per Unit)

Monitor defect density when multiple defects can occur on each unit, such as surface inspection or weld quality.

Surface defects Weld inspection Paint quality Assembly errors

Instant Capability Analysis

SPC Pro automatically calculates process capability indices from your control chart data, providing real-time visibility into process performance against specifications.

Cp
Process Capability
Potential capability (centered)
Cpk
Process Capability Index
Actual capability (with shift)
Pp
Process Performance
Long-term potential
Ppk
Performance Index
Long-term actual
1.67
Cpk
Cp 1.85
Cpk 1.67
Pp 1.78
Ppk 1.62
USL 25.10
LSL 24.90

Replace Spreadsheets with Smart SPC

SPC Pro digitizes the manual Excel templates your quality team uses daily, ensuring real-time analysis and instant alerts.

Measurement Data Collection

Digital data entry forms with validation rules, gage integration capability, and automatic feeding to control charts.

Structured measurement entry
Sample size validation
Operator identification
Gage/instrument tracking
Auto-plot to control charts
Characteristic
Bore Diameter
Sample #
247
Reading 1
24.98
Reading 2
25.01
Reading 3
24.99
X̄ (Mean)
24.993
R (Range)
0.03

Out-of-Control Action Report

Structured OCAR documentation triggered automatically when control chart violations are detected.

Automatic violation detection
Western Electric rules
Root cause documentation
Corrective action tracking
Verification sign-off
⚠️
Out-of-Control Action Report
OCAR-2026-0142
Characteristic
Bore Diameter
Violation
Above UCL
Value
25.08
UCL
25.05
Root Cause
Tool wear on boring bar - exceeded life

Process Capability Study

Formal capability study execution with histogram generation, normality testing, and index calculation.

Study setup wizard
Automated data collection
Histogram with normal curve
Cp/Cpk/Pp/Ppk calculation
Formal study report generation
Study ID
CAP-2026-0089
Sample Size
125
LSL
24.90
Target
25.00
USL
25.10
Result
CAPABLE (Cpk ≥ 1.33)
Cpk
1.67

Annual Manpower Savings

SPC Pro eliminates hours of manual data entry, chart creation, and report compilation—ensuring real-time process visibility while freeing your quality team.

Activity Hours/Day Days/Year Annual Hours FTE Equivalent
Manual data entry into SPC sheets 2-6 250 500-1,500 0.25-0.75
Control chart analysis/review 1-2 250 250-500 0.12-0.25
Capability study execution 4-8 50 200-400 0.1-0.2
OCAR documentation 1-2 100 100-200 0.05-0.1
Monthly/weekly SPC reporting 4-8 52 208-416 0.1-0.2
Total Potential Savings 1,258-3,016 0.62-1.5

Ready for Real-Time Process Control?

Join manufacturers achieving instant SPC visibility with automated control charts, capability analysis, and out-of-control alerts.

Request a Demo → Call Sales